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1. safetyINTEGRATED
ApplicationManualApplicationManual
SIRIUS Safety Integrated
Application Manual
Safety relays 3TK28
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2. SIRIUS Safety Integrated
Application Manual
- S.I.A.M. -
Safety relays 3TK28..
Safe load feeder 3RA71.
This documentation supplements
the user manuals of
safety relays 3TK28.. and
safe load feeders 3RA71.
Edition 02/2005
Important notes,
contents,
safety pilot
3TK282. and 3TK283.
relays outputs
3TK284.
electronic outputs
1
2
3TK2845
electronic / relays outputs
3TK285.
auxiliary relays
3
4
3RA71.
safe load feeders
Annex
5
A
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3. Note
The Safety Functional Examples are not binding and do not claim to be complete regarding the circuits
shown, equipping and any eventuality. The Safety Functional Examples do not represent customer-specific
solutions. They are only intended to provide support for typical applications. You are responsible in ensuring
that the described products are correctly used. These Safety Functional Examples do not relieve you of the
responsibility in safely and professionally using, installing, operating and servicing equipment. When using
these Safety Functional Examples, you recognize that Siemens cannot be made liable for any damage/claims
beyond the liability clause described above. We reserve the right to make changes to these Safety Functional
Examples at any time without prior notice. If there are any deviations between the recommendations
provided in these Safety Functional Examples and other Siemens publications - e.g. catalogue - then the
contents of the other documents have priority.
Date: 02.2005
Authors: Patrick Gehlen, Dipl. Ing. (TH), A&D CD CC AE
Werner Krämer, Dipl. Ing. (TH), A&D CD CC TE
Copyright© 2005 Siemens A&D. It is not permissible to transfer or copy these Safety Functional
Examples or excerpts of them without first having prior authorization from Siemens A&D in writing.
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4. Contents
SIRIUS Safety Integrated Application Manual – S.I.A.M. – III
Edition 02/2005
General terminology and abbreviations
OUT The enable circuit is a safety-relevant output
(refer to S, Sel, Stv and Sel tv).
K1, K2, ... Power contactors or
positively-driven contacts (according to IEC 60947) of the power contactors for the
feedback circuit of the safety relay.
Sel Electronic signaling contact
NC contact NC contact with the function of a signaling output.
NO contact
NOel
NOtv , NOel tv
NO contact with the function of a safety-relevant output (enable circuit).
Safety-related solid-state (semiconductor) output (enable circuit).
NO contact that opens with a delay (enable circuit)!
This contact is required to implement Stop Category 1 acc. to EN 60204-1.
Vs The supply or operating voltage of safety relays.
Comment: +24V DC is always available in the sensor circuit, independent of Vs.
Positively-opening contacts (acc. to IEC 947-5-1).
These are contacts that open as a direct result of a defined movement of an operator
element of a switch through elements that are not equipped with springs. For the
electrical equipment of machinery, it is mandatory that in all of the safety circuits,
opening contacts are always positively-driven.
manual
start
For a manual start, an enable signal is generated when the ON button is pressed. This
function is also designated as static operation and is specified for EMERGENCY STOP
devices (EN 60204-1, conscious action).
Safety relays with automatic start can be used up to Category 3:
The feedback circuit is statically monitored.
monitored start For a monitored start, an enable signal is generated when the ON button is pressed.
This function is also designated as static operation and is specified for EMERGENCY
STOP devices (EN 60204-1, conscious action).
Possible with safety relays up to Category 4:
The feedback circuit is dynamically monitored.
automatic
start
For an automatic start, an enable signal is generated without a manual agreement.
This function is also designated as dynamic operation and is not permissible for E Stop
devices.
cascading
(cascading
input)
Safety-relevant single-channel input of a safety relay that is internally evaluated just
the same as a sensor signal: Logically AND'ed with other signal encoder inputs. If a
voltage is not present, the safety relay safely shuts down the enable circuit (outputs).
Operational switching: Depending on the particular safety relay, the enable circuits
are switched with a monitored or an autostart
(refer to the Safety Navigator 3TK28 in the Attachment)
categories
acc. to EN 954-1
Categories B, 1, 2, 3 and 4 are described in EN 954-1:1999 (harmonized Standard in
the Machinery Directive):
The higher the Category, the higher the fault detection.
safe cable routing
acc. to EN 60439-1
Cables with basic insulation may not be routed over sharp edges or should be routed
e.g. in steel pipes/ducts (protective Class 2): This is used to exclude faults.
stop categories
acc. to EN 60204-1
The Stop Categories represent Stop functions to Stop machinery and equipment in an
emergency acc. to IEC 60204-1:
0 = instantaneous, 1 = delayed
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5. Contents
IV SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
Information on using the brochure
Symbols that have been used:
Supplementary information Notes
General notes
Note regarding all of the examples of Category 4 acc. to EN 954-1
Two (or also several) load contactors for Category 4 acc. to EN 954-1 may be
connected to a single enable circuit in a control cabinet
(a short-circuit as fault can be excluded). Also refer to the Attachment.
Note for all examples of Category 2 acc. to EN 954-1
With this circuit example, Category 2 according to EN 954-1 can only be fulfilled if, when an
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition:
Otherwise a second shutdown path is required.
Note regarding safe separation and cable routing
The objective is to achieve a high degree of operational safety.
In order to protect against parasitic (vagabond) voltages, the different voltages in a cable or piece
of equipment must be insulated against the highest voltage present
(protection against electric shock, IEC 61140)
Measure:
Do not route cables with basic insulation along sharp edges or route cables, for example, in a
steel pipe or duct
(Protective Class 2):
This measure is used to exclude faults (the highest degree of insulation).
category 2 according to EN 954-1
safety-related function machinery control
input 1
standard PLC
input 2
output
(signaling)
A1
Y33
3323Y12Y11Y10
Y44Y43 24 34Y34
3TK2825-1BB40
M
41
42
51
52
13Y22Y21
14A2PE
K1
L+(24V DC)
K1
START
K2K1
M
output of safety relay
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6. Contents
SIRIUS Safety Integrated Application Manual – S.I.A.M. – V
Edition 02/2005
Table of contents
Note............................................................................................................................................................ II
General terminology and abbreviations ................................................................................................... III
Information on using the brochure........................................................................................................... IV
General notes ............................................................................................................................................ IV
Table of contents........................................................................................................................................ V
Table of contents acc. function .................................................................................................................XI
Safety pilot ..............................................................................................................................................XVI
Homologation 3TK28. / 3RA71...............................................................................................................XVIII
Terminal connections 3TK28 ...................................................................................................................XIX
3TK282. 3TK283. Safety relays with relays outputs ............................................................................... 1-1
3TK2821 ................................................................................................................................................. 1-2
Category 2 (acc. EN 954-1) E-Stop monitoring Stop-Category 0.......................................................... 1-2
Category 3 (acc. EN 954-1) E-Stop monitoring Stop-Category 0.......................................................... 1-3
Category 2 (acc. EN 954-1) Protective door monitoring Stop-Category 0 ............................................ 1-4
Category 3 (acc. EN 954-1) Protective door monitoring Stop-Category 0 ............................................ 1-5
3TK2821 + 3TK2830 ............................................................................................................................... 1-6
category 2 (acc. EN 954-1) Protective door monitoring Stop-Category 0............................................. 1-6
Category 3 (acc. EN 954-1) E-Stop monitoring Stop-Category 0.......................................................... 1-7
categorie 3 (acc. EN 954-1) Protective door monitoring Stop-Category 0............................................. 1-8
3TK2822 ................................................................................................................................................. 1-9
Category 4 (acc. EN 954-1) Protective door monitoring Stop-Category 0 ............................................. 1-9
3TK2823 ............................................................................................................................................... 1-10
Category 4 (acc. EN 954-1) E-Stop monitoring Stop-Category 0........................................................ 1-10
3TK2823 + 3TK2830 + 3TK2830............................................................................................................ 1-11
Category 4 (acc. EN 954-1) E-Stop monitoring Stop-Category 0......................................................... 1-11
3TK2823 + 3TK2856 ............................................................................................................................. 1-12
Category 4 (acc. EN 954-1) E-Stop monitoring Stop-Category 0......................................................... 1-12
3TK2823 + 3TK2834 ............................................................................................................................. 1-13
Category 4 (acc. EN 954-1) E-Stop monitoring and two hand monitoring Stop-Category 0............... 1-13
3TK2823 + 3TK2830 + 3TK2824 + 3TK2824 ....................................................................................... 1-14
Category 4 (acc. EN 954-1) E-Stop monitoring Stop-Category 0........................................................ 1-14
3TK2824 ............................................................................................................................................... 1-15
Category 2 (acc. EN 954-1) E-Stop monitoring Stop-Category 0......................................................... 1-15
3TK2824-1AL20 .................................................................................................................................... 1-16
Category 2 (acc. EN 954-1) E-Stop monitoring Stop-Category 0......................................................... 1-16
Category 3 (acc. EN 954-1) E-Stop monitoring Stop-Category 0......................................................... 1-17
3TK2824 ............................................................................................................................................... 1-18
Category 3 (acc. EN 954-1) E-Stop monitoring Stop-Category 0......................................................... 1-18
Category 2 (acc. EN 954-1) protective door monitoring Stop-Category 0 .......................................... 1-19
Category 3 (acc. EN 954-1) protective door monitoring Stop-Category 0 ........................................... 1-20
3TK2825 ............................................................................................................................................... 1-21
Category 2 (acc. EN 954-1) protective door monitoring Stop-Category 0 .......................................... 1-21
3TK2825-1AL20 .................................................................................................................................... 1-22
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 1-22
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 1-23
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 1-24
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 1-25
Category 4 (acc. EN 954-1) protective door monitoring Stop-Category 0 .......................................... 1-26
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7. Contents
VI SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
Category 4 (acc. EN 954-1) Protective door monitoring Stop-Category 0 ........................................... 1-27
3TK2825 + 3TK2824 + 3TK2824.......................................................................................................... 1-28
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 1-28
3TK2825 + 3TK2830 + 3TK2825 + 3TK2825 ........................................................................................ 1-29
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 1-29
3TK2827 ............................................................................................................................................... 1-30
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0 and 1 .............................................. 1-30
Category 3/4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0 and 1 ............................................ 1-31
3TK2828 ............................................................................................................................................... 1-32
Category 2 (acc. EN 954-1) Protective door monitoring Stop-Category 0 and 1.................................. 1-32
Category 3/4 (acc. EN 954-1) Protective door monitoring Stop-Category 0 and 1............................... 1-33
3TK2828 + 3TK2830 + 3TK2830............................................................................................................ 1-34
Category 3/4 (acc. EN 954-1) Protective door monitoring Stop-Category 0 and 1.............................. 1-34
3TK2834 ............................................................................................................................................... 1-35
Category 4 (acc. EN 954-1) Two hand Monitoring Stop-Category 0 ................................................... 1-35
3TK2834 + 3TK2823 ............................................................................................................................. 1-36
Category 4 (acc. EN 954-1) E-Stop and Two hand Monitoring Stop-Category 0.................................. 1-36
3TK2834 ............................................................................................................................................... 1-37
Category 4 (acc. EN 954-1) E-Stop and Two hand Monitoring Stop-Category 0.................................. 1-37
3TK2834 + 3TK2835 ............................................................................................................................. 1-38
Category 4 (acc. EN 954-1) Two hand Monitoring with run-on distance check Stop-Category 0 ........ 1-38
3TK284. Safety relays with electronic outputs...................................................................................... 2-1
3TK2840 ................................................................................................................................................. 2-2
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 2-2
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 2-3
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................ 2-4
Category 3 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................ 2-5
3TK2840 + 3TK2830 + 3TK2830.............................................................................................................. 2-6
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................. 2-6
3TK2840 ................................................................................................................................................. 2-7
Category 3 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0............................................. 2-7
3TK2841 ................................................................................................................................................. 2-8
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 2-8
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 2-9
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 2-10
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 2-11
Category 4 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0........................................... 2-12
Category 4 (acc. EN 954-1) Light grid Monitoring Stop-Category 0 ................................................... 2-13
Category 3 (acc. EN 954-1) safety mat Monitoring Stop-Category 0.................................................. 2-14
3TK2841 + 3TK2830............................................................................................................................. 2-15
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 2-15
3TK2841 + 3TK2830 + 3TK2830............................................................................................................ 2-16
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 2-16
3TK2841 + 3TK2856 ............................................................................................................................. 2-17
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 2-17
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 2-18
3TK2841 + 3TK2857 ............................................................................................................................. 2-19
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 and 1................................. 2-19
3TK2841 + 3TK2841 + 3TK2841............................................................................................................ 2-20
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 2-20
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8. Contents
SIRIUS Safety Integrated Application Manual – S.I.A.M. – VII
Edition 02/2005
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 2-21
3TK2842 ............................................................................................................................................... 2-22
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0 and 1 .............................................. 2-22
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0 and 1 .............................................. 2-23
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 and 1................................. 2-24
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 and 1................................. 2-25
Category 4 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0 and 1 ................................. 2-26
Category 4 (acc. EN 954-1) Light grid Monitoring Stop-Category 0 and 1.......................................... 2-27
Category 3 (acc. EN 954-1) Safety mat Monitoring Stop-Category 0 and 1........................................ 2-28
3TK2842 + 3TK2830 + 3TK2830............................................................................................................ 2-29
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 and 1................................. 2-29
3TK2842 + 3TK2841 ............................................................................................................................. 2-30
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 and 1................................. 2-30
3TK2845 Safety relays with relays and electronic outputs .................................................................... 3-1
3TK2845 ................................................................................................................................................. 3-2
Category 2 (acc. EN 954-1) E-Stop and protective door Monitoring Stop-Category 0........................... 3-2
Category 4 (acc. EN 954-1) E-STOP and Protective door Monitoring Stop-Category 0.......................... 3-3
Category 2 (acc. EN 954-1) E-Stop and protective door Monitoring Stop-Category 0 and 1 ................. 3-4
Category 4 (acc. EN 954-1) E-Stop and protective door Monitoring Stop-Category 0 and 1 ................. 3-5
Category 4 (acc. EN 954-1) E-Stop and Light grid Monitoring Stop-Category 0.................................... 3-6
Category 4 (acc. EN 954-1) E-Stop and Light grid Monitoring Stop-Category 0 and 1.......................... 3-7
Category 2 (acc. EN 954-1) E-Stop and protective door Monitoring Stop-Category 0 and 1 ................. 3-8
Category 4 (acc. EN 954-1) E-Stop and protective door Monitoring Stop-Category 0 and 1 ................. 3-9
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9. Contents
VIII SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
3TK285. Safety relays with auxiliary relays.......................................................................................... 4-1
3TK2850 ................................................................................................................................................. 4-2
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 4-2
3TK2850-1LA20 ...................................................................................................................................... 4-3
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 4-3
3TK2850 ................................................................................................................................................. 4-4
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................ 4-4
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 4-5
3TK2850 + 3TK2830 ............................................................................................................................... 4-6
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 4-6
3TK2850 + 3TK2830 + 3TK2830.............................................................................................................. 4-7
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 4-7
3TK2850 + 3TK2856 ............................................................................................................................... 4-8
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 4-8
3TK2850 ................................................................................................................................................. 4-9
Category 3 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................ 4-9
3TK2850-1LA20 .................................................................................................................................... 4-10
Category 3 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0........................................... 4-10
3TK2851 ............................................................................................................................................... 4-11
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 4-11
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 4-12
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 4-13
Category 3 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 4-14
Category 3 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0........................................... 4-15
3TK2852 ............................................................................................................................................... 4-16
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 4-16
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 4-17
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 4-18
Category 3 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 4-19
Category 3 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0........................................... 4-20
3TK2853 ............................................................................................................................................... 4-21
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 4-21
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 4-22
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 4-23
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 4-24
Category 4 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0........................................... 4-25
Category 4 (acc. EN 954-1) Light grid Monitoring Stop-Category 0 ................................................... 4-26
Category 3 (acc. EN 954-1) Safety mat Monitoring Stop-Category 0 ................................................. 4-27
3TK2853 + 3TK2856 ............................................................................................................................. 4-28
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0........................................................ 4-28
3TK2853 + 3TK2857 ............................................................................................................................. 4-29
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 4-29
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10. Contents
SIRIUS Safety Integrated Application Manual – S.I.A.M. – IX
Edition 02/2005
3RA71. Safe load feeders...................................................................................................................... 5-1
3RA710-...-0AL2...................................................................................................................................... 5-2
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 5-2
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................ 5-3
Category 3 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 5-4
Category 3 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................ 5-5
Category 3 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0............................................. 5-6
3RA711................................................................................................................................................... 5-7
Category 2 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 5-7
Category 2 (acc. EN 954-1) protective door Monitoring Stop-Category 0 ............................................ 5-8
Category 4 (acc. EN 954-1) E-Stop Monitoring Stop-Category 0.......................................................... 5-9
Category 4 (acc. EN 954-1) protective door Monitoring Stop-Category 0 .......................................... 5-10
Category 4 (acc. EN 954-1) Magnet sensor Monitoring Stop-Category 0........................................... 5-11
Category 3 (acc. EN 954-1) Safety mat Monitoring Stop-Category 0 ................................................. 5-12
Category 4 (acc. EN 954-1) Light grid Monitoring Stop-Category 0 ................................................... 5-13
3RA711 + 3RA712 + 3TK2841 + 3TK2853.............................................................................................. 5-14
Category 4 (acc. EN 954-1) E-STOP Monitoring Protective door Monitoring Stop-Category 0............ 5-14
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11. Contents
X SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
ANNEX .....................................................................................................................................................A-1
Categories acc. to EN 954-1.....................................................................................................................A-2
Serial connection.....................................................................................................................................A-8
E-STOP command element...................................................................................................................A-8
protective door monitoring..................................................................................................................A-9
E-Stop command element and protective door monitoring ................................................................A-10
Manual start, monitored start and auto start..........................................................................................A-11
Safety-relevant (protected) routing, safe separation ..............................................................................A-12
Protective door monitoring with tumbler mechanism ............................................................................A-12
One output for category 3 and 4 with two switch gears........................................................................A-12
Technical Assistance for low-voltage switchgear....................................................................................A-13
NOTICES................................................................................................................................................A-14
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12. Contents
SIRIUS Safety Integrated Application Manual – S.I.A.M. – XI
Edition 02/2005
Table of contents acc. function
E-Stop Monitoring, Stop-Category 0
Category 2
3TK2821 1-2
3TK2821 + 3TK2830
3TK2824 1-15
3TK2824-1LA20 1-16
3TK2825 + 3TK2824 + 3TK2824 1-28
3TK2840 2-2
3TK2841 2-8
3TK2841 + 3TK2841 + 3TK2841 2-20
3TK2850 4-2
3TK2850-1LA20 4-3
3TK2851 4-11
3TK2852 4-16
3TK2853 4-21
3RA710 ... 5-2
3RA710 ... 5-7
Category 3
3TK2821 1-3
3TK2821 + 3TK2830 1-7
3TK2824 1-18
3TK2824-1LA20 1-17
3TK2840 2-3
3TK2841 + 3TK2841 + 3TK2841 2-21
3TK2850 4-5
3TK2850 + 3TK2830 4-6
3TK2850 + 3TK2830 + 3TK2830 4-7
3TK2851 4-13
3TK2852 4-18
3RA710 ... 5-4
Category 4
3TK2823 1-10
3TK2823 + 3TK2830 + 3TK2830 1-11
3TK2823 + 3TK2856 1-12
3TK2823 + 3TK2830 + 3TK2824 + 3TK2824 1-14
3TK2825-1LA20 1-24
3TK2825 + 3TK2830 + 3TK2825 + 3TK2825 1-29
3TK2841 2-9
3TK2841 + 3TK2856 2-17
3TK2853 4-23
3TK2853 + 3TK2856 4-23
3RA710 ... 5-7
E-Stop Monitoring, Stop-Category 0 and 1
Category 2
3TK2827 1-30
3TK2842 2-22
Category 3
3TK2827 1-31
Category 4
3TK2842 2-23
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13. Contents
XII SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
E-Stop and Protective door Monitoring, Stop-Category 0
Category 2
3TK2840 + 3TK2830 + 3TK2830 2-6
3TK2845 3-2
Category 4
3TK2845 3-3
E-Stop and Protective door Monitoring, Stop-Category 0 and 1
Category 2
3TK2840 + 3TK2830 + 3TK2830 2-6
3TK2845 3-4
Category 4
3TK2845 3-5
E-Stop and Light grid Monitoring, Stop-Category 0
Category 4
3TK2845 3-6
E-Stop and Light grid Monitoring, Stop-Category 0 and 1
Category 4
3TK2845 3-7
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14. Contents
SIRIUS Safety Integrated Application Manual – S.I.A.M. – XIII
Edition 02/2005
Protective door-Monitoring, Stop-Category 0
Category 2
3TK2821 1-4
3TK2821 + 3TK2830
3TK2824 1-19
3TK2825 1-21
3TK2840 2-4
3TK2841 2-10
3TK2841 + 3TK2841 + 3TK2841 2-20
3TK2850 4-4
3TK2851 4-12
3TK2852 4-17
3TK2853 4-22
3RA710 ... 5-3
3RA710 ... 5-8
Category 3
3TK2821 1-5
3TK2821 + 3TK2830 1-8
3TK2824 1-20
3TK2840 2-5
3TK2850 4-9
3TK2851 4-14
3TK2852 4-19
3RA710 ... 5-5
Category 4
3TK2822 1-19
3TK2824 1-10
3TK2825-1LA20 1-26
3TK2825 + 3TK2830 + 3TK2825 + 3TK2825 1-29
3TK2841 2-11
3TK2841 + 3TK2830 2-15
3TK2841 + 3TK2830 + 3TK2830 2-16
3TK2841 + 3TK2856 2-18
3TK2853 4-24
3TK2853 + 3TK2857 4-29
3RA710 ... 5-10
Protective door Monitoring, Stop-Category 0 and 1
Category 2
3TK2828 1-32
3TK2842 2-22
Category 3
3TK2828 1-33
3TK2828 + 3TK2830 + 3TK2830 1-34
Category 4
3TK2828 + 3TK2830 + 3TK2830 1-34
3TK2841 + 3TK2857 2-19
3TK2842 2-25
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15. Contents
XIV SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
Magnet sensor Monitoring, Stop-Category 0
Category 3
3TK2840 2-7
3TK2851 4-15
3TK2852 4-20
Category 4
3TK2841 2-12
3TK2842 2-26
3TK2853 4-25
3RA710 ... 5-11
Light grid Monitoring, Stop-Category 0
Category 3
3TK2851 4-15
3TK2852 4-20
Category 4
3TK2841 2-13
3TK2842 2-27
3TK2853 4-26
3RA710 ... 5-13
Safety mat Monitoring, Stop-Category 0
Category 3
3TK2841 2-14
3TK2842 2-28
3TK2853 4-27
3RA710 ... 5-12
Two hand Monitoring, Stop-Category 0
Category 4
3TK2834 1-35
Two hand Monitoring with run-on distance check , Stop-Category 0
Category 4
3TK2834 + 3TK2835 1-38
Two hand Monitoring and E-STOP Monitoring, Stop-Category 0
Category 4
3TK2834 1-37
3TK2834 + 3TK2823 1-36
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16. Contents
SIRIUS Safety Integrated Application Manual – S.I.A.M. – XV
Edition 02/2005
www.dienhathe.vn
www.dienhathe.com

17. Safetypilot3TK28
SIRIUSSafetyIntegratedApplicationManual–S.I.A.M.–XVI
Edition02/2005
Safetypilot3TK282./3TK283.
OUTOUTel.
3TK2821xxxxxx/-3NO1NCxx
3TK2822xxxxx/-2NOxx
3TK2823xxxx-/x2NOxx
3TK2824xxxxxx/-2NOxxxx
3TK2825xxxxxxx/x3NO2NCxxxx
3TK2827xxxxx-/x
2NO+2N
Otv1NCxxxx
3TK2828xxxxxx/-
2NO+
2NOtv1NCxxxx
3TK2830xx4NOxxxx
3TK2834x2NO2NCxxxx
3TK2835x3NO1NCxx
el.=safety-relatedelectronic(semiconductor)outpoutNO=normallyopencontact/output
OUT=safety-relatedoutput(contact,relay)NC=normallyclosed
tv=timeddelayedoutput(stop-category1)
safetyrelayswithrelayoutput
category
sensors
safety
relay
2
3
4
E-Stop
protective
door
supply
EN954-1EN60204-1voltageVs
signaling
output
stop-category
lightcurtain/
grid
contactmat
magnet
sensor
24VDC
twohand
Erweiterung
0
1
Nachlaufweg
24VAC
115VAC
230VAC
funtions
cascading
autostart/
monitore
start
operational
switching
safety-related
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18. Safetypilot3TK28
SIRIUSSafetyIntegratedApplicationManual–S.I.A.M.–XVII
Edition02/2005
Safetypilot3TK284./3TK285./3RA71.
OUTOUTel.
3TK2840xxxxxxxxx/x2
1)
x
3TK2841xxxxxxxxxx
3)
x/xx
3)
2x
3TK2842xxxxxxxxxxx
3)
x/xx
3)
1+1tvx
3TK2845xxxxxxxxxxx
2)
x/xx
2)
2NO21el.x
3TK2850xxxxxxxxx/x3NOSIRIUSxxxx
3TK2851xxxxxxxxx/x2NO1NOSIRIUSxxxx
3TK2852xxxxxxxxx/x6NO1NOSIRIUSxxxx
3TK2853xxxxxxxxxxx/xx3NO1SIRIUSx
3TK2856xxxx6NO11NOSIRIUSx
3TK2857xxxx3NOtv1SIRIUSx
3RA710xxxxxxxxx/x3NOSIRIUSxxxx
3RA711xxxxxxxxxxx/xx3NO1SIRIUSx
3RA712xxxx3NO1SIRIUSx
3RA713/4xxxx3NOtv1SIRIUSx
el.=safety-relatedelectronic(semiconductor)outpoutNO=normallyopencontact/out1)usingofpositively-drivenactuatorsisrequired
OUT=safety-relatedoutput(contact,relay)NC=normallyclosed2)operationalswitchingispossiblebyusingthecascadinginput1
tv=timeddelayedoutput(stop-category1)3)operationalswitchingwithautostartormonitoredstart
(dependingontheselectedstartfunctionofthesafetyrelay)
SIRIUS=usingSIRIUSaccessories
24VAC
115VAC
230VAC
24VDC
twohand
Erweiterung
0
1
funtions
cascading
autostart/
monitore
start
operational
switching
lightcurtain/
grid
contactmat
magnet
sensor
safety-related
voltageVs
signaling
output
stop-category
safety
relay
2
3
4
Nachlaufweg
E-Stop
protective
door
safetyrelayswithelectronic(semiconductor)/relayoutputs
safetyrelayswithauxiliarycontacts
safeloadfeeders
supply
EN954-1
category
sensors
safetyrelayswithelectronic(semiconductor)outputs
EN60204-1
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19. Homologation 3TK28
XVIII SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
Homologation 3TK28. / 3RA71.
Device BG TÜV UL CSA AOPD
EN 61496-1
Feuerungstechnik
VDE 0116
(Burning technology)
EN 954-1 IEC 61508
3TK2821 X X X X
3TK2822 X X X X
3TK2823 X X X X
3TK2824 X X X X
3TK2825 X X X X
3TK2827 X X X X
3TK2828 X X X X
3TK2830 X X X X
3TK2834 X X X X
3TK2835 X X X X
3TK2840 X X X X X
3TK2841 X X X X X X X
3TK2842 X X X X X X X
3TK2845 X X X X X X
3TK2850 X X X X X
3TK2851 X X X X X
3TK2852 X X X X X
3TK2853 X X X X X X
3TK2856 X X X X X
3TK2857 X X X X X
3RA710 X X X X X
3RA711 X X X X X X
3RA712 X X X X X
3RA713/4 X X X X X
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20. Terminal connections
SIRIUS Safety Integrated Application Manual – S.I.A.M. – XIX
Edition 02/2005
Terminal connections 3TK28
Safety-relays 3TK282.
clamp
function
3TK2821
3TK2822
3TK2823
3TK2824
24V
3TK2824
115V/230V
3TK2825
3TK2827/28
A1 Power supply L/+ X X X X X X X
A2 Power supply N/- X X X X X X X
Y1, Y2 Feedback circuit / ON button between
Y1-Y2
X X
Y10 Sensor circuit 1 one-channel between
Y10 – Y11, bridge between Y11 – Y12
and Y21 – Y22
X X
Y11, Y12 Sensor circuit 1 between Y11 – Y12 X1) X1) X X2) X2)
Y21, Y22 Sensor circuit 2 between Y21 – Y22 X1) X1) X3) X X
Y33, Y34 Feedback circuit, ON button between
Y33 – Y34
X X X X X
Y43, Y44 Auto start, bridge between Y43 – Y44;
monitored start, without bridge.
X
13-14
23-24
33-34
Enable circuit S: instantaneous X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
47-48
57-58
Enable circuit Stv: delayed X
X
31-32
41-42
51-52
Signaling contacts Ö
X X
X
X
1) The safety relay can only be used for two-channel sensors.
2) For tow-channel sensors, bridge between Y10 – Y11
3 For one-channel sensors to Y11 – Y12, bridge between Y21 – Y22
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21. Terminal connections
XX SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
Safety-relays 3TK284. / 3TK285. / 3RA71.
Clamp
Function
3TK2840
3TK2841
3TK2842
3TK2850,51,52
3RA710*
3TK2853
3RA711*
3TK2856,57
A1 Power supply L/+ X X X X X X
A2 Power supply N/- X X X X X X
1 Cascading input, start with positive voltage X X X X
3 Operational switching, (+24V supply for sensor
„operational switching“)
X X
4 Operational switching, input X X
Y11, Y12 Sensor circuit 1 between Y11 – Y12 X X X X X
Y20 One-channel operation when a jumper to Y21 is inserted X X
Y21, Y22 Sensor circuit 2 between Y21 – Y22 X X X X X
Y32 Auto start when supplied with +24V X X X
Y33 Feedback circuit between Y33 – Y34 for automatic start X X
Y33 Feedback circuit, ON button (+24V supply for feedback
circuit, On button)
X
Y34 Feedback circuit , ON button Input supplied by +24V X X X X X
Y35 Without cross-circuit fault detection for supply with a
positive voltage
X X X
2 Safety solid-state output X X
14
24
Safety solid-state output
Enable circuit Sel: instantaneous
X
X
X
X
X
28 Safety solid-state output
Enable circuit Sel tv: delayed
X
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22. Terminal connections
SIRIUS Safety Integrated Application Manual – S.I.A.M. – XXI
Edition 02/2005
Safety-relays 3TK2845
Clamp
Function
3TK2845
A1 Power supply + X
A2 Power supply - X
1 Cascading input (automatic start), start with positive voltage X
Y11 Sensor 1 circuit 1, output (test signal) X
Y12 Sensor 1 circuit 1, input monitored start X
Y21 Sensor 1 circuit 2, output (test signal) X
Y22 Sensor 1 circuit 2 input monitored start X
Y34 On button input X
Y35 Cross-circuit fault detection sensor 1 X
Y41 Sensor circuit 1, output (test signal) X
Y42 Sensor 2 circuit 1, input automatic start X
Y51 Sensor 2 circuit 2, output (test signal) X
Y52 Sensor 2 circuit 2, input automatic start X
Y64 Feedback circuit to plus X
Y65 Cross circuit detection Sensor 2 X
Y72 Sensor 3 key switch circuit 1, Input X
Y82 Sensor 3 key switch circuit 2, Input X
13-14
37-38
Enable circuit
(S, Stv: depending on device type)
X
24
48
Safety solid-state output
(Sel, Sel tv: acc. device type)
X
52 Electronic solid-state signaling output X
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23. www.dienhathe.vn
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24. SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 1
Edition 02/2005
3TK282.
3TK283.
Safety relays
with
relays
outputs
www.dienhathe.vn
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25. Safety relay Function Comments
1 - 2 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit.
The user must ensure that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
3TK2821 Category 2 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
3NO 1NC
Vs 24 V DC
manual start
M
K1
A1
41
332313Y2Y1
14A2 24 3442
3TK2821-1CB30
L+(24V DC)
M K1
K1ON
X
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26. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 3
Edition 02/2005
1
2
3
4
5
A
3TK2821 Category 3 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
3NO 1NC
Vs 24 V DC
manual start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit.
The user must ensure that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Category 4 according to EN 954-1 can be achieved with supplementary measures, e.g. by
routing cables in a safety-relevant fashion.
M
K2
K1
A1
41
332313Y2Y1
14A2 24 3442
3TK2821-1CB30
L+(24V DC)
M K1 K2
X
ON
K1
K2
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27. Safety relay Function Comments
1 - 4 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2821 Category 2 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0
3NO 1NC
Vs 24 V DC
auto start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit. when a contact
in the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
A1
41
332313Y2Y1
14A2 24 3442
3TK2821-1CB30
L+(24V DC)
M K1
X
K1
M
K1
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28. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 5
Edition 02/2005
1
2
3
4
5
A
3TK2821 Category 3 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0
3NO 1NC
Vs 24 V DC
auto start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit. when a contact
in the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Category 4 according to EN 954-1 can be achieved with supplementary measures, e.g. by
routing cables in a safety-relevant fashion.
A1
41
332313Y2Y1
14A2 24 3442
3TK2821-1CB30
L+(24V DC)
M K1 K2
X
K1
K2
M
K2
K1
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29. Safety relay Function Comments
1 - 6 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2821 + 3TK2830 Category 2 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0
6NO 1NC
Vs 24 V DC
auto start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit, when a contact
in the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
Up to eight 3TK2830 expansion devices may be connected to an FK (enable circuit) of the
basic 3TK2821 device.
If several expansion devices are cascaded, then the response times must be added.
If faults can be excluded – such as a P fault or M fault – then it is permissible to control an
expansion device (cascading) through one channel. This is always fulfilled within a control
cabinet or when connecting cables are routed in a protected fashion.
A1
41
332313Y2Y1
14A2 24 3442
3TK2821-1CB30
X
L+(24V DC)
M
K1...K4
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K1 K2 K3 K4
M
K1
K4
M
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30. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 7
Edition 02/2005
1
2
3
4
5
A
3TK2821 + 3TK2830 Category 3 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
6NO 1NC
Vs 24 V DC
manual start
M
K2
K1
M
K4
K3
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit. when a contact
in the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Up to eight 3TK2830 expansion devices may be connected to an FK (enable circuit) of the
basic 3TK2821 device.
If several expansion devices are cascaded, then the response times must be added.
If faults can be excluded – such as a P fault or M fault – then it is permissible to control an
expansion device (cascading) through one channel. This is always fulfilled within a control
cabinet or when connecting cables are routed in a protected fashion.
L+(24V DC)
3TK2821-1CB30
X
M
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K1...K4
A1
41
332313Y2Y1
14A2 24 3442
K1 K4K3K2
ON
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31. Safety relay Function Comments
1 - 8 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
L+(24V DC)
A1
41
332313Y2Y1
14A2 24 3442
3TK2821-1CB30
X
M
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K1...K4
K1 K4K3K2
3TK2821 + 3TK2830 Category 3 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0
6NO 1NC
Vs 24 V DC
auto start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit, when a contact
in the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
If several expansion devices are cascaded, then the response times must be added.
If faults can be excluded – such as a P fault or M fault – then it is permissible to control an
expansion device (cascading) through one channel. This is always fulfilled within a control
cabinet or when connecting cables are routed in a protected fashion.
M
K2
K1
M
K4
K3
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32. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 9
Edition 02/2005
1
2
3
4
5
A
3TK2822 Category 4 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0
2NO
Vs 24 V DC
auto start
The safety relay can only be used for two-channel sensors.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively opening contacts may be used as sensors.
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
3TK2822-1CB30
A1
Y21
Y332313Y12Y11
14A2 24 Y34Y22
L+(24V DC)
M K1 K2
K1
K2
M
K2
K1
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33. Safety relay Function Comments
1 - 10 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2823 Category 4 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
2NO
Vs 24 V DC
monitored start
The safety relay can only be used for two-channel sensors.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
M
K2
K1
3TK2823-1CB30
A1
Y21
Y332313Y12Y11
14A2 24 Y34Y22
L+(24V DC)
M K1 K2
K1
K2
ON
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34. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 11
Edition 02/2005
1
2
3
4
5
A
3TK2823 +
3TK2830 +
3TK2830
Category 4 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
9NO
Vs 24 V DC
monitored start
Up to eight 3TK2830 expansion devices may be connected to an FK (enable circuit) of the
basic 3TK2821 device.
The safety relay can only be used for two-channel sensors.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
If several expansion devices are cascaded, then the response times must be added.
If faults can be excluded – such as a P fault or M fault – then it is permissible to control an
expansion device (cascading) through one channel. This is always fulfilled within a control
cabinet or when connecting cables are routed in a protected fashion.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
M
Kn
Kn-1
M
K2
K1
3TK2823-1CB30
A1
Y21
Y332313Y12Y11
14A2 24 Y34Y22
L+(24V DC)
M K1
K1...K8
K5K3 K4K2
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K7 K8K6
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
ON
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35. Safety relay Function Comments
1 - 12 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2823 + 3TK2856 Category 4 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
7NO 1NOel. 1NC
Vs 24 V DC
monitored start
The safety relay can only be used for two-channel sensors.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
If faults can be excluded – such as a P fault or M fault – then it is permissible to control an
expansion device (cascading) through one channel. This is always fulfilled within a control
cabinet or when connecting cables are routed in a protected fashion.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
M
Kn
Kn-1
M
K2
K1
3TK2823-1CB30
A1
Y21
Y332313Y12Y11
14A2 24 Y34Y22
L+(24V DC)
M
X
K1
...
Kn
A1 A2
3TK2856-1BB40
A1 A2 332313
14 24 34
835343
44 54 84
71
72
1 2 3 4
K1 K2 Kn
ON
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36. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 13
Edition 02/2005
1
2
3
4
5
A
3TK2823 + 3TK2834 Category 4 (acc. EN 954-1)
E-Stop monitoring and
two hand monitoring
Stop-Category 0
2NO 2NC
Vs 24 V DC
monitored start
The safety relay 3TK2823 can only be used for two-channel sensors.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
M
K2
K1
3TK2834-1BB40
XX
K1 K2
K1...K2
A1 Y2
2
Y21Y12Y11
Y32
Y2
3
A2
312313 41
14 24 32Y33 42Y31
3TK2823-1CB30
A1
Y21
Y332313Y12Y11
14A2 24 Y34Y22
L+(24V DC)
M
ON
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37. Safety relay Function Comments
1 - 14 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2823 +
3TK2830 +
3TK2824 +
3TK2824
Category 4 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
3 Switchboards
3 E-Stop
When an Emergency Stop
button is pressed, all of
the 3TK28 device in the
switchboard shut up
6NO
Vs 24 V DC
monitored start
M
Km
Kn
M
K2
K1
The safety relay can only be used for two-channel sensors.
EMERGENCY STOP commanding devices are monitored by a 3TK28 in cabinet 1:
When an EMERGENCY STOP commanding device is actuated, all of the actuators in the
cabinets are shut down.
The actuators of a cabinet are monitored by the associated 3TK28.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
L+(24V DC)
M K2
ON
K1 K3
K3 ...K4
3TK2823-1CB30
A1
Y21
Y332313Y12Y11
14A2 24 Y34Y22
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K1 ...K2
A1 2313Y2Y1
14A2 24
3TK2824-1CB30
K4 K5
K5 ...K6
A1 2313Y2Y1
14A2 24
3TK2824-1CB30
K6
cabinet 1 cabinet 2 cabinet 3
www.dienhathe.vn
www.dienhathe.com

38. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 15
Edition 02/2005
1
2
3
4
5
A
3TK2824 Category 2 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
2NO
Vs 24 V DC
manual start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit. when a contact
in the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
M
K1
A1 2313Y2Y1
14A2 24
3TK2824-1BB40
L+(24V DC)
K1
ON
M K1
www.dienhathe.vn
www.dienhathe.com

39. Safety relay Function Comments
1 - 16 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2824-1AL20 Category 2 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
2NO
Vs 230 V AC
manual start
Not all faults are detected in the sensor circuit – e.g. a P fault in Y11 Y12 circuit, M fault in the
Y21 Y22 circuit, when a contact in the sensor welds. The user is responsible in ensuring that
these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
M
K1
A1 2313Y12Y11
14A2 24
Y33
Y34Y21 Y22
3TK2824-1AL20
L (230V AC)
N
K1
K1
ON
www.dienhathe.vn
www.dienhathe.com

40. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 17
Edition 02/2005
1
2
3
4
5
A
3TK2824-1AL20 Category 3 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
2NO
Vs 230 V AC
manual start
Not all faults are detected in the sensor circuit – e.g. a P fault in Y11 Y12 circuit, M fault in the
Y21 Y22 circuit, when a contact in the sensor welds. The user is responsible in ensuring that
these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
K1
K2
A1 2313Y12Y11
14A2 24
Y33
Y34Y21 Y22
3TK2824-1AL20
N K1
ON
L (230V AC)
K2
www.dienhathe.vn
www.dienhathe.com

41. Safety relay Function Comments
1 - 18 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2824 Category 3 (acc. EN 954-1)
E-Stop monitoring
Stop-Category 0
2NO
Vs 24 V DC
manual start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit. M fault in the A2
circuit, when a contact in the sensor welds. The user is responsible in ensuring that these
types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
ON
L+(24V DC)
M K1
A1 2313Y2Y1
14A2 24
3TK2824-1BB40
K1
...
K2
K2
www.dienhathe.vn
www.dienhathe.com

42. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 19
Edition 02/2005
1
2
3
4
5
A
3TK2824 Category 2 (acc. EN 954-1)
protective door
monitoring
Stop-Category 0
2NO
Vs 24 V DC
auto start
Not all faults are detected in the sensor circuit – e.g. a P fault in A1 circuit, when a contact in
the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
A1 2313Y2Y1
14A2 24
3TK2824-1BB40
L+(24V DC)
M
K1
K1
M
K1
www.dienhathe.vn
www.dienhathe.com

43. Safety relay Function Comments
1 - 20 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2824 Category 3 (acc. EN 954-1)
protective door
monitoring
Stop-Category 0
2NO
Vs 24 V DC
auto start
Not all faults are detected in the sensor circuit, e.g. a P fault in the A1 circuit, when a contact
in the sensor welds. The user is responsible in ensuring that these types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
A1 2313Y2Y1
14A2 24
3TK2824-1BB40
L+(24V DC)
M
K1
...
K2
K1 K2
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

44. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 21
Edition 02/2005
1
2
3
4
5
A
3TK2825 Category 2 (acc. EN 954-1)
protective door
monitoring
Stop-Category 0
3NO 2NC
Vs 24 V DC
auto start
Not all faults are detected in the sensor circuit – e.g. a P fault in Y10 Y11 circuit, when a
contact in the sensor welds. The user is responsible in ensuring that these types of faults do
not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
M
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
X X
L+(24V DC)
K1
K1
M
K1
www.dienhathe.vn
www.dienhathe.com

45. Safety relay Function Comments
1 - 22 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2825-1AL20 Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
3NO 2NC
Vs 230 V AC
monitored start
Not all faults are detected in the sensor circuit – e.g. a P fault in Y11 Y12 circuit, M fault in the
Y21 Y22 circuit, when a contact in the sensor welds. The user is responsible in ensuring that
these Types of faults do not occur.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
M
K1
A1
Y33
3323Y12Y11Y10
Y44Y43 24 34Y34
3TK2825-1AL20
X
L (230V AC)
N
41
42
51
52
13Y22Y21
14A2PE
K1
K1
ON
www.dienhathe.vn
www.dienhathe.com

46. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 23
Edition 02/2005
1
2
3
4
5
A
3TK2825 Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
3NO 2NC
Vs 24 V DC
monitored start
Only safety-relevant sensors with positively-opening contacts may be used as sensors. Two
oactuators (e.g. contactors) should be used in the load circuit.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
M
K1
A1
Y33
3323Y12Y11Y10
Y44Y43 24 34Y34
3TK2825-1BB40
X
M
41
42
51
52
13Y22Y21
14A2PE
K1
L+(24V DC)
K1
ON
www.dienhathe.vn
www.dienhathe.com

47. Safety relay Function Comments
1 - 24 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2825 + 3TK2830 Category 4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
6NO 2NC
Vs 24 V DC
monitored start
Up to eight 3TK2830 expansion devices can be connected to an FK (enable circuit) of the
3TK2825 basic device. When several expansion devices are cascaded, the response times
must be added. When circuit faults are excluded – such as P fault or M fault – then it is
permissible to control an expansion device through one channel (cascading). This condition is
always fulfilled within a control cabinet or when connecting cables are routed in a protected
fashion.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K6
K5
M
K2
K1
Y22
A1
51413323
34 42 5224
3TK2825-1BB40
M
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
X X
L+(24V DC)
K1...Kn
K1 K6K4 K5K3K2
ON
www.dienhathe.vn
www.dienhathe.com

48. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 25
Edition 02/2005
1
2
3
4
5
A
3TK2825 Category 4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
3NO 2NC
Vs 24 V DC
monitored start
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
M
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
X X
L+(24V DC)
K1 K2
K1... K2
ON
www.dienhathe.vn
www.dienhathe.com

49. Safety relay Function Comments
1 - 26 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
L+(24V DC)
M
X X
K1 K2
K1
K2
3TK2825 Category 4 (acc. EN 954-1)
protective door
monitoring
Stop-Category 0
3NO 2NC
Vs 24 V DC
autostart
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K1
www.dienhathe.vn
www.dienhathe.com

50. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 27
Edition 02/2005
1
2
3
4
5
A
3TK2825 + 3TK2830 Category 4 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0
6NO 2NC
Vs 24 V DC
auto start
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection). Up to eight 3TK2830 expansion devices can be connected to an FK (enable circuit)
of the 3TK2825 basic device. When several expansion devices are cascaded, the response
times must be added. When circuit faults are excluded – such as a P fault or a M fault – then it
is permissible to control an expansion device through one channel (cascading). This condition
is always fulfilled within a control cabinet or when connecting cables are routed in a
protected fashion.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
M
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
X X
L+(24V DC)
K1...K6
K1 K6K4 K5K3K2
M
Kn
Kn-1
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

51. Safety relay Function Comments
1 - 28 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
M
K1
M
K2
M
K3
3TK2825 +
3TK2824 +
3TK2824
Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
E-Stop distributed over
several cabinets
7NO 2NC
Vs 24 V DC
monitored start
EMERGENCY STOP is monitored by a 3TK2825; the 3TK28 monitors the actuators in the same
control cabinet. Always control the subsequent safety devices from the same, first safety
device. The reason for this is that when several safety relays are used in series, the response
times must be added. The 3TK2825 is required in order to maintain, e.g. a total response time
of e.g. 200ms.
Only safety-relevant sensors with positively-opening contacts may be used as sensors. Tow
actuators (e.g. contactors) should be used in the load circuit.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
L+(24V DC)
M
K1
ON
A1 2313Y2Y1
14A2 24
3TK2824-1BB40
A1 2313Y2Y1
14A2 24
3TK2824-1BB40
K2
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
K1 K2 K3
K3
cabinet 1 cabinet 2 cabinet 3
www.dienhathe.vn
www.dienhathe.com

52. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 29
Edition 02/2005
1
2
3
4
5
A
3TK2825 +
3TK2830 +
3TK2825 +
3TK2825
Category 4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
E-Stop distributed over
several cabinets
8NO 6NC
Vs 24 V DC
monitored start
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
M
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
X X
L+(24V DC)
K1...K2
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
M
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
X X
L+(24V DC)
K1...K3
K1 K2 K1 K3
ON
Y22
A2
51413323
34 42 5224
3TK2825-1BB40
M
A1 Y21Y12Y11Y10
Y44Y43 PEY34Y33
13
14
X X
L+(24V DC)
K1 K3
K1...K3
EMERGENCY STOP commanding devices are monitored by the 3TK2825 in cabinet 1: This is the
reason that the response times do not have to be added. The actuators are monitored by the
3TK28 in the same control cabinet.
The 3TK2825 in cabinet 1 operates with a monitored start.
The 3TK2825 in cabinets 2 and 3 operate with an automatic start.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with positively-
opening contacts may be used as sensors.
cabinet 1 cabinet 2 cabinet 3
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53. Safety relay Function Comments
1 - 30 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2827 Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0 and 1
2NO 2NOtv 1NC
Vs 24 V DC
monitored start
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
M
K1
K4
M
Y22
A2
57473123
32 48 5824
3TK2827-1BB40
A1 Y21Y12Y11Y10
PEY34Y33
13
14
L+(24V DC)
M K1 K2 K3 K4
X
K1... K4
ON
www.dienhathe.vn
www.dienhathe.com

54. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 31
Edition 02/2005
1
2
3
4
5
A
3TK2827 Category 3/4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0 and 1
2NO 2NOtv 1NC
Vs 24 V DC
monitored start
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
The time-delayed outputs switch according to Category 3 in compliance with EN 954-1.
M
K2
K1
M
K4
K3
Y22
A2
57473123
32 48 5824
3TK2827-1BB40
M
A1 Y21Y12Y11Y10
PEY34Y33
13
14
K1 K2 K3 K4
X
K1... K4
ON
www.dienhathe.vn
www.dienhathe.com

55. Safety relay Function Comments
1 - 32 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
Y22
A2
57473123
32 48 5824
3TK2828-1BB40
M
A1 Y21Y12Y11Y10
PEY34Y33
13
14
L+(24V DC)
X
K1 K2 K3 K4
K1
...
K4
3TK2828 Category 2 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0 and 1
2NO 2NOtv 1NC
Vs 24 V DC
auto start
Tow actuators (e.g. contactors) should be used in the load circuit.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
M
K1
K4
M
www.dienhathe.vn
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56. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 33
Edition 02/2005
1
2
3
4
5
A
3TK2828 Category 3/4 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0 and 1
2NO 2NOtv 1NC
Vs 24 V DC
auto start
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
The time-delayed outputs switch according to Category 3 in compliance with EN 954-1.
Y22
A2
57473123
32 48 5824
3TK2828-1BB40
M
A1 Y21Y12Y11Y10
PEY34Y33
13
14
L+(24V DC)
K1 K2 K3 K4
X
K1... K4
M
K2
K1
M
K4
K3
www.dienhathe.vn
www.dienhathe.com

57. Safety relay Function Comments
1 - 34 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2828 +
3TK2830 +
3TK2830
Category 3/4 (acc. EN 954-1)
Protective door monitoring
Stop-Category 0 and 1
4NO 4NOtv 1NC
Vs 24 V DC
auto start
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection). Up to eight 3TK2830 expansion devices may be connected to an FK (enable
circuit) of the basic 3TK2821 device.
When several expansion devices are cascaded, the response times must be added.
When circuit faults are excluded – such as a P fault or a M fault – then it is permissible to
control an expansion device through one channel (cascading). This condition is always
fulfilled within a control cabinet or when connecting cables are routed in a protected fashion.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K6
K5
M
K2
K1
Y22
A1
57473123
32 48 5824
3TK2828-1BB40
M
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
A1 Y21Y12Y11Y10
PEY34Y33
13
14
L+(24V DC)
K1...K6
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K1 K3 K2 K7 K8 K4 K5 K6
X
www.dienhathe.vn
www.dienhathe.com

58. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 35
Edition 02/2005
1
2
3
4
5
A
3TK2834 Category 4 (acc. EN 954-1)
Two hand Monitoring
Stop-Category 0
Type III C (EN 574)
2NO 2NC
Vs 24 V DC
two hand operating
When the pushbuttons are simultaneously actuated within 500 ms then the safety relay is
switched-in.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
3TK2834-1BB40
L+(24V DC)
M
XX
K1 K2
K1...K2
A1 Y22Y21Y12Y11
Y32
Y23
A2
312313 41
14 24 32Y33 42Y31
M
K2
K1
www.dienhathe.vn
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59. Safety relay Function Comments
1 - 36 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2834 + 3TK2823 Category 4 (acc. EN 954-1)
E-Stop and Two hand
Monitoring
Stop-Category 0
Type III C (EN 574)
2NO 2NC
Vs 24 V DC
monitored start
two hand operating
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
When the pushbuttons are simultaneously actuated within 500 ms then the safety relay is
switched-in.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
3
T
K
28
34-
1
B
B
40
XX
K1 K2
K1...K2
A1 Y2
2
Y21Y12Y11
Y32
Y2
3
A2
312313 41
14 24 32Y33 42Y31
3
T
K2
8
23-
1
C
B
30
A1
Y21
Y332313Y12Y11
14A2 24 Y34Y22
L+(24V DC)
M
ON
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

60. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual – S.I.A.M. – 1 - 37
Edition 02/2005
1
2
3
4
5
A
3TK2834 Category 4 (acc. EN 954-1)
E-Stop and Two hand
Monitoring
Stop-Category 0
Type III C (EN 574)
2NO 2NC
Vs 24 V DC
monitored start
two hand operating
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Two hand operating with E-STOP Monitoring.
When the pushbuttons are simultaneously actuated within 500 ms then the safety relay is
switched-in.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
3TK2834-1BB40
XX
K1 K2
K1...K2
A1 Y2
2
Y21Y12Y11
Y32
Y2
3
A2
312313 41
14 24 32Y33 42Y31
L+(24V DC)
M
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

61. Safety relay Function Comments
1 - 38 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2834 + 3TK2835 Category 4 (acc. EN 954-1)
Two hand Monitoring with
run-on distance check
Stop-Category 0
Type III C (EN 574)
2NO 2NC
Vs 24 V DC
two hand operating
When the pushbuttons are simultaneously actuated within 500 ms then the safety relay is
switched-in.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
X
3TK2834-1BB40
L+(24V DC)
M X
A1 Y14Y13Y12Y11
Y33Y31
3TK2835-1BB40
2313 33
14 23 34Y32 A2
41
42
K4S3
PE
S4
S2
OT
Y34
Y21 Y22
K4 K2 K3
K1
K2
K4
S6
S7
S5
K1
S1
A1 Y2
2
Y21Y12Y11
Y32
Y2
3
A2
312313 41
14 24 32Y33 42Y31
M
K4
K3
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

62. SIRIUS Safety Integrated Application Manual – S.I.A.M. – 2 - 1
Edition 02/2005
3TK284.
Safety relays
with
electronic
outputs
www.dienhathe.vn
www.dienhathe.com

63. Safety relay Function Comments
2 - 2 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2840 Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
2NOel.
Vs 24 V DC
monitored start
M
K1
The output drivers (Sel) are only monitored via the external actuators – i.e. using the feedback
circuit (Y34). This is the reason that this device may only be used in conjunction with
positively-driven actuators.
Only safety-relevant sensors with positively-opening contacts may be used as sensors.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
3TK2840-1BB40
A1
Y20
Y34Y12Y11Y33
Y22A2 14 24Y21
ON
K1
www.dienhathe.vn
www.dienhathe.com

64. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 3
Edition 02/2005
1
2
3
4
5
A
3TK2840 Category 3 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
2NOel.
Vs 24 V DC
monitored start
The output drivers (Sel) are only monitored via the external actuators – i.e. using the feedback
circuit (Y34). This is the reason that this device may only be used in conjunction with
positively-driven actuators.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
L+(24V DC)
M
3TK2840-1BB40A1
Y20
Y34Y12Y11Y33
Y22A2 14 24Y21
ON
K1 K2
www.dienhathe.vn
www.dienhathe.com

65. Safety relay Function Comments
2 - 4 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2840 Category 2 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
2NOel.
Vs 24 V DC
auto start
The output drivers (Sel) are only monitored via the external actuators – i.e. using the feedback
circuit (Y34). This is the reason that this device may only be used in conjunction with positively-
driven actuators.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
L+(24V DC)
M
3TK2840-1BB40
A1
Y20
Y34Y12Y11Y33
Y22A2 14 24Y21
K1
M
K1
www.dienhathe.vn
www.dienhathe.com

66. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 5
Edition 02/2005
1
2
3
4
5
A
3TK2840 Category 3 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
2NOel.
Vs 24 V DC
auto start
The output drivers (Sel) are only monitored via the external actuators – i.e. using the feedback
circuit (Y34). This is the reason that this device may only be used in conjunction with
positively-driven actuators.
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
3TK2840-1BB40A1
Y20
Y34Y12Y11Y33
Y22A2 14 24Y21
K1 K2
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

67. Safety relay Function Comments
2 - 6 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2840 +
3TK2830 +
3TK2830
Category 2 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
8NO
Vs 24 V DC
auto start
The output drivers (Sel) are only monitored via the external actuators – i.e. using the feedback
circuit (Y34). This is the reason that this device may only be used in conjunction with positively-
driven actuators.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
L+(24V DC)
M
K1
...
K8
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30 A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K1 K8K2 K3 K4 K5 K6 K7
3TK2840-1BB40
A1
Y20
Y34Y12Y11Y33
Y22A2 14 24Y21
M
K1
M
K8
www.dienhathe.vn
www.dienhathe.com

68. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 7
Edition 02/2005
1
2
3
4
5
A
3TK2840 Category 3 (acc. EN 954-1)
Magnet sensor Monitoring
Stop-Category 0
2NOel.
Vs 24 V DC
auto start
The output drivers (Sel) are only monitored via the external actuators – i.e. using the feedback
circuit (Y34). This is the reason that this device may only be used in conjunction with positively-
driven actuators.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
L+(24V DC)
M
3TK2840-1BB40
A1
Y20
Y34Y12Y11Y33
Y22A2 14 24Y21
K1 K2
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

69. Safety relay Function Comments
2 - 8 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2841 Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
2NOel
Vs 24 V DC
monitored start
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
M
K1
L+(24V DC)
ON
K1
3TK2841-1BB40
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
M
K1
www.dienhathe.vn
www.dienhathe.com

70. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 9
Edition 02/2005
1
2
3
4
5
A
3TK2841 Category 4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
2NOel
Vs 24 V DC
monitored start
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
L+(24V DC)
M
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
K1
K2
ON
K1 K2
3TK2841-1BB40
www.dienhathe.vn
www.dienhathe.com

71. Safety relay Function Comments
2 - 10 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2841 Category 2 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
2NOel
Vs 24 V DC
auto start
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
L+(24V DC)
M
3TK2841-1BB40A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
K1
K1
M
K1
www.dienhathe.vn
www.dienhathe.com

72. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 11
Edition 02/2005
1
2
3
4
5
A
3TK2841 Category 4 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
2NOel
Vs 24 V DC
auto start
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
3TK2841-1BB40A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
K1...K2
K1 K2
M
K2
K1
www.dienhathe.vn
www.dienhathe.com

73. Safety relay Function Comments
2 - 12 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2841 Category 4 (acc. EN 954-1)
Magnet sensor Monitoring
Stop-Category 0
2NOel.
Vs 24 V DC
auto start
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
L+(24V DC)
M
3TK2841-1BB40
3SE6604-2BA
K1
...
K2
K1 K2
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
www.dienhathe.vn
www.dienhathe.com

74. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 13
Edition 02/2005
1
2
3
4
5
A
3TK2841 Category 4 (acc. EN 954-1)
Light grid Monitoring
Stop-Category 0
Light grid
Type 4 (EN 61496-1)
2NOel.
Vs 24 V DC
auto start
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
L+(24V DC)
M
3TK2841-1BB40
1
2
3
4
5
6
7
+ 24V
0V
PE
1
2
3
4
5
6
7
+24V
0V
PE
K1
...
K2
K1 K2
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
www.dienhathe.vn
www.dienhathe.com

75. Safety relay Function Comments
2 - 14 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2841 Category 3 (acc. EN 954-1)
safety mat Monitoring
Stop-Category 0
2NOel.
Vs 24 V DC
auto start
Category 3 according to EN 954-1 of this circuit is as a result of the safety mat.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
L+(24V DC)
M
3TK2841-1BB40
K1...K2
K1 K2
safety mat
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
www.dienhathe.vn
www.dienhathe.com

76. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 15
Edition 02/2005
1
2
3
4
5
A
3TK2841 +
3TK2830
Category 4 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
2NOel 5NC 1 signal lamp
Vs 24 V DC
auto start
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
M
K2
K1
M
K4
K3
L+(24V DC)
M
K1
...
K4
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K2 K3 K4
3TK2841-1BB40
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
K1
www.dienhathe.vn
www.dienhathe.com

77. Safety relay Function Comments
2 - 16 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2841 +
3TK2830 +
3TK2830
Category 4 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
2NOel 6NO
Vs 24 V DC
auto start
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
K1
...
Kn
A1
51
3323134443
14A2 24 3452
3TK2830-1CB30 A1
51
3323134443
14A2 24 3452
3TK2830-1CB30
K2 KnK3 K4 K5 K6 K7 K8
3TK2841-1BB40
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
K1
www.dienhathe.vn
www.dienhathe.com

78. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 17
Edition 02/2005
1
2
3
4
5
A
3TK2841 +
3TK2856
Category 4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
2NOel 6NO 1NC
Vs 24 V DC
monitored Start
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
A1 A2
3TK2856-1BB40
A1 A2 332313
14 24 34
L+(24V DC)
M
835343
44 54 84
71
72
X
3TK2841-1BB40
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
1 2 3 4
K1...Kn
K1 K2 Kn
ON
www.dienhathe.vn
www.dienhathe.com

79. Safety relay Function Comments
2 - 18 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2841 +
3TK2856
Category 4 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0
2NOel 6NO 1NC
Vs 24 V DC
auto start
A1 A2
3TK2856-1BB40
A1 A2 332313
14 24 34
L+(24V DC)
M
835343
44 54 84
71
72
X
3TK2841-1BB40
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
1 2 3 4
K1...Kn
K1 K2 Kn
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
www.dienhathe.vn
www.dienhathe.com

80. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 19
Edition 02/2005
1
2
3
4
5
A
3TK2841 +
3TK2857
Category 4 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0 and 1
2NOel 3NOtv
Vs 24 V DC
auto start
L+(24V DC)
M
3TK2841-1BB40
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
K1...Kn
A1 A2
3TK2857-1BB40
A1 A2 332313
14 24 34
1 2 3 4
K1 Kn
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
www.dienhathe.vn
www.dienhathe.com

81. Safety relay Function Comments
2 - 20 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when
the actuator fails, either an alarm is automatically generated or the machine control initiates a
safe condition. Otherwise a second shutdown path is required.
3TK2841 +
3TK2841 +
3TK2841
Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
3 Switchboards
3 E-Stop
When an E-Stop button is
pressed, all of the 3TK28
devices in the switchboard
shut down.
6NOel
Vs 24 V DC
monitored start
L+(24V DC)
M
ON
3TK2841-1BB40
3TK2841-1BB40
3TK2841-1BB40
K1 K2 K3 K4 K5 K6
K1
K2
K5
K6K3
K4
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
cabinet 1 cabinet 2 cabinet 3
www.dienhathe.vn
www.dienhathe.com

82. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 21
Edition 02/2005
1
2
3
4
5
A
3TK2841 +
3TK2841 +
3TK2841
Category 4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0
3 Switchboards
3 E-Stop
When an E-Stop button is
pressed, all of the 3TK28
devices in the switchboard
shut down.
6NOel
Vs 24 V DC
monitored start
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
ON
K1
K2
3TK2841-1BB40
3TK2841-1BB40
3TK2841-1BB40
K1 K2
K3
K4
K3 K4
K5
K6
K5 K6
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
A1
Y35
Y34Y12Y11Y321
Y22A2 14 24Y21
cabinet 1 cabinet 2 cabinet 3
www.dienhathe.vn
www.dienhathe.com

83. Safety relay Function Comments
2 - 22 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2842 Category 2 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0 and 1
1NOel 1NOel tv
Vs 24 V DC
monitored start
The controller enable of the frequency inverter is controlled directly – and the power contactor,
with a time delay.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
L+(24V DC)
M
3TK2842-1BB41/2/4
A1
Y35
Y34Y12Y11Y321
Y22A2 14 28Y21
tv
K1
ON
K1
M
K1
FU
www.dienhathe.vn
www.dienhathe.com

84. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 23
Edition 02/2005
1
2
3
4
5
A
3TK2842 Category 4 (acc. EN 954-1)
E-Stop Monitoring
Stop-Category 0 and 1
1NOel 1NOel tv
Vs 24 V DC
monitored start
The controller enable of the frequency inverter is controlled directly – and the power
contactor, with a time delay.
For Category 4, several EMERGENCY STOP commanding devices may be connected in series.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
3TK2842-1BB41/2/4
tv
ON
M K1 K2 M
K1
K2
FU
K1
...
K2
A1
Y35
Y34Y12Y11Y321
Y22A2 14 28Y21
www.dienhathe.vn
www.dienhathe.com

85. Safety relay Function Comments
2 - 24 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2842 Category 2 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0 and 1
1NOel 1NOel tv
Vs 24 V DC
auto start
The controller enable of the frequency inverter is controlled directly – and the power contactor,
with a time delay.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled, if, when the
actuator fails, either an alarm is automatically generated or the machine control initiates a safe
condition. Otherwise a second shutdown path is required.
L+(24V DC)
3TK2842-1BB41/2/4
tv
A1
Y35
Y34Y12Y11Y321
Y22A2 14 28Y21
M
K1
FU
M
K1
K1
www.dienhathe.vn
www.dienhathe.com

86. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 25
Edition 02/2005
1
2
3
4
5
A
3TK2842 Category 4 (acc. EN 954-1)
protective door
Monitoring
Stop-Category 0 and 1
1NOel 1NOel tv
Vs 24 V DC
auto start
The controller enable of the frequency inverter is controlled directly – and the power
contactor, with a time delay.
For Category 4, it is not permissible to connect several position switches in series to
implement a protective door monitoring function (due to an inadequate level of fault
detection).
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
3TK2842-1BB41/2/4
tv
K1
...
K2
K1 K2 M
K1
K2
FU
A1
Y35
Y34Y12Y11Y321
Y22A2 14 28Y21
www.dienhathe.vn
www.dienhathe.com

87. Safety relay Function Comments
2 - 26 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2842 Category 4 (acc. EN 954-1)
Magnet sensor Monitoring
Stop-Category 0 and 1
1NOel 1NOel tv
Vs 24 V DC
auto start
The controller enable of the frequency inverter is controlled directly – and the power
contactor, with a time delay.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
3SE6604-2BA
3TK2842-1BB41/2/4
tv
K1
...
K2
K1 K2 M
K1
K2
FU
A1
Y35
Y34Y12Y11Y321
Y22A2 14 28Y21
www.dienhathe.vn
www.dienhathe.com

88. Safety relay Function Comments
SIRIUS Safety Integrated Application Manual –S.I.A.M. – 2 - 27
Edition 02/2005
1
2
3
4
5
A
3TK2842 Category 4 (acc. EN 954-1)
Light grid Monitoring
Stop-Category 0 and 1
Light grid
Type 4 (EN 61496-1)
1NOel 1NOel tv
Vs 24 V DC
auto start
The controller enable of the frequency inverter is controlled directly – and the power
contactor, with a time delay.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
1
2
3
4
5
6
7
+ 24V
0V
PE
1
2
3
4
5
6
7
+24V
0V
PE
3TK2842-1BB41/2/4
tv
K1
...
K2
K1 K2 M
K1
K2
FU
A1
Y35
Y34Y12Y11Y321
Y22A2 14 28Y21
www.dienhathe.vn
www.dienhathe.com

89. Safety relay Function Comments
2 - 28 SIRIUS Safety Integrated Application Manual – S.I.A.M. –
Edition 02/2005
1
2
3
4
5
A
3TK2842 Category 3 (acc. EN 954-1)
Safety mat Monitoring
Stop-Category 0 and 1
1NOel 1NOel tv
Vs 24 V DC
auto start
Category 3 according to EN 954-1 of this circuit is as a result of the safety mat.
The controller enable of the frequency inverter is controlled directly – and the power
contactor, with a time delay.
Sensor cables must be routed so that they are protected; only safety-relevant sensors with
positively-opening contacts may be used as sensors.
L+(24V DC)
M
3TK2842-1BB41/2/4
tv
K1
...
K2
K1 K2 M
K1
K2
FU
safety mat A1
Y35
Y34Y12Y11Y321
Y22A2 14 28Y21
www.dienhathe.vn
www.dienhathe.com