This document provides technical specifications for a 2000-SERIES single phase damper electrical actuator made by sdtork. It is intended for damper operation and includes details on its linear output motion, manual override, travel limit switches, non-blocking AC synchronous motor, and optional accessories like feedback potentiometers, additional limit switches, and remote position indicators. The actuator has an 18 month warranty and will be inspected by the customer at the manufacturer's works during packing in thermo cool housing within a corrugated box.
1.Introduction
The 555 IC was designed in 1971 by Hans Camenzind under contract to SigNetics Corporation.
555 timer is a highly stable circuit used to generate time delays, or Oscillations.
A single 555 timer can provide time delay ranging from microseconds to hours.
It operates from a wide range of power supplies ranging from + 5 Volts to + 18 Volts supply voltage.
2.Pin Configuration
3.Working of Pin
4.555 Integral circuit
5.Operating modes of IC
6. Bistable Mode
In bistable (also called Schmitt trigger) mode, the 555 timer acts as a basic flip-flop.
The trigger and reset inputs (pins 2 and 4 respectively on a 555) are held high via pull-up resistors while the threshold input (pin 6) is simply floating.
Thus configured, pulling the trigger momentarily to ground acts as a 'set' and transitions the output pin (pin 3) to Vcc (high state).
Pulling the reset input to ground acts as a 'reset' and transitions the output pin to ground (low state). No timing capacitors
Pin 5 (control voltage) is connected to ground via a small-value capacitor (usually 0.01 to 0.1 μF). Pin 7 (discharge) is left floating
7.Monostable Mode
Pulse generator circuit which the period is calculated from RC network and connected to external of 555 timer
Stable when the output logic LOW (logic = 0)
When a pulse is trigger at pin 2 (normally negative trigger pulse), timer output will change to HIGH (+Vs) for a while and change to LOW (stable condition). The condition will continue LOW until pulse is trigger again.
The timing period is triggered (started) when trigger input (555 pin 2) is less than 1/3 Vs, this makes the output high (+Vs) and the capacitor C1 starts to charge through resistor R1. Once the time period has started further trigger pulses are ignored.
The threshold input (555 pin 6) monitors the voltage across C1 and when this reaches 2/3 Vs the time period over and the output becomes LOW,
At the same time discharge (555 pin 7) is connected to 0V, discharging the capacitor ready for the next trigger.
8.Astable Mode
Astable multivibrators are also known as Free-running Multivibrator.
Astable do not need trigger pulse for external to change the output.
The period for LOW and HIGH can be calculated based on resistor and capacitor value that connected at outside of timer.
9.Applications
Schmitt trigger
PPM
PWM
Linear Ramp generator
Precision Timing
Pulse Generation
Time Delay Generation
Sequential Timing
Used as a quad timer
10. Conclusion
Hence 555 IC timer can produce very accurate and stable time delays, from microseconds to hours. It can be used with supply voltage varying from 5 to 18 V. Timer can be used in monostable mode of operation or astable mode of operation. Its various applications include waveform generator, missing pulse detector, frequency divider, pulse width modulator, burglar alarm, FSK generator, ramp generator, pulse position modulator etc.
ICL7660 Monolithic CMOS Voltage ConvertersGeorgage Zim
ICL7660 and ICL7660A contain all the necessary circuitry to complete a negative voltage converter, with the exception of 2 external capacitors which may be inexpensive 10μF polarized electrolytic types. Please visit for more information http://www.intersil.com/en/products/power-management/isolated-power/charge-pumps/ICL7660.html
Vues du Zinc est le magazine des professionnels du zinc en France.
Venez découvrir dans ce magazine : des projets en zinc en Ile de France et Normandie, des produits adaptés à la couverture, un chantier test…
1.Introduction
The 555 IC was designed in 1971 by Hans Camenzind under contract to SigNetics Corporation.
555 timer is a highly stable circuit used to generate time delays, or Oscillations.
A single 555 timer can provide time delay ranging from microseconds to hours.
It operates from a wide range of power supplies ranging from + 5 Volts to + 18 Volts supply voltage.
2.Pin Configuration
3.Working of Pin
4.555 Integral circuit
5.Operating modes of IC
6. Bistable Mode
In bistable (also called Schmitt trigger) mode, the 555 timer acts as a basic flip-flop.
The trigger and reset inputs (pins 2 and 4 respectively on a 555) are held high via pull-up resistors while the threshold input (pin 6) is simply floating.
Thus configured, pulling the trigger momentarily to ground acts as a 'set' and transitions the output pin (pin 3) to Vcc (high state).
Pulling the reset input to ground acts as a 'reset' and transitions the output pin to ground (low state). No timing capacitors
Pin 5 (control voltage) is connected to ground via a small-value capacitor (usually 0.01 to 0.1 μF). Pin 7 (discharge) is left floating
7.Monostable Mode
Pulse generator circuit which the period is calculated from RC network and connected to external of 555 timer
Stable when the output logic LOW (logic = 0)
When a pulse is trigger at pin 2 (normally negative trigger pulse), timer output will change to HIGH (+Vs) for a while and change to LOW (stable condition). The condition will continue LOW until pulse is trigger again.
The timing period is triggered (started) when trigger input (555 pin 2) is less than 1/3 Vs, this makes the output high (+Vs) and the capacitor C1 starts to charge through resistor R1. Once the time period has started further trigger pulses are ignored.
The threshold input (555 pin 6) monitors the voltage across C1 and when this reaches 2/3 Vs the time period over and the output becomes LOW,
At the same time discharge (555 pin 7) is connected to 0V, discharging the capacitor ready for the next trigger.
8.Astable Mode
Astable multivibrators are also known as Free-running Multivibrator.
Astable do not need trigger pulse for external to change the output.
The period for LOW and HIGH can be calculated based on resistor and capacitor value that connected at outside of timer.
9.Applications
Schmitt trigger
PPM
PWM
Linear Ramp generator
Precision Timing
Pulse Generation
Time Delay Generation
Sequential Timing
Used as a quad timer
10. Conclusion
Hence 555 IC timer can produce very accurate and stable time delays, from microseconds to hours. It can be used with supply voltage varying from 5 to 18 V. Timer can be used in monostable mode of operation or astable mode of operation. Its various applications include waveform generator, missing pulse detector, frequency divider, pulse width modulator, burglar alarm, FSK generator, ramp generator, pulse position modulator etc.
ICL7660 Monolithic CMOS Voltage ConvertersGeorgage Zim
ICL7660 and ICL7660A contain all the necessary circuitry to complete a negative voltage converter, with the exception of 2 external capacitors which may be inexpensive 10μF polarized electrolytic types. Please visit for more information http://www.intersil.com/en/products/power-management/isolated-power/charge-pumps/ICL7660.html
Vues du Zinc est le magazine des professionnels du zinc en France.
Venez découvrir dans ce magazine : des projets en zinc en Ile de France et Normandie, des produits adaptés à la couverture, un chantier test…
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2002 001
1. 2000-SERIES Data Sheet Ref. No :
SD-2002-001 sdtork ®
Electrical Actuator Technical Specifications Quotation Ref. No
Quotation Date
1. ITEM Single Phase Damper Electrical Actuator
2. MAKE sdtork
3 APPLICATION Damper Operation
4 ACTUATOR DETAILS (With standard Accessories)
4.1 Type 2000-SERIES
4.2 Model
4.3 Out Put motion. Linear
4.4 Output Force Actuating – Kg
4.5 Out put speed – mm/Sec
4.6 Stroke Length
4.7 Time of operation
4.8 Manual over-ride Provided Hand wheel with clutch.
4.9 Travel Limit Switches Provide: 2 Nos.
Type : 1NO+1NC, change over type contacts
4.9 Torque Limit Switches Not required as motor used is stall duty
4.10 Local Position Indicator Provided Continuous type
4.11 Class of Protection
4.12 Duty
4.13 Weight of the actuator
4.14 G. A. Drawing
4.15 Area of Operation
5 MOTOR DETAILS
5.1 Type Non blocking A.C. Synchronous motor
5.2 Supply 220 VAC 50 Hz 1 Phase
5.3 Duty Regulating
5.4 Insulation Class B
5.5 Rating
5 OPTIONAL ACCESSORIES
5.1 Feedback Out put : 100-235 Ohms Provided / Not Provided
Potentiometer
5.2 Additional Limit Qty : 2 nos. Provided / Not Provided
Switches Type : 1 NO + 1 NC, Change over contact,
Contact rating: 5 A, 230VAC
5.3 Two Wire Transmitter Type : Two wire, Actuator mounted Provided / Not Provided
Supply : 12-36 VDC, Out put : 4-20 m A
5.4 Remote Position Digital : 0-100 % Provided / Not Provided
indicator
5.5 Interface Card Input signal : 4-20 m A, Provided / Not Provided
Actuator Mounted Feed back : 100-235 Ohms,
5.6 Servo controller Input signal : 4-20 m A, Out put : 4-20 m A Provided / Not Provided
(Valve positioner) Feed back : 100-235 Ohms, supply 230 V
Panel Mounted AC, This will have auto calibration facility.
6 GENERAL POINTS
6.1 Inspection By Customer at our works
6.2 T. C.& Manuals 2 Sets with unit
6.3 Warranty 18 months from the date of supply or 12 months from the date of
installation which ever is earlier.
6.4 Packing Thermo cool Packing Housed in corrugated Box
SPECIAL NOTE :
For Sdtork Controls Pvt. Ltd.
