The document details the features and specifications for a variable frequency drive (VFD) with horsepower ratings from 0.25 to 5, offering a built-in LED display and keypad for user convenience. It provides detailed electrical specifications, mounting options, and advanced start-up parameters while emphasizing its competitive position in the low horsepower market segment. The product supports various electrical configurations and protection features, ensuring reliable performance and compliance with international standards.

1. : Overview
• V/Hz operation
• Horsepower Ratings: 0.25 to 5
• Built-in LED Display & Keypad
• No need to add a separate keypad
• Manual Speed Potentiometer
• Built-in dynamic braking circuit
• Select separate resistor for braking
• Finger-safe IP20 enclosure is standard.
• Can be easily modified to accommodate
NEMA 1 applications with a kit addition. The
kit allows for a conduit connection.

2. : Drive Ratings
Voltage Ratings:
• 100 to 120 V AC Input:
• 1-phase input
• 3-phase, 0 to 230 V output
• 200 to 240 V AC Input:
• 1- or 3-phase input
• 0 to 230 V output
• 380 to 480 V AC:
• 3-phase input
• 0 to 480 V output

3. : Dimensions mm (inches)
Frame A B  C D E  F G
Shipping
Weight
A 80
(3.15)
185
(7.28)
136
(5.35)
67
(2.64)
152
(5.98)
59.3
(2.33)
140
(5.51)
1.4 kg
(3.1 lbs)
B 100
(3.94)
213
(8.39)
136
(5.35)
87
(3.43)
180
(7.09)
87.4
(3.44)
168
(6.61)
2.2 kg
(4.9 lbs)
¹ Height dimension includes optional NEMA 1 / IP30 kit
² Height dimensions without optional NEMA 1 / IP30 kit
Bottom View w/o NEMA 1 / IP30 Kit

4. •Overload Protection:
• 150% current for one minute
• 200% current overload for 3 seconds
•Carrier Frequency: 2 to 16kHz (Generally the higher the setting
the quieter the motor)
•Output Frequency: 0 to 240 Hz
•Power Dip Ride-Through: minimum 500 milliseconds w/o Fault
•Protection: Under-voltage, Over-voltage, Motor-overload, Over-
current, Ground-Fault & Drive Over-temperature
•Braking: Internal Dynamic Brake IGBT
: Electrical Specifications

5. : Global Design
Single Phase, 230Vac Units available with
optional integral filter for CE compliance
IGBT Module
•
• UL Listed for USA
• cUL Listed for Canada
•
• C-Tick for Australia
•
• CE Marked for Europe
• Input Mains Filter Option for
European EMC Directive
Compliance

6. : Mounting Flexibility
• Compact
Dimensions
minimizes required
panel space
• Keypad & Local
Speed Pot allow
operation Out-of-
the-Box
• Screw or DIN Rail
Mount with Zero
Stacking capability
• Optional NEMA 1
Kit allows conduit
connection
Nema 1 (IP30 ) kit
• Field installed
option for 40°C
ambient
Standard IP20
• DIN rail or panel
mounting for 50°C
ambient
• Zero Stacking up
to 40°C ambient

7. : Control Wiring
RS485
Dedicated
inputs for
start, stop
and reverse
operation
provide
simplicity
2 programmable
inputs provide
additional
control flexibility
DIP switch
selection for
24Vdc sink or
source control
provides
flexibility

8. 4 Status
LED’s
indicate
modes as
well as
operation
Display LED’s identify operation and
direction, as well as unit values.
: Startup is Fast & Simple
• Control keys on the keypad
are active Out-of-the-Box for
immediate operation
• 10 most common parameters
categorized in the “ Basic
Parameter Group ” to shorten
& simplify startup
• P031 Motor Nameplate Voltage
• P032 Motor Nameplate Current
• P033 Motor Overload Current
• P034 Minimum Frequency
• P035 Maximum Frequency
• P036 Start Source
• P037 Stop Mode
• P038 Speed Reference
• P039 Accel Time 1
• P040 Decel Time 1

9. Start Input: (Setup P036)
• Pushbutton on front keypad
• Terminal 02 Hardwired Input
• 2-wire or 3-wire control logic
• 2-wire includes 10msec response to
Start input
Stop Input: (Setup P037)
• Pushbutton on front keypad
• Terminal 01 Hardwired Input
• Coast to Rest
• Ramp to Rest
• DC Injection Braking
Speed Reference: (Setup P038)
• Drive potentiometer
• Digital Speed setting from keypad
• 0 to 10V Analog
• 4 to 20 mA
• Preset Speed (4 set-points)
: Key Control Parameters

10. Out-of-the-Box Performance
• Good Low Speed Torque
• Good Constant Torque
• Good Constant HP performance
• Good torque generation, with
• 150% for one minute overload rating
Package with a Wide Range of Reliance Electric Motors
• XE
• V*S Master
• RPM-AC
: Performance

11. V*S Utilities
• Windows Explorer look and feel
• Left side tree view
• Right side parameter list
• HTML help
• Parameter Upload / Download
• Configure parameter settings
• Monitor I/O activity
• Compare files
• Can copy parameter files to
multiple MD60 drives for ease of
start-up
: PC Configuration
Common Configuration
Software as used with
SP600 AC Drives.

12. • Remote NEMA 4 keypad
• Copy-Cat keypad
• Dynamic Brake resistor Kit
• Use existing Reliance
DB resistors today
• 3HP, 230V 1-phase and 3-
phase (C frame)
: Under Development

13. : Product Positioning
P
e
r
f
o
r
m
a
n
c
e
Power rating (HP)
0.25 0.5 3.0 5.0
SP120
SP600: SVC, Flexibility, Feature Set
HP Range - 1/2 to 50HP
MD60 V/Hz
MD60 w/ SVC (Early 2003)
50HP
10HP
Adding Versatility:
 Dynamic Braking
 16kHz switching
 PC Software
 NEMA 1 Kit
SP200

14. : “The Right Choice”
• MD60 provides a product line
extension from SP600
• It accommodates customers that
only desire V/Hz performance in a
simple package from 0.25 to 5 HP.
• MD60 replaces to SP120 & SP200
to simplify our product line.
• Easier to do business with RE
• Minimizes inventory at all levels
• MD60 is a more competitive
product in the 0.25 to 5 HP range.
A market segment where
customers base their buying
decisions heavily on price.

15. MD60 Appendix Slides
These are for reference only when technical
details are required by the customer.

16. • Ambient temperature
• -10 to + 50° C IP20
• -10 to + 40° C w/ NEMA 1 kit
• Relative Humidity:
• 0 to 95% non-condensing
• Vibration spec(operating):
• 1G peak, 5 to 2000 Hz
• Shock spec (operating):
• 15G peak, 11msec duration
• Altitude:
• 1000m (3300 ft) w/o derating
: Environmental Specs

17. •Rated output power
•1/4 to 1 HP (115 V input)
•1/4 to 5 HP (230 V input)
•1/2 to 5 HP (460 V input)
•150% current overload for one
minute
• 200% current overload for 3
seconds
•Efficiency: 97.5% (typical)
•Carrier Frequency: 2 to 16kHz
•Output Frequency: 0 to 240
•Internal Dynamic Brake IGBT
• Digital Input Accuracy: +/-0.05%
of set output frequency
• Analog Input Accuracy: +/-0.5%
of Maximum Output Frequency
• Relay Output: Form C Contact
• 3A resistive at 30VDC, 0.5A
inductive at 30VDC
• Power Dip minimum ride through
of 500 milliseconds w/o Fault
• Under-voltage, Over-voltage,
Motor-overload, Over-current,
Ground-Fault & Drive Over-
temperature protection
: Electrical Specifications

18. • Digital Input Configuration
• Input terminals 5 and 6 are
configurable, allows for jog,
preset speed selection,
accel/decel 2 selection, local
keypad selection
• Relay Output Selection
• Preset Frequencies (4 Presets)
• Jog Setup
• DC Braking
• Dynamic Braking Setup
•V/Hz Curve Selection
• Start Boost setting
• select VT/CT
•S-Curve
• Linear or S-Curve accel/decel
•Adjustable Current Limit
•Auto Restart Setup
• Set retries and Delay
•Start at Power Up Selection
•Flying Start Enable
: Advanced Start-up Parameters

19. • 2 or 3 wire control accommodates either maintained or momentary start
methods.
• Automatic torque boost provides robust out of the box torque
performance reducing the need for manual adjustments.
• Carrier frequency adjustment provides optimization for low audible motor
noise (2.0 - 16 kHz)
• Motor overload current to match motor full load amps (FLA).
• Primary acceleration and deceleration rates provide smooth, energy
saving starts
• Minimum and maximum speed limits prevent known extremes that can
damage equipment.
• Linear or S-curve acceleration and deceleration modes.
• Monitor 19 separate Display values
: Adjustable Features

20. Out-of-the-Box Performance
• Good Low Speed Torque
• Good Constant Torque
• Good Constant HP performance
• Good torque generation, with
• 150% for one minute overload
rating
• Adjustable V/Hz curve
• Adjust Start Boost for improved
starting torque
• +/-2% Speed Regulation
• 40:1 Operating Speed Range
• 10:1 Constant Torque production
: Performance

21. • Short cable distance filter meets EN55011
• Class A to 5 meters
• Class B to 1 meter
• Further testing will be performed for actual
results
• Long cable distance filter meets EN55011
• Class A to 100 meters
• Class B to 25 meters
: EMC Filters for CE Compliance
External filters are available for all 3-
phase as well as 115V 1-phase ratings.

22. : Migration from SP120 & SP200
SP120 SP200 MD60
Horsepower Range 0.25 - 5.0 0. 5 - 2.0 0.25 - 5.0
Enclosure IP20 IP20 IP20 (NEMA 1 Option)
Mounting Screw Mount Screw Mount & DIN Rail Screw Mount & DIN Rail
Stacking 30 mm spacing 25 mm spacing Zero
Dynamic Braking NO NO YES
PC Software NO NO YES
Remote OIM NO YES YES (future)
Digital Inputs Qty 5; 24Vdc Qty 4; 24Vdc Qty 6; 24Vdc
Analog Inputs Qty 2; 0-10V & 4-20mA Qty 1 or 2 (model specific) Qty 2; 0-10V & 4-20mA
Digital Outpus Qty 2 Digital & 1 Relay Qty 1 Form C Relay
(1 NO / 1 NC)
Qty 1 Form C Relay
(1 NO / 1 NC)
Comm Port RS 485 None RS 485

23. : Comparison to SP600
SP600 MD60
Horsepower Range 0. 5 - 50 0.25 - 5.0
Enclosure NEMA 1 IP20 w/ NEMA 1 Kit Option
Mounting Wall or Flange Mount Screw Mount & DIN Rail
Control Type V/Hz & Sensorless Vector V/Hz
Dynamic Braking YES; Heatsink Mount Resistors YES; Remote Mount Resistors
PC Software YES; V*S Utilities YES; V*S Utilities
Remote OIM YES YES (future)
Digital Inputs Qty 6; 24Vdc Qty 6; 24Vdc
Analog Inputs Qty 1 or 2 (model specific) Qty 2; 0-10V & 4-20mA
Digital Outpus Qty 1 Form C Relay (1 NO / 1 NC) Qty 1 Form C Relay (1 NO / 1 NC)
Comm Port DPI RS 485