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DURApulse GS20X NEMA 4X AC Drive Quick-Start Guide
GS20X AC Drives Installation Instructions
NEMA 4X Sensorless Vector Control Variable Frequency
Micro-drive
• Please read this instruction sheet thoroughly before installation and retain for later
reference.
• To ensure the safety of operators and equipment, only qualified personnel familiar with
AC drives should install, wire, program, and operate the GS20X drive. Always read this
instruction sheet thoroughly before using the GS20X drive, especially the WARNING,
DANGER and CAUTION notes. If you have any questions, please contact AutomationDirect.
PLEASE READ PRIOR TO INSTALLATION FOR SAFETY
• The ground terminal of the GS20X drive must be grounded correctly. The grounding method
must comply with the laws of the country where the GS20X drive is to be installed.
• After power has been turned off, the capacitors in the GS20X drive may retain a charge
for several minutes. To prevent personal injury, visually verify that the "CHARGE" LED has
turned off. Then measure to confirm that the DC bus voltage level between terminals (+1)
and (-) is less than 25VDC before touching any terminals. (Capacitor discharge will take at
least 5 minutes for most GS20X models)
• The CMOS ICs on the internal circuit boards of the GS20X drive are sensitive to static
electricity. Please DO NOT touch the circuit boards with your bare hands before taking
anti-static measures. Never disassemble the internal components or circuits.
DANGER
• If wiring changes must be made, turn off power to the GS20X drive before making those
changes. Allow the internal DC bus capacitors in the GS20X drive sufficient time to discharge
prior to making changes in power or control wiring. Failure to do so may result in short
circuit and fire. To ensure personal safety, allow DC bus voltage to discharge to a safe level
before making wiring changes to the GS20X drive.
• DO NOT install the GS20X drive in locations subject to high temperature, direct sunlight, or
flammable materials.
• Never apply power to the output terminals U/T1, V/T2, W/T3 of the GS20X drive. If a
fault occurs during operation of the GS20X drive, refer to the fault code descriptions and
corrective actions to reset the fault before attempting to operate the GS20X drive.
• DO NOT use Hi-pot test for internal components. The semi-conductors in the GS20X drive
WARNING
are easily damaged by high voltage.
• Long motor lead lengths may result in reflective wave due to impedance mismatch between
the motor cable and the motor. Reflective wave may damage the insulation of the motor.
To avoid the possibility of reflective wave damage, use an inverter-rated motor with an
insulation rating of 1600 volts. A load reactor installed between the GS20X drive and motor
will help to mitigate reflective wave.
• Nominal supply voltage to the GS20X drive should be less than or equal to 120/240/480 volts
AC depending on GS20X model.
• Nominal supply current capacity should be less than or equal to 100kA for all GS20X models.
• The GS20X drive must be installed in a clean, well-ventilated and dry location, free from
corrosive gases or liquids.
CAUTION
• The GS20X drive must be stored within an ambient temperature range from –40°C to +85°C,
and relative humidity range of 0% to 90% without condensation.
• Do not apply AC power to the GS20X drive with the front cover removed. Following a fault of
the GS20X drive, wait 5 seconds before pressing the RESET key.
• To improve power factor, install a line reactor ahead of the GS20X drive. Do not install
power correction capacitors in the main AC supply circuit to the GS20X drive to prevent drive
faults due to over-current.
Minimum Wiring
• AC input power to R/L1, S/L2, T/L3 (for single-phase input, use two of the terminals) (For applicability of 1-phase
input power, please refer to Chapter 1 of the DURApulse GS20X AC Drives User Manual at
com.)
• Ground from the power supply
• Drive power to the motor (U, V, W on T1, T2, T3) (For use with 3-phase motors only!)
• Ground to the motor
• STO1 and STO2 (both must be wired through appropriate N.C. safety-rated contacts to DCM or the
factory-installed jumpers must be left in place)
With this minimal wiring, the drive can be operated via the keypad to test the motor and drive installation.
See the "Parameter Set Up"
(page
4) section to configure the drive for keypad operation.
Recommended Safety Wiring
We strongly recommend that customers use the STO safety feature.
The Safe Torque Off (STO) function turns off the power supplied to the motor through the hardware, so
that the motor cannot produce torque. This method of removing power from the motor is considered an
emergency stop, also known as "coast to stop."
To use this feature, disconnect the appropriate factory-installed jumpers and wire a safety relay, safety PLC, or
E-Stop pushbutton as shown. See Main Wiring (Power Circuit)
(page
GS20X_QSP_1ed 11/18/2019
Wiring Diagrams
RFI Jumper Removal
If the power distribution system supplying the GS20X AC drive is a floating (IT) or an
asymmetric ground system, the RFI jumper must be removed.
Removing the RFI jumper uncouples the internal RFI capacitor (filter capacitor)
between the GS20X drive frame and circuitry to avoid damaging those circuits and
(according to IEC 61800-3) to reduce ground leakage current.
GS20X Frame A through C
Main Wiring (Power Circuit)
For main (power) wiring terminal specifications, Please refer to "Specifications for Wiring Terminals –
Main-Circuit Terminals"
GS20X all Frames
*(Note that 1-phase drives do not have a T/L3 terminal)
Input: one-phase / three-phase* power
AutomationDirect.
Circuit Breaker or Fuse
R/L1
S/L2
T/L3*
It is recommended that
you install a protective
circuit at R1C – R1 to
protect the system from
damage.
When a fault occurs, the MC contact switches
to ON to shut off the power and protect the
power system.
R1C and R1 are the relay output terminals.
1) for wiring the GS20X.
Note: Rotate down
(page
2).
DC reactor (optional)
Brake resistor (optional)
Jumper
MC
R/L1
U/T1
S/L2
V/T2
T/L3*
W/T3
R1C
MC
R1
ON
OFF
MC
GS20X Control Terminal Wiring
+24 V
+24 V
FWD/STOP
DI1/FWD
REV/STOP
DI2/REV
Multi-step speed 1
DI3
Multi-step speed 2
DI4
Default
Multi-step speed 3
DI5
Multi-step speed 4
DI6
N/A
DI7
Digital Signal Common
DCM
NOT E
*DI7 can input 33 kHz pulses.
*Do NOT apply the mains voltage directly to
external terminals.
Default:
NPN (SINK) Mode
Please refer to the wiring of NPN mode and PNP mode.
N OT E
*
1:
It is a short circuiting jumper installed between
+24 V, S1 and S2 short when GS20 leaves the factory.
Remove this short circuiting jumper before using the
safety function while wiring.
*
2: The +24 V is for STO only, and cannot be used for any
other purpose.
E STOP
+24 VDC
SCM
Safety PLC
* 1
+24 V
STO1
STO2
+10 VDC / 20 mA
+ 10 V
0 – 10 VDC
3
5KΩ
AI1
2
-10 VDC – 10 VDC
1
+
0 – 20 mA / 4 – 20 mA
AI2
0 – 10 VDC
Analog Signal common
ACM
Main circuit terminals
Control terminals
Shielded leads & Cable
Specifications for Wiring Terminals – Control Circuit
GS20X-xxxx All Models; All Frame Sizes
Terminal
Wire Gauge
24–18 AWG
Control
[0.21–0.82 mm
24–16 AWG
Relay
[0.21–1.31 mm
Motor
3~
DURApulse GS20X AC Drive Quick-Start Guide – 1st Ed 11/18/2019
R1O
Multi-function relay output terminals
250 VAC / 3 A (N.O.)
R1C
250 VAC / 3 A (N.C.)
250 VAC / 1.2 A (N.O)
R1
Estimate at COS (0.4)
DO
Multi-function output
frequency terminals
30 VDC / 30 mA 33 kHz
DCM
N
P
P
P
N
N
NPN
P
P
N
Multi-function output
DO1
terminal 48 VDC / 50 mA
Multi-function output
DO2
terminal 48 VDC / 50 mA
Multi-function output
DOC
common terminal (photocoupler)
Analog Multi-function output
AO1
terminal 0 – 10 VDC /
0 – 20 mA / 4 – 20 mA
Analog Signal common
V
V
0
0
- 1
- 1
*
2
0
0
AFM
AO1
8
1
SGND
Modbus RS-485
SG+
A
A
A
A
m
m
m
m
0
0
0
0
- 2
- 2
- 2
- 2
0
0
4
4
0 – 20 mA
4 – 20 mA
Communication card/
Option Slot
AI2
ACI
DC 24V external power supply card
USB Port
Torque
n/a (spring terminals)
2
]
5kg·cm
2
]
[4.3 lb·in]
USB
AO1
AI2
DATAMATRIX
Safety function
32637012
RELAY
RS485
Port
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