Page 2–18
DuRApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 2: Installation and Wiring
14)
Do not monitor the signals on the circuit board while the GS4 AC drive is in operation�
15)
GS4 series AC drives cannot be used with single-phase motors�
16)
Route the power and control wires separately, or at 90 degree angle to each other�
17)
Ground both ends of the shield wire or conduit for the power wiring�
a) If using a “VFD cable,” follow the manufacturer’s recommendation for grounding the cable
shield�
b) If using conduit, bond and ground conduit according to applicable electrical codes�
18)
If a filter is required for reducing EMI (Electro Magnetic Interference), install it as close as
possible to the GS4 AC drive� EMI can also be reduced by lowering the Carrier Frequency�
Please refer to the “Applied EMI/RFI Techniques” white paper at support�automationdirect�com�
19)
If the GS4 AC drive is installed in a place where a load reactor is needed, install the reactor
close to the T1, T2, and T3 side of GS4 AC drive� Do not use a Capacitor, L-C Filter (Inductance-
Capacitance), or R-C Filter (Resistance-Capacitance)�
20)
When using a GFCI (Ground Fault Circuit Interrupt), select current sensor with sensitivity of
200mA or higher, and not less than 0�1-second operation time to avoid nuisance tripping�
main poWer Terminals
•
Do not supply GS4 460VAC models with single-phase power� R/L1, S/L2, and T/L3 have no
phase-sequence requirement; they can be wired in any order�
•
Do NOT start/stop the GS4 AC drive by turning input power ON/OFF� Start/stop the GS4 AC drive
using RUN/STOP commands via control terminals or the keypad� If you must start/stop the GS4
AC drive by turning power ON/OFF, it is recommended to do so only ONCE per hour�
ouTpuT Terminals for main CirCuiT
•
Do not connect phase-compensation, L-C (Inductance-Capacitance) , or R-C (Resistance
Capacitance) capacitors to the output terminals U/T1, V/T2, W/T3 of the GS4 AC drive�
•
DO NOT connect phase-compensation capacitors or surge absorbers to the output terminals of
the GS4 AC drive�
•
Use a well-insulated motor suitable for inverter operation�
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