Chapter 6 Installing Output Power Wiring; Installing Output Contactors (Optional); Installing Mechanical Motor Overload Protection (Optional); Installing Output Wiring From The Drive Output Terminals To The Motor - Reliance electric GV3000/SE Hardware Reference, Installation, And Troubleshooting Manual

6.1 Installing Output Contactors (Optional)

6.2 Installing Mechanical Motor Overload Protection
6.3 Installing Output Wiring from the Drive Output
Installing Output Power Wiring
Installing Output Power Wiring
This chapter provides instructions on wiring output contactors, motor overload
protection, and output wiring to the motor.
Output contactors provide a positive means of disconnecting the motor from the drive.
If the application requires the use of output contactors, contact Reliance Electric for
assistance.
(Optional)
To provide the motor with overload protection, local, national, and international codes
(e.g., NEC/CEC) require one of the following:
•
A motor thermostat be installed internal to the motor.
•
An electronic thermal motor overload relay, sized to protect the motor, be installed
between the motor and the drive's output terminals.
Note, however, that temperature measuring devices integral to the motor are the best
way to thermally protect AC motors under all conditions. Parameter P.040 must be
enabled to provide overload protection. Refer to the GV3000/SE Bookshelf Drive
Software Start-Up and Reference manual for more information.
In multiple-motor applications (V/Hz regulation only), each motor must have its own
user-supplied overload protection.
Terminals to the Motor
Use the following steps to connect the AC output power wiring from the drive to the
motor:
Step 1. Wire the three-phase AC output power motor leads by routing them
according to drive type. Refer to figures 4.1, 4.2, or 4.3. Tables 3.5 and 3.6
contain the recommended power wiring sizes.
Do not route more than three sets of motor leads through a single conduit.
This will minimize cross-talk that could reduce the effectiveness of noise
reduction methods. If more than three drive/motor connections per conduit
are required, shielded cable must be used. If possible, each conduit should
contain only one set of motor leads.
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