26
Power Wiring Connections
WARNING
Contact with hazardous voltage could result in death or serious
injury.
•
Disconnect and lock out all power before installing or servicing equipment.
•
Make sure that all DC bus capacitor voltage has dissipated for several minutes after VFD
power is disconnected before working on wiring.
•
Connect the motor, the drive, metal plumbing, and all other metal near the motor or cable
to the power supply ground terminal using wire no smaller than motor cable wires.
•
Close any open conduit holes before finishing installation,
•
All wiring must comply with the National Electrical Code and local codes.
Ground Connections
NOTICE
Risk of damage to drive, or malfunction can occur.
•
Ensure that the system is properly grounded all the way to the service entrance panel. Im-
proper grounding may result in loss of voltage surge protection and interference filtering.
Follow these grounding requirements to ensure safety and performance
1.
Make sure a service entrance ground rod is properly installed and connected.
2. An input power ground wire from the supply panel must be connected to the drive.
3. A dedicated output ground wire from the drive must be connected to the motor. Motor and ground
wires must be bundled together.
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