Product Modified Sticker; Checking The Cable And Motor Insulation; Figure 33. Product Modified Sticker - Eaton PowerXL DG1 Installation Manual

Chapter 6—Installation requirements

Product modified sticker

Figure 33. Product modified sticker

Checking the cable and motor insulation

1. Check the motor cable insulation as follows:
Disconnect the motor cable from terminals U, V and
•
W of the PowerXL Series drive and from the motor
Measure the insulation resistance of the motor
•
cable between each phase conductor as well as
between each phase conductor and the protective
ground conductor
The insulation resistance must be >1M ohm
•
2. Check the input power cable insulation as follows:
Disconnect the input power cable from terminals
•
L1/N, L2/N and L3 of the PowerXL Series drive and
from the utility line feeder
Measure the insulation resistance of the input power
•
cable between each phase conductor as well as
between each phase conductor and the protective
ground conductor
The insulation resistance must be >1M ohm
•
3. Check the motor insulation as follows:
Disconnect the motor cable from the motor and open
•
any bridging connections in the motor connection box
Measure the insulation resistance of each motor
•
winding. The measurement voltage must equal at
least the motor nominal voltage but not exceed
1000 V
The insulation resistance must be >1M ohm
•
50 POWERXL SERIES VFD MN040002EN—February 2018 www.eaton.com