NXS Form 63-2600, Users Manual, Technical Data - CONTROL ...

Cabling and connections 59(110)
6.1.7 Cable and motor insulation checks
1. Motor cable insulation checks
Disconnect the motor cable from terminals U, V and W of the frequency 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 >1MΩ.
2. Mains cable insulation checks
Disconnect the motor cable from terminals L1, L2 and L3 of the frequency drive and from the
mains. 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 >1MΩ.
3. Motor insulation checks
Disconnect the motor cable from the motor and open the 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 >1MΩ.
Automation and Control Solutions
Honeywell
Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MIN 55422 Scarborough, Ontario 63-2600-1
MIV 4Z9
www.honeywell.com
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