ABB ACS560 Quick Installation And Start-Up Manual page 9

Measuring the insulation resistance of the motor and motor
cable
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur. If you are not a qualified
electrical professional, do not do installation, commissioning or
maintenance work.
1. Follow the electrical safety precautions. See Electrical safety instructions in
the hardware manual.
2. Make sure that the motor cable is disconnected from the drive output terminals.
3. Measure the insulation resistance between each phase conductor and the
protective earth conductor. Use a measuring voltage of 1000 V DC. The
insulation resistance of an ABB motor must be more than 100 Mohm (reference
value at 25 °C [77 °F]). For the insulation resistance of other motors, refer to
the manufacturer's instructions.
Note: Moisture inside the motor reduces the insulation resistance. If you think
that there is moisture in the motor, dry the motor and do the measurement
again.
1000 V DC,
> 100 Mohm
EN - Quick installation and start-up guide 9
ohm
U1
U1-PE, V1-PE, W1-PE
M
V1
3~
W1
PE
EN
HI