Input Power Cable; Motor And Motor Cable; Brake Resistor Assembly R0 - ABB ACS560 Hardware Manual

62 Electrical installation
Also, there are voltage-limiting circuits inside the drive which cut down the testing voltage
automatically.
￭

Input power cable

Check the insulation of the input cable according to local regulations before connecting it
to the drive.
￭

Motor and motor cable

Check the insulation of the motor and motor cable as follows:
1. Check that the motor cable is disconnected from the drive output terminals T1/U, T2/V
and T3/W.
2. Measure the insulation resistance between the phase conductors and between each
phase conductor and the Protective Earth conductor. Use a measuring voltage of 1000
V DC. The insulation resistance of a motor must exceed 100 Mohm (reference value
at 25 °C or 77 °F). For the insulation resistance of other motors, please consult the
manufacturer's instructions.
Note:
Moisture inside the motor casing will reduce the insulation resistance. If moisture is
suspected, dry the motor and repeat the measurement.
1000 V DC,
ohm
> 100 Mohm
￭ Brake resistor assembly R0...R3
Check the insulation of the brake resistor assembly (if present) as follows:
1. Check that the resistor cable is connected to the resistor, and disconnected from the
drive output terminals R+ and R-.
2. At the drive end, connect the R+ and R- conductors of the resistor cable together.
Measure the insulation resistance between the combined conductors and the PE
conductor by using a measuring voltage of 1 kV DC. The insulation resistance must be
higher than 1 Mohm.
U1
M U1-V1, U1-W1, V1-W1
V1
3~
U1-PE, V1-PE, W1-PE
W1
PE