Brake Resistor Assembly - ABB ACS880-104 Hardware Manual

146 Electrical installation
(reference value at 25 °C [77 °F]). For the insulation resistance of other motors, consult
the manufacturer's instructions.
Note:
Moisture inside the motor casing reduces the insulation resistance. If moisture is
suspected, dry the motor and repeat the measurement.
1000 V DC,
ohm
> 100 Mohm
￭

Brake resistor assembly

See section Checking the insulation of the brake resistor assembly (page
ohm
U1
M
V1
3~
W1
PE
U1-V1, U1-W1, V1-W1
U1-PE, V1-PE, W1-PE
332).