46 Electrical installation
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 (PE) conductor. Use a measuring
voltage of 500 V DC. The insulation resistance of a motor must exceed 10 Mohm
(reference value at 25 °C or 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.
ohm
M
3~
U1
V1
W1 PE
500 V DC,
≥
10 Mohm
U1-V1, U1-W1, V1-W1
U1-PE, V1-PE, W1-PE
Summary of Contents for ACS320 series
Page 1: ...ABB drives User s manual ACS320 drives 0 5 to 30 hp ...
Page 4: ......
Page 18: ...18 Safety ...
Page 28: ...28 Operation principle and hardware description ...
Page 56: ...56 Electrical installation ...
Page 142: ...142 Program features Connection diagram example ACS320 xx xxxx x ...
Page 282: ...282 Actual signals and parameters ...
Page 358: ...358 Fieldbus control ...
Page 376: ...376 Fault tracing ...
Page 382: ...382 Maintenance and hardware diagnostics ...
Page 407: ...Dimension drawings 407 Frame size R2 NEMA 1 Frame size R2 IP20 NEMA 1 3AUA0000051097 A ...
Page 409: ...Dimension drawings 409 Frame size R3 NEMA 1 Frame size R3 IP20 NEMA 1 3AUA0000051118 A ...
Page 411: ...Dimension drawings 411 Frame size R4 NEMA 1 Frame size R4 IP20 NEMA 1 3AUA0000051133 A ...
Page 412: ...412 Dimension drawings ...
Page 413: ...Index Numerics A B C D E F G H I K L M N O P R S T ...