76 Electrical installation
Motor and motor cable
1. Check that the motor cable is disconnected from the drive output terminals U2, V2 and
W2.
2. Measure the insulation resistance between each phase conductor and the Protective
Earth conductor using a measuring voltage of 1000 V DC. The insulation resistance of
an ABB motor must exceed 100 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 will reduce the insulation resistance. If moisture is
suspected, dry the motor and repeat the measurement.
Checking the compatibility with IT (ungrounded) systems
EMC E201 is not suitable for use in an IT (ungrounded) system. If the drive is
equipped with E201, it can not be used in an IT (ungrounded) system.
WARNING!
If a drive with EMC E201 is installed on an IT system (an
ungrounded power system or a high resistance-grounded [over 30 ohm] power
system), the system will be connected to earth potential through the EMC filter
capacitors of the drive. This may cause danger, or damage the unit.
ohm
M
3~
U1
V1
W1PE
Summary of Contents for ACS880-07XT Series
Page 1: ...ABB industrial drives Hardware manual ACS880 07XT drives 400 to 1200 kW ...
Page 4: ......
Page 12: ...12 ...
Page 20: ...20 Safety instructions ...
Page 26: ...26 Introduction to the manual ...
Page 54: ...54 Mechanical installation ...
Page 89: ...Electrical installation 89 PE 11 8 4 9 11 ...
Page 94: ...94 Electrical installation ...
Page 112: ...112 Fault tracing ...
Page 123: ...Maintenance 123 5 6 7 ...
Page 124: ...124 Maintenance 8 10 9 ...
Page 126: ...126 Maintenance 6 5 4 ...
Page 127: ...Maintenance 127 9 8 7 ...
Page 128: ...128 Maintenance 12 11 10 ...
Page 149: ...Dimensions 149 Dimension drawing examples Frame 2 R11 R10 with brake chopper ...
Page 150: ...150 Dimensions Frame 2 R11 R10 without brake chopper ...
Page 153: ...Dimensions 153 Location of input terminals ACS880 07XT 12 pulse ...
Page 154: ...154 Dimensions Location of output terminals ACS880 07XT R10 with du dt ...
Page 155: ...Dimensions 155 Location of output terminals ACS880 07XT R10 without du dt ...
Page 156: ...156 Dimensions Location of output terminals ACS880 07XT R11 with du dt ...
Page 157: ...Dimensions 157 Location of output terminals ACS880 07XT R11 without du dt ...
Page 158: ...158 Dimensions Location of PE terminals ACS880 07XT ...
Page 159: ...Dimensions 159 Location of resistor terminals ACS880 07XT R10 ...
Page 160: ...160 Dimensions Location of resistor terminals ACS880 07XT R11 ...
Page 168: ...www abb com drives www abb com drivespartners 3ABD00043579 Rev C EN 2018 01 01 Contact us ...