Motor And Motor Cable; It (Ungrounded) Systems; Installation Of Optional Emc Filter (+E202) - ABB ACS800-04 Hardware Manual

64 Electrical installation

Motor and motor cable


Check the insulation of the motor and motor cable as follows:
1. Check that the motor cable is connected to the motor, and 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, please consult
the manufacturer's instructions.
Note: Moisture in the motor casing reduces the insulation resistance. If moisture
is suspected, dry the motor and repeat the measurement.

IT (ungrounded) systems

A drive with no EMC filter or with EMC filter +E210 is suitable for IT (ungrounded
systems).
Note: You cannot disconnect an EMC filter from the drive.
WARNING! If a drive with EMC filter selection +E202 or +E200 is installed on
an IT system [an ungrounded power system or a high resistance-grounded
(over 30 ohms) power system], the system is connected to the earth
potential through the EMC filter capacitors of the drive. This can cause
danger or damage the unit.

Installation of optional EMC filter (+E202)

ARFI-10 EMC Filter Installation Guide
See
U1
V1
ohm
W1
[3AFE68317941 (English)].
M
3~
PE