Electrical Installation; Chapter Overview; Checking The Insulation Of The Drive - ABB DCS880 series Hardware Manual

Electrical installation

Chapter overview

This chapter describes the electrical installation procedure of the DCS880.
WARNING
A qualified electrician may only carry out the work described in this chapter. Follow
the Safety instructions
instructions can cause injury or death.
Make sure that the drive is disconnected from the mains (input power) during
installation. If the drive was already connected to the mains, wait for 5 min. after
disconnecting mains power.
Further information is available in the

Checking the insulation of the drive

Every converter has been tested for insulation between the main circuit and the
chassis (2500 V rms 50 Hz for 1 second) at the factory. Therefore, do not make any
voltage tolerance or insulation resistance tests (e.g. hi-pot or megger) on any part of
the converter. Check the insulation of the drive as follows.
WARNING
Check the insulation before connecting the drive to the mains. Make sure that the
drive is disconnected from the mains (input power).
1. Check that the motor cables are disconnected from the converter output terminals
C1, D1, F+ and F-.
2. Measure the insulation resistances of the motor cable and the motor between
each circuit (C1, D1) / (F+, F-) and the Protective Earth (PE) by using a
measuring voltage of 1 kV DC. The insulation resistance must be higher than
1 Mohm.
on the first pages of this manual. Ignoring the safety
C1, D1
Ohm
PE
SB_DCS_001_elektr-inst_a.ai
3ADW000462R0101 DCS880 Hardware Manual e a
Technical Guide.
M
F+, F-
Ohm
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Electrical installation