Electrical Installation; What This Chapter Contains; Checking The Insulation Of The Assembly - ABB DCS800 Hardware Manual

Electrical installation

What this chapter contains

This chapter describes the electrical installation procedure of the drive.
WARNING! The work described in this chapter may only be carried out by a
qualified electrician. Follow the
Ignoring the safety 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.
Reference: Technical Guide - publ. no.: 3ADW000163

Checking the insulation of the assembly

Every drive 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
drive. Check the insulation of the assembly 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 cable is disconnected from the drive output terminals C1,
D1, F+ and F-.
2. Measure the insulation resistances of the motor cable and the motor between
each circuit (C1, D1) or (F+, F-) and the Protective Earth by using a measuring
voltage of 1 kV DC. The insulation resistance must be higher than 1 Mohm.
3ADW000194R0611 DCS800 Hardware Manual f us
Safety instructions
C1, D1
M
ohm
F+, F-
PE
ohm
on the first pages of this manual.
Electrical installation
55