Electrical Installation; What This Chapter Contains; Before Installation; Checking The Insulation Of The Assembly - ABB ACS800 Hardware Manual

Electrical installation

What this chapter contains

This chapter describes the electrical installation procedure of the drive.
WARNING! Only qualified electricians are allowed to carry out the work described in
this chapter. Follow the
the safety instructions can cause injury or death.
WARNING! During the installation procedure, the supply and inverter modules may
have to be temporarily extracted from the cabinet. The modules are heavy, and have
a high center of gravity. To minimize the danger of toppling over, keep the sheet
metal support supplied with the drive attached to the modules whenever
manoeuvring them outside the cabinet.

Before installation

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 (eg, hi-pot or megger) on any part of the
drive. When checking the insulation of the assembly, proceed in the following
manner:
WARNING! Check the insulation before connecting the drive to the supply. Make
sure that the drive is disconnected from the supply (input power).

Drive

Do not make any voltage tolerance or insulation resistance tests (eg, hi-pot or
megger) on any part of the drive as testing can damage the drive. Every drive has
been tested for insulation between the main circuit and the chassis at the factory.
Also, there are voltage-limiting circuits inside the drive which cut down the testing
voltage automatically.

Supply cable

Check the insulation of the supply (input) cable according to local regulations before
connecting to the drive.
Safety instructions on the first pages of this manual. Ignoring
75
Electrical installation