Safety Instructions; Overview; General Safety Instructions - ABB FEN-01 User Manual

Safety instructions

Overview

This chapter states the general safety instructions that must be
followed when installing and operating the FEN-01 TTL Encoder
Interface.
In addition to the safety instructions given below, read the
complete safety instructions of the specific drive you are working
on.
These warnings are intended for all who work on the drive.
Ignoring the instructions can cause physical injury or death, or
damage the equipment.

General safety instructions

Warning! All electrical installation and maintenance work on the
drive should be carried out by qualified electricians only.
The drive and adjoining equipment must be properly earthed.
Do not attempt any work on a powered drive. After switching off
the mains, always allow the intermediate circuit capacitors 5
minutes to discharge before working on the frequency converter,
the motor or the motor cable. It is good practice to check (with a
voltage indicating instrument) that the drive is in fact discharged
before beginning work.
The motor cable terminals of the drive are at a dangerously high
voltage when mains power is applied, regardless of motor
operation.
There can be dangerous voltages inside the drive from external
control circuits even when the drive mains power is shut off.
Exercise appropriate care when working on the unit.
Safety instructions
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