General safety guidelines – Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual User Manual

Page 29

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Publication 1398-5.2 – PDF 1997

Safety

1-3

General Safety Guidelines

This section covers general safety guidelines for electronic devices.
Safety information specific to ULTRA 100 Series drives begins on
page 1-1.

Hazards which can be encountered in the use of this equipment are:

Electric Shock

Electric Fire

Mechanical

Stored Energy

There are no chemical or ionizing radiation hazards.

Electrical shock and fire hazards are avoided by using normal
installation procedures for electrical power equipment in an industrial
environment. Installation must be undertaken by suitably qualified
personnel. Note that this amplifier must be installed in an industrial
cabinet such that access is restricted to suitable qualified personnel.

Mechanical hazards are associated with potentially uncontrolled
movement of the motor shaft. If this imposes a risk in the machine,
then appropriate precautions must be made to electrically disconnect
the motor from the drive when personnel have access to moving parts
of the machine. Note also that the motor must be securely mounted at
all times.

Stored energy hazards are both electrical and mechanical.

1. Electrical hazards can be avoided by disconnecting the drive from

its power source and measuring the DC bus voltage to verify it has
reached a safe level or by waiting for the time indicated in the
warning on the front of the drive prior to removing the protective
covers or touching any connections.

2. Mechanical hazards require a risk analysis on the effects of stored

mechanical energy when the machine is running at speed, as well
as the potential for the conversion of electrical energy stored in the
drive being converted to mechanical energy. Electrical energy may
be stored in drive for the time indicated in the warning on the front
of the drive.

The following points should be observed for the safety of personnel:

Only qualified personnel familiar with the equipment are
permitted to install, operate and maintain the device.

System documentation must be available and observed at all
times.

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