Hapter, Step 6 - install an emergency stop – Rockwell Automation VSM500 Integrated Drive/Motor User Manual

Page 29

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Step 6 - Install an Emergency Stop

6-1

C

HAPTER

6

Step 6 - Install an Emergency Stop

Depending upon the requirements of the application, the VSM500 unit can be set up
to provide either a coast-to-rest (default) or a ramp-to-rest (user option) operational
stop. The unit’s Function Loss input provides an additional coast-to-rest operational
stop.

In addition to the operational stop, the user must provide a hardwired emergency stop
external to the unit. The emergency stop circuit must contain only hardwired
electromechanical components. Operation of the emergency stop must not depend on
electronic logic (hardware or software) or on the communication of commands over an
electronic network or link.

6.1

Compliance with Machinery Safety Standard
EN 60204-1: 1992

This section applies to users who must comply with EN 60204-1: 1992, Electrical
equipment of industrial machines, part 9.2.5.4, Emergency Stop.

The VSM500 coast-to-rest stop is a category 0 operational stop. The ramp-to-rest
stop is a category 1 operational stop.

The required external hardwired emergency stop must be either a category 0 or 1
stop, depending on the user’s risk assessment of the associated machinery. In order
to fully comply with EN 60204-1: 1992, part 9.2.5.4, at least one of the system’s stop
methods must be a category 0 stop.

!

ATTENTION: The user must provide an external, hardwired emergency
stop circuit outside of the VSM500 unit circuitry. This circuit must disable
the system in case of improper operation. Uncontrolled machine
operation may result if this procedure is not followed. Failure to observe
this precaution could result in bodily injury.

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