Allen-Bradley MicroLogix 1000 User Manual

Name: Allen-Bradley MicroLogix 1000
Brand: Allen-Bradley
Rating: 4 (1 reviews)

422 pages

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Installing

our Controller

1–5

Using Emergency-Stop Switches

When using emergency-stop switches, adhere to the following points:

• Do not program emergency-stop switches in the controller program. Any

emergency-stop switch should turn off all machine power by turning off the

master control relay.

•

Observe all applicable local codes concerning the placement and labeling of

emer

gency-stop switches.

• Install emer

gency-stop switches and the master control relay in your system.

Make certain that relay contacts have a suf

ficient rating for your application.

Emer

gency-stop switches must be easy to reach.

• In the following illustration, input and output circuits are shown with MCR

protection. However

, in most applications, only output circuits require MCR

protection.

Hardware

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