Installing
Y
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
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
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