PRE-INSTALLATION
2-5
Hardware
and Installation User Manual
Provide a means for removing power from the output if an emergency
condition occurs with the machine during operation. Do this by
disconnecting output power with a non-semiconductor switch or
hard-wired relay contact, not through the programmable control
system.
This type of switch is shown in Figure 2-2.
Output
Module
Contacts of
electromechanical relay C1
user–supplied
critical loads
which could
cause injury
loads which
could not
cause injury
Outputs from the
programmable controller
C1
C1
Emergency
stop
Reset
C1
Electromechanical
Relay
Guard
limit switch
C1
Figure 2-2 Emergency Stop Switch
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