Emergency Stop Switch - Siemens SIMATIC TI525 Hardware And Installation Manual

D
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.
Emergency
stop
Output
Module
Outputs from the
programmable controller
Figure 2-2 Emergency Stop Switch
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
PRE-INSTALLATION
Reset
Guard
limit switch
C1 Electromechanical
Contacts of
electromechanical relay C1
C1
C1
2-5
C1
Relay
user–supplied
critical loads
which could
cause injury
loads which
could not
cause injury
Hardware and Installation User Manual