Mitsubishi Electronics -QS90SR2SN-CC Mobility Aid User Manual


 
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1.2 About Safety Relay Module
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OVERVIEW
1.2 About Safety Relay Module
The safety relay module achieves basic safety functions for emergency stop only by
wiring, without programming.
It is safety check type module whose output does not turn ON until all conditions of the
safety input (normally closed contact), off check input (normally closed contact), and start-
up switch (normally open contact) are met.
Using the module helps to reduce the man-hour taken for configuring a safety check
system.
Figure 1.1 Safety relay module
Safety input
Start-up input
Safety input
Off check input
Start-up switch
Safety relay module
Such as
electromagnetic
switch
(Emergency stop switch, light curtain, etc.)