Chapter1 Overview; About Safety Relay Module - Mitsubishi Electric MELSEC Q Series User Manual

1
OVERVIEW
CHAPTER1
This manual explains specifications, handling, and wiring methods of the safety relay
module.
1.1

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.
Safety input
Start-up input
OVERVIEW
Safety input
(Emergency stop switch, light curtain, etc.)
Off check input
Start-up switch
Figure 1.1 Safety relay module
Such as
electromagnetic
switch
Safety relay module
1.1 About Safety Relay Module
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