Mitsubishi Electric Melsec-Q172DCPU User Manual page 122

2 SYSTEM CONFIGURATION
External pulse
input signal (Phase A)
External pulse
input signal (Phase B)
(Note): Only SOS function use
(c) Wiring example for external pulse input to safety signal module.
The wiring diagram for external pulse input signal and safety signal module
shows below.
Safety module performs the safety diagnostics of external pulse generator,
therefore you need to wire them so that external pulse generator is supplied
power by the safety signal module, and the generated pulse becomes input
signal of safety signal module.
External power supply
24VDC
Safety signal module
(Q173DSXY)
1B01
1B09
(Y0B)
1A18
(X12)
1A17
(X13)
1A01
2B01
2B09
(Y0B)
2A18
(X12)
2A17
(X13)
2A01
2 - 89
Motion CPU side
Power supply to the
external pulse
(Output at SLS/SOS
executing)
External pulse
input signal (Phase A)
External pulse
input signal (Phase B)
PLC CPU side
Power supply to the
external pulse
(Output at SOS
executing)
External pulse
input signal (Phase A)
External pulse
input signal (Phase B)