Mitsubishi Electric M70V Series Connection Manual page 71

MITSUBISHI CNC
2 General Specifications
(13) LED
Name
3VON
5VON
PACKETNG
RIO1
12VON
DOCOM
46
Function At fault
DC3V input check Not lit
DC5V input check Not lit
RIO communication
Lit (Red)
status check
RIO communication
Not lit
status check
For manual pulse
Not lit
generator
DC24V input check
Not lit
(for source output)
Conditions
(1) Disconnection between control unit and operation panel I/O unit
(1) Disconnection between control unit and operation panel I/O unit
(2) Short circuit of manual pulse generator cable
(1) Partial disconnection between control unit and operation panel I/O unit
(2) Miswiring of extended I/O unit to RIO3
Short circuit of manual pulse generator cable
(1) Disconnection of 24V input
(2) Disconnection of protection fuse on the operation panel I/O unit
(Note) Sink output type does not have the LED for DOCOM.