Mitsubishi Electric MELSEC Q Series User Manual page 496

(1) Circuit example for system design (when not using the ERR. contact of the
power supply module)
FOR AC
Power
supply
Transformer
Fuse
C Controller module
START
SW
RA1
STOP
MC
SW
Output module
Ym
Yn
Output module
MC
494
RUN/STOP circuit
Started when RA1
(control start output of
User
*1
C Controller module)
program
turns ON.
MC
Input module
Low battery alarm
(Lamp or buzzer)
L
Turns ON at start of
C Controller module
RA1
user program.
Power to output
MC
equipment is turned
off when the STOP
signal is given.
In the case of an
emergency stop or a
MC2
stop caused by a
MC1
limit switch.
MC1
Interlock circuits
MC2
Provide external
interlock circuits for
conflicting operations,
such as forward rotation
and reverse rotation,
and for parts that could
damage the machine or
cause accidents .
Power
supply
FOR AC/DC
Trans- Trans-
former former
Fuse Fuse
C Controller module
User
*2
program
START
SW
RA1
MC
MC STOP
SW
RA2
XM
Output module
Ym
L
Yn
RA1
Output module
MC2
MC1
MC1
MC2
DC
power
(-) (+)
Fuse
RA2
Voltage relay is
recommended
Low battery alarm
(Lamp or buzzer)
Turns ON at start of
C Controller module
user program.
MC MC
Power to output
equipment is turned
off when the STOP
signal is given.
In the case of an
emergency stop or a
stop caused by a
limit switch.