Mitsubishi Electric Q12DCCPU-V User Manual page 224

6
PREPARATORY PROCEDURES AND SETTING
(1) Circuit example for system design (when not using the ERR. contact of
FOR AC
Power
supply
Transformer
Fuse
C Controller module
User
program
START
SW
RA1
MC STOP
SW
Input module
Output module
Ym
Yn
Output module
MC
MC2
MC1
Figure 6.3 Circuit example for system design (when not using the ERR. contact of the power supply module)
The power-up procedure is as follows:
For AC
[1] Turn on the power.
[2] Set the C Controller module to "RUN".
[3] Turn on the start switch.
[4] When the magnetic contactor (MC) turns on, the output
equipment is driven by the user program.
6
- 6 6.2 Fail-Safe Circuit
the power supply module)
RUN/STOP circuit
Started when RA1
(control start output of
*1
C Controller module)
turns ON.
MC
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
stop caused by a
MC1
limit switch.
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 .
*1
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
For AC/DC
[1] Turn on the power.
[2] Set the C Controller module to "RUN".
[3] When DC power is applied, RA2 is turned on.
[4] When RA2 turns on, XM is turned on.
Upon 100% establishment of the DC input signal, processing is
started by the user program.
[5] Turn on the start switch.
[6] When the magnetic contact (MC) turns on, the output
equipment is driven by the user program.
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.
*2