Mitsubishi MELSEC-Q Series User Manual page 192

5
SETTINGS AND PROCEDURES BEFORE OPERATION
(1) System design circuit example (when not using ERR contact of power
For AC
Power supply
Transformer
Fuse
C Controller
module
User
program *1
START SW
RA1
MC
STOP SW
Output module
Ym
Yn
Output module
MC
MC2
MC1
5
- 6 5.2 Fail-safe Circuit
supply module)
RUN/STOP circuit
Started when RA1
(control start output
of C Controller
module) turns ON.
MC
Input module
Low battery alarm
(Lamp or buzzer)
L
Turns ON at start
of C Controller
RA1
module user
program.
MC
Power to output equipment
switched 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 as
necessary.
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 if no interlock
were used.
Figure 5.3 System design circuit example (when not using ERR contact)
Power supply
For AC/DC
Transformer Transformer
Fuse
C Controller
module
User
program *2
START SW
RA1
MC
MC
STOP SW
RA2
Output module
Ym
L
Yn
RA1
Output module
MC2
MC1
MC1
MC2
Fuse
DC
power
(-) (+)
Fuse
RA2
Voltage relay is
XM
recommended
Low battery alarm
(Lamp or buzzer)
Turns ON at start
of C Controller
module user
program.
MC Power to output
MC
equipment switched
OFF when the
STOP signal is
given.
In the case of an
emergency stop or
a stop caused by a
limit switch.