Mitsubishi Electric Q26UD(E)HCPU User Manual page 673

(1) System design circuit example (when not using ERR. terminal of power supply
module, or using Q00JCPU)
FOR AC
Power supply
Transformer
Fuse
CPU module
SM52
SM403
Program
START
SW
RA1
STOP
MC
SW
Input module
Output module
Ym
Yn
Output module
MC
MC2
MC1
The power-on procedure is as follows:
For AC
1) Power on the programmable controller.
2) Set CPU to RUN.
3) Turn on the start switch.
4) When the magnetic contactor (MC)
comes on, the output equipment is
powered and may be driven by the
program.
Power supply
Input switched
when power
supply
established.
RUN/STOP circuit
Ym
interlocked with
RA1
(run monitor relay)
Yn
MC
START
SW
Low battery alarm
(Lamp or buzzer)
L
ON when run by
SM403
RA1
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
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 .
For AC/DC
1) Power on the programmable controller.
2) Set CPU to RUN.
3) When DC power is established, RA2 goes ON.
4) Timer (TM) times out after the DC power reaches 100%. (The TM set
value must be the period of time from when RA2 goes on to the
establishment of 100% DC voltage. Set this value to approximately 0.5
seconds.)
5) Turn on the start switch.
6) When the magnetic contactor (MC) comes on, the output equipment is
powered and may be driven by the program. (If a voltage relay is used
at RA2, no timer (TM) is required in the program.)
FOR AC/DC
Transformer Transformer
Fuse Fuse
CPU module
DC
SM52
power
Ym
(-)(+)
SM403
Yn
XM
TM
TM
MC1 NO M10
NO
M10
Program
RA1
MC
STOP
MC
SW
RA2
RA2
XM
Output module
Ym
L
Yn
RA1
Output module
MC
MC2
MC1
MC1
MC2
APPENDICES
Fuse
Set time for DC
power supply to
be established.
Voltage relay is
recommended
Low battery alarm
(Lamp or buzzer)
ON when run by
SM403
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.
671
A