671
APPENDICES
A
Appendix 9 General Safety Requirements
(1) System design circuit example (when not using ERR. terminal of power supply
module, or using Q00JCPU)
The power-on procedure is as follows:
For AC For AC/DC
1) Power on the programmable controller. 1) Power on the programmable controller.
2) Set CPU to RUN. 2) Set CPU to RUN.
3) Turn on the start switch. 3) When DC power is established, RA2 goes ON.
4) When the magnetic contactor (MC)
comes on, the output equipment is
powered and may be driven by the
program.
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.)
MC
RA1
RA2
XM
Ym
Yn
MC2
MC1
M10
NO
MC
MC
SM52
SM52
SM403
SM403
XM
TM
MC
MC2
MC1
Ym
Yn
MC
RA1
MC
MC
RA2
L
MC1
RA1
MC2
Ym
TM
MC1 NO M10
MC1
MC2
L
RA1
MC
Ym
Yn
(-)(+)
Yn
FOR AC
FOR AC/DC
Power supply
Power supply
Transformer
Fuse
CPU module
START
SW
STOP
SW
Input module
Output module
Output module
Low battery alarm
(Lamp or buzzer)
ON when run by
SM403
Power to output
equipment is turned
off when the STOP
signal is given.
interlocked with
RA1
(run monitor relay)
Input switched
when power
supply
established.
RUN/STOP circuit
In the case of an
emergency stop or a
stop caused by a
limit switch.
Interlock circuits
Transformer
Transformer
Fuse Fuse
Fuse
CPU module
DC
power
Set time for DC
power supply to
be established.
Voltage relay is
recommended
Low battery alarm
(Lamp or buzzer)
ON when run by
SM403
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.
START
SW
STOP
SW
Program
Program
Output module
Output module
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 .
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