Instruction manual

3 - 7
3 DESIGN
(b) System design circuit example(when using ERR terminal of
power supply module)
Output module
Output module
Interlock circuits as
necessary. Provide
external interlock
circuits for conflicting
operations, such as
forward rotation and
reverse rotation,
and for parts that could
damage the machine or
cause accident if no
interlock were used.
MC
RA1
Output by ERR contact OFF
Power OFF of equipment
RA3
M10
Program
CPU module
Transformer
Fuse
Power supply
SM52
SM403
XM
TM
Input switched when
power supply established
OFF at ERR contact OFF
(stop error occurrence)
Low battery alarm
(Lamp or buzzer)
Voltage relay is
recommended.
Set time for DC power
supply to be established.
FOR AC/DC
(-)
Fuse
STOP SW
START SW
In the case of an
emergency stop or a
stop caused by a limit
switch.
(+)
RUN/STOP circuit
interlocked with RA1
(run monitor relay)
Yn
Ym
TM
MC1 NO M10
MC
RA2
RA2
L
Yn
MC
Ym
RA1
MC1
MC2
MC1
MC
RA3
Transformer
Fuse
DC power
NO
MC2
XM
ERR
The power-ON procedure is as follows:
For AC/DC
1) Switch power ON.
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 should 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.)