User`s manual

3 - 7
3 DESIGN
(b) System design circuit example(when using ERR terminal of
power supply 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
RA2
L
Ym
MC2
MC1
MC1
RA3
MC2
MC
MC1 N0 M10
ERR
RA1
Yn
RUN/STOP circuit
Output by ERR contact OFF
Power OFF of equipment
RA3
MC
XM
M10
Program
CPU module
Transformer
Fuse
Power supply
Ym
SM52
SM403
TM
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
(-)
( )
Yn
DC power
RA2
Transformer
Fuse
Fuse
STOP SW
START SW
output module
output module
Power supply module
interlocked with RA1
(run monitor relay)
In the case of an
emergency stop or a
stop caused by a limit
switch.
MC
+
N0
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.)