Mitsubishi A2USCPU(S1), User Manual

Page: 126 / 272

8 - 3
LOADING AND INSTALLATION 8.
(1) System design circuit example
The procedures used to switch on the power supply are indicated below.
AC system AC/DC system
AC system AC/DC system
1) Switch the power supply ON.
2) Set the CPU module to RUN.
3) Switch the start switch ON.
4) The output equipments are driven in accordance with
the program when the magnetic contactor (MC) comes
ON.
1) Switch the power supply ON.
2) Set the CPU module to RUN.
3) Switch RA2 ON when the DC power supply starts.
4) Set the timer (TM) to "ON" upon 100% establishment of DC power
supply.
(Set value for TM shall be the period from RA2 turned "ON" to 100%
establishment of DC power supply. Make this set value 0.5 seconds.)
5) Switch the start switch ON.
6) The output equipments are driven in accordance with the program
when the magnetic contactor (MC) comes ON.
(When a voltage relay is used for RA2, the timer in the program (TM) is
not necessary.)
Switches the power
supply to output devices
OFF when the system
stops:
At emergency stops
at stops on reaching a
limit
Power supply
Power supply
Switches the power
supply to output
devices OFF when
the system stops:
Output for warning
(lamp or buzzer)
Turned ON in RUN
status by M9039
The setting for TM
is the time taken
to establish the
DC input signal.
Output for warning
(lamp or buzzer)
Turned ON in RUN
status by M9039
Fuse
Transformer
Fuse
Transformer
CPU module
M9006
M9039
Ym
Y
n
Start/stop circuit
Can be started
by turning ON of
RA1, which is the
programmable
controller's RUN
output.
DC power supply
established signal
input
CPU module
M9006
M9039
XM
Ym
Yn
TM
DC power
supply
( - )(+)
Fuse
TM
M10 N 0
Program
Start
switch
MC
MC1 N0 M10
XM
RA2
Ym
Yn
Output unit
MC1
MC2
MC1
MC2
L
RA1
MC MC
MC
RA1
Start
switch
MC
Stop
switch
Input unit
Output unit
Ym
Y n
MC
MC
L
RA1
MC2
MC1
MC 1
MC 2
RA1
MC
RA2
Output unit
Voltage relay
recommended
Output unit
Stop
switch
At emergency stops
at stops on reaching
a limit
Input unit
Program
Y1
M9084
XM
RA2
XM
Y1
RA2
Interlock circuit
Constructs external
interlock circuits for
opposing operations such
as forward and reverse
rotation, and parts that
could cause machine
damage or accidents.
TM
M9084