Mitsubishi Electric MELSEC iQ-R Series - System Design Circuit Examples

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APPX
Appendix 8 General Safety Requirements
System design circuit examples
When the ERR contact of the power supply module is not used
*1 Set a time required for DC power supply to be established.
*2 The programmable controller starts when RA1 (run monitor relay) turns on.
*3 The output devices are turned off at an emergency stop or a stop caused by a limit switch.
*4 Configure external interlock circuits for conflicting operations such as forward/reverse rotations and the parts where the incorrect output
may cause damage to the machines or accidents.
MC
RA1
RA2
XM
Ym
Yn
MC2
MC1
M10
N0
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 N0 M10
MC1
MC2
L
RA1
MC
Ym
Yn
(-) (+)
Yn
AC power AC and DC power
Low battery alarm
(Lamp or buzzer)
This relay turns on when the
CPU module starts running
by SM403.
Power supplied to the output
devices is shut off when the
stop switch is pressed.
*3
A signal is input when the
DC power connection is
established.
Start/Stop circuit
*2
Interlock circuits
*4
Use of a voltage relay is
recommended.
Low battery alarm
(Lamp or buzzer)
This relay turns on when the
CPU module starts running
by SM403.
Power supplied to the output
devices is shut off when the
stop switch is pressed.
*3
Power supply
Transformer Transformer
Fuse Fuse
Fuse
CPU module
Start
switch
Stop
switch
Program
Input module
Output module
Output module
Power supply
Transformer
Fuse
CPU module
Start
switch
Stop
switch
Input module
Output module
Output module
DC
power
Program
Set a TM value.
*1