Mitsubishi Electric MELSEC iQ-R Series Configuration Manual page 192

When the ERR contact of the power supply module is used
AC and DC power
Power supply
Transformer
Fuse
CPU module
SM52
A signal is
input when
SM403
the DC power
connection is
XM
established.
TM
MC1 N0 M10
N0
M10
Program
Start
switch
RA1 RA3
Stop
MC
switch
RA2
Output module
Ym
Yn
Power
ERR
supply
module
Output module
*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, a stop caused by a limit switch, or ERR contact OFF.
*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.
APPX
190
Appendix 8 General Safety Requirements
Transformer
Fuse
DC
power
Ym
(-) (+)
Yn
Fuse
Set a TM value.
TM
Start/Stop circuit
MC
RA2
Input module
Use of a voltage relay is recommended.
XM
Low battery alarm (Lamp or buzzer)
This relay turns on when the CPU
L
module starts running by SM403.
RA1
This relay turns off when the ERR
contact turns off (a stop error occurs).
RA3
MC MC
Power supplied to the output devices is
shut off when the stop switch is pressed.
MC2
MC1
MC1
MC2
Interlock circuits
*1
*2
*3
*4