External I/O Signal Connection Example Using An External Safety Relay Unit - Mitsubishi Electric MR-J5 Series User Manual

External I/O signal connection example using an external safety
relay unit
This connection is for source interface. For the other I/O signals, refer to the following connection examples.
Page 28 For MR-J5-_G_
Page 30 For MR-J5-_A_
This connection example complies with the requirements of ISO/EN ISO 13849-1:2015 Category 3 PL d.
For details, refer to the safety relay module user's manual.
24 V
S2
Fuse
+24V
XS0
Safety relay
module
Power
MELSEC
supply
(QS90SR2S)
24G X0
COM0
S1 or
*1
EMG
0 V
S1: STO shut-off switch (STO switch)
S2: Start switch (STO release switch)
S3: ON switch S4: OFF switch
KM1: Magnetic contactor
K3: Safety relay EMG:
Emergency stop switch
*1 To enable "Emergency switching off" for the shut-off by the STO function of the servo amplifier, change S1 to EMG. The stop category at
this time is "0". If STO is turned off while the servo motor is rotating, [AL. 063 STO timing error] occurs.
K3
XS1 Z00 Z10 Z20
Control
circuit
X1 Z01 Z11 Z21
COM1
S4 EMG
S3
KM1
KM1
Servo amplifier
CN8
Control circuit
STO1
STO2
STOCOM
TOFB1
K3
TOFB2
TOFCOM
CN3
8 USING STO FUNCTION [G] [A]
8.3 Connection example
KM1
8
20
EM1
or
EM2
M
Servo motor
221