3. SIGNALS AND WIRING
3.8.2 MR-J4-_B_-RJ/MR-J4-DU_B_-RJ
(1) Safety observation function control by input device
The following connection diagram shows an operation of the safety observation function using input
devices assigned to pins of the CN10A and CN10B connectors with a safety controller. By diagnosis of
input signals, the servo amplifier complies with safety level Category 4, PL e, SIL 3.
24 V
Safety controller MELSEC-WS series
CPU module WSO-CPU0
Safety I/O combined module WS0-XTIO
FLEXB
US+
A1
(24V)
24 V
FLEXB
US+
A2
(0V)
0 V
I1
I2
I3
I4
S1
X1
X2
0 V
A1
(24V)
Q1
Q2
Q3
A2
(0V)
MR-D30
CN10A
DO24VA
DO_A
CN10B
DO24VB
DO_B
CN10A
DICOMA
DI_A
CN10B
DICOMB
DI_B
3 - 19
MR-J4-_B_-RJ/
MR-J4-DU_B_-RJ
CN1A
Servo
SSCNET III/H
motor
CN1/2
Servo system
controller
Deceleration
X00
IO unit
command
QX_
COM
KM1: Magnetic contactor
S1: Safety switch
KM1