Mitsubishi Electric Melservo JE Series Instruction Manual page 270

13. USING STO FUNCTION
(2) Basic operation example
The switch status of STOA is input to SDI2A+ of MR-J3-D05, and then it will be input to STO1 and STO2
of the servo amplifier via SDO1A and SDO2A of MR-J3-D05.
The switch status of STOB is input to SDI2B+ of MR-J3-D05, and then it will be input to STO1 and STO2
of the servo amplifier via SDO1B and SDO2B of MR-J3-D05.
A-axis shutdown 1 and 2
B-axis shutdown 1 and 2
EM2 input
STO1, STO2
Servo amplifier
Servo motor speed
Energizing (close)
Shut-off (open)
Stop
Operation
Normal (close)
Shut-off (open)
0 r/min
Servo motor drivable
13 - 9
Shut off delay
STO shut-off
STO status