Mitsubishi Electric MELSERVO-J4 MR-J4 TM Instruction Manual page 401

13. USING STO FUNCTION
13.1.6 Maintenance
This servo amplifier has alarms and warnings for maintenance that supports the Mitsubishi drive safety
function. (Refer to chapter 8.)
13.2 STO I/O signal connector (CN8) and signal layouts
13.2.1 Signal layouts
POINT
The pin configurations of the connectors are as viewed from the cable connector
wiring section.
Servo amplifier
STO I/O signal connector
CN8
2 1
4 3
STO1
STOCOM
6 5
TOFB1 STO2
8 7
TOFB2
TOFCOM
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