Mitsubishi Electric MR-J4-10B(-RJ) Instruction Manual page 448

13. USING STO FUNCTION
(b) When outputting two STO states by using one TOFB
Servo amplifier
TOFB1
TOFCOM
TOFB2
Note. If the voltage drop (maximum of 5.2 V) interferes with the relay operation, apply high
voltage (maximum of 26.4 V) from external source.
13 - 13
If polarity of diode is
reversed, servo amplifier
Load
will malfunction.
(Note)
24 V DC ± 10%
300 mA