Mitsubishi Electric MR-J4-10A(-RJ) Instruction Manual page 148

3. SIGNALS AND WIRING
(b) Open-collector type
1) Interface
2) Input pulse condition
(4) Encoder output pulse DO-2
(a) Open-collector type
Interface
Maximum sink current: 35 mA
Servo amplifier
OP
LG
SD
24 V DC
2 m or less
(Note)
Note. Pulse train input interface is comprised of a photocoupler.
If a resistor is connected to the pulse train signal line, it may malfunction due to
reduction in current.
tc
0.9
PP
0.1
tc tLH
NP
3 - 65
Servo amplifier
Max. input pulse
frequency 200 kpulses/s
OPC
Approximately
1.2 kΩ
PP, NP
DOCOM
SD
tHL
tLH = tHL < 0.2 s
tc > 2 s
tF > 3 s
tF
Servo amplifier
OP
LG
SD
5 V DC to 24 V DC
Photocoupler