Mitsubishi Electric Melservo MR-J3-A Instruction Manual page 107

3. SIGNALS AND WIRING
(3) Pulse train input interface DI-2
Give a pulse train signal in the differential line driver system or open collector system.
(a) Differential line driver system
1) Interface
2) Input pulse condition
(b) Open collector system
1) Interface
2) Input pulse condition
10m or less
(Note)
Am26LS31 or equivalent
V : 2.5V
OH
V : 0.5V
OL
Note. Pulse train input interface is comprised of a photo coupler.
Therefore, it may be any malfunctions since the current is reduced when connect a
resistance to a pulse train signal line.
0.9
PP PG
0.1
tc
NP NG
24VDC
2m or less
tc
0.9
PP
0.1
tc tLH
NP
Servo amplifier
Max. input pulse
frequency 1Mpps
PP(NP)
Approx. 100
PG(NG)
SD
tHL
tc
tLH=tHL<0.1 s
tc>0.35 s
tF>3 s
tLH
tF
Servo amplifier
Max. input pulse
OPC
frequency 200kpps
Approx. 1.2k
PP, NP
DOCOM
SD
tHL
tLH=tHL<0.2 s
tc>2 s
tF>3 s
tF
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