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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
SD
PG(NG)
PP(NP)
Max. input pulse
frequency 1Mpps
Servo amplifier
Am26LS31 or equivalent
10m or less
Approx. 100
V
OH
: 2.5V
V
OL
: 0.5V
(Note)
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.
2) Input pulse condition
0.9
0.1
tc
tHL
tc
tLH
tF
tLH=tHL<0.1 s
tc>0.35 s
tF>3 s
PP PG
NP NG
(b) Open collector system
1) Interface
Servo amplifier
24VDC
OPC
PP, NP
DOCOM
SD
Approx. 1.2k
Max. input pulse
frequency 200kpps
2m or less
2) Input pulse condition
0.9
0.1
tc
tHL
tc
tLH
tF
tLH=tHL<0.2 s
tc>2 s
tF>3 s
PP
NP
Summary of Contents for MELSERVO MR-J3 A Series
Page 15: ...A 14 MEMO ...
Page 225: ...7 12 7 GENERAL GAIN ADJUSTMENT MEMO ...
Page 241: ...8 16 8 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 251: ...9 10 9 TROUBLESHOOTING MEMO ...
Page 263: ...10 12 10 OUTLINE DRAWINGS MEMO ...