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3. SIGNALS AND WIRING
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
(4) Encoder output pulse DO-2
Encoder Z-phase pulse will correspond to the differential line driver system and the open collector
system.
(a) Open collector system
Interface
Max. output current: 35mA
Photocoupler
Servo amplifier
OP
LG
SD
Servo amplifier
OP
LG
SD
5 to 24VDC
If the encoder Z-phase pulse is open collector method, it supports only to the sink (NPN) type
interface. It does not correspond to the source (PNP) type interface.
(b) Differential line driver system
1) Interface
Max. output current: 35mA
High-speed
photocoupler
Servo amplifier
Servo amplifier
LA
(LB, LZ)
LAR
(LBR, LZR)
SD
LG
150
LAR
(LBR, LZR)
SD
100
LA
(LB, LZ)
Am26LS32 or equivalent
Driver
Driver
Driver
Driver