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3. SIGNALS AND WIRING
(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 (Encoder A / B / Z-phase pulse)
1) Interface
Max. output current: 35mA
Servo amplifier
LA
(LB, LZ)
LAR
(LBR, LZR)
SD
LG
150
Am26LS32 or equivalent
High-speed photocoupler
Servo amplifier
LAR
(LBR, LZR)
SD
100
LA
(LB, LZ)
2) Output pulse
Servo motor CCW rotation
LA
LAR
LB
LBR
LZ
LZR
T
/2
OP
Time cycle (T) is determined by the settings
of parameter No.PA15 and PC19.
400 s or longer
Driver
Driver
Driver
Driver