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3. SIGNALS AND WIRING
(b) Differential line driver system
1) Interface
Servo amplifier
Max.output current 35mA
LA
(LB,LZ)
LAR
(LBR,LZR)
LG
SD
150
Ω
Am26LS32 or equivalent
LA
(LB,LZ)
LAR
(LBR,LZR)
SD
100
Ω
High-speed photocoupler
Servo amplifier
2) Output pulse
Servo motor CCW rotation
LA
LAR
LB
LBR
LZ
LZR
T
π
/2
400
µ
s or more
LZ signal varies
±
3/8T on its leading edge.
Open
OP
Shorted
(5) Analog input
Input impedance
10 to 12k
Ω
Servo amplifier
+
15VDC
P15R
VC,etc.
LG
SD
Approx. 10k
Ω
Upper limit setting1k
Ω
2k
Ω