FATEK SD3 Series, Instruction Manual, Page: 141 / 396

49
4
Connection
4. Connection
SD3 Series Instruction Manual
5. Descriptions of CN1 Connector Signals
5. Descriptions of CN1 Connector Signals
EO
Connection to Encoder Output Circuit
Control Mode
P V T
Differential output of encoder signal (A-phase, B-phase, Z-phase) which has been processed
with pulse division ratio.
Be sure to connect a termination resistor to the receiver circuit of the host controller.
Approximately 220 Ω (1/4W or more)
Signal ground of the communication IC in the output circuit is connected to signal ground
inside the amplifier.
Connect signal ground of communications IC of the host controller to Pin No.42.
Be sure to use shielded twisted-pair cable as a noise countermeasure.
SG
Output A-phase
(RS-422)
Encoder signal output
SG
36
（OUT̲A）
37
（/OUT̲A）
38
（OUT̲B）
39
（/OUT̲B）
FG
40
（OUT̲B）
41
（/OUT̲B）
42
（SG）
Host Controller
220 Ω
220
Ω
220
Ω
Shield
Twisted-pair cable
Amplifier
Output B-phase
Output Z-phase
Encoder Z-phase is synchronized with A-phase and output.
A
B
Z
dif.
24
5
i/o
䐟
䐠
䐡
䐢
v
olt
v
olt