YASKAWA SGMAH

Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
5 - 22
5.2.3 Using the Encoder Signal Output
Encoder output signals divided inside the servo amplifier can be output externally.
These signals can be used to form a position control loop in the host controller.
The output circuit is for line-driver output. Connect each signal line according to the
following circuit diagram.
Note: Dividing means converting an input pulse train from the encoder mounted on the servomotor
according to the preset pulse density and outputting the converted pulse. The units are pulses per
revolution (PPR).
PG
Servo amplifier
CN2 CN1
(Servomotor)
Encoder
Host controller
Phase A
Phase B
Phase C
Serial data
/PBO
R = 220 to 470Ω
C = 0.1μF (Decoupling capacitor)
PBO
P
P
P represents twisted pair wires.
P
/PCO
PCO
/PAO
PAO
Phase A
Phase B
Phase C
CN1-33
CN1-34
CN1-35
CN1-36
CN1-19
CN1-20
CN1-1
Phase A
Phase B
Phase C
0V
Choke coil
Smoothing
capacitor
16
0V
+5V
8
9
10
7
C
+
-
+5V
11
0V
65
32
1
R
R
R
Servo amplifier Host controller
Line receiver
Shield
Connector shell