53
Rev. 1.1
2018/04
400-820-9661
M2DC Series Hardware Manual
4.9.5 Encoder Feedback Output
The M2DC series servo drive can output encoder A/B/Z phase as differential output signals through the
line driver. The output signal is 5V, A/B signals are 10000 pulse/rev, Z signal is 1 pulse/rev.
The host must use the line receiver to receive these signals. Use twisted-pair wires for signal transfer.
4.9.5.1 A/B/Z Connection Diagram
Host Controller
A+
Servo Drive
A-
B+
B-
Z+
Z-
AOUT+
AOUT-
BOUT+
BOUT-
ZOUT+
ZOUT-
FG
FG
21
22
48
49
23
24
DGND
25
50
DGND
NOTE: Please make sure the host controller and the servo drive are connected to a common
ground.
4.9.5.2 Z Phase Open Collector Output
On the M2 drives, encoder signal Z uses open collector output circuitry. Due to the narrow bandwidth of
encoder signal Z, please use high speed opto-coulper circuitry for the host receiver.
CZ
DGND
0VDC
24VDC
Servo Drive
19
15
