GH DRIVER
Signal
Description
Signal standard
PV1
Encoder power supply DC5V
DC5V/200mA
G1
Encoder power ground 0V
A+
A phase PULSE same-phase input (+)
Line drive mode
RS422 standard
A-
A phase PULSE reverse -phase input (-)
B+
B phase PULSE same-phase input (+)
B-
B phase PULSE reverse -phase input (-)
Z+
Z phase PULSE same-phase input (+)
Z-
Z phase PULSE reverse-phase input (-)
T1
Motor thermal protection input terminal
NC/NO
●
It’s prohibited to connect the signal line and OV reversely. The signal line is likely to be burned, and
reverse operation may be caused for bipolar.
●
It’s prohibited to connect high-voltage to analog signal terminal. The driver may be burned.
Forbid
Connection of the encoder interface
A group of encoder input interface T5 and encoder input interface T4 are provided on main board of GH series AC servo driver.
Please see Table 2-14 and Table 2-15 for interface definition.
Table 2-14 Encoder input interface T5
Table 2-15 Encoder output interface T4
Signal
Description
Signal standard
PV2
E n c o d e r p o w e r s u p p l y
DC5V
Or external sensor
power supply
DC5V/200mA
Note: the connection is not required
when used as speed/position feedback
of the CNC system
G2
Encoder power ground 0V
OA+
A phase PULSE same-phase input (+)
Line drive mode
RS422 standard
OA-
A phase PULSE reverse-phase input (-)
OB+
B phase PULSE same-phase input (+)
OB-
B phase PULSE reverse-phase input (-)
OZ+
Z phase PULSE same-phase input (+)
OZ-
Z phase PULSE reverse-phase input (-)
SA+
Pulse/encoder A-phase input (+)
Line drive mode
RS422 standard
SA-
Pulse/encoder A-phase input (-)
PB+
Pulse/encoder B-phase input (+)
PB-
Pulse/encoder B-phase input (-)
DZ+
Pulse/encoder Z-phase input (+)
DZ-
Pulse/encoder Z-phase input (-)
2-
20
