3-24
3-1 Servo Drive Specifications
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
3
Specifications
Connection of External Encoder Input Signal and Processing of External Signals
External Encoder Input Signals List
External encoder I/O (CN4)
*1 Connect external encoder signals to the serial interface (
EXS/
EXS) or 90
phase difference input
according to the encoder type.
Phase A
Photocoupler input
+
EXA
+
EXS
E0V
E5V
5 V
−
EXS
−
EXA
5
1
2
3
4
6
4.7 k
Ω
1.0 k
Ω
Phase B
Photocoupler input
+
EXB
−
EXB
7
8
4.7 k
Ω
1.0 k
Ω
Phase Z
Photocoupler input
+
EXZ
−
EXZ
9
10
4.7 k
Ω
1.0 k
Ω
Shell
FG
FG
GND
External encoder power supply output
52 V
±
5%
250 mA max
Serial number
Pin
number
Symbol
Name
Function and interface
1
E5V
External encoder power
supply output
External encoder power supply 5.2 VDC
5%, 250
mA max.
If the above capacity is to be exceeded, provide a
separate power supply.
2
E0V
3
EXS
External encoder signal
Serial interface
This is an external encoder serial bi-directional
signal.
*1
(Conforming to EIA485)
Maximum response frequency 400 Mpps
4
EXS
5
EXA
External encoder signal
90
phase difference input
(Phases A, B and Z)
This is an external encoder 90 phase input signal.
*1
Maximum response frequency 4 Mpps (quadruple
multiplier)
6
EXA
7
EXB
8
EXB
9
EXZ
10
EXZ
EXA
EXB
t1
t1
t1
t1
t2
t1
>
0.25
μ
s
t2
>
1.0
μ
s
