Omron OMNUC G5 R88M-K series User Manual page 105

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