Omron OMNUC G5 Series User Manual page 91

Connection of External Encoder Input Signals and Processing of External
Signals
Serial signal
Phase A
Phase B
Phase Z
External Encoder Input Signal Table
External Encoder I/O (CN4)
Pin No. Symbol
1 E5V
2 E0V
+EXS
3
4 −EXS
+EXA
5
−EXA
6
+EXB
7
−EXB
8
+EXZ
9
10 −EXZ
Shell FG
*1 Connect external encoder signals to the serial interface (+EXS/−EXS) or 90° phase difference inputs
according to the encoder type.
OMNUC G5-series AC Servomotors and Servo Drives User's Manual (with Built-in EtherCAT Communications)
External encoder power supply output
5.2 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)
Frame ground
3-1 Servo Drive Specifications
5 V
1
E5V
2
E0V
GND
+EXS 3
4
-EXS
4.7 k Ω
+EXA 5
1.0 k Ω Photocoupler input
6
-EXA
4.7 k Ω
+EXB
7
1.0 k Ω Photocoupler input
8
-EXB
4.7 k Ω
+EXZ 9
1.0 k Ω
Photocoupler input
10
-EXZ
Shell
FG
Function and interface
External encoder power supply: 5.2 VDC ± 5%, 250
mA max.
If the above capacity is exceeded, provide a
separate power supply.
This is an external encoder serial bi-directional
*1
signal. (Conforms 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
Frame ground
3
*1
t1>0.25 μs
t2>1.0 μs
3-20