![background image](http://html.mh-extra.com/html/omron/omnuc-g5/omnuc-g5_user-manual_742230129.webp)
3-46
3-1 Driver Specifications
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
3
Specifications
Connection of External Encoder Input Signal and Processing of External Signals
External Encoder Input Signals List
External scale I/O (CN4)
* 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.*(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.*
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