Omron R88M-K - Page 169

3-29
3 Specifications
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
3-1 Servo Drive Specifications
3
3-1-12 External Encoder Connector Specifications (CN4)
z External Encoder I/O (CN4)
*1 Connect external encoder signals to the serial interface (+EXS/−EXS) or 90° phase difference inputs according
to the encoder type.
z 90° Phase Difference Output (3323 Hex = 0)
External Encoder Input Signal Table
Pin No. 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 exceeded, provide a separate power
supply.
2E0V
3 +EXS External encoder signal
serial interface
This is an external encoder serial bi-directional signal.
*1
(Conforms 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
Shell FG Frame ground Frame ground
Example of Connection with External Encoder
t1
t1
t1
t1
t2
t1 > 0.25μs
t2 > 1.0μs
EXA
EXB
20 kΩ
2 kΩ
20 kΩ
120Ω
2 kΩ
20 kΩ
2 kΩ
20 kΩ
120Ω
2 kΩ
20 kΩ
2 kΩ
20 kΩ
120Ω
2 kΩ
+5V
0V
PA
/PA
PB
/PB
PC
/PC
FG
-EXB
7
8
FG
FG
+EXB
5.2V±5% 250mAmax
-EXA
+EXA
GND
E5V
5V
E0V
6
5
2
1
+EXZ
-EXZ
9
10
Servo Drive side (CN4)
External encoder side
Power supply area
PULS
PULS
PULS
Shell
Phase B
Phase Z
Phase A