Chapter 3  Wiring  ASDA-A2 
3-60     Revision February, 2017 
3.8  CN5 Connector (Full-closed loop) 
Connect to the external linear scale or encoder (A, B, Z) and form a full-closed loop with the servo. 
In position mode, the pulse position command issued by the controller is based on the control loop 
of the external linear scale. Please refer to Chapter 6. 
 
 
CN5 Connector (female) 
 
Pin No.  Signal Name 
Terminal 
Symbol 
Function and Description 
1  /Z phase input  Opt_/Z  Linear scale /Z phase output 
2  /B phase input  Opt_/B  Linear scale /B phase output 
3  B phase input  Opt_B  Linear scale B phase output 
4  A phase input  Opt_A  Linear scale A phase output 
5  /A phase input  Opt_/A  Linear scale /A phase output 
6 Encoder grounding  GND  Ground 
7 Encoder grounding  GND  Ground 
8  Encoder power  +5V  Linear scale 5V power 
9  Z phase input  Opt_Z  Linear scale Z phase output 
 
NOTE
 
1)  It only supports AB phase signal and the encoder with 5 V. 
2)  Application of full-closed loop: It supports the encoder with highest resolution, 1280000 pulse 
rev (Full-closed loop corresponds to the resolution of quadruple frequency when motor runs a 
cycle.).