Chapter 6  Control Mode of Operation  ASDA-A2 
6-6     Revision February, 2017 
Pulse Specification  Max. Input 
Frequency 
Voltage 
Specification 
Forward Current 
High-speed 
pulse 
Differential 
Signal 
4 Mpps  5V  < 25 mA 
Low-speed pulse  Differential 
Signal 
500 Kpps  2.8V ~ 3.7V  < 25 mA 
Open-collector  200 Kpps  24V (Max.)  < 25 mA 
 
 
  The Source of External Pulse: 
0: Low-speed optical coupler (CN1 Pin: PULSE, SIGN) 
1: High-speed differential (CN1 Pin: HPULSE, HSIGN) 
 
Position pulse can be input from CN1 terminal, PULSE (43), /PULSE (41), HPULSE (38), 
/HPULSE (29) and SIGN (36), /SIGN (37), HSIGN (46), /HSIGN (40). It could be open-collector 
or Line Driver. Please refer to Chapter 3.9.1 for wiring method.