Delta Electronics AC Servo Drive ASDA-AB User Manual page 54

Use a relay or open-collector transistor to input signal.
NPN transistor with multiple emitter fingers (SINK Mode)
C9: Wiring of DI signal, for the use of internal
power supply
PNP transistor with multiple emitter fingers (SOURCE Mode)
C11: Wiring of DI signal, for the use of internal
power supply
Caution: Do not use dual power supply. Failure to observe this caution may result in damage to the servo drive
and servo motor.
Revision January 2009
Chapter 3 Connections and Wiring|ASDA-AB Series
C10: Wiring of DI signal, for the use of external power
supply
C12: Wiring of DI signal, for the use of external power
supply
3-29