ASDA-B3 Wiring DI wiring - input signals by relay or open collector transistor. Conditions of DI On / Off: ON: 15V - 24V; condition: input current = 3 mA. 3 OFF: below 5V; condition: input current ≦ 0.5 mA. C7: NPN transistor (SINK mode) Servo drive 11 COM+ Approx. 4.7 k Ω DC 24V DI C8: PNP transistor (SOURCE mode) Servo drive DC 24V 3-53 11 DI COM+ Approx. 4.7 kΩ