EA180 Series Servo Drive Users Manual 2) When the upper device is NPN open collector circuit output: Internal 24V power supply Servo drive External 24V power supply Servo drive DC24V Fig. 3-9 (a) Wiring of digital input terminals when the upper device is NPN open collector circuit output 3) When the upper device is PNP open collector circuit output: Internal 24V power supply Servo drive External 24V power supply Servo drive DC24V Fig. 3-9 (b) Wiring of digital input terminals when the upper device is PNP open collector circuit output Taking DO1 as an example, DO1 ～ DO4 interface circuits are identical.
DO5 has no DO-terminal (internal COM shorting) and only supports internal power connection. 3.4.5 Digital output terminal connection 1) When the upper device is relay input: Use internal power supply Use external power supply 25 DC5V ~ 24V Relay Servo drive No relay connected 8 DO1 NPN 37 DO1- 22 Fig. 3-10 (a) Correct wiring of DO terminal when the upper device is relay input when the upper device is relay input Fig.
3-10 (b) Wrong wiring of DO terminal 30 NPN + 24V power supply COM+ DI1 N COM +24V 25 21 5 4.7K 7 NPN + 24V power supply COM+ DI1 COM NPN +24V 25 21 5 4.7K 7 COM+ 5 5 PNP + 24V power supply COM+ DI1 NP COM +24V 25 21 5 4.7K 7 PNP + 24V power supply COM+ PNP DI1 COM +24V 25 21 5 4.7K 7 5 COM Attention☞ 1. When using an external power supply, be sure to keep an open circuit between the 24V and COM+ terminal 2. PNP and NPN mixed input is not supported 25 Servo drive 8 NPN 37 22 +24V Relay DO1 Freewheeling diode polarity error DO1- COM 25 Servo drive 8 NPN 37 22 +24V DO1 DO1- COM 25 Servo drive 8 NPN 37 22 DC5V ~ DO1 DO1- DO1 37 COM 37 COM