Veikong VFD500 Series User Manual page 32

VFD500 high performance vector control frequency inverter user manual
External
controller
（PNP Typt）
VCC
VCC
Y1
Y2
Y3
Y4
Y1～Y7
Y5
Y6
Y7
C：NPN mode uses external +24V power supply
Note：
1. If the output of the external controller is a relay contact, it can be regarded as an NPN or PNP type. The
"0V" or "VCC" of the external controller in the above figure can be regarded as the common terminal of the
relay.
2. When using an external power supply, the shorting link between +24V and PLC must be removed,
otherwise the product will be damaged!
3. When using an external power supply, when using HDI, connect the negative pole of the external power
supply to COM, otherwise HDI will be invalid!
4. The voltage range of VCC is 10V~30V.
Switch output terminal instructions
The multi-function output terminals DO1 and HDO can be powered by the internal +24V power supply of the
inverter or an external power supply. The wiring diagram is as follows:
VFD500
A、Use internal power supply
Note：
The multi-function terminal output is an open collector output with a maximum allowable current of 50mA. When
using the internal power supply, if the inductive load is driven, an absorption circuit such as an RC snubber circuit or
a freewheeling diode should be installed. When adding a freewheeling diode, be sure to confirm the polarity of the
diode, otherwise the product will be damaged. For external power supply, connect the negative terminal of the
+24V
VFD500
PLC
COM
DI1
DI2
DI3
DI4
HDI(DI5)
DI6
DI7
3-24 Switching Digital input terminal wiring diagram
+24V
Relay
DO1 / HDO
COM
3-25 Switching digital output terminal wiring diagram
- 30-
Chapter3 Product appearance and wiring
External
+24V
controller
VCC
（PNP type）
VCC
Y1
Y2
Y3
Y4
Y1～Y7
Y5
Y6
Y7
D：PNP mode uses external +24V power supply
VFD500
+24V
DO1 / HDO
COM
B、Use external power supply
+24V
VFD500
PLC
COM
DI1
DI2
DI3
DI4
NOTE(3)
HDI(DI5)
DI6
DI7
Relay