Chapter 3 Electrical Installation
Shenzhen Hpmont Technology Co., Ltd.
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HD3N-TC Series Inverter User Manual V1.0
3.3.2
Control Terminal Wiring
To reduce the interference and attenuation of control signal, length of control cable should limit within
50m. There should be more than 0.3m between the control cable and the motor cable.
The control cable must be shielded cable. The analogue signal cable must be shielded twisted pair.
Figure 3-2 Frame1 / Frame2 digital input (DI)
Figure 3-3 Frame1 / Frame2 digital output (DO)
Figure 3-4 Frame1 / Frame2 analogue input (AI)
DI1
DI2
DI3
DI4 GND
Dry Contact
NPN Contact
DI1
DI2
DI3
DI4 GND
External controller
10 - 30VDC
10kΩ
DO
GND
+
-
+10
GND
DO
f
Relay coil
Digital
frequency
+10
AI
GND
V
I
1
ON
AI
GND
V
I
1
ON