Chapter 4 Electrical Installation Shenzhen Hpmont Technology Co., Ltd
―22― HD20 Series Inverters User Manual
4.4.2 Wire Jumper Description
Table 4-4 HD20 wire jumper function and setting description
Jumper
switch
Function and setting description Factory setting
CN4
AI2 analogue input channel can select voltage or current signal. When
pin 1 and pin 2 of the CN4 are short-circuited, AI2 channel inputs
voltage signal; when pin 2 and pin 3 of the CN4 are short-circuited, AI2
channel inputs current signal.
CN5
AO1 analogue output channel can select voltage or current signal.
When pin 1 and pin 2 of the CN5 are short-circuited, AO1 channel
outputs voltage signal; when pin 2 and pin 3 of the CN5 are
short-circuited, AO1 channel outputs current signal.
CN6
AO2 analogue output channel can select voltage or current signal.
When pin 1 and pin 2 of the CN6 are short-circuited, AO2 channel
outputs voltage signal; when pin 2 and pin 3 of the CN6 are
short-circuited, AO2 channel outputs current signal.
4.4.3 SCI Communication Terminal Description
Figure 4-5 SCI communication terminal
RJ45 terminal
1 8
1Pin 3
2 4 85 6 7
Signal
+5V +5V485+ GND
Reserved
GND GND 485-