Chapter 4 Electrical Installation
Shenzhen Hpmont Technology Co., Ltd
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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
CN
4
1
3
V
I
CN
5
1
3
V
I
CN
6
1
3
V
I
RJ45
terminal
1
8
1
Pin
3
2
4
8
5
6
7
Signal
+5V
+5V
485+
GND
Reserved
GND GND
485-