
Shenzhen Hpmont Technology Co., Ltd
Chapter 4 Electrical Installation
HD20 Series Inverters User Manual
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23
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4.4.4 Control Terminal Connection
Figure 4-6 HD20 control circuit connection diagram
DI1
DO2
DO1
CME
R1A
R1C
R1B
DO1 reference ground
GND
AO1
AO2
DI2
DI3
DI4
DI5
DI6
COM
AI1
AI2
+10
HD20
GND
COM
DO2 reference ground
Multi-function input terminal 1
Multi-function input terminal 2
Multi-function input terminal 3
Multi-function input terminal 4
Multi-function input terminal 6
Multi-function input terminal 5
Digital ground
Analogue input 1
Analogue input 2
Analogue ground
Analogue ground
Analogue output channel 2
Analogue output channel 1
Programmable
relay output
Programmable open-collector
output channel 1
Programmable open-collector
output channel 2
control board
PE
Shielded cable
1
3
CN
4
V
I
1
3
CN
5
V
I
1
3
CN
6
V
I
4