hpmont HD30 Series - 4.3 Main Circuit Terminals and Wiring

Chapter 4 Electrical Installation Shenzhen Hpmont Technology Co., Ltd
―30― HD30 Series Inverters User Manual
Dry contact connections
1
．
If the internal 24V power supply is used, the connection is as shown in Figure 4-16. (The SEL
and the P24 are short-circuited at factory)
Figure 4-16 Dry contact connection when using internal 24V power supply
2
．
If the external power supply is used, the connection is as shown in Figure 4-17. (Note that the
SEL and the P24 are not short-circuited)
Figure 4-17 Dry contact connection when using external power supply
+ 3.3V
+
-
R
+ 24V
COM
P24
SEL
K
DI1...DI6
C
urrent
+ 3.3V
+
-
R
+ 24V
COM
P24
SEL
K
DI1...DI6
+
-
12－30V
DC
Current