hpmont HD30 Series - Page 39

Shenzhen Hpmont Technology Co., Ltd Chapter 4 Electrical Installation
HD30 Series Inverters User Manual ―31―
NPN (PNP) connections
1
．
If the external power supply is used, the NPN connection is as shown in Figure 4-18. (Note that
the SEL and the P24 are not short-circuited)
Figure 4-18 NPN input connection when using external power supply
2
．
If the external power supply is used, the PNP connection is as shown in Figure 4-19. (Note that
the SEL and the P24 are not short-circuited)
Figure 4-19 PNP input connection when using external power supply
+ 3.3V
+
-
R
+ 24V
P24
SEL
DI1
+ 3.3V
+
-
COM
DI6
R
6
1
12－30V
DC
+
-
External
controller
+ 3.3V
+
-
R
+ 24V
P24
SEL
DI1
+ 3.3V
+
-
COM
DI6
R
6
1
DC12－30V
+
-
External
controller
4