hpmont HD30 Series - Page 47

Chapter 4 Electrical Installation Shenzhen Hpmont Technology Co., Ltd
―30― HD30 Series Inverters User Manual
Source (Drain) connections
1. If the external power supply is used, the source connection is as shown in Figure 4-15. (Note
that the SEL and the P24 are not short-circuited)
Figure 4-15 Source input signal connection when using external power
2. If the external power supply is used, the drain connection is as shown in Figure 4-16. (Note
that the SEL and the P24 are not short-circuited)
Figure 4-16 Drain input signal connection when using external power
+ 3.3V
+
-
R
+ 24V
P24
SEL
DI1
+ 3.3V
+
-
COM
DI6
R
6
1
12－30V
DC
+
-
External
controller
Source connection
using external power
+ 3.3V
+
-
R
+ 24V
P24
SEL
DI1
+ 3.3V
+
-
COM
DI6
R
6
1
DC 12－30V
+
-
External
controller
Drain connection
using external power