User manual

Chapter 2 Installation and Wiring
27
Fig 2-21 Method 2 of connections (a)
2） Inverter’s internal +24 V power supply is used and the external controller uses NPN
transistors whose common emitters are connected, as shown in Figure 2-22
(Attention: be sure to disconnect the cable JP1 between PLC and 24 V for models of
S2R4GB～3004GB; and disconnect the wiring cable between PLC and 24 V for
models of 35R5GB/37R5PB～3500G, short circuit terminal PLC and COM).
Fig 2-22 Method 2 of connections (b)
COM
PE
1
PLC
X1
24V
COM
24V DC
+
—
5V
8
X8
5V
External
tll
Shield wire near grounding
COM
PE
1
PLC
X1
24V
COM
24V DC
+
+
5V
8
X8
5V
External
ll
Shield wire near grounding