User manual

Chapter 2 Installation and Wiring
26
Fig 2-19 Using Internal 24V Power Supply
2）If an external power supply is used, then use the Wiring shown in Figure 2-20
(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).
Fig 2-20 Use an external supply
●Method 2 of connections
1） 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 2-21.
+24V
X1～X8
PLC
5V
COM
24
V
R
DC
+
_
K
+
_
COM
+24V
X1～X8
PLC
5V
24
V
R
+
_
K