Eaton SmartWire-DT SWD Series User Manual

8 SL4-SWD and SL7-SWD base modules for signal towers
8.4 Installation
208 SmartWire-DT module IP20 01/20 MN05006001Z-EN www.eaton.com
8.4.2 Connecting the external supply voltage
The signal towers will be supplied with 24 VDC through the SWD line.
If there is a large number of SmartWire-DT modules on a single SWD line, it
may be necessary to connect an additional supply voltage to the SmartWire-
DT base module.
Figure 73: How the supply voltage is routed when there is an external supply and the jumpers are set
accordingly
To connect an external supply voltage, follow the steps below:
▶ Connect the supply cables to the "24 V external" push-in terminals.
Keep the permissible terminal capacities in mind, ￫ Section
8.4.4, „Terminal capacities“, page 209.
▶ Set the jumpers on the pins as shown in the following table.
Figure 74: Connecting the external supply voltage with jumpers
The external supply voltage is applied.
8.4.3 Connect SmartWire-DT
External power supply
On Off
0 V 24 V
+15 V
Sel_Out
GND
A
B
GND
0 V
+24 V
INT EXT
24 V external
X1 (IN)X2 (OUT)
EXT
INT
EXT
INT

SWD stations may be destroyed if they are refitted in the SWD
line when the power supply is on.
Switch off the power supply beforehand!

Eaton SmartWire-DT SWD Series Specifications

General

Brand	Eaton
Model	SmartWire-DT SWD Series
Category	Control Unit
Language	English