© Softing Industrial Automation GmbH
Chapter 3 - Hardware Installation
11
3.2
Connecting the Power Supply
The supply voltage (18 VDC ... 32 VDC) is connected by a 4-pole terminal block. The power supply is
connected to the plug connector via flexible wires with a cross section of 0.75 to 1.5 mm². The ground
connection wire must have a cross section of 1.5 mm².
Wiring Diagram for Hardware V1.01 and Lower
Pin
Signal
Description
4
L2+
Redundant positive supply voltage
3
L+
Positive supply voltage
2
Functional Earth
1
GND
Ground
Wiring Diagram for Hardware V1.02 and Higher
Pin
Signal
Description
1
L2+
Redundant positive supply voltage
2
L+
Positive supply voltage
3
Functional Earth
4
GND
Ground
CAUTION
The Functional Earth (FE) connection of the device has to be connected at low inductance
with the Protective Earth (PE) of the system.
