Power Supply Installation; Overview; Considerations; Figure 4.7 Power Wiring For Wienet Fs 8/16-Ei-W - Wieland wienet FS8 Series User Manual

4.5 Power Supply Installation

4.5.1 Overview

Warning!
Power down and disconnect the power cord before servicing or wiring the Switch.
W AR NI NG
Attention!
Do not disconnect modules or cabling unless the power is first switched off.
The device only supports the voltage outlined in the type plate. Do not use any other power components except
A T T E NT I ON
those specifically designated for the switch device.
Attention!
Disconnect the power cord before installation or cable wiring.
A T T E NT I ON
The Switches can be powered by using the same DC source used to power other devices. A DC voltage
range of 12 to 48 VDC must be applied between the V1+ terminal and the V1-terminal (PW1), see the
following illustrations. A Class 2 power supply is required to maintain a UL60950 panel listing. The chassis
ground screw terminal should be tied to the panel or chassis ground. A redundant power configuration is
supported through a secondary power supply unit to reduce network down time as a result of power loss.

4.5.2 Considerations

Take into consideration the following guidelines before wiring the device:

The Terminal Block (CN1) is suitable for 12
(7 lb-in).

The cross sectional area of the earthing conductors shall be at least 4 mm

Calculate the maximum possible current for each power and common wire. Make sure the power
draw is within limits of local electrical code regulations.

For best practices, route wiring for power and devices on separate paths.

Do not bundle together wiring with similar electrical characteristics.

Make sure to separate input and output wiring.

Label all wiring and cabling to the various devices for more effective management and servicing.
N OTE
Note
Routing communications and power wiring through the same conduit may cause signal interference. To avoid inter-
ference and signal degradation, route power and communications wires through separate conduits.
Wieland Electric GmbH | BA001047 (Rev. A) | 06/2018
Single
GND

Figure 4.7 Power Wiring for wienet FS 8/16-EI-W

4 Switch Installation
Redundant
GND
24 AWG (3.31 0.205 mm 2 ). Torque value 0.8 Nm
2 .
25