24 V Segment Power Supply / 24 V Main Power Supply; 24 V Segment Power Supply - Burkert 8644 AirLINE Instructions De Service

24 V segment power supply / 24 V main power supply

The reference potential of the segment power supply must be the same as that of the main power
supply. Hence no separate potential structure is possible on the periphery side.
The main power supply and the segment power supply are equipped with elements for protection
against false polarity and transient overvoltage.
ATTENTION!
Assure short-circuit protection!
The main power supply and the segment power supply are not equipped with
elements for protection against short circuits.
You as the user must arrange for this protection. The rating of the upstream fuse must
be chosen such that it does not exceed the maximum permissible current load.

24 V segment power supply

You can supply or generate the segment voltage at the bus terminal or one of the supply terminals.
There are several options for providing the segment voltage at the bus terminal (on connector 4):
1. You can supply the segment voltage at the terminal points 1.1/2.1 and 1.3/2.3 (GND) of the power
supply connector separately.
2. You can bridge the connections 1.1/2.1 and 1.2/2.2 to assure supply of the segment circuit from the
main circuit.
3. With a switch between terminal points 1.1/2.1 and 1.2/2.2, you can build up a switched segment circuit
(e.g. also an EMERGENCY OFF circuit).
Type 8644
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OMMISSIONING
CO 7