Pin Assignments Version A5 - Siemens FS20 Mounting & Installation

Mounting and installation of the compact control panels
5
Power supply (150 W)

5.7.4 Pin assignments version A5

5.7.4.1 X1 mains connection
106 | 354
Building Technologies
Fire Safety
1 Cable tree to periphery board or fire terminal board
2 Existing cable tree (connection for master power supply)
3 Additional cable tree for the second power supply (slave)
4 Additional fused terminal (F2) on the DIN rail
● The connection lines marked in bold of the additional cable tree (3) and the
existing cable tree (2) must be wired again when installing the second power
supply (slave).
● In order to avoid operating temperature differences, the two power supply units
must be mounted next to each other in the same housing.
● The batteries and the system supply must only be connected to the master
power supply unit.
● The positive pole for the batteries must be unwired at connection X8-9 (Master)
and be provided with an external fuse.
● Only one temperature sensor must be connected to the master power supply
unit.
● The temperature sensor must be fitted close to the batteries. (You will find
precise details in document 008851).
Pin Designation
1 PE
2 N
3 N
4 L
5 L
Admissible cable cross-section: 0.2...2.5 mm²
When replacing a power supply, note the different pin assignment as against that
in the power supply SV 24V-150W-A4.
Description
Earth (protective conductor)
Neutral conductor
Neutral conductor
External conductor (L1)
External conductor (L1)
008851_s_en_--
2016-01-27