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Planning and
Installation Guidelines
Technical Description
4.
•
For primary loop pairs up to a size of 3 m x 4.5 m one power supply per loop pair is required.
For larger loops up to 3 m x 6 m one power supply per loop is required.
The power supplies are installed near the primary loops outside the control cabinets.
•
The power supplies are installed in the proximity of the primary loops, outside of cabinets with
a maximum wiring length (twisted primary loop cable) between power supply and each primary
loop of 5 m.
•
A space of 200 mm has to be kept above and below each power supply in order to guarantee
•
All power supplies of a setup (and adjacent setups) have to be connected one after the other
by a synchronization cable.
•
For synchronization one power supply is set to master mode and all other power supplies
connected via synchronization cables are set to slave mode.
•
All power supplies of one setup have to be switched on/off via one switch.
•
To obtain a rotating electromagnetic field, all slave devices for primary loops which are turned
by 90° against the primary loops of the master device (=0° !) have to be set to a phase of 90°.
•
At all other Slave-devices and at the Master, a phase of 0° has to be selected.
Fig. 4.1: Interconnection of two power supplies using a synchronization cable,
connection of the primary loops and operating mode settings, schematic top view diagram
40
Planning and Installation Guidelines
Power supply
sufficient air circulation and heat dissipation (see V6, 'Power Supply WPU100').
Plastic installation conduit or similar
Primary loops
Synchronization
cable
Power supply
°
Master
0
Wireless Proximity Switches / Issue: 09.2004
V 6
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