
42 Planning and Installation Guidelines
Planning and
Installation Guidelines
Technical Description
Wireless Proximity Switches / Issue: 09.2004
V 6
•
The sync-connections are a non-isolated functional DC-voltage (FELV).
•
The sync-connections may be connected via plastic-sheated cable to the sync connections
of other power supplies WPU100.
•
The 2nd PE-connection (at the housing) has to be connected in a star type configuration to the
common connection point / cabinet.
•
In installations with a residual-current circuit breaker a type B-switch has to be used.
Primary loop
Primary loop
Primary loop
90°
Master (always 0°)
Slave 1
0°
Slave 2
90°
Power Supply
Power Supply
Power Supply
control cabinet
power line
Fig 4.3: WPU100 wiring example
contact-
bridge
2CDC352041F0003.EPS
laid together
(e..g. in a cable duct)
circuit -
breaker
contact-
bridge