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5. Operating the Light Curtain
5.1 Pilot Beam
The pilot beam is used to synchronise the light curtain.
It is the closest beam to the display and may not be
continuously interrupted.
5.2 Adjustment
The purpose of adjustment is to accurately set the light curtain receiver to the required range. Adjustment must be
performed after mechanical installation of the light curtain. After the light curtain has been adjusted, it immediately
switches to the respectively selected operating state as soon as supply power is applied.
The necessary degree of alignment depends on the distance between transmitter and receiver (see
table on page 18). If the necessary degree of alignment has been achieved, this value must be ac-
cepted by means of the Enter key.
5.2.1 Using the Aligning Tool
The RF aligning tool is extremely helpful thanks to the use of visible red light.
The function of the aligning tool is based upon the principle of a reflector.
The arriving light beam is reflected back in exactly the same direction from which it originated.
For an easier adjustment the special alignment optic SZ0-LAH1 can be used.
Reflector
Procedure:
• Position the aligning tools at the top and bottom in front of the receiver.
• Observe the aligning tools from the emitter (look from the emitter to the receiver).
• Adjust the emitter such that the reflected spot is situated at the centre of the respective RF aligning tool.
RF Aligning Tool
RF Aligning Tool
Receiver
Emitter
RF Aligning Tool
RF Aligning Tool
Receiver
Emitter
Emitter
Receiver
Pilot Beam
