Setting the device into service
Leuze electronic
MLD 300, MLD 500
64
Prerequisites:
• Mounting and prealignment have been performed, i.e. transmitter and receiver or transceiver and
Deflecting Mirror are in a vertical position and the front screens of the devices are facing one
another.
• The safety sensor is electrically connected.
• The LEDs on the light axes of the transmitter illuminate green, the LEDs and, if applicable, the 7-seg
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ment display on the receiver are also active.
If the red LED on the receiver illuminates or for optimum adjustment (green LED is illuminated), loosen
the screws on the mounting brackets or on the device columns.
Turn the receiver to the left until LED1 still flashes green but does not yet illuminate red. You may also
need to carefully turn the transmitter in this direction.
Note the value of the twist angle.
Turn the receiver to the right until LED1 still flashes green but does not yet illuminate red. You may also
need to carefully turn the transmitter in this direction.
Note the value of the twist angle.
Set the optimum position of the receiver. This lies in the middle of the two values for the twist angle to
the left and right.
8.5
Aligning with integrated laser alignment aid
(MLD 300-xxL, MLD 500-xxL)
To simplify the alignment of the safety sensor during start-up, the transmitters of the series mentioned
above are optionally equipped with an integrated laser alignment aid. You can use this to precisely and
quickly align the transmitter and receiver and, for multi-sided access guarding, the Deflecting Mirror
Columns and their individual mirrors.
When using Deflecting Mirror Columns for multi-sided access guarding applications, we recom
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mend using transmitter-receiver systems with integrated alignment aid see chapter 8.5 „Aligning
with integrated laser alignment aid“or a laser alignment aid as an accessory (see chapter Acces
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sories) for simplifying the alignment process.
Loosen the screws only enough so that the devices or columns can just be turned.
Note that, for technical reasons, the individual laser beams are not 100% parallel. This does not
have a negative impact on the alignment process, since the deviation from parallelity is much
smaller than the conical beam expansion of the effective safety-related infrared beams emitted
by the transmitter.
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