Aligning Of Deflecting Mirrors With The Laser Alignment Aid - Leuze electronic MLC 500 Original Operating Instructions

Alignment can be performed with a clear protective field by observing the LEDs and the 7-segment display
(see chapter 3.4 "Display elements").
Ä Loosen the screws on the mounting brackets or device columns.
NOTICE
Loosen the screws only enough so that the devices can just be moved.
Ä Turn the receiver to the left until LED1 still flashes green but does not yet illuminate red. If necessary,
you may have to turn the transmitter beforehand.
ð The receiver with activated alignment display shows flashing segments in the 7-segment display.
Ä Note the value of the twist angle.
Ä Turn the receiver to the right until LED1 still flashes green but does not yet illuminate red.
Ä Note the value of the twist angle.
Ä 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.
Ä Tighten the fastening screws of the receiver.
Ä Now align the transmitter according to the same method, paying attention to the display elements of the
receiver while doing so (see chapter 3.4.2 "Operating indicators on the MLC 520 receiver").
NOTICE
Separate alignment aids such as the AC-ALM are also available as accessories.
8.3

Aligning of deflecting mirrors with the laser alignment aid

When using deflecting mirrors for multiple-side point of operation guarding and access guarding, an exter-
nal laser alignment aid is recommended (see chapter 15 "Order guide and accessories").
NOTICE
With its clearly visible red light spot, the external laser alignment aid facilitates the correct set-
ting of the transmitter and receiver as well as the deflecting mirrors.
Ä Fasten the laser alignment aid on top on the side groove of the transmitter. Mounting instructions are
included in the accessories.
Ä Switch on the laser. Take note of the operating instructions of the laser alignment aid concerning the
safety notices and the activation of the laser alignment aid.
Ä Loosen the mounting bracket of the transmitter and turn or tilt or pitch the device so that the laser spot
strikes the top of the first deflecting mirror (see chapter 6.2.2 "Definition of directions of movement").
Ä Now set the laser below on the transmitter and adjust it so that the laser spot strikes the bottom of the
deflecting mirror.
Ä Now set the laser back up top on the transmitter and check if the laser spot still strikes the top of the
deflecting mirror. If it does not, the mounting height of the transmitter must be changed, if applicable.
Ä Repeat the process until the laser strikes the respective point of the deflecting mirror, both on top and
on bottom.
Ä Turn, tilt or pitch the deflecting mirror so that the laser spot strikes either the next deflecting mirror or
the receiver in both positions.
Ä Repeat the process in reverse after setting the laser alignment aid above and below on the receiver.
The laser beam must strike the transmitter in both cases if the receiver has been correctly aligned.
Ä Remove the laser alignment aid from the safety sensor.
ð The protective field is free. LED1 on the receiver is permanently lit green. The OSSDs switch on.
Leuze electronic MLC 520 Host/Guest
Starting up the device
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