Telcoma Automations ACE401 Mode D'emploi page 38

GB
MAGNETIC LIMIT SWITCHES (fig. G)
These gearmotors come complete with two brackets with magnets (15 fig. A) and the relative sensor, fitted above the pinion (2
fig. A).
Warning! The two magnets are fitted on the bracket in a position that enables their recognition by the ECU.
Dismantling and swapping the position of either magnet may impair programming and/or operation.
Fit the fixing stud bolts and fit the two brackets temporarily to the opposite ends of the rack (fig. G).
Perform a series of checks with the motor released, moving the gate by hand.
- with the gate closed, the magnet must be facing the sensor
- open the gate and check the same situation with the opening magnet.
- the gap between the magnet and the sensor must not exceed 10mm (fig. H)
- the magnetic limit switch must not be tripped when the gate reaches the mechanical stop; this should occur at least 10 mm
earlier.
Do not finally tighten the limit switch brackets; wait for the first operating tests. It may be necessary to correct the positions due
to the motor speed or gate inertia.
Warning! The use of magnetic or electric limit switches is not an alternative to the installation and maintenance of
mechanical limit stops for the gate. These devices must restrict the gate's maximum travel in all situations.
GEAR MOTOR RELEASE AND LOCK PROCEDURE
These two operations are required only in the event of a fault or power failure, and the user or assigned personnel must be
trained by the installer, who should provide a copy of these instructions to be kept with care together with the release key.
Before performing either of these procedures, ensure that the power supply is disconnected from the entire
automation, even in the event of a power failure.
RELEASE: 1) insert the key and turn clockwise 2) pull the lever through approx. 90° 3) the motor is released and the leaf can
be moved manually. To keep the leaf blocked, proceed as follows.
1
LOCK: 3) close the lever 4) turn the safety key anti-clockwise; the gearmotor is then locked and the leaf can only be moved
electrically.
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