BFT E5 Manual Del Usuario página 10

this could compromise the safety of the automation and the controller could
get damaged.
Carry out the adjustment as follows:
Remove the cover "A" and rotate from time to time small sections of the screw "C"
using the appropriate spanner "B". To tighten the clutch, rotate the screw clockwi-
se (towards +), to loosen the clutch, rotate the screw anticlockwise (towards -).
Carry out the adjustment on every controller mounted and refit the cover "A".
Fig.24 indicates the assembly sequence for the clutch components: A) cover, C)
adjustment screw, E) Belleville washer, F) clutch disks with inside keying, g) clutch
disks with outside keying, H) arm, I) shim washer, L) grooved reduction shaft.
9) LIMIT SWITCHES
The controllers are not equipped with electric limit switches. For this reason,
they must be controlled by a control unit with adjustment of the operation time.
When the leaf reaches the gate stop limit the clutch slides and the motor remains
energised until the total operation time set has elapsed. The operation time can
be set on the control unit by means of a trimmer. The time is correct when the
time set is 3-5 seconds greater than the actual time needed to complete one full
opening and closing cycle. If the leaf is too slow, adjust the operation time in
closing position. The less the movement time at the end of stroke is, the longer
the clutch life will be.
If external electric limit switches are used, refer to the two different installation
methods in fig.25-26. The limit switches must be sealed. To connect the limit
switches, refer to the instructions for the control unit.
10)EMERGENCY MANOEUVRE
Since the gearmotor is reversible, release the electric lock and move the leaves
manually in the case of a power failure. When the power supply has been restored,
the automation operates automatically.
11) CHECKING THE AUTOMATION
Before considering the automation completely operational, the following checks
must be made with great care:
Check that all the safety means work properly (i.e. clutch, photocells, pneumatic
skirts, etc.).
Check that the thrust (anti-squash) of the leaf is within the limits prescribed by
the standards in force.
Check the manual opening control.
Check the opening and closing manoeuvres using the controls.
Check the control unit's electronic logic in normal or customised operation.
12) USE OF THE AUTOMATION
Since the automation may be remote controlled either by radio or a start button (and
therefore not visually), it is essential that all safeties are checked frequently.
Any malfunction should be corrected immediately by qualified personnel.
Keep children at a safe distance from the field of action of the automation.
13) THE CONTROLS
With the automation the gate has a power driven opening and closing. The con-
trols can come in various forms (i.e. manual, remote controlled, limited access by
magnetic badge, etc.) depending on needs and installation characteristics. For
details on the various command systems, consult the specific instruction booklets.
Anyone using the automation must be instructed on its operation and controls.
14) MAINTENANCE
All maintenance operations must be performed with the system power supply
shut off.
Lubricate periodically the articulated elements of the drive arm.
Clean the optical system of the photocells every now and then.
Have the adjustment of the electric clutch checked by a qualified specialist
(installer).
For any malfunction that remains unsolved, shut off the power to the system and
call a qualified specialist (installer).
15) NOISE
The aerial noise produced by the gearmotor under normal operating conditions
is constant and does not exceed 70dB(A).
16) SCRAPPING
Materials must be disposed of in conformity with the current regulations.
In case of scrapping, the automation devices do not entail any particular risks
or danger. In case of recovered materials, these should be sorted out by type
(electrical components, copper, aluminium, plastic etc.).
18) TROUBLESHOOTING
18.1) The gate does not open. The motor runs, but the opening movement
does not start.
1) Check if the electric lock works correctly.
2) Check if the mechanical arrangement of the gate is faulty, e.g. there are interfe-
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E5
INSTALLATION MANUAL
rences with the gate stop limits or between the edges of the leaves.
3) Check if the clutch slides and, if necessary, tighten it by rotating the screw
towards the + sign (max. thrust allowed 150N).
4) If the motor runs in the direction opposite to the right one, invert the driving
connections of the motor (check rotation by lifting the clutch cover).
If after having carried out the checks listed above the problem persists, replace
the controller.
18.2) The gate does not open or close. The motor does not run and no sound
is heard.
1) Check that the control unit is correctly powered.
2) Check that the photocells or the rubber skirts are not engaged.
2) Check that the electronic equipment is correctly powered. Check that the
fuses are not damaged.
4) Check that the electronic functions of the equipment are correct by means of
the diagnostic LEDs or through a visual inspection.
5) Check that no remote controls, start buttons or other devices are keeping the
start contact (N.C.) closed.
If after having carried out the checks listed above the problem persists, replace
the control unit.
18.3) The noise originating from the motor is high when the leaf encounters
the gate stop limit.
1) When the clutch slides because the leaf has reached the gate stop limit, the
leaf must be still and no oscillations should be noticed. If jog movements are
noticed, reinforce the leaf so as to eliminate the problem.
2) If the leaf cannot be reinforced, decrease the working time so that the clutch
slides as little as possible.
3) If the disks are bright, restore them with sandpaper or, if necessary, replace
them.
The descriptions and illustrations contained in the present manual are not
binding. The Company reserves the right to make any alterations deemed
appropriate for the technical, manufacturing and commercial improvement
of the product, while leaving the essential product features unchanged, at
any time and without undertaking to update the present publication.