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5) Open the gate manually and weld the remaining supports.
Proceed in this manner for all the rack elements and supports
until the entire gate has been covered.
N.B.: Check that none of the rack elements come off the pinion
during the movement of the gate.
Important: Do not weld the rack elements together.
After installing the rack, lower the position of the gear motor by
about 4 mm (fig. 12) by adjusting the level screws (A, Fig. 8) to
ensure correct meshing with the pinion.
Screw up tightly the 4 gear motor securing nuts.
Fig. 11
Check manually that the gate reaches the mechanical travel
limits correctly and that it does not encounter friction during its
travel. Do not use grease or other lubricants between the pinion
and the rack.
4.4.2. POSITIONING THE BENT TRAVEL STOP PLATES
The operator is equipped with a mechanical travel stop with roller
and trigger. The movement of the gate is stopped when a bent
travel stop plate fixed to the top of the rack operates the trigger,
tripping the microswitch (fig. 12A).
To position the two travel stop plates provided, proceed as
follows:
1) Switch on the power supply.
2) Move the gate by hand towards its open position, stopping
5 cm from the desired closure position.
3) Slide the travel stop plate along the rack in the opening
direction.
When the LED of the opening travel end limit switch in the
electronic control unit goes out, advance the travel stop plate
10 mm more, and fasten it temporarily in position with two spot
welds.
4) Move the gate by hand towards its closed position, stopping
5 cm from the mechanical travel stop.
5) Slide the travel stop plate along the rack in the closing
direction.
Fig. 10
When the LED of the closing travel end limit switch in the electronic
control unit goes out, advance the travel stop plate 10 mm more,
and fasten it temporarily in position with two spot welds.
Note: the travel stop plates may be fastened by means of screws,
if desired (fig. 12A).
The fastening slot makes it possible, if necessary, to adjust the
travel stop position.
Important:
6) Lock the system (see paragraph 9).
Fig. 11A
Caution: To prevent damage to the operator and/or stoppage
of operation, leave about 5 cm between the limit switch position
and the desired closure position.
5.
START-UP
Warning: Always turn off the electricity supply before carrying out
any work on the electronic control unit (connections,
programming, maintenance).
Observe points 10, 11, 12, 13 and 14 in the GENERAL SAFETY
INSTRUCTIONS.
Since the system requires two different power supplies (230 and
400 Vac), install two differential magneto-thermal circuit breakers
with adequate trip threshold up-line of the system.
Fig. 12
Connect the earth cable to the connection on the base of the
operator. See fig. 15.
7
a) The limit switch must be tripped by the initial
bent part of the travel stop plate, as shown in
fig. 12A.
b) It is advisable to straighten the final bent part of
the travel stop plate, as shown in fig. 12A, in
order to prevent the plate from passing the limit
switch.
ENGLISH
Fig. 12A
1
2
3
Fig. 15
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