3.4 - Installation of the gearmotor mod. WL1024C - WL1024
WARNINGS
• Failure to install correctly can cause serious injury to the person carry-
ing out the work and those using the system.
• Before starting to assemble the automation system, carry out the pre-
liminary checks described in paragraphs 3.1 and 3.2.
• The gearmotor arm can be shortened from the standard length provid-
ed. It needs to be reduced in length if there is a fixed obstacle close to
the gearmotor (such as a wall or post) impeding the full range of move-
ment of the arm. In order to establish whether the arm needs to be
shortened, it is therefore necessary to follow the procedure in 3.4.1
before starting the installation.
Assemble the component parts of the motor arm, referring to fig. 3. Do not in -
se rt the Benzing retaining ring at this stage (fig. 4). N.B.! - The curved arm
mu st be positioned with the curved part towards the gate leaf, as shown
in fig. 5.
3.4.1 - Establishing the length of the gearmotor arm
01. Determine the VERTICAL position of the gearmotor:
draw a horizontal line on the column at the same height at which the fas-
tening bracket for the arm will be located on the leaf once the installation is
complete.
02. Determine the HORIZONTAL position of the gearmotor:
a) Determine the maximum opening position of the leaf: determine the
maximum opening angle (maximum 110°).
b) Measure distance B and determine distance A:
1 - Measure distance B on the column (fig. 5). This is the distance be -
tween the fulcrum of rotation of the gate leaf and the surface of the column
where the rear bracket of the gearmotor will be fixed.
2 - On Graph 2A, mark distance B, as just measured, and trace a vertical
line from this point until it intersects with the area which includes the angle
value measured in point a.
3 - At the points where the vertical line intersects with the area, trace hori-
zontal lines across column "A", to determine the values which can be used
for distance A. Then choose a value for A from this range, one of the
smaller values if possible.
4 - Mark distance A on the column and trace a vertical line corresponding
to it (fig. 6).
5 - If there is a wall or other immovable obstacle near the vertical line,
measure the distance between this line and the obstacle (fig. 7): this is
distance E.
IMPORTANT!
• If distance E falls in the range 80 mm (minimum) to 299 mm (maxi-
mum), continue the installation with procedure 3.4.3.
• If distance E is 300 mm or more, continue the installation with pro-
cedure 3.4.2.
GRAPH 2A
5 - Release the gearmotor with the dedicated key (see chapter 3.8).
3.4.2 - Installation of a gearmotor with a STANDARD LENGTH ARM
Important! - This part of the installation can only be carried out after 3.4.1
has been completed.
01. Affix the gearmotor to the column (fig. 8):
a) Hold the gearmotor against the column(*) so that its vertical centre line
corresponds with the vertical line traced earlier (distance A), and its arm
corresponds with the horizontal line traced during procedure 3.4.1. Now
ensure that the gearmotor is completely levelled: if off-axis, it can cause the
automation to malfunction.
(*) Note - If the column surface is between 80 and 135 mm wide, then
before continuing with the installation, the gearmotor's rear fastening
bracket will need to be rotated by 90°. To rotate the bracket, refer to fig. 9.
b) Mark the fastening points, drill the required holes in the surface of the
column and insert the plugs; now fix the gearmotor in place using suitable
screws and washers.
02. Affix the gearmotor arm to the gate leaf (fig. 8):
c) Bring the gate leaf into the fully Closed position;
d) Push forcefully the gearmotor arm to its maximum extension. Cau-
tion! - Make sure the arm is locked in its end stop;
e) Bring the arm up to the gate leaf and hold the fastening bracket against
the leaf.
f) Ensure that the gearmotor arm is levelled properly, and use a pencil to
mark the centre of the slot profile on the bracket, to enable fine adjust-
ments to be made to the closure alignment of the leaf in future (see para-
graph 3.7).
g) Holding the bracket against the gate leaf with one hand, attempt to open
and close the gate completely, up to the respective mechanical stops.
Important! - If the movement of the arm is hampered during the test
by a wall or other fixed object, stop working on this procedure and go
to procedure 3.4.3.
h) Drill holes in the gate leaf at the points marked and remove the bracket
from the arm and affix it to the gate leaf with suitable screws.
i) Attach the arm to the bracket, inserting the pin and the Benzing retaining
ring. Important - Check that the bracket and the arm are completely level.
Loosen the screws of the bracket and adjust as required to ensure level.
This check can also be performed by measuring a distance of 75 mm (see
fig. 8 phase 2).
l) Fix the end stops to the ground permanently, in the position determined
at the start of the procedure. Important! - Check that the gate leaf closes
completely against the end stop (not supplied).
m) Finally, bring the leaf manually to around its midpoint of travel and
secure the gearmotor using the dedicated key (see chapter 3.8). Then
manually open the leaf by a few more centimetres.
03. If the gate being automated has two leaves, then to install the other gear-
motor repeat all the actions described here in chapter 3.4.
English – 3