tau MASTER Serie Manual De Uso Y Mantenimiento página 12

OVERALL DIMENSIONS
The main overall dimensions of the sliding gate are indicated in fig.
1, 2 and 3; the base plate dimensions are indicated in fig. 8, while
the dimensions of the adjustable base plate are indicated in fig. 28.
PRELIMINARY OPERATIONS
Before starting any type of operation, carefully read the instruction
present in this manual.
Before starting installation, make sure that all parts are present
(fig. 4), wear suitable work clothing and accessories and do not
handle live electrical parts.
INSTALLATION MEASUREMENTS
The measurements indicated in fig. 6 and 7 for the excavation and
those in fig. 11 for the positioning of the base plate, must be re-
spected for the correct installation of the gearmotor.
PRE-INSTALLATION CHECKS
Use on gates with a gradient or slope is NOT allowed.
Before installation, check that:
- the wheels of the gate have been fitted so that the gate itself is
stable, and that they are in good condition and
working correctly;
- the track is free, straight and clean along its entire length and
has the stops at each end;
- the upper guide is inline with the track, and is greased and al-
lows the leaf a play of approx. 1 mm;
- check that the floor stops are present.
LOCATION
If fixing directly to a concrete surface, choose a position equivalent
of the area outlined in fig. 6, or as in fig. 7 if an excavation has to
be made.
BASE PREPARATION
Dig a sufficiently wide foundation that is at least 15 cm deep. Intro-
duce a protective sheathing for the cables.
FIXING OF THE BASE PLATE
Note: the foundation counterplate is positioned correctly
when the arrows on it are pointing in the following directions:
one towards the gate and the other to the left (1 fig. 12).
Once the foundations are ready, prepare the base plate by insert-
ing the threaded ties into their holes, securing them on the lower
face with the 4 narrow nuts and with the 4 locking nuts on the upper
face (fig. 9). Note: the threaded section must be protruding by
no more than 40 mm in order to secure the gearmotor (fig. 10).
Cover with concrete, making sure that the ties are well imbedded;
the base plate must be perfectly level and 1 or 2 cm (fig. 11) from
floor level and approx. 50 mm from the gate (fig. 7).
Note: The gearmotor can also be fitted without the base plate,
using 4 foundation bolts on a level concrete surface making
sure that the measurements indicated in fig. 6 are respected.
Optionally, a height adjustable base plate can be used. In this case
the fixed ties must be welded to the track and after locked with 4
expansion bold M12x120 (see fig. 29). The adjustable base plate
is then secured as indicated in fig. 30.
In this way the gearmotor can be adapted to an already existing
system; the measurements indicated in fig. 29 must be respected.
SECURING OF THE GEARMOTOR
Remove the 4 locking nuts from the threaded section of the ties,
position the gearmotor as illustrated in fig. 13, then secure it us-
ing the washers and previously mentioned nuts (fig. 14). Pass the
cables through the hole of the base plate.
Note: a hole has been arranged on the alumium base (fig. 13),
under the transformer housing, to drain possible water de-
posit.
The same operations are also use for the adjustable base plate as
indicated in fig. 31 and 32.
12
SECURING OF THE RACK
Having previously drilled the leaf, secure the rack with the 6.3 mm
diameter self-tapping screws, see fig. 16.
It is extremely important that the installation measurements
and the distance between the teeth of the gear and the teeth
of the rack are respected, as indicated in fig. 18, 19 and 20.
Note: the rack should run on the gearmotor gear for the entire
width of its teeth (fig. 24).
There are two available types of rack: the standard enbloc type
and the sectional type of which each single piece measures 50 cm
in length fig. 27.
SECURING AND ADJUSTMENT OF THE LIMIT SWITCH
PADS
Position each pad close to the end of the rack as in fig. 17. Manu-
ally manoeuvring the leaf, position the pads so that they make
slight contact with the microswitch lever just before the interven-
tion of the mechanical stops at the end of the track, and tighten
the screws.
The manufacturer advises that a distance between a minimum
of 15 mm and a maximum of 18 mm should be maintained
between the gearmotor casing and the limit switch pads fitted
on the rack in order for the automation system to function
correctly (fig. 23).
The contact point of the limit switch pads with the spring
should also be lubricated with a little oil in order to help slid-
ing and prevent the spring from being compressed.
Note: for complete safety, the mechanical stops with rubber
cap (floor stops) must be fitted, as shown in fig 5.
A single factor or combination of factors (thermal ex-
pansion, climate, frequency of use, etc.) may result in
the position the gate stops in changing over the course
of the day, both when opening and when closing. Con-
sequently, we cannot guarantee that the gate will al-
ways stop in the same position.
MAGNETIC LIMIT SWITCHES (MASTER20QM)
During movement, the gate mounting the magnets fitted on the
rack approaches the sensor installed on the gearmotor, and acti-
vates this sensor, consequently stopping closure.
The magnets must be installed at a distance from the closing edge
(X, fig. 17B) taking gate inertia into account. We recommend test-
ing the magnets on the rack before fixing them permanently (the
magnets remain firmly in place) in order to find the correct position
for optimal operation.
The magnet with North polarity (black) is used as an opening limit
switch (OLS), and the magnet with South polarity (red) is used as
a closing limit switch (CLS).
Note: to activate correctly the magnetic sensor, dis-
tances as shown in picture 17/B must be respected
IMPORTANT: It is necessary to activate the brake func-
tion (see controller's manual, "DIP Switches" section)
when magnetic limit switches are installed.
TYPE OF SYSTEM (fig. 5)
1 Gearmotor
2 Photocell column
3 Flashing light with antenna
4 key operated selector switch
5 Safety photocell
6 Sensitive edge
7 Floor stop
8 Post for control panel
9 Control panel complete with casing
MASTER Series