Maximum Use Curve; Electrical Set-Up (Standard System); Installing The Automated System; Preliminary Checks - FAAC 739 Serie Manual Del Usuario

3. MAXIMUM USE CURVE

The curve makes it possible to establish maximum work time (T) according
to use frequency (F).
With reference to IEC 34-1 Standard, the
739 gearmotor with an S3 duty, can ope-
rate at a use frequency of 30-40%.
To ensure efficient operation, it is neces-
sary to operate in the work range below
the curve.
The curve is obtained at a tem-
perature of 20°C. Exposure to the
direct sun rays can reduce use
frequency down to 20%.
C
ALCULATION OF USE FREQUENCY
Use frequency is the percentage of
effective work time (opening + closing)
compared to total time of cycle (opening
+ closing + pause times).
Calculation formula:
% F =
Ta + Tc + Tp + Ti
where:
Ta = opening time
Tc = closing time
Tp = pause time
Ti = time of interval between two complete cycles

4. ELECTRICAL SET-UP (standard system)

Operator with unit Operator with unit
Photocells Photocells
Key-operated push button Key-operated push button
Flashing lamp Flashing lamp
Radio receiver Radio receiver

5. INSTALLING THE AUTOMATED SYSTEM

5.1. Preliminary checks

To ensure safety and efficiency of the automated system, make sure the
following requirements are observed before installing the system:
• LThe gate structure must be suitable for automation. The following are
necessary in particular: wheel diameter must be in proportion to the
weight of the gate, an upper track must be provided, plus mechanical
travel stops to prevent the gate derailing.
• The soil must guarantee a perfect stability of the foundation plinth.
• There must be no pipes or electric cables in the plinth excavation
area.
• If the gearmotor is located in the vehicle transit or manoeuvre area,
adequate means of protection should be provided against accidental
impact.
• Check if an efficient earthing is available for connection to the gear-
motor.

5.2. Masonry for foundation plate

1. Assemble the foundation plate as shown in figure 04.
2. In order to ensure that the pinion and rack engage correctly, the foun-
dation plate must be positioned as
shown in Fig. 05 (right closing) or Fig.
06 (left closing).
Attenzione: The arrow on the foun-
dation plate must always point
to the gate, see Figs. 05-06.
Ta + Tc
X 100
Values are expressed in Values are expressed in
mm. mm.
3. After determining the position of the foundation plate, make a plinth as
shown in Fig. 07 and wall the plate, providing several sheaths for routing
the cables. Using a spirit level, check if the plate is perfectly level. Wait
for the cement to set.
4. Lay the electric cables for connection to the accessories and power
supply as shown in diagram of Fig. 03. To facilitate connections to the
control unit, allow the cables to protrude by at least 50 cm from the hole
on the foundation plate.

5.3. Mechanical installation

1. Remove the cover, Fig. 08 ref. 1
Fig. 3 Fig. 3
Position the operator on the foundation plate, using the supplied washers
2.
and nuts as shown in Fig. 09. During this operation, route the cables
through the appropriate openings in the motor body. If necessary, the
two holes can be joined using a hammer to obtain a wider space.
Fig. 4 Fig. 4
9
Fig. 8 Fig. 8
Fig. 5 Fig. 5
Fig. 6 Fig. 6
Fig. 7 Fig. 7
Fig. 9 Fig. 9