10
햲
햳
햴
햵
햶
햸
햷
햹
햺
Fig. 1
햲
Securing corner plates
햳
Pinion gear
햴
Limit inductiv sensor
햵
Operator cover
햶
Anti-crushing clutch
adjustement screw
햷
Bore for accessing oil filling cap
햸
Operator earthing connection
햹
Lever-operated release device
햺
Protective side-panels
844 R 3Ph AUTOMATED SYSTEM
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Table 1
TECHNICAL SPECIFICATIONS OF GEARMOTOR
These instructions apply to the following model:
844R 3Ph
The FAAC mod. 844R 3Ph automation for sliding gates is an
electromechanical operator powered by three-phase voltage,
transmitting motion to the sliding leaf via a rack and pinion
drive suitably coupled to the gate.
The irreversible system ensures the gate is mechanically locked
when the motor is not operating and, therefore, no lock need to
be installed.
The gearmotor is supplied with an adjustable mechanical clutch,
providing the necessary anti-crushing protection.
A convenient manual release makes it possible to move the
gate in the event of a power-cut or fault.
The 844 INTERFACE board is fitted on board the operator. This
board is used for connecting the motor and the limit inductive
sensor to the 844 T electronic control unit, which must be housed
in a separate enclosure.
The 844R 3Ph automation is designed and manufactured to
control access of vehicles. Avoid any other use whatever.
1.
DESCRIPTION AND TECHNICAL SPECIFICATIONS
1.1.
MAXIMUM USE CURVE
The curve enables you to find maximum work time (T) according
to use frequency (F).
The 844R 3Ph gearmotor can operate continuously at 60% use
frequency.
To ensure efficient operation, you have to work in the work range
under the curve.
Important:
The curve is obtained at a temperature of 24°C.
Exposure to the sun’s rays can reduce use frequency down to
20%.
Calculation of use frequency
This is the percentage of effective work time (o closing)
compared to total cycle time (o c pause time).
Calculation formula:
Ta + Tc
%F =
X 100
Ta + Tc + Tp + Ti
where:
Ta
=
opening time
Tc
=
closing time
T p
=
pause time
Ti
=
interval time between one complete cycle and
the
next
Use frequency graph
