2.2) Typical system layout
1. Column
2. Photocell
3. Key switch or digital keypad
4. Release knob
5. Flashing light
6. Aerial
7. SUMO
8. Power line
9. Mechanical travel stops
10. A924 control unit
1) Product description
SUMO is an electromechanical actuator for automating the
movement of sectional doors and two-wing sliding doors (fig. 3-11).
The cable outlet shaft makes it easy to connect the spring holder
shaft to most of the sectional doors available on the market. As well
as powering the direct current motor with encoder, the A924 control
unit also offers precise torque and gear motor speed adjustment,
exact position detection, gradual departure and closing, and obstacle
detection. It also features a maintenance LED which records the
manoeuvres performed by the gear motor during its working life.
The release device which disengages the motor from the gear motor
can be activated from the ground.
2) Installation
2.1) Preliminary checks
Before proceeding with the installation of any powered system, check
that the structure is suitable, that is, make sure it complies with current
standards.
In particular, check that:
the door does not stick when opening or closing;
the door does not require a force of over 300N (30kg) to be moved;
the door is well balanced, that is, if it stops in any position it remains
motionless;
the door moves silently, smoothly and doesn’t skid;
the area identified for fitting the gear motor ensures the release
manoeuvre can be made easily and safely;
please remember that SUMO must power a door (sectional or two-
wing) which must be in good condition and safe; it cannot make up
for defects caused by incorrect installation or bad maintenance.
the packaging is undamaged, please see fig. 1;
referring to fig. 2, check that the fixing area is compatible with the size
of the gear motor.
Fig. 3 shows a typical installation of the gear motor.
3
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