28
ENGLISH
Blinker
The electronic card supplies an on/off control (flashing light) to the lamp. The logic of the
blinking allows displaying the metal rolling shutter’s operating.
Quick flashing light : it signals the opening phase
Slow flashing light : it signals the closing phase
The blinker is off at the end of the cycle and during the metal rolling shutter’s pause preceding
the closure phase. The device supplies an on/off control (fixed light) to the lamp for approx.
1,5 sec. before the motor start (
pre-alarm
).
Work time
The motor’s work time is controlled by one digital timer. For the automation system to work
properly the operating time value to be set must be slightly (min. 2 sec.) above the metal
rolling shutter’s actual work time. If any command interrupts the metal rolling shutter’s travel
before its end, the Timer stops and the elapsed time is stored in memory. Therefore the unit
can determine, with a fair approximation, the partial working time necessary to the metal
rolling shutter to end its travel. In case of limit switch lack, thanks to this feature it is possible
to avoid that the motor works for a long time after the end of the metal rolling shutter’s travel,
thus reducing overheating to the minimum.
Warning
: In case of absence of power supply the stored position will be lost.
10) O
PERATION
MODES
Introduction
The electronic unit contains a micro-processor to control the metal rolling shutter’s operation
modes. These are the main operation modes :
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