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Some of the most common problems that can occur during installation are indicated below.
• No Led is on:
check terminals 1 and 2 for mains voltage and make sure fuses F1 or F3 have not blown.
• The manoeuvre does not start:
check that the safety input led’s “Stop”, “Photo” and “Photo2” are active and that the motor is blocked (release led off).
• The direction of movement is inverted during the manoeuvre:
check that no safety devices have triggered (“Photo” in the closing manoeuvre and “Photo2” in the opening manoeuvre) or that the current
sensitivity device has not cut in; in the latter case check that the adjustment is sufficient for the movement of the door. If this is not the
case, increase the level by rotating one of the two trimmers clockwise (TR2 for opening, TR1 for closing).
• The “OK” led flashes quickly:
the input voltage is insufficient or an incorrect combination has been selected with the Dip switches.
• The motor moves slowly:
if it was previously released, the control unit is performing an alignment operation; the first cut-in of the current sensitivity device is
considered as a mechanical stop and the correct position is recalled from the memory.
• The motor performs the acceleration phase and stops:
check whether the encoder led flashes while the motor is moving. The led may flash at different speeds depending on the speed of
movement. When the motor is stopped the led may be on or off depending on the position in which the motor shaft stopped.
• The “OK” led remains on for a few seconds immediately after a command:
this shows there is a fault in the motor command stage; check the wiring and earth connection of the motor, other wise replace the
control unit.
9) What to do if…
Power input : A924 control unit ➡ 230 Vac ± 10 %, 50-60Hz
: A924/V1 control unit ➡ 120 Vac ± 10 %, 50-60Hz
Power from batteries : 21 ÷ 28 Vdc (two 12 volt batteries, capacity 6Ah)
Current sensitivity adjustment : from 2.5 to 15 A
Service output : 24 Vdc, maximum current 200mA
Phototest output : 24 Vdc maximum current 200 mA
Flashing lamp output : 24 Vdc maximum power 25 W
Electrical block output : 24 Vdc maximum current 500 mA
SCA led output : 24 Vdc maximum power 5W
Courtesy light output : 24 Vdc maximum power 5W
Maintenance led output : 24 Vdc maximum power 2 W
Pause Time : programmable from 1 to 1023 seconds
Battery charger voltage: : 27 V
dc
Charge current : 200 mA
Complete charge time : approx. 24 h for two 12V - 6Ah batteries
Operating temperature : -20 a +70 °C
Protected to : IP55
Dimensions and weight : 220 x 280 h 110, approx. 4 Kg
10) Technical features
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