Fermax VIDEOMEMORY 128 DIGITAL, Manual

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Pag 27
KIT
VIDEOMEMORY 128 DIGITAL
VIDEOMEMORY 128 DIGITAL
- 12 Vdc door-opener with the 18 Vdc-1.5A power supply:
* Make sure you are using a 12 Vdc (direct current)
door-opener, max. 0.3 A.
* Increase the cross-section of the negative.
* Distance between panel and monitor. Increase the cross-
section or add additional power supply..
- 12 Vac door-opener with the 12 Vac-1A power supply:
* Make sure you are using a 12 Vac (alternating current) door-
opener, max. 0.8 A.
SYMPTOM POINTS BE CHECKED
•
It does not enter programming
mode.
•
Auto-on does not work .
- Negative wire cross-section. Increase.
- Distance between panel and monitor. Increase cross-section
or add additional power supplies.
- Power supply position. Maximum distance to panel: 30 metres/
90 feet. Increase section or add additional power supply.
•
It does not enter programming
mode.
•
Auto-on works .
- Resistor 10 KOhms.
- Distance between panel and monitor. Increase cross-
section or add additional power supplies.
- Check that Jumper JP1 is set in the panel.
•
There is no call, but there is panel
monitoring.
•
When the call button is pressed,
the Diagnostic LED emits short
flashes.
- Short circuit between «L» and «+».
•
The panel emits a continuous se-
ries of short beeps.
- Short circuit between «L» and «-».
•
There is no call, but there is panel
call monitoring.
•
When the call button is pressed,
the Diagnostic LED does NOT
ligth at all.
- Check that the monitor is switched on .
- Check cable «L».
- Monitor wrongly programmed. Program it again.
•
Very weak audio sound, or fee-
dback that cannot be eliminated
with the audio adjustment
potentiometers.
- Resistor 10 KOhms. There must be only 1 resistor, in
the furthest monitor.
•
The door lock release/electric lock
is not working properly.