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Slave panel voltage too high?
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 Posted: Saturday Nov 25th, 2006 10:49 am
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johndpar
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Joined: Thursday Nov 2nd, 2006
Location: Syresham, Northamptonshire, United Kingdom
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Hi

My turn for some odd behavoir from a system that's been installed for over 6 years.

Last night was interrupted by false fire alarms from several smoke detectors, and it would seem this is down to a fault on the SEP.

Having removed the cover on the panel to which the smoke detectors were all connected I found to my horror that the battery was quite hot, bulging in a couple of places and the positive terminal had been so hot as to melt the red plastic.

The battery charging voltage is 14.2 V which is too high in my opinion. The other panels in the system are all at 13.7 on charge.

I suspect the voltage regulator / charging circuit has been damaged by the failing battery and is now passing too high a voltage.

This is clearly a problem as the 12V supply on the PCB is also at this 14.2V level and I suspect this is why I was getting false alarms from the smoke detectors.

Before I connect a new battery to this panel, is there any chance of getting the schematic for that part of the circuit?

Regards

John




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