netjordan Posted March 12, 2016 Share Posted March 12, 2016 Hello I'm in the process of installing a Galaxy G2-20 but have run into a bit of an issue, Essentially connecting the battery seems to 'break' something. With AC connected, and battery connected the SAB power and Keypad LCD (and Keypad Backlight) turns off. Keypad LED Remains on and AUX Power Remains on. Removal of the battery returns power output & keypad to expected functionality. I've checked the polarity & voltage at various points and all seems good. Anyone got any ideas or seen this before? Quote Link to comment Share on other sites More sharing options...
norman Posted March 12, 2016 Share Posted March 12, 2016 Is the battery charged? What type and Ah is it? Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
netjordan Posted March 12, 2016 Author Share Posted March 12, 2016 Is the battery charged? What type and Ah is it? It's a 7Ah Lead Acid battery. Voltage on the battery is about 12.5V, when connected to the panel the 12v outputs on the panel are around 2.5V Quote Link to comment Share on other sites More sharing options...
Lwillis Posted March 12, 2016 Share Posted March 12, 2016 Is the battery charged correctly. Seems few batteries with reversed polarity on them. Quote Link to comment Share on other sites More sharing options...
netjordan Posted March 12, 2016 Author Share Posted March 12, 2016 Is the battery charged correctly. Seems few batteries with reversed polarity on them. Just checked polarity and voltage of the battery with a multimeter - 12.9V and polarity correct. I've tried three different batteries, with the latest one being brand new. Quote Link to comment Share on other sites More sharing options...
norman Posted March 12, 2016 Share Posted March 12, 2016 Where did you source the panel from? Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
netjordan Posted March 12, 2016 Author Share Posted March 12, 2016 Where did you source the panel from? It was from eBay - brand new. Came with all the packaging, manuals, screws and resistors etc. Quote Link to comment Share on other sites More sharing options...
norman Posted March 12, 2016 Share Posted March 12, 2016 Remove everything except the rkp and try again with the battery. Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
Nova-Security Posted March 12, 2016 Share Posted March 12, 2016 battery could be knackered, seen batteries with 12v on meter but current reading less than 1amp, cells had gone low resistance, check battery resistance with meter. Quote www.nova-security.co.uk www.nsiapproved.co.uk No PMs please unless i know you or you are using this board with your proper name. Link to comment Share on other sites More sharing options...
al-yeti Posted March 12, 2016 Share Posted March 12, 2016 He tried three batteries , I say it's the panel , had some where they give either continuous battery mis or mains fail , probably sold on eBay for that Raise case on eBay asap not as described Quote Link to comment Share on other sites More sharing options...
netjordan Posted March 12, 2016 Author Share Posted March 12, 2016 He tried three batteries , I say it's the panel , had some where they give either continuous battery mis or mains fail , probably sold on eBay for that Raise case on eBay asap not as described I've raised the case on eBay - thanks everyone for their efforts with trying to diagnose this problem. Much appreciated. Quote Link to comment Share on other sites More sharing options...
Nova-Security Posted March 12, 2016 Share Posted March 12, 2016 He tried three batteries , I say it's the panel , had some where they give either continuous battery mis or mains fail , probably sold on eBay for that Raise case on eBay asap not as described So he did in post 5 Dose every DIY (as its in the DIY section) have 3 7ahr batteries laying around ? Would have expected to see + Batt Miss Quote www.nova-security.co.uk www.nsiapproved.co.uk No PMs please unless i know you or you are using this board with your proper name. Link to comment Share on other sites More sharing options...
al-yeti Posted March 12, 2016 Share Posted March 12, 2016 Think he said three different batteries could mean anything Quote Link to comment Share on other sites More sharing options...
netjordan Posted March 25, 2016 Author Share Posted March 25, 2016 Sorry to re-open old threads. I've since sent the panel back to the ebay seller and got a refund, then been out and got one from a reputable wholesalers but are still getting similar problems. All seemed to be good up until I connected power for 5 PIRs. However, now the symptoms are slightly different. I connect the battery - if I leave it at that all is good for a few minutes or so, after a few minutes the screen does turn off. Also if I try to exit engineer mode the display will turn off immediately. It seems to be when the panel is checking for the presence of a battery (as it would periodically and when exiting engineer mode) is when it causes it to turn off. Any ideas? Quote Link to comment Share on other sites More sharing options...
andy82 Posted March 25, 2016 Share Posted March 25, 2016 Sorry to re-open old threads. I've since sent the panel back to the ebay seller and got a refund, then been out and got one from a reputable wholesalers but are still getting similar problems. All seemed to be good up until I connected power for 5 PIRs. However, now the symptoms are slightly different. I connect the battery - if I leave it at that all is good for a few minutes or so, after a few minutes the screen does turn off. Also if I try to exit engineer mode the display will turn off immediately. It seems to be when the panel is checking for the presence of a battery (as it would periodically and when exiting engineer mode) is when it causes it to turn off. Any ideas? Have you definitely connected the battery leads to the correct connection on the panel marked up as batt and not connected to the normal 12vdc output, failing that possibly you have a load of duff batteries, have you checked the charging voltage and current? Quote Link to comment Share on other sites More sharing options...
norman Posted March 25, 2016 Share Posted March 25, 2016 Remove everything except the rkp and try again with the battery. Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
PeterJames Posted March 25, 2016 Share Posted March 25, 2016 use a 3.4 Ah battery you dont need 7Ah for 5 pirs a rkp and a bbox Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 On 24 March 2016 at 10:41 AM, norman said: On 11 March 2016 at 10:46 AM, norman said: Remove everything except the rkp and try again with the battery. Hi, I have the same problem with a g2-20 did you ever get to the bottom of the problem? I have bought another g2-20 card and I have the same problem and now the 12v doc Aux outputs are outputting continuously at 6v not enough to power up my rkp. Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2016 Share Posted May 2, 2016 Op needs to send keypad back And to where did you get panel send it back provided your trying this with no loads etc Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 Panel was obtained from eBay and the rkp is the mk7 keyprox which I've had on my system for 7 years, the only loads on the panel were the keypad. Does is problem permanently damage the g2-20 board? Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2016 Share Posted May 2, 2016 Plenty g2 floating about with faults , even brand new , poor manufacturing in recent times I would say How far is cable from keypad to panel , if cable is hidden try and fly wire from panel to keypad just to rule that out if you get me Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 1 hour ago, al-yeti said: Plenty g2 floating about with faults , even brand new , poor manufacturing in recent times I would say How far is cable from keypad to panel , if cable is hidden try and fly wire from panel to keypad just to rule that out if you get me Board is doing this without any load only ac power on and no battery connected, I am measuring 6v dc from aux o/p's. Have a g2-44 and two g2-20's all with the same symptoms, I blew the aux fuse on 2 of these boards prior to this happening - this of course maybe related to my problem, old age and forgetting to power down unit prior to pulling a cable causing +ve and -ve to short out. But one of the boards came from eBay which measuried this way before any load put on it. This isn't just happening to me I guess?! Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2016 Share Posted May 2, 2016 Picture of where your taking measurements, as your saying three boards all with same problem Quote Link to comment Share on other sites More sharing options...
al-yeti Posted May 2, 2016 Share Posted May 2, 2016 Also what did you do to blow the fuse Quote Link to comment Share on other sites More sharing options...
Andromeda Posted May 2, 2016 Share Posted May 2, 2016 43 minutes ago, al-yeti said: Also what did you do to blow the fuse Just above the RS485 terminals there are 4 +/- aux outputs (these have red and black wires in the picture), the fuse blew in effect by shorting these terminals (touching red and black wires at a PIR). Quote Link to comment Share on other sites More sharing options...
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