wildebus
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I don't know about other folk, but I have in my previous camper driven off with the EHU lead attached . I am going to put some of the blame for how I fitted the EHU plug in such a stealthy way I don't see it, but really the fault does lay with the operator of the vehicle I hate to admit .
Fortunately, the case of that camper, no damage ever occured and it was just a matter to refitting cable to EHU socket each time. But the current Motorhome would be a different matter I think with its more standard and typical side-wall mounted inlet
Fast forward a few years and Fisherman Bill and I were making some updates to his new Rapido end of last year and I noticed he had an alarm that would sound if the engine was turned on when the EHU was plugged in. According to the manuals, it was a warning not to have the mains charger and B2B charger active at the same time.
I thought that was a bit annoying intially TBH, but it made me think that maybe it was also a reminder not to drive away with the mains lead still plugged in!!
So eventually I decided it could be handy in my own motorhome should I get another lapse of concentration, given my previous record? A buzzer of some type, similar to the buzzer if you start the engine with the step out?
So decided to make my own version ...
Buzz Buzz by David, on Flickr
Relay powered by ignition signal (so only uses power when ignition on) and Relay control signal activated when 240V is detected on the EHU inlet. So ignition off, no buzzer; ignition on, buzzer if EHU plugged in, no buzzer if not.
Now it does work based on power detected on the lead, not just the physical presence of being plugged in, so if the supply is tripped, say, then it will not know to buzz, but that limitation I can live with. Fitted under the lounge seat (where the connections are ) and buzzer still plenty loud enough to be heard (can hear it OUTSIDE the van!)
Fortunately, the case of that camper, no damage ever occured and it was just a matter to refitting cable to EHU socket each time. But the current Motorhome would be a different matter I think with its more standard and typical side-wall mounted inlet
Fast forward a few years and Fisherman Bill and I were making some updates to his new Rapido end of last year and I noticed he had an alarm that would sound if the engine was turned on when the EHU was plugged in. According to the manuals, it was a warning not to have the mains charger and B2B charger active at the same time.
I thought that was a bit annoying intially TBH, but it made me think that maybe it was also a reminder not to drive away with the mains lead still plugged in!!
So eventually I decided it could be handy in my own motorhome should I get another lapse of concentration, given my previous record? A buzzer of some type, similar to the buzzer if you start the engine with the step out?
So decided to make my own version ...
Buzz Buzz by David, on Flickr
Relay powered by ignition signal (so only uses power when ignition on) and Relay control signal activated when 240V is detected on the EHU inlet. So ignition off, no buzzer; ignition on, buzzer if EHU plugged in, no buzzer if not.
Now it does work based on power detected on the lead, not just the physical presence of being plugged in, so if the supply is tripped, say, then it will not know to buzz, but that limitation I can live with. Fitted under the lounge seat (where the connections are ) and buzzer still plenty loud enough to be heard (can hear it OUTSIDE the van!)