Pilottonny
Well Known Member
Hello you all "sparkies" out there.
Maybe you can help me with the following alternative diagram that I made for the B&C SD8 back-up alternator (on vacuum pad). Unfortunately, B&C could not give me an answer on this, since their technician has left the company.
If the alternator is wired as proposed by B&C, the warning lite will only show if the Alternator is switched off or if the circuit breaker is tripped due to an over voltage situation. But I also want to know if the alternator quit charging ! Therefore I changed the diagram. I think this will work, but I need the expertise from one of the " Sparkies" out there to confirm this. If the alternator is not putting out any power, the relay should stay open and the light will be on. When the alternator makes power, the relay is pulled and the light goes off. The diode will avoid the battery to back-feed to the relay.
Please let me know if there is anything that I did not think of.
Regards, Tonny.
Maybe you can help me with the following alternative diagram that I made for the B&C SD8 back-up alternator (on vacuum pad). Unfortunately, B&C could not give me an answer on this, since their technician has left the company.
If the alternator is wired as proposed by B&C, the warning lite will only show if the Alternator is switched off or if the circuit breaker is tripped due to an over voltage situation. But I also want to know if the alternator quit charging ! Therefore I changed the diagram. I think this will work, but I need the expertise from one of the " Sparkies" out there to confirm this. If the alternator is not putting out any power, the relay should stay open and the light will be on. When the alternator makes power, the relay is pulled and the light goes off. The diode will avoid the battery to back-feed to the relay.
Please let me know if there is anything that I did not think of.
Regards, Tonny.
Last edited: