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UK Caravanning (uk.rec.caravanning) A forum for the discussion of caravanning undertaken by residents of the United Kingdom, whether in the UK or abroad. It encourages the interchange of views on the merits of models of caravan, makes of tow car, accessories, caravan sites, caravan clubs, and other related topics. The term caravan is to include trailer vans, motor caravans and trailer tents.

split charge relay????



 
 
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  #1 (permalink)  
Old October 23rd 05, 11:55 AM posted to uk.rec.caravanning
dunky
external usenet poster
 
Posts: 29
Default split charge relay????

hi just got a split charger for the van but bit confused as to wiring
instructions given as follows------the accumulator separating filter leads
the charging current separately to both accumulators. on this occasion the
charging distributes according to the charging condition of the accumulators
(an accumulator which is almost charged receives less charging current than
an accumulator which is nearly empty).thus the accumulators are not directly
connected in parallel. the second accumulator charger is a voltage
separating filter only, but no charging regulator. thus the conventional
charging regulator suitable for the connected accumulators must be
superimposed between voltage source and the relay in order to avoid
overload of the accumulators.--------- charging regulator --- is this a
fuse???-------so according to diagram ,relay has 2 input +,- and 2 outputs +
so should output no 1 + go to engine battery and no2+ go to leisure in the
back of van?should inline fuses go in also??
should i take off the wire from generator to engine battery then put in
relay input + to the generator with a 8amp fuse inline.? now to the earth,
diagram has earth input coming from generator plus the 2 batteries all
joined together?but as the engine battery will already be earthed to van and
so presumably the generator where should this input earth on diagram be
coming from?? anyway im sure its all quite simple and straightforward
when u know how??
cheers dunky


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  #2 (permalink)  
Old October 23rd 05, 05:24 PM posted to uk.rec.caravanning
Harry Bloomfield
external usenet poster
 
Posts: 582
Default split charge relay????

dunky has brought this to us :
charging regulator --- is this a
fuse???-------so according to diagram ,relay has 2 input +,- and 2 outputs +
so should output no 1 + go to engine battery and no2+ go to leisure in the
back of van?should inline fuses go in also??
should i take off the wire from generator to engine battery then put in
relay input + to the generator with a 8amp fuse inline.? now to the earth,
diagram has earth input coming from generator plus the 2 batteries all
joined together?but as the engine battery will already be earthed to van and
so presumably the generator where should this input earth on diagram be
coming from?? anyway im sure its all quite simple and straightforward
when u know how??


Mmmm... that does sound confusing and I cannot even work out which type
of relay that is.

There are two types...

1. Has a terminal which needs to be connected to the charge light/
battery warning light circuit where it comes from the alternator. It
simply makes the relay when the light goes out.

This will have two heavy current terminals and two smaller ones for
ground plus the warning light circuit.

2. Senses the voltage across the main battery and when it rises above a
certain point closes the relay.

This will have two heavy current terminals plus a smaller ground
terminal.

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk


  #3 (permalink)  
Old October 23rd 05, 05:24 PM posted to uk.rec.caravanning
Harry Bloomfield
external usenet poster
 
Posts: 582
Default split charge relay????

dunky has brought this to us :
charging regulator --- is this a
fuse???-------so according to diagram ,relay has 2 input +,- and 2 outputs +
so should output no 1 + go to engine battery and no2+ go to leisure in the
back of van?should inline fuses go in also??
should i take off the wire from generator to engine battery then put in
relay input + to the generator with a 8amp fuse inline.? now to the earth,
diagram has earth input coming from generator plus the 2 batteries all
joined together?but as the engine battery will already be earthed to van and
so presumably the generator where should this input earth on diagram be
coming from?? anyway im sure its all quite simple and straightforward
when u know how??


Mmmm... that does sound confusing and I cannot even work out which type
of relay that is.

There are two types...

1. Has a terminal which needs to be connected to the charge light/
battery warning light circuit where it comes from the alternator. It
simply makes the relay when the light goes out.

This will have two heavy current terminals and two smaller ones for
ground plus the warning light circuit.

2. Senses the voltage across the main battery and when it rises above a
certain point closes the relay.

This will have two heavy current terminals plus a smaller ground
terminal.

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk


  #4 (permalink)  
Old October 23rd 05, 09:33 PM posted to uk.rec.caravanning
SandS
external usenet poster
 
Posts: 97
Default split charge relay????


"dunky" --remove55 wrote in message
...
hi just got a split charger for the van but bit confused as
to wiring
instructions given as follows------the accumulator separating
filter leads
the charging current separately to both accumulators. on this
occasion the
charging distributes according to the charging condition of the
accumulators
(an accumulator which is almost charged receives less charging
current than
an accumulator which is nearly empty).thus the accumulators are
not directly
connected in parallel. the second accumulator charger is a
voltage
separating filter only, but no charging regulator. thus the
conventional
charging regulator suitable for the connected accumulators must
be
superimposed between voltage source and the relay in order to
avoid
overload of the accumulators.--------- charging regulator ---
is this a
fuse???-------so according to diagram ,relay has 2 input +,-
and 2 outputs +
so should output no 1 + go to engine battery and no2+ go to
leisure in the
back of van?should inline fuses go in also??
should i take off the wire from generator to engine battery
then put in
relay input + to the generator with a 8amp fuse inline.? now to
the earth,
diagram has earth input coming from generator plus the 2
batteries all
joined together?but as the engine battery will already be
earthed to van and
so presumably the generator where should this input earth on
diagram be
coming from?? anyway im sure its all quite simple and
straightforward
when u know how??
cheers dunky


Hi. This is not the instructions for a split charge Relay but
rather a twin accumulator (battery) charger. It is not a
regulator (the alternator's own regulator will handle this, or if
using a generator you'll need a separate regulator in line
between the generator and the twin accumulator charger). The unit
will handle the division of charge power to both batteries but
will NOT regulate the input power. Depending on the input power
then without a regulator inline with the input side one or both
batteries may overcharge.

Anyway, getting back to the question. Yes, the input +ve goes to
the generator (with a fuse as near the generator as possible).
Output +ves each go to the +ve of a battery (e.g. Output +ve 1 to
Main and Output +ve 2 to Auxillary). The Negatives will all need
to be joined together, so if your generator uses the vehicle
chassis as -ve earth and so do both batteries then connecting the
Input -ve to earth will suffice. Fuses should go as close to +ve
power sources as possible, so one on the Generator +ve, and one
each on the battery +ves (all as close to the generator/batteries
as possible).

Regards,
Steve


  #5 (permalink)  
Old October 23rd 05, 09:33 PM posted to uk.rec.caravanning
SandS
external usenet poster
 
Posts: 97
Default split charge relay????


"dunky" --remove55 wrote in message
...
hi just got a split charger for the van but bit confused as
to wiring
instructions given as follows------the accumulator separating
filter leads
the charging current separately to both accumulators. on this
occasion the
charging distributes according to the charging condition of the
accumulators
(an accumulator which is almost charged receives less charging
current than
an accumulator which is nearly empty).thus the accumulators are
not directly
connected in parallel. the second accumulator charger is a
voltage
separating filter only, but no charging regulator. thus the
conventional
charging regulator suitable for the connected accumulators must
be
superimposed between voltage source and the relay in order to
avoid
overload of the accumulators.--------- charging regulator ---
is this a
fuse???-------so according to diagram ,relay has 2 input +,-
and 2 outputs +
so should output no 1 + go to engine battery and no2+ go to
leisure in the
back of van?should inline fuses go in also??
should i take off the wire from generator to engine battery
then put in
relay input + to the generator with a 8amp fuse inline.? now to
the earth,
diagram has earth input coming from generator plus the 2
batteries all
joined together?but as the engine battery will already be
earthed to van and
so presumably the generator where should this input earth on
diagram be
coming from?? anyway im sure its all quite simple and
straightforward
when u know how??
cheers dunky


Hi. This is not the instructions for a split charge Relay but
rather a twin accumulator (battery) charger. It is not a
regulator (the alternator's own regulator will handle this, or if
using a generator you'll need a separate regulator in line
between the generator and the twin accumulator charger). The unit
will handle the division of charge power to both batteries but
will NOT regulate the input power. Depending on the input power
then without a regulator inline with the input side one or both
batteries may overcharge.

Anyway, getting back to the question. Yes, the input +ve goes to
the generator (with a fuse as near the generator as possible).
Output +ves each go to the +ve of a battery (e.g. Output +ve 1 to
Main and Output +ve 2 to Auxillary). The Negatives will all need
to be joined together, so if your generator uses the vehicle
chassis as -ve earth and so do both batteries then connecting the
Input -ve to earth will suffice. Fuses should go as close to +ve
power sources as possible, so one on the Generator +ve, and one
each on the battery +ves (all as close to the generator/batteries
as possible).

Regards,
Steve


 



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