Where do these wires go?

alisdair4

alisdair4

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midnightdrifter.net
We finally got our new Beta 20 fitted, and the boat was launched on Friday.
However, when looking over the engine with the engineer, there is a red and black wire"left over", connected to nothing. These come from the battery management system which is a"Techsup" system. I cannot see any identifying marks or model number.
When I challenged the engineer as to why he had not reconnected them, he said that, as he had not removed the old engine (Volvo MD11c), he was unclear where they went!

The exam question is,obviously, where DO they go? The black, fairly clearly it would seem should go to earth. The red is too short to reach the batteries,which are on the other side of the boat.
I have fought shy of connecting the shore power, as I am unsur if this would be dangerous.

Any suggestions would be most gratefully received.
 
On the MD11 c wiring
The black wire between the panel and the engine is the connection between the "ignition" warning light and the alternator.
The red wire is the positive feed from the engine to the panel.

However you will need to refer to the manual for the Techsup system to identify the wires coming from it.

Do you mean Tecsup ?

If so I assume what you have is a "battery separator" which allows charging of a second battery ..... a VSR ,

in which case are at http://www.tecsup.fr/catalogue-en/catalogue-en/peripherals/Battery-separator

If I employed an engineer to install an engine I'd expect him to be competent to do so without leaving unidentified wires flapping in the breeze, finding the necessary information
 
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VicS said:
On the MD11 c wiring
The black wire between the panel and the engine is the connection between the "ignition" warning light and the alternator.
The red wire is the positive feed from the engine to the panel.

However you will need to refer to the manual for the Techsup system to identify the wires coming from it.

Do you mean Tecsup ?

If so I assume what you have is a "battery separator" which allows charging of a second battery ..... a VSR ,

in which case are at http://www.tecsup.fr/catalogue-en/catalogue-en/peripherals/Battery-separator

If I employed an engineer to install an engine I'd expect him to be competent to do so without leaving unidentified wires flapping in the breeze, finding the necessary information
Click to expand...

I suspect it was only a mechanic, the OP was in Germany and no self respecting mechanic would try and pass himself off as an engineer.
 
As I read the brochure and manual the red wire (B) should go to the existing warning light (or to alternator output) and the black wire (A) gives you a state signal for a monitor or to drive an LED (the manual says DEL not LED!), limited to 2.5mA or 5mA depending on model, not enough for a filament lamp.

I think without the red connected, the alternator is never going to charge the domestic battery if it has been connected via terminals 87 and 30 on the unit; the relay is never going to close as it thinks the alternator is not charging.
 
more wires

Troubador, as I dug into this problem further this morning, it is more complex than just 2 errant wires! I will try and post a diagram tonight(currently, using a tablet so unable to scan in).
 
Errant wires - any more ideas?

I have now dug into the electrical system on MD in more detail and have worked out what I think does what! As a result, my original question of last night has changed: I now have 5 or perhaps 6 wires for which I have no home!

As we have just returned from Kiel, I have been unable to download instruction manuals for all the bits of kit in the system.

I attach a diagram: http://www.facebook.com/photo.php?f...39274774.80265.176203555771564&type=3&theater which hopefully illustrates the dilemma.

As a fairly non-technical bloke, my immediate concern is obviously the risk of shock on the 240V side of the system. Accordingly, we have avoided using it - but this will not be feasible long-term.(SWMBO expects, etc!)

Question 1: It would appear to me that I could cut the AVS 30 out of the system by linking the 240V feed directly to the Breaker Panel, and disconnecting the link to the TECSUP and Multi-battery manager. That way, as I think I understand the (German) installer, I would get the Engine battery charged by the alternator, but not the domestic battery. A I have a wind generator feeding both batteries via an HRDX regulator, this is not a short-term problem: the domestic battery will be OK.

Question 2: where doe the 5/6 wires belong!

Apropos of a point which VicS made last night about the desirability of an engineer/mechanic knowing his sh**, I have to say that I totally agree. However, as a foreigner (even with reasonable German) one gets taken for a ride to an extent!
 
alisdair4 said:
I have now dug into the electrical system on MD in more detail and have worked out what I think does what! As a result, my original question of last night has changed: I now have 5 or perhaps 6 wires for which I have no home!

As we have just returned from Kiel, I have been unable to download instruction manuals for all the bits of kit in the system.

I attach a diagram: http://www.facebook.com/photo.php?f...39274774.80265.176203555771564&type=3&theater which hopefully illustrates the dilemma.

As a fairly non-technical bloke, my immediate concern is obviously the risk of shock on the 240V side of the system. Accordingly, we have avoided using it - but this will not be feasible long-term.(SWMBO expects, etc!)

Question 1: It would appear to me that I could cut the AVS 30 out of the system by linking the 240V feed directly to the Breaker Panel, and disconnecting the link to the TECSUP and Multi-battery manager. That way, as I think I understand the (German) installer, I would get the Engine battery charged by the alternator, but not the domestic battery. A I have a wind generator feeding both batteries via an HRDX regulator, this is not a short-term problem: the domestic battery will be OK.

Question 2: where doe the 5/6 wires belong!

Apropos of a point which VicS made last night about the desirability of an engineer/mechanic knowing his sh**, I have to say that I totally agree. However, as a foreigner (even with reasonable German) one gets taken for a ride to an extent!
Click to expand...

Oh hell !

My first obsevation is that the "Tecsup" is not the VSR, for charging both batteries from the same source, if it has a 240 volt connection to it, that I thought!
Presumably its a battery charger with 240 volt input and 12 (24?) volt output.

I guess the Surepower "Multibattery Isolator" is a diode splitter ... to charge both batteries from the same source ( alternator)
It is and you will find installation instructions here: http://www.cooperindustries.com/con...sources/instructions/BUS_CBT_INST_180119a.pdf

I see you also have an Adverc Alternator controller. You will find the installation instructions for that on their website http://www.adverc.co.uk/

Unfortunatey all the thumbnails on your Facebook page link to a pic of the Surepower device

What we need to do is find out exactly what the Tecsup thing is. If a battery charger 240 volt in and + and -ve ( red and black) out
http://www.tecsup.fr/catalogue-en/catalogue-en/Battery-charger-power-supply
But you called it a "Battery Management system"

And what the AVS30 is.
 
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Is the Tecsup a dual output charger.

Two reds are the two positves to the two batteries and black the commom negative ?
 
I have found the pictures now.

I note the Adverc is labelled 12v Neg..You will ahve to confirm that the alternator on the new engine is negative regulated. IIRC the Beta engines have Hitachi alternators which are negative regulated.

Also appears that the Tecsup unit is a 25 amp charger, but as far as I can see not one of the current range.
 
Tecsup vintage

Morning Vic,

Thanks for your series of posts - I will now have to sit down and analyse them now that I am off the boat for a week! The TECSUP is probably 12-15 years old, on the assumption that when I bought the boat in 07, most of the kit was of late '90s vintage.

The alternator polarity I can check with Beta, or from the manual (that is the only one that I have to hand).

Thanks again,

Alisdair
 
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