Bow thruster wiring and solenoid

[tijnklein]

Hi guys, im in need of some advice.
In this Aquasport boat there is a built-in elctrical bow thruster, it was totally trashed, no wire was on the pole where it ever belonged.
I have the thruster (12V) refurbished and a new solenoid(same model as th e old one)
But i dont really know how to connect everything, the solenoid came without a small manual.
The
So im hoping now you can help me.
I made a few pictures:
The solenoid has 3 poles on top and 1 on the side,
it also has 4 small poles on both sides called A1 and A2 (im assuming this is for actuating the solenoid from the switch).




The thruster has 4 poles(A1 A2 and 2 others)


Could anyone help me with this problem?

 

[rogerthebodger]

This may help but I would expect the thruster to have 3 connections to match the solenoid you have.

What is the make and model of the thruster motor.

This says its for a windlass but the vetus bow thruster is wired in the same way.

this also may help

http://www.vetus.com/media/magentominds/sasdocument/20121113005947_0.pdf

 

[aquapower]

Try this

www.albrightinternational.com/wpcms...atalogue-Sheet-v1a-06-13-Electronic-Issue.pdf

 

[tijnklein]

Firstly, thank you for your replies.

The make is a bit of a question, there is 'KAD 12 35' stamped in it.

@aquapower, i still cant figure out what the pole on the side is for. could it be a negative pole?

 

[Big John]

@aquapower, i still cant figure out what the pole on the side is for. could it be a negative pole?

I am not an expert but having looked at the link to the manufacturer the pole on the side is connected to the single pole on the top of the solenoid, this being +. I am guessing that you can connect the main 12v + input from your battery to either depending on your installation. The other two poles are 12v + out for reversing the motor. This depends on how you wire up the 2 outputs to your motor.

 

[VicS]

Firstly, thank you for your replies.

The make is a bit of a question, there is 'KAD 12 35' stamped in it.

@aquapower, i still cant figure out what the pole on the side is for. could it be a negative pole?

It is the common normally closed contact, "D" in the diagram in Aquapower's link

But without knowing the make and model of the bowthruster it is difficult without a crystal ball to advise on its wiring.

If it only had two connections I would assume these go to B and C , battery + to A and battery negative to D but it is more complex that that.

 

[rogerthebodger]

The 4 connections on the thruster confuses me as normally reversing thruster motors have 3 terminals as in my diagram one is negative and the other 2 are positive one for each direction.

The other type has only 2 terminals in which case the direction or rotation is changed by reversing the positive and negative.

One other thought is that 2 or the terminals are for the field windings and the other 2 are for the rotor and changing the polarity of one pair only will change the direction.

 

[VicS]

One other thought is that 2 or the terminals are for the field windings and the other 2 are for the rotor and changing the polarity of one pair only will change the direction.

I'd think this is probably the explanation

 

[VicS]

I'd think this is probably the explanation

Here is part of the wiring diagram for a Vetus bowthruster. For clarity I have omitted the control switches ... we dont know anything about them anyway.

The motor is series wound the control relay reverses the polarity of the field winding ( terminals D1 and D2) according to which relay coil; k1 or k2 is energised

I have added A, B, C, D to the diagram to correspond with the terminal identifications on the relay in the diagram in aquapower's link

The full Vetus wiring diagram is at http://www.vetus.com/media/magentominds/sasdocument/20121113033658_0.pdf (Section 10)


Roger, What do you think ?

 

[rogerthebodger]

Roger, What do you think ?

I think you nailed it Vic.

I have a Vetus bow thruster, but pls keep it quiet, and a spare relay that I got from a boat jumble one time I was in the UK but its on the boat so don't have access it it at the moment.