Capacitor Units for DC operation.

Try a series 1 ohm resistor, with the 6000UF capacitor on its own, as a current limit- should stop the controller tripping out on overload.

Yes, I would love to but I have no access to components except RS (Fr) who have min order values or eBay. I should have said that the optimum I found relied on residual circuit resistance hence fitting them at a distance.

I am slightly at a loss as to what you are trying to achieve by adding the capacitors.

On start-up the controller will have to charge the capacitors, which just means that it will take longer for the motor to see enough voltage to start. For steady state running all the capacitors will do is reduce any ripple that is on the supply. On slowing or stopping all they will do is provide a small delay as the voltage is reduced. Also at startup the capacitors will take a graet gulp of current, which is why the controller is tripping out, and on stopping the capacitors will hold the voltage above the controller voltage which could damage some controllers' outputs, particularly if there is no motor to discharge them at the time.

You may be better off adding extra capacitance inside the controller so that there is extra reservoir capacitance before the electronic control. This will help ensure that there is enough capacity when large current spikes are drawn, without the above problems.

Regards Jeff

What problem are you trying to solve? Whatever it is, this is most probably the wrong way to do it.

If you want that kind of behaviour you should buy a proper "inertia" controller.

I wouldn't ;-)

MBQ

That is a large amount of energy to be stored what about a problem on the line a small short could start a fire!!

Peter