Speed controller for golf trolley

[redriddick]

Re: Speed controller for golf trolley

Relay out. How do I go about testing?

[redwire]

Re: Speed controller for golf trolley

This thread has info on how to test a relay: https://www.badcaps.net/forum/showthread.php?t=71359

Run a 12V light bulb, like a car tail light as a load on the contacts.
An ohmmeter is not suitable to measure contact resistance, you have to put power through them.

[stj]

Re: Speed controller for golf trolley

just assume it's for direction and jumpwire the board to test without it.

[budm]

Re: Speed controller for golf trolley

Relay out. How do I go about testing?

P/N of the relay will help to locate the pinout of the relay.

[R_J]

Re: Speed controller for golf trolley

This should be the pinout for the cma4-s-c-e
Here is a better pdf

[petehall347]

Re: Speed controller for golf trolley

on on relay is it ?

[stj]

Re: Speed controller for golf trolley

spdt - unusual pinout.

[petehall347]

Re: Speed controller for golf trolley

so like same as this ?

[R_J]

Re: Speed controller for golf trolley

Except the relay needs to be energized to change the state of the contacts, when power is removed it goes back to the N.C.contacts
Unlike your switch which will stay in either position, unless thats a momentary switch

[petehall347]

Re: Speed controller for golf trolley

need to know where always live goes to presuming it switches live .

[redriddick]

Re: Speed controller for golf trolley

Guys if I bought the relay and the mosfets. What else could be wrong with the board?
Thinking I might just buy em and stick them in??

[stj]

Re: Speed controller for golf trolley

everything could potentially be wrong.
if you power the relay, does it click?

[redriddick]

Re: Speed controller for golf trolley

Thanks Stj. Will power this evening and report back

[redriddick]

Re: Speed controller for golf trolley

Anyone care to enlighten me which points are the positive and negative

[redriddick]

Re: Speed controller for golf trolley

Ok so relay is clicking

[redriddick]

Re: Speed controller for golf trolley

Also fyi. The trolley only moves forward. There is a pentintometer in the handle to adjust the speed.

[stj]

Re: Speed controller for golf trolley

relay clicking - 50% tested.
coil works - now to check the contacts.

i like to open the cover and just LOOK at them - it's a lot simpler than using a meter.

[redriddick]

Re: Speed controller for golf trolley

relay clicking - 50% tested.
coil works - now to check the contacts.

i like to open the cover and just LOOK at them - it's a lot simpler than using a meter.

Will open it up later and have a look.

[redriddick]

Re: Speed controller for golf trolley

Contacts are like new.

[stj]

Re: Speed controller for golf trolley

then it's good - on to the rest of the board.