hey all i need some help i have a slow (120 rpm) Electric DC motor that i need to have variable speed on. i was told that a normal house hold dimmer switch could be used as its only running of a 12volt batt. is this information correct because i cant figure out what wires goes in where (as im only using 2 core wire) i have "c" "L1" "L2" where do i put what wires in where? if i cant do it can some one help me locate i inexpencive one? basicly my old mans broke the switch "dimmer" on his electric golf trolley, and i need a replacement as he is strating to struggle to pull his golf bag 18 holes! any help would be great Thanks all Ben
thanks for the quick reply but i have used that and it does not work im using a 1gang 40 - 400 watt dimmer switch? am i being really thick could you tell me how to wire it up do i put the c end conneted to the motor terminal and then l1 to + of the battery and the other - from the battery to the - on the motor? Thnaks ben
Cannot see any reason why you shouldn't use a dimmer, it's the same as a wire wound motor controller! Try a bog standard 200W version;-)
am i being really thick could you tell me how to wire it up do i put the c end conneted to the motor terminal and then l1 to + of the battery and the other - from the battery to the - on the motor?< Yes, that seems OK..
thanks for the reply the dimmer switch i have is this "hamilton litestat 40-400watt 2way 250v 50hz" most of that is gargen to me but i know you guys undertand! hey im a locksmith im rubiish at electrical! ha ben
am i being really thick could you tell me how to wire it up do i put the c end conneted to the motor terminal and then l1 to + of the battery and the other - from the battery to the - on the motor?< Yes, that seems OK.. That doesnt work it dont buzz or make a sound it dont do anything!? i guess it must be the dimmer? what about a 12volt dimmer switches? i think they use them on boats or motor homes? do they have a simple 2 core one in one out connections?
I assume you have pushed the button in? It is a 2 way device? And you've turned the control backwards and forwards? And as good measure shorted the 2 wires togethor to make sure the motor/battery loop is OK?
connecting the motor terminals makes the motor turn perfectly i just need it to be varible as he needs to slow it down speed it up etc... test's as follows lol push switch down - rotate fully clock wise and then anti-clockwise push switch down (again) - rotate fully clock wise and then anti-clockwise The motor has no markings on it as suck as ratings its blank but they cell is a 12v .7ah Pb Made in china (what a surprise) have you seen a 12 v dimmer i have done serches but cant locate any?
Then as far as I can tell, the resistance of the light dimmer is too high and therfor the startup current of the motor is probably not avaialable. Too low a current and the motor will not turn.
Think rheostat on the positive line..think 12v drop down voltage.. will the dropped voltage be enough to slow a motor probably not designed to go below 120 RPM in the first place..ie give it 10 v and it will probably stop and buzz.
sorry mr handy man it was suggest to me that was all and i work in a hardware shop so i picked one up (well and paid for it lol) maybe so theres not even a buzz! are 12volt dimmer switches on the market?
the motor was designed to go from 120 rpm max to 15 rpm so its quite a slow turning motor! dont forget its off a walking pace golf trolley. cheers
Oh right a trolley motor..forget the dimmer switch idea it will probably never work..you need a purpose made controller for the application it is being used for.these controllers are heavy duty I would think.