ITS / Pot Box.

[jonequest]

Originally Posted by pggroves

No moving parts in an ITS ????

The superior part of the ITS is that there is no real friction or wear. The piston rod moves back and forth within the feild coil but does not touch it so there is nothing to wear out. In a potentiometer there is a copper wiper running across a carbon coated board that will eventually wear out.

[yurtle]

Originally Posted by pggroves

No moving parts in an ITS ????

OK. You got me. No electric wipers. The iron core doesn't touch the electric circuit in any way, shape or form.

Think of this from an electron's perspective.

[Andy4639]

I have seen ITS switches that rub the sides of the switch and still work. I've even bent the pedal rod to make them go inside the ITS and they run.
How does somene bend that rod is what I want to know.
Also the ITS is slower responding than a pot.

[simple man]

Originally Posted by Andy4639

I have seen ITS switches that rub the sides of the switch and still work. I've even bent the pedal rod to make them go inside the ITS and they run.
How does somene bend that rod is what I want to know.
Also the ITS is slower responding than a pot.

Get an old rusty beach cart and you'll see the rod bend! In fact, the whole pedal box assembly can rot right off of the frame!!!

The ITS coil I'm using now had the rod bent + the potting material has a big crack in it. It still works fine! I honestly don't know what would ever cause one to go bad, unless the controller shorted out in the low current section.

[JohnnieB]

Originally Posted by Andy4639

..........Also the ITS is slower responding than a pot..........

Maybe, but it would be measured in milliseconds.
I suspect that any discernible difference would be in the turn-on ramp rate programmed into the controllers, but I might be wrong.

@ simple man:
Yes, switching the + & - leads will change of from a 0-5K to a 5K-0 pot, just make sure the center lead is the wiper.
(Don't ask how I know, or how much smoke I've released when I didn't check.)

@ yurtle:
I'm with you on this, but I think there might be some mechanical or other outside issues obscuring the electrical superiority of the ITS.
I can't remember ever having to replace a noisy inductive sensor or Hall Effect device, but I've cleaned or replaced hundreds, if not thousands, noisy pots.
Might even be EMI problems. Controllers are PWM devices and if some carts generate enough electrical noise to interfere with some radios, there might be enough EMI to induce some noise in an ITS.
I think I'll wrap my ITS box in copper screen and hang a discharge strap on it.

[simple man]

Originally Posted by JohnnieB

Maybe, but it would be measured in milliseconds.
I suspect that any discernible difference would be in the turn-on ramp rate programmed into the controllers, but I might be wrong.

@ simple man:
Yes, switching the + & - leads will change of from a 0-5K to a 5K-0 pot, just make sure the center lead is the wiper.
(Don't ask how I know, or how much smoke I've released when I didn't check.)

@ yurtle:
I'm with you on this, but I think there might be some mechanical or other outside issues obscuring the electrical superiority of the ITS.
I can't remember ever having to replace a noisy inductive sensor or Hall Effect device, but I've cleaned or replaced hundreds, if not thousands, noisy pots.
Might even be EMI problems. Controllers are PWM devices and if some carts generate enough electrical noise to interfere with some radios, there might be enough EMI to induce some noise in an ITS.
I think I'll wrap my ITS box in copper screen and hang a discharge strap on it.

That seems to attract lightning!

[JohnnieB]

Originally Posted by simple man

That seems to attract lightning!

So does my Tinfoil Hat.

[simple man]

Originally Posted by JohnnieB

So does my Tinfoil Hat.

Oh, for sure!
Definitely don't mix the hat and the strap, that's sure to create disaster!

[scottyb]

I think the bottom line here is in your username ......

Either throttle input will work for 99% of the carts and do a comparable job. As noted the pot has more moving parts and is more likely to wear with use or corrode/rust or otherwise fail with age, all pots do. I have seen plenty of 20yr old units still in service ( I'm talking golf carts, now) In conclusion...... considering the beast of a cart you have... I think whatever you have on hand that talks to whatever controller you have will work just fine
I don't mean to be a smartass but it seems amusing to tell you to keep it simple, man

[Andy4639]

Originally Posted by simple man

Get an old rusty beach cart and you'll see the rod bend! In fact, the whole pedal box assembly can rot right off of the frame!!!

The ITS coil I'm using now had the rod bent + the potting material has a big crack in it. It still works fine! I honestly don't know what would ever cause one to go bad, unless the controller shorted out in the low current section.

I have bought my share of beach carts. I have 2 of my own there now. I have 1 there I just bought last weekend.