PDA

View Full Version : FRO/SSO Potentiometer recommendations?



m_c
25-04-2017, 01:31 AM
Has anybody got any potentiometer recommendations for Feed Rate / Spindle Speed overrides?

It's not that I can't find any potentiometers that's the problem, it's the fact I can find too many, so I'm hoping somebody has a suggestion or two. I'm ideally looking for something a bit more industrial, that can take a knock or two.

Ger21
25-04-2017, 04:38 AM
Look at the manufacturers of pushbuttons, and they'll often have matching pots, like these.
https://www.automationdirect.com/adc/Shopping/Catalog/Pushbuttons_-z-_Switches_-z-_Indicators/22mm_Metal/Potentiometers/ECX2300-5K

john swift
26-04-2017, 12:18 AM
Hi m_c

Are you looking for a replacement for an existing control or are you building your own control panel ?

if you go to RS Components for example
http://uk.rs-online.com/web/c/passive-components/variable-resistors/potentiometers/?searchTerm=potentiometers

use the filters on the left hand side of the page

select
the maximum resistance
the number of turns - one or multi turn
type - linear
mounting type - bush mount
shaft diameter - 1/4" or 6mm
element type - Cermet or wire wound

etc
by the time you have selected
the options you require
you will of reduce the 1500 potentiometrs down to half a dozen at most

as an example if your looking for a single turn linear 5K potentiometer
is this what your looking for ?
http://uk.rs-online.com/web/p/potentiometers/8509514/

for alternative UK suppliers
try Rapidonline.com or uk.farnell.com


John

m_c
26-04-2017, 01:11 AM
Thanks for the suggestions. This is for a new panel.

I was looking for something like what Ger linked to, but they're bit too expensive to get anything like that in the UK. A bit searching of RS has yielded 502-8637, which is listed as suitable for industrial controls. That's a 10K version, but I may go for a 5K.
I still need to work out the finer details of wiring the panel, but at least I now have the basic components.

Clive S
08-05-2017, 10:08 AM
Thanks for the suggestions. This is for a new panel.

I was looking for something like what Ger linked to, but they're bit too expensive to get anything like that in the UK. A bit searching of RS has yielded 502-8637, which is listed as suitable for industrial controls. That's a 10K version, but I may go for a 5K.
I still need to work out the finer details of wiring the panel, but at least I now have the basic components.

I have spotted this if it helps 10K Ohm, Single Turn, Panel Mount Speed Pot

https://www.motorcontrolwarehouse.co.uk/enclosure-accessories/speed-potentiometer.html