Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: jk999 on January 13, 2015, 06:19:53 pm

Title: controller switch
Post by: jk999 on January 13, 2015, 06:19:53 pm

I want to make my own controller and would like help with the name off the speed controller switch to turn pump up and down . Im running 100 psi pump so amp off the switch needs to be over ten amps . Any idea off websites to get the controller switches from , any help would be much appreciated cheers kev

Title: Re: controller switch
Post by: Smudger on January 13, 2015, 06:28:11 pm

You know you can get a controller from about 35 quid off ebay ?

Anyway, I think if you search pigeon shooting or similar on eBay some switches come up that control the current so the more you turn it the higher the current the faster things go.  I got a couple when trying to make a motorised reel

Darran

Title: Re: controller switch
Post by: Susan Dean (1stclean) on January 13, 2015, 06:36:38 pm

get a standed one from polar bight there very good I know I few lads that wont use anything else

Title: Re: controller switch
Post by: jk999 on January 13, 2015, 07:05:05 pm

Just looked at the polar brite ones dont look bad for price

Title: Re: controller switch
Post by: Smudger on January 13, 2015, 07:53:07 pm

http://www.ebay.co.uk/itm/10A-12V-40V-Pulse-Width-Modulation-PWM-DC-Motor-Speed-Control-Switch-UK-STOCK-/251581499581?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item3a936d08bd

http://www.ebay.co.uk/itm/NEW-SafeFlow-Pump-Controller-Water-fed-pole-window-cleaning-wfp-Trolley-/181636013901?pt=LH_DefaultDomain_3&hash=item2a4a599f4d

Title: Re: controller switch
Post by: richard groves on January 13, 2015, 07:58:49 pm

or this one

http://www.ebay.co.uk/itm/12v-Digital-Speed-Controller-complete-with-switch-and-PWM-Wfp-van-mount-/231447984589?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item35e35ff9cd

Title: Re: controller switch
Post by: jk999 on January 13, 2015, 08:30:11 pm

Cheers guys

Title: Re: controller switch
Post by: Ian Sheppard on January 14, 2015, 10:59:02 am

There is a wide range of electronic controllers starting with basic voltage regulators through to better units that use PWM pulse wave modulation to vary the pump speed.

PWM (pulse wave modulation ) as opposed to a voltage regulator.( a voltage regulator sends a fixed amount of volts continuously )
PWM allows the controller to manage the pump in a different way.
We are now sending a series of pulses (waves ) Think of a castle rampart The wave form in this case is square.
PWM in effect is switching the pump on/off many 1000s of times a second by adjust the time between the wave we can alter the speed of the pump

What is the difference ?? Well if you ever played with an electric train

You will notice it is hard to slow a train to stop exactly at a station or unloading platform that is wanted.
Because a plain voltage control, lowers the power at the same time as it lowers the speed.
The train will stall and jog as you play with the control.

However with PWM every pulse activates the full power of the motor. This kind of speed control allows the train to smoothly creep into every station position stop no matter the number cars attached.And put on a smooth un-jerked train start as the control is increased.

Which ever type of control you go for ensure the corrected rated cable and fuse is used during the install and it is worth placing the cable into conduit to protect it from wear and tear.

Title: Re: controller switch
Post by: jk999 on January 14, 2015, 05:56:53 pm

 :o :o :owow

Title: Re: controller switch
Post by: mufcglen on January 14, 2015, 06:18:19 pm

those polar bright controllers look nice although you could knock one up for around £10-15!

Title: Re: controller switch
Post by: jk999 on January 14, 2015, 08:17:36 pm

Priced up parts it's around fifteen pounds . That includes  a digital  voltage  meter