Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 3 of 3
-
30th October 2020, 05:40 AM #1New Members
- Join Date
- Oct 2020
- Location
- Sheffield
- Age
- 80
- Posts
- 1
240v Single Phase wiring diagram for switch to power on dust extractor/ saw start
Hi,
Does anyone have a circuit diagram for a switch system which will power on my dust extractor at the same time as my table saw.
The dust extractor needs to remain powered for around 7 seconds after the saw shuts off.
ADDED BY ADMIN
DISCLAIMER
No liability is accepted by UBeaut or the Wood Working Forum's administrators
or moderators for advice offered by members posting replies
or asking questions regarding electrical work.
We strongly advise contacting a Licensed Tradeperson for all electrical work.WARNING
Information supplied within posts is not to be considered as detailed formal instructions to complete a task.
Members following such information do so at their own risk
-
30th October 2020 05:40 AM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Age
- 2010
- Posts
- Many
-
30th October 2020, 09:00 AM #2.
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 27,793
Where does the 7 seconds come from?
The delay time should be variable as it depends on the cutting process (in your case table saw), the length of the size of the DC and size of the ducting, and effectiveness of the dust ports.
My testing has show that a 2HP DC using 100 mm ducting on a stock TS cabinet and 50 mm ducting on the OH guard simply doesn't collect enough fine dust during most processes so teh delay to clear the fine dust is in the region of 10's of minutes rather than seconds. In this type off circumstance its more sensible to actually leave the DC running until the next time you leave the shed.
Alternatively provide forced ventilation (eg bathroom type exhuast fans - yes fans and one will generally not be enough) which vent outside the workshop constantly clearing the shed of fine dust.
On my set up, 4HP DC with 150mm ducting I don't really need to use any delay but I do use a 2 minute delay.
As for the circuit diagram here is my setup
semi-auto "Delayed off" switch
It uses a variable time capable Omron timer switch. These are quite expensive and I only used this because I managed to pick them up from the side of the road from an AC control panel that was being thrown out.
There are other ways of doing this.
Here is my "auto shop vac start/stop with delay circuit"
Shopvac auto-start adapters?
-
30th October 2020, 12:23 PM #3
Is that Sheffield Tassy or Sheffield England?
Those were the droids I was looking for.
https://autoblastgates.com.au
Similar Threads
-
Forward Reverse Switch for single phase 240v motor
By direwolf in forum ELECTRONICSReplies: 6Last Post: 23rd September 2019, 09:42 PM -
Dust Extractor auto start-on power
By wwf9984 in forum DUST EXTRACTIONReplies: 12Last Post: 15th January 2016, 05:35 PM -
240v single phase to 415v 3 phase conversion
By Oldneweng in forum METALWORK FORUMReplies: 81Last Post: 12th July 2012, 05:58 PM -
Heads-Up: $99 Aldi Auto-Start Power-Tool Dust Extractor
By Batpig in forum DUST EXTRACTIONReplies: 112Last Post: 18th May 2009, 02:02 AM