Picture(s) thanks: 0
Results 1 to 10 of 10
Thread: Vfd remote switches.
-
28th May 2019, 08:08 PM #1Most Valued Member
- Join Date
- Jul 2006
- Location
- Athelstone, SA 5076
- Posts
- 4,258
Vfd remote switches.
Can anyone advise what type of remote pushbutton switches are required in lieu of keypad. I am aware i will need to program the vsd.
Are the switches spring return to NO or NC as required.
-
28th May 2019, 09:20 PM #2Philomath in training
- Join Date
- Oct 2011
- Location
- Norwood-ish, Adelaide
- Age
- 59
- Posts
- 6,563
Your VFD instructions should have a schematic, but from memory (always dicey) it is NC for stop and NO for start. That way if a wire is cut it fails safe.
You could probably wire up a rotary switch to do the same thing if you don't have/ like spring return switches
Michael
-
28th May 2019, 09:24 PM #3Most Valued Member
- Join Date
- Jul 2006
- Location
- Athelstone, SA 5076
- Posts
- 4,258
[QUOTE=Michael G;1951211]Your VFD instructions should have a schematic, but from memory (always dicey) it is NC for stop and NO for start. That way if a wire is cut it fails safe.
You could probably wire up a rotary switch to do the same thing if you don't have/ like spring return switches
Michael[
I know that bit Michael....but what type of switch action...they aint self latching are they ie not like a light switch?
You can use either self latching or momentary but they are wired slightly differently, it should be shown in your manual.
I prefer to use self latching so the switch position is obvious that the machine should be on/off/reverse.
Momentary switches often leave me wondering what state is what and if I used them I always add an indicator light
-
28th May 2019, 09:43 PM #4Philomath in training
- Join Date
- Oct 2011
- Location
- Norwood-ish, Adelaide
- Age
- 59
- Posts
- 6,563
I have momentary contacts on all mine - the stop is usually a twist to release arrangement but still wired in as momentary. I can understand the need for alight when something is energised but may not be running, but for a VFD directly coupled to a motor, there is probably no need - the motor is either running or not. Easy to see.
Michael
-
1st Jun 2019, 03:51 PM #5Most Valued Member
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 3,228
My drill press has a rotating ON-OFF switch.
Chris
-
3rd Jun 2019, 12:09 AM #6Golden Member
- Join Date
- Dec 2007
- Location
- Adelaide
- Posts
- 575
It may depend on your vfd, both of my HY vfd's work with regular switches like you basic toggle or micro switch - they are not the momentary type. This allowed me to use the apron mounted lever and it's associated micro switch to stop and start the lathe. The jog button is the momentary type where the motor runs only while the button is depressed.
-
6th Jun 2019, 03:20 AM #7
Rotary Switch
I chose to take my Colchester Bantam off the standard pedestals and mount it on a very sturdy bench.
As I wanted to operate it by using the apron control lever, I had to replace the switch gear with a latching rotary switch.
The control linkage took a bit of work.
I expect I may have to modify the control lever in the future to allow for wear.
I also added a digital readout and Potentiometer, this makes it nicer to use.
It was all done successfully and is a joy to operate.
WARNING if you need to take one of these switches apart wrap insulation tape around the rear section before doing so, you can guess why.
MarkI've become a tool of my tools.
-
6th Jun 2019, 08:53 AM #8Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,189
-
7th Jun 2019, 01:25 PM #9Golden Member
- Join Date
- Jul 2011
- Location
- Adelaide
- Posts
- 837
-
8th Jun 2019, 11:22 AM #10
colchester
Eric the Bantam came with a single speed 1400 rpm motor, I have replaced it with a 2800 rpm 1.5 hp 3 phase motor.
Tony's Lathes UK site says the lathe was exactly the same as the 2 speed one, but with a single speed motor.
The pretty finish is the result of spent plenty of time preparing and spray painting it all during the rebuild.
MarkI've become a tool of my tools.
Similar Threads
-
Auxilary changeover switches and so forth.
By .RC. in forum ELECTRICALSReplies: 6Last Post: 25th Apr 2019, 10:41 PM -
Fitting remote stop switches to PowTran PI-160
By peterbilt in forum ELECTRICALSReplies: 11Last Post: 19th Aug 2018, 09:19 PM -
Hall Effect Limit Switches
By Sterob in forum CNC ForumReplies: 19Last Post: 2nd Oct 2016, 10:41 PM -
VFD Remote Cable
By Oldneweng in forum METALWORK GENERALReplies: 18Last Post: 14th May 2014, 07:39 AM -
CNC Mill Limit Switches
By electrosteam in forum METALWORK GENERALReplies: 8Last Post: 10th Sep 2010, 07:31 PM