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  #421  
Old Wed 15 August 2018, 18:42
lonestaral
Just call me: Al #114
 
Isarn
Thailand
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I do not have an RS 484 port.
Attaches is a picture of the board that I have.
Will this work with the inverter?
Attached Images
File Type: jpg rsz_1tb6560.jpg (36.4 KB, 218 views)
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  #422  
Old Wed 15 August 2018, 19:01
bradm
Just call me: Brad #10
 
Somerville(MA)
United States of America
Looks like it will work, it should be a bit tricky.

On the inputs, I've generally wired to the first and third. Make sure you're over-rated on the inputs by 2/3.

On the spindle output, you definitely should not try any form of switching between the VFD and spindle. That would break things in ugly ways.

You mentioned that you might want to place a relay there. You would place the relay so that it controlled the forward speed selector on the input to the VFD.

Looking at that board, and at https://www.manualslib.com/manual/12...page=12#manual it appears that there is a 0-10V output to control the speed. That would be wired to the corresponding input on the VFD.
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  #423  
Old Wed 15 August 2018, 21:26
pblackburn
Just call me: Pete #98
 
South-Central Pennsylvania
United States of America
You only need a serial to rs485 converter then run a serial cable from PC to the converter and the converter to the 485 on the vfd
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  #424  
Old Wed 15 August 2018, 23:05
lonestaral
Just call me: Al #114
 
Isarn
Thailand
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Thank you Paul.
I will look into that.

About the earthing.
I have an earth from the machine frame to a spike in the garden.
Can I earth the VFD to the frame or should I run out a separate earth wire?
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  #425  
Old Thu 16 August 2018, 04:26
pblackburn
Just call me: Pete #98
 
South-Central Pennsylvania
United States of America
Straight to earth ground only needed if you experience EMI interference.
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  #426  
Old Sat 18 August 2018, 03:41
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
I got power to the VFD.
Parameters set.
Coolant pump and tank installed and working.
Probably Monday for VFD to spindle.
The fog is slowly clearing
RS485 on order.

Last edited by lonestaral; Sat 18 August 2018 at 03:43.. Reason: RS485
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  #427  
Old Sat 18 August 2018, 05:05
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Al,

Sounds good. Thanks for sharing your new venture.
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  #428  
Old Mon 20 August 2018, 05:10
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
VFD and spindle wired and rotating.
Onward to the next job
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  #429  
Old Mon 20 August 2018, 05:51
pblackburn
Just call me: Pete #98
 
South-Central Pennsylvania
United States of America
Awesome
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  #430  
Old Fri 24 August 2018, 23:21
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
Bracket modified, drilled, tapped and painted.
Z slide drilled and painted. (Yellow, sorry)
Spindle mounted.
Cable and pipes routed through energy chain.
More to do yet.
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  #431  
Old Sat 01 September 2018, 02:23
lonestaral
Just call me: Al #114
 
Isarn
Thailand
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Well it works.
Under manual speed until the RS adapter arrives.
Still a few wires to tidy up.
Glad that job is done.
Taken a few years to get there.

Lots of information in the instruction manual but hard to understand.
It doesn't tell you how to do things, just information.

Machined some wood to thickness, will run a job tomorrow.

I would like to get Pathpilot to run but I am stuck on the pin settings.
It keeps rejecting mine.
One job at a time.
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  #432  
Old Mon 03 September 2018, 05:13
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Nice!

Sorry, I have no experience with Pathpilot.
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  #433  
Old Tue 11 September 2018, 23:46
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
I have a problem that I need some help with.
It might be electrical noise.

Sometimes when the spindle starts or stops the Yaxis jumps.
More often it is when it stops (the very last 1/10 second).
On occasion the spindle will growl on start up

The X and Z are fine.

I put in a separate earth on the VFD, also it is on a separate circuit breaker.
The separate circuit helped but it is still not right.

I don't know what to try next.
Any ideas ?
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  #434  
Old Wed 12 September 2018, 09:53
digger
Just call me: Milosh #113
 
Toronto
Canada
Make sure you have RF chokes installed at the output of the VFD. VFDs are big source of RF interference. I removed RF chokes/toroid cores from some old scrap monitors. You will see them as a thick piece of plastic over the monitor supply cable or connection cable. Remove them from there and slide your wires (the one which go to the spindle). If there is a room you can winde a few turns as well. Install it at the VFD side. This should prevent RFI.

Milosh
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  #435  
Old Thu 13 September 2018, 00:06
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
Thanks Digger.
I found 3 of different sizes on old cables.
Put one on each of the VFD output wires.
It made no difference.
Will have to see if I can find bigger chokes.
Perhaps more than one per cable is needed.
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  #436  
Old Thu 13 September 2018, 05:56
digger
Just call me: Milosh #113
 
Toronto
Canada
If the hole is big enough, try to run some turns. More turns, more inductance. Also, it may help if you try to physically separate spindle cable from other cables.
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  #437  
Old Sat 15 September 2018, 02:55
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
Thanks again Digger.
I removed the spindle cable from the energy chain.
Now it works
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  #438  
Old Sat 15 September 2018, 06:29
digger
Just call me: Milosh #113
 
Toronto
Canada
No problem. Glad it worked.
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  #439  
Old Sat 15 September 2018, 07:47
racedirector
Just call me: Bruce #122
 
New South Wales
Australia
What sort of cable are you using for your VFD to spindle? I run mine in my chain with everything else and have never had a problem. My cable is shielded VFD cable.
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  #440  
Old Sat 15 September 2018, 08:08
digger
Just call me: Milosh #113
 
Toronto
Canada
It is shielded and shield is grounded at vfd side.
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  #441  
Old Sun 16 September 2018, 16:47
bradm
Just call me: Brad #10
 
Somerville(MA)
United States of America
That sounds to me like you are getting spindle noise transferred into your Y axis motor cable. If it were transferring to your limit switches, you should see that in the software effect. It might be as simple as keeping the spindle cable to one side of the echain, and the other cables to the other - a few zip ties.
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  #442  
Old Sun 16 September 2018, 19:21
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
The problem was that the spindle cable was not properly shielded.
Now that I have separated it from the others it works.
It will do until I can find some proper cable.
Very difficult to find around here.
The RS adapter has arrived, so more wires to play with.
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  #443  
Old Mon 17 September 2018, 03:49
racedirector
Just call me: Bruce #122
 
New South Wales
Australia
Heres where I got mine from, been brilliant and no interference at all. It runs in my chain with everything else. Very cost effective too....

https://www.homanndesigns.com/index....r0u074a976a7b3
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