Coats GTS 70 tire machine motor

[petebob]

When I was working on my multi speed input, I set each step to a percentage that sort of matched that step. I set step 1 to 10%, 2 to 20%, 3 to 30%, etc. Wheni stepped on the pedal and the display showed 30%, I changed the value in step 3 to my desired high speed percentage.

 

[PoorUB]

He used diodes. Checking continuity for each switch position it sounds correct to me.

My understanding is he did not get the diodes to work.

 

[petebob]

My understanding is he did not get the diodes to work.

Oh, I read it as the machine didn't work with the diodes installed. The continuity test seems like they are working, though?

 

[PoorUB]

Oh, I read it as the machine didn't work with the diodes installed. The continuity test seems like they are working, though?

I suspect the diodes should have worked, but there is so little power going through the control wires that perhaps they had too much resistance.

He did post as long as he jumpered S1, S2 one speed worked and S2,S3 the other speed worked with the other control wires disconnected. so it is a control wiring issue. That is why I recommended going wit the DPDT micro switches.

 

[waybel]

My understanding is he did not get the diodes to work.

Diodes did work but it was the same result

 

[waybel]

Oh, I read it as the machine didn't work with the diodes installed. The continuity test seems like they are working, though?

That is correct

 

[waybel]

Well i got it working .I went out and changed the parameters and it was still a no go .I unsoldered the diodes and reversed the 2 of them pointing the cathode side towards S1 and S2 .I put the old parameters in and i couldn't believe it i had 2 speeds and reverse .Thank you so much guys for the help . No way i could have done it without you.

 

[PoorUB]

Good going! I thought the diodes might work but wasn't sure as I had never tried it. I did mention that you might need to flip the diodes from end to end.

 

[petebob]

That's awesome, congratulations!

 

[waybel]

Just curious but could diodes cause any type of issues to the VFD?

 

[PoorUB]

Just curious but could diodes cause any type of issues to the VFD?

Nope! No worries!

 

[dfiler2]

I've been following this thread, good to know you got it working. 30 years ago that would have been a lot of trips to the library to get the right answer if at all.

 

[waybel]

I've been following this thread, good to know you got it working. 30 years ago that would have been a lot of trips to the library to get the right answer if at all.

Very true .Now on to the next issue with it.Think i will create another post