PM 3520B error code F132

[Sam Force]

Need some help with my PM, had the potentiometer go bad. I replaced it as a terminal had broke off. After putting in a new pot the lathe will not run. Inverter says F132, I've looked at Doc Green's website and several others but nothing leads me to a fix. Any suggestions?

[Robert Hayward]

Have you searched the manual for your VFD? My 3520b uses a Delta VFD model VFD015S21U. The manual for this VFD is online.

[Sam Force]

496263I have not searched for that manual, mine has the same VFD I will look for it. I found this wiring diagram and I believe the wiring to be correct

Thanks, Sam

[Robert Hayward]

If you do not have any luck with the manual a call to Delta Group Electronics might help. Even though it is a discontinued product someone there might have an answer.

[Richard Coers]

I looked at the manual on line, and it doesn't list that code.

[Sam Force]

This is what the VFD shows

496275

[John K Jordan]

Need some help with my PM, had the potentiometer go bad. I replaced it as a terminal had broke off. After putting in a new pot the lathe will not run. Inverter says F132, I've looked at Doc Green's website and several others but nothing leads me to a fix. Any suggestions?

I thought the "Fxxx" code was not an error code but the master frequency (section 4.3 in the Delta VFD-S manual for the S1). Is that frequency somehow out of range preventing the vfd from working? (I'm not where I can look at mine and see what the speed range is.)

After the terminal on the pot broke did you get any code on the back? Is the pot the same size and resistance? Does the pot work correctly, measured with an ohm meter?

I'd probably start by carefully tracing the wiring, look for shorts, etc., measure the voltage. The voltage should change at the right terminal as you rotate the pot. I think the voltage between the pot wiper and control voltage input legs (and also at the proper terminals in the vfd) for that lathe should change from 0 to 10v as it is turned. Be careful, the control voltage is 10v DC but of course there is 220v AC present in the vfd.

JKJ

[Sam Force]

Getting over my head now, I did not think to check the VFD prior to it not working. The pot is actually 1 a friend had on hand that he had for a Grizzly G0766 3 hp lathe. The PM potentiometer is on back order with no expected by date

[Robert Hayward]

Almost guaranteed you have the wrong value pot installed and that is your problem. You should not need a pot from Powermatic but you will need one with the correct values. Once you know the correct values for the pot you should be able to get one at any electronic parts supplier. Mouser and Digikey are two big suppliers.

[Sam Force]

How to determine the pot values? Where would I begin to look?

[Robert Hayward]

Do you still have the old one? If so there may be a product number and brand on it. Post a picture for us to see.

[Robert Hayward]

Here is a shot of the pot in my 3520b. Here (https://www.amazon.com/RV24YN20S-Potentiometer-Inverter-Regulation-Control/dp/B074KCK7X9/ref=asc_df_B0795R7PXZ/?tag=hyprod-20&linkCode=df0&hvadid=312252979189&hvpos=&hvnetw=g&hvrand=16133478640961250350&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9012389&hvtargid=pla-571466559318&th=1) is a link to the pot in my 3520b.

Note that this model pot comes in various ohms. My original is a B502 indicating a 5k ohm pot. I am guessing your original was the same as mine as you have the same VFD.

[Sam Force]

The only difference is mine says 078C. All the others numbers are exact.
I really appreciate your help with this, we have a local electrical supply shop I will be visiting tomorrow

[Sam Force]

https://www.amazon.com/s?k=Rv24yn205&crid=XD3QFB069Y8F&sprefix=rv24yn205%2Caps%2C153&ref=nb_sb_noss


What is your opinion on these? They would maybe get me by if I could not find locally

[Robert Hayward]

I provided a link for you to click in my response above. Click the word "Here" in my response above that contains the picture of my pot.

[John K Jordan]

I provided a link for you to click in my response above. Click the word "Here" in my response above that contains the picture of my pot.

Thanks Robert! I missed that on 1st reading. I’m going to save your link, or better yet, order a spare pot now in case the one on my lathe dies some day.

BTW, a pet peeve: a link, at least on the iPad I use with tiny text, is a light blue, low contrast againsta white background and easy to miss for my aging eyes! Does anyone know if that’s a system setting, browser default, changeable?

I sometimes wish link text was bright bold flashing purple with yellow background. :)
Some formatting experiments, stealing your link coding:

This (https://www.amazon.com/RV24YN20S-Potentiometer-Inverter-Regulation-Control/dp/B074KCK7X9/ref=asc_df_B0795R7PXZ/?tag=hyprod-20&linkCode=df0&hvadid=312252979189&hvpos=&hvnetw=g&hvrand=16133478640961250350&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9012389&hvtargid=pla-571466559318&th=1) is a link to a web page.

THIS is a link (https://www.amazon.com/RV24YN20S-Potentiometer-Inverter-Regulation-Control/dp/B074KCK7X9/ref=asc_df_B0795R7PXZ/?tag=hyprod-20&linkCode=df0&hvadid=312252979189&hvpos=&hvnetw=g&hvrand=16133478640961250350&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9012389&hvtargid=pla-571466559318&th=1) to a web page.

This (https://www.amazon.com/RV24YN20S-Potentiometer-Inverter-Regulation-Control/dp/B074KCK7X9/ref=asc_df_B0795R7PXZ/?tag=hyprod-20&linkCode=df0&hvadid=312252979189&hvpos=&hvnetw=g&hvrand=16133478640961250350&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9012389&hvtargid=pla-571466559318&th=1) is a link to a web page. (default text color)

JKJ

[Robert Hayward]

BTW, a pet peeve: a link, at least on the iPad I use with tiny text, is a light blue, low contrast against a white background and easy to miss JKJ
I agree 100%. The condition is not specific to an Ipad. The almost impossible to distinguish link also occurs on my generic PC. Most times I have to hover my cursor over the text to see is a link is hidden within.

[Sam Force]

Sorry, I did not notice that link. Maybe because of the tears in my eyes as my lathe sits idle. Thanks again

[John K Jordan]

… because of the tears in my eyes as my lathe sits idle.

That’s so sad!! That’s my reason #4 to have a second lathe in the shop. :)

[Sam Force]

I actually have and older Delta lathe and a small Nova lathe but my Powermatic is my baby!!

[Brice Rogers]

The pot for the G0766 is a 10K pot.

But (and I'm a degreed electronic engineer) I kind of doubt that a 10K would act differently than a 5K. On the Griz (and probably on the PM) there is 10 volts on the "top" of the pot and the wiper is providing a voltage from 0 to 10 volts to tell the controller what speed to run at.

If I were you I'd check that one side of the pot is zero volts, the other end 10 volts and the middle one (the wiper) varies from zero to 10 v. That would confirm whether you wired the new pot correctly.

[Sam Force]

Got the new pot installed today, can get the numbers to run on the vfd but nothing happens on the motor. Checked all the wiring for the 15th time and everything is as it should be. Put in a service request to powermatic and will call delta no clue what to do and no local powermatic repair shop. I should at the vfd goes from F 00 to F 138 as I turn the potentiometer so I believe it to be working

[Rob Damon]

I have this lathe.
Went to PM site and looked at part number from dowloaded manual.

Did a bing search for the VFD catalog number vfd015s21u (no longer available) but it gave link to manual:

https://www.automatedpt.com/wp-content/uploads/2012/06/VFD-S-User-Manual.pdf

It's 185 pages.

Here is the recommended replacement model from the website for single phase input voltage:

https://deltaacdrives.com/delta-ms300-VFD7A5MS21ANSAA/

[Sam Force]

I was hoping not to have to replace the vfd, prior to potentiometer going bad it worked fine. I think it still should work but so far it is not.

[John K Jordan]

I was hoping not to have to replace the vfd, prior to potentiometer going bad it worked fine. I think it still should work but so far it is not.

Is the vfd putting out 3-phase power to the motor? (Be very careful checking, maybe get some help if not comfortable with such wiring.)

[Sam Force]

This is above my skill level, will try to get a motor shop to look at it. A man has to know his limitations