Hi y'all,
my lathe is fitted with a GE VAT2000 vfd (part of the original Fanuc system)and whilst I have read the manual several times I'm still not quite sure how to connect this to the acorn.
Does anyone have experience with this model?
Its the control side of things that has me confused, the output to the motor is already good to go(that is, I haven't fiddled with it)
Any help greatly appreciated!
Experiences with GE vfd's
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HunterStew
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cnckeith
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Re: Experiences with GE vfd's
you'll get more help if you post a link to the VFD users manual and some photos. 
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
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HunterStew
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Re: Experiences with GE vfd's
https://www.manualslib.com/manual/12217 ... t2000.html
This is the manual. Photos to follow when I figure out how to post them
This is the manual. Photos to follow when I figure out how to post them
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Nigelo
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Re: Experiences with GE vfd's
Full manual on this link https://www.inverter.co.uk/applications ... manual.pdf
manualslib online manuals are about as useful as a chocolate welding nozzle
Post photos using the attachments tab after pressing Full Editor & Preview button on the Quick Reply section
manualslib online manuals are about as useful as a chocolate welding nozzle
Post photos using the attachments tab after pressing Full Editor & Preview button on the Quick Reply section
Hope this helps
Nigel
"You can lead a horse to water but you cannot force it to drink"
Nigel
"You can lead a horse to water but you cannot force it to drink"
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HunterStew
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Re: Experiences with GE vfd's
The wires are attached here to many terminals that I can't work out,for the life of me, what they do. Section 2-8 to 2-10 in the manual shows the terminal layout.
If anyone knows how fanuc likes to control speed it would start to make more sense potentially. The original os was fanuc beta
It's a hefty manual! Some very in depth concepts, help needed
Stew
If anyone knows how fanuc likes to control speed it would start to make more sense potentially. The original os was fanuc beta
It's a hefty manual! Some very in depth concepts, help needed
Stew
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dpascucci_support
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Re: Experiences with GE vfd's
Looks like FSV and COM are your 0-10VDC and 1-10VDC COM respectively. RUN is your spin forward, PSI1 is spin reverse by default. Is there anything else on the VFD you plan to control? Are you following any specific Acorn schematic?
Domenic
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When requesting support READ THIS POST first.
Please ALWAYS post a FRESH report.
(We pride ourselves on providing timely solid technical support but, without good information we may not be able to help and/or reply until such information is posted.)
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HunterStew
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Re: Experiences with GE vfd's
Thanks Domenic, I had sort of figured that out about the inputs you mentioned, it's more the parameters in the manual that I'm worried about, also the fact that there is extra wiring going into the control terminal that aren't associated with the standard speed control you have mentioned.
The machine has an electric motor brake and I don't know if the vfd controls when it engages or does the system have a kind of ramp down magnetic field braking to stop the spindle.
Also what voltage does the run/reverse signal want?
Maybe I need to re-read the manual another time or two to get my head around this all.
If only I had taken notes on it's operation when the fanuc system was working, but I wasn't to know it would die on me when it did.
Live and learn I guess.
I have some electrical schematics for the control box layout but I'll need to get a buddy to check that I have decifered them properly before installing the acorn and powering it up.
Thanks again
The machine has an electric motor brake and I don't know if the vfd controls when it engages or does the system have a kind of ramp down magnetic field braking to stop the spindle.
Also what voltage does the run/reverse signal want?
Maybe I need to re-read the manual another time or two to get my head around this all.
If only I had taken notes on it's operation when the fanuc system was working, but I wasn't to know it would die on me when it did.
Live and learn I guess.
I have some electrical schematics for the control box layout but I'll need to get a buddy to check that I have decifered them properly before installing the acorn and powering it up.
Thanks again