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01-12-2019 #1
For the spindle motor, you need at least a basic SCR drive. Most common are KBIC drives, but you have to be aware the control circuitry is non-isolated, and floats near mains voltage. You can get isolated versions.
IIRC Sprint also do fully isolated SCR drives. If you do a search on RS for "Sprint drive" they have various options.
I've not watched the video, but I'd guess the X-axis motor is simply stalling. It's what happens if you try pushing a stepper motor too hard. Either drop max speed, or drop acceleration.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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04-01-2020 #2
Hello.
I’m creeping towards the finish line on the milling machine conversion and have hit another snag, while trying to find the stall point of the x-axis I managed to cook the ‘single phase RFI filter’. I’m looking for a replacement, but can’t find an exact match. I don’t know much about these, would someone mind advising how to find a suitable replacement please?
Here’s the info on the one I smoked.
Single phase RFI Filter
Type: RS 1010-IDF
10A@40C, 250VAC, 50 - 60Hz
HPF -25C to + 85C
I’ve found this one on eBay, but it’s rated at 14A, will that be an issue?
https://rover.ebay.com/rover/0/0/0?m...2F112625692608
Many thanks. Dan
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05-01-2020 #3
A higher current rating won't be a problem.Its only when you go lower that you have to be careful.
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05-01-2020 #4
Thanks for the help Sterob. Just to confirm, because I really don’t want to buy the wrong thing and trash over a years work. The one on eBay is labelled ‘Mains input’ and ‘inverter’ where the one I have removed from my machine is labelled ‘load’ and ‘line’.
Am I right to assume ‘line’ and ‘mains input’ are the same and ‘inverter’ and ‘line’ are the same? I’ve attached an image of the eBay item I’m referring to.
Dan
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05-01-2020 #5Am I right to assume ‘line’ and ‘mains input’ are the same and ‘inverter’ and ‘line’ are the same? I’ve attached an image of the eBay item I’m referring to...Clive
The more you know, The better you know, How little you know
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