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- Mar 26, 2018
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Thank you marcardoso I can't believe it my self I am still pinching my self..... VFD can be had for cheap you have my attention, marcardoso can you give me some links? so i can start my research. thank you very much
So you’ll want a basic VFD probably just with analog speed input and start stop (you’ll wire a potentiometer and two momentary push buttons). You can use the knob and buttons on the VFD but they aren’t the most robust.
The first type and cheapest is a V/Hz drive. That basically ramps voltage and frequency together. Honestly this is good enough. If you want better torque at the low end (skip the back gear) you’ll be looking at a sensorless vector (SVC) drive.
Automation Direct has nice products for low prices. Sure you can find cheap Chinese VFD’s on eBay for less but the manual being in plain English is easily worth any price difference. Let’s assume a 1HP motor (idk what yours is) for a V/HZ drive you’re looking at https://www.automationdirect.com/ad...l)/GS1_Drive_Units_(120_-z-_230_VAC)/GS1-21P0 for $134. To jump to SVC you would get https://www.automationdirect.com/ad...S3_Drive_Units_(230_-z-_460_VAC_SLV)/GS3-21P0 for $242.
I’m not affiliated with them but have had great success using their products in the past.
If you use big cutters and want more stable speed in high torque cuts get the SVC.
An example of a cheap Chinese one: https://m.ebay.com/itm/HuanYang-VSD...170069&hash=item3f4f27f0ec:g:8bIAAOSwLgtZi~7-
I’ve seen plenty of tutorials for people hooking these up.
If you want name brand, Allen Bradley PowerFlex, Teco, Delta, Lenze, Hitachi, Panasonic all make nice drives. Expect to pay more though.
-Mike