So.... may sound like a joke, but I'm just completing my VFD conversion now. That's what a newborn will do to your hobbies apparently
Anyhow, I've done the bulk of the conversion and I have it working 75%
I have a defective jog direction button that I need to replace
I have not re-wired the status light yet, I just need to buy a LED light to limit current draw from the 24vdc VFD supply
I am not entirely sure if the "no resume on startup after power loss" works, I need to double check that one
I have not programmed the two speed dynamic braking but I know what to do (thanks to you), and it's only one wire more than my current setup
I dit not have shielded wires on hands, so I went ahead without, that may be the next upgrade down the road...
I have all these things covered and I can't thank you enough for the inputs. Using the schematics has been invaluable. Now that I've wrapped my head around the global logic of the interlocks, I think it is a KISS implementation, nicely done and elegant.
I am just a little confused about the initial settings that need to be done at the VFD for it to run the motor perfectly.
I have the Hitachi WJ200 VFD drive
I have noted down these parameters to run the motor in the 40-80Hz window :
- A003 Base Frequency : 60 Hz
- A004 Maximum Frequency : 80 Hz
- A011 Start Frequency : 40 Hz
- A012 End Frequency : 80 Hz (redundant with A004 ?)
- A082 Automatic Voltage Regulation : 230 VAC
- B012 Motor Current Rating : 5.4 Amps
- H004 Motor Poles Setting : Four Poles
Am I missing anything that should be initialized ?
Also should I / how do I use the "auto-tune" feature ? Is it actually needed to run the motor at it's peak performance ?
Thanks for any input
BTW, the smoothness of the setup is just beyond my expectations. If I had known I would have ordered the lathe with the VFD setup from day 1.