Configuring VFD to control 3 phase motor (Eurotherm Drives 601)
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- Опубликовано: 9 фев 2025
- A video to show some of the configuration parameters available on this variable frequency drive, or VFD. The VFD is being run in local mode as I am currently rewiring a new remote control panel.
Thanks was very useful
Glad it helped
I have a stubby wood lathe and recently replaced vfd with the 601 you show in this very excellent video. It works nicely except for two minor issues. First is that at the lowest speeds, it jerks. As I increase speed, it becomes smooth. Second issue is that when I apply moderate pressure with my tools, I can actually slow and stop the lathe. When I release the pressure, it again ramps up to full speed. I am having a terrible time trying to determine if I could adjust the parameters to fix these issues. Any advice you might have would be appreciated. My settings, as recommended by lathe manufacturer are: P1-0, P2-110, P3-4, P4-4, P5-150%, P6-8%, P7-50/60HZ--The rest are all factory default.
Firstly, do you have the user manual? I would rate this as essential reading and you can download a copy at www.elektro-trading.com.pl/pdf/napedyac/601/HA464518.pdf What is the exact model number of your VFD? You can find details regarding the product code in chapter 3-1 of the manual. Is your motor new / old and can you list any of the motor parameters / specification?
P1-0 sets the minimum speed (frequency, actually) to 0 Hz which of course would leave your motor stationary. I found it useful to set the minimum speed to something higher to ensure the motor turned over and did not overheat. I'm not sure of the exact value but can check tomorrow if you are interested. Probably something like 10%. Bear in mind there is no feedback loop to ensure the motor turns, so at low Hz the motor may stall easily.
P2-110 sets the VFD maximum speed to 110 Hz. I have a 50 Hz 3 phase motor (probably made before VFDs were widely used) and so I set this parameter to 50 Hz. Is your motor okay at this relatively high frequency? I wonder if torque suffers and therefore causes the problems you are experiencing.
P3-4 sets the ramp up time to 4 seconds - seems okay to me.
P5-150% sets the current limit to 150%. The default value is 100% and that is probably what I am using as I like to be conservative. Once again, I can check if you are interested.
P6-8% sets the voltage boost to 8% (default is 5%) but this is not a parameter I have tried changing. I doubt the 3% difference will be noticeable anyway.
P7-50/60Hz - I chose 50 Hz to match my motor and you may wish to do the same. Are you in a country with 50 Hz or 60 Hz being the predominant mains frequency?
You mention jerky movement at the lowest speeds - what sort of speed are you referring to?
Good afternoon! Tell me, does it have a timer? To turn on the mixer, and it will turn itself off after a certain time. Can you use the up and down buttons to control the speed?
Thank you!
No timer that I am aware of. Speed can be controlled via the keypad.
have an 'ot' or 'oc' error.. write on display
OT = over temperature. OC = over current. See page 25 of the manual for possible causes.