I've put a Teco VFD on a 9B South Bend and just acquired a Kondia FV-1 mill that I put a 3hp Huanyang VFD on. The mill motor is 1.5HP.
The clutch clatters and I'm trying to avoid using backgears ( in fact I removed the cam ring on top of the head) so I need to deal with torque and hp issues at low rpm. At the lowest high gear pulley setting the 1800 rpm motor turns the spindle at 685 rpm. I occasionally need as low as 100rpm so that would mean running the VFD down to about 10hz. There are a huge number of seetings with regard to auto torque compensation , various curve set points,etc. I need to understand what the key ones to set are and what the gotchas are.
Of course the manuals are minimal and assume you know all the theory and rightfully so, but I don't. Where can I get smart on this technical parameter decision making? thx
I've put a remote box on it to control run, stop, forward, reverse and speed. The VFD will display rotation in rpm's based on the motor rating of 1800 rpm. what I's like to do is apply a factor to that so that it reads the correct spindle speed based on what pulley I have it set on. I can't find a parameter for this in the list. I was thinking I could just tell it that the 60hz rated motor speed was 685 ( top pulley position) and it would then read spindle rpm correctly. However I'm worried that messing with that parameter will screw up some other programming. any ideas?
The clutch clatters and I'm trying to avoid using backgears ( in fact I removed the cam ring on top of the head) so I need to deal with torque and hp issues at low rpm. At the lowest high gear pulley setting the 1800 rpm motor turns the spindle at 685 rpm. I occasionally need as low as 100rpm so that would mean running the VFD down to about 10hz. There are a huge number of seetings with regard to auto torque compensation , various curve set points,etc. I need to understand what the key ones to set are and what the gotchas are.
Of course the manuals are minimal and assume you know all the theory and rightfully so, but I don't. Where can I get smart on this technical parameter decision making? thx
I've put a remote box on it to control run, stop, forward, reverse and speed. The VFD will display rotation in rpm's based on the motor rating of 1800 rpm. what I's like to do is apply a factor to that so that it reads the correct spindle speed based on what pulley I have it set on. I can't find a parameter for this in the list. I was thinking I could just tell it that the 60hz rated motor speed was 685 ( top pulley position) and it would then read spindle rpm correctly. However I'm worried that messing with that parameter will screw up some other programming. any ideas?