mwpfeifer
12-11-2012, 09:19 AM
I downloaded the latest version of the SB control software (3.6.44), ran the setup routine and updated the firmware and now software control of my Yaskawa VFD is really strange. When I run the C5 warm-up routine the RPM window on the VFD reads 5.6 when the TR, 9000 command line is active (spindle was obviously running much slower than 9000) at the TR, 10000 command line the VFD reads 6.0 and at the 12000 command line it reads 7.2, however, the spindle RPM window on the monitor screen reads 9000, 10000, and 12000 respectively and the spindle is running at approximately half the commanded speed. Also the “Open with SB3” line is set to “1” under the TR command, however, the spindle is not turning on, have to hit “run” on the VFD.
When I input a specific RPM into the window on the monitor and hit return the spindle responds but runs much slower. If I input 17000 the VFD shows 10.2 and appears to run at that RPM. Entering 22000
results in a VFD display of 13.2 and entering 30000 results in the display showing 18.0. It is pretty obvious that the spindle is actually running at whatever RPM is displayed on the VFD and not what is input to the RPM window on the monitor.
If I close the RPM window on the monitor and manually control the spindle via the VFD front panel the spindle speeds are correct. (My Bot is a Buddy 48 Std. with the 2.2hp spindle control board.) This has got to be a software issue but I am at a loss to figure out what is not set correctly. Anyone experience anything like this???
When I input a specific RPM into the window on the monitor and hit return the spindle responds but runs much slower. If I input 17000 the VFD shows 10.2 and appears to run at that RPM. Entering 22000
results in a VFD display of 13.2 and entering 30000 results in the display showing 18.0. It is pretty obvious that the spindle is actually running at whatever RPM is displayed on the VFD and not what is input to the RPM window on the monitor.
If I close the RPM window on the monitor and manually control the spindle via the VFD front panel the spindle speeds are correct. (My Bot is a Buddy 48 Std. with the 2.2hp spindle control board.) This has got to be a software issue but I am at a loss to figure out what is not set correctly. Anyone experience anything like this???