Only in the up direction and more pronounced as the car passes halfway and continues to the top floor, is at its worst nearing the top floor. The drive cabinet is also making noise consistent with the vibration.
Definitely ruled out the obvious (roller guides etc) I'm looking toward the drive. Has anyone had this happen? Trying to narrow down between tach/capacitors/scr but any ideas would be helpful. Runs great empty car going down and short floor runs going up but any high speed runs sets up a vibration.
Thanks
Its only in one direction (up empty car) and more pronounced near the top landing.
This drive is also called a Swift Quiet Drive.
Id like to replace the faulty component but gaining proprietary tech support and engineering information is next to impossible. time is of the essence and i might have to replace the drive as a whole if its possible. My concern with that is there are many configurations available and this is on a 460V mod. Might not have them at home depot
Is there anyone in north america that does exchange on these drives?
Did you test it with a balanced load? Did you test it with the full capacity?
Looking at you previous post. I see you looked at the encoders. How are the encoders coupled?
The drive indicates the speed and it shows car is overspeeding and underspeeding back and forth. I compared this with the other car for accuracy.
Even with ropes retensioned on inspect and sometimes 350fpm i was almost feeling slip. Ropes are all sitting equally in their grooves on the drive sheave....I marked the ropes and after 15-20 runs they had moved equally up the sheave. Ropes are still within spec and were replaced in 2004.