AC Elevator Audible Drive Noise Resolved
AC Elevator Audible Drive Noise Resolved
(OP)
I just wanted to follow up on the thread237-151895
that was started last May by yours truly. The issue was FINALLY resolved in December of 06, thanks to the help of a great elevator consulting company who forced our vendor to try something that was suggested for months.
The noise is now gone.. the solution, slow the car down by 10 feet per minute. Apparently, the car was going a bit faster than the fpm it was rated for (by about 3-5 fpm).
Slowing it down by around 10 feet per minute, the noise is 98% gone.
Too bad it took us 6 months of vendor nagging to get them to try this.
Thanks to all who helped.
that was started last May by yours truly. The issue was FINALLY resolved in December of 06, thanks to the help of a great elevator consulting company who forced our vendor to try something that was suggested for months.
The noise is now gone.. the solution, slow the car down by 10 feet per minute. Apparently, the car was going a bit faster than the fpm it was rated for (by about 3-5 fpm).
Slowing it down by around 10 feet per minute, the noise is 98% gone.
Too bad it took us 6 months of vendor nagging to get them to try this.
Thanks to all who helped.





RE: AC Elevator Audible Drive Noise Resolved
"Marke (Electrical) 8 Apr 06 19:05
Hello scmguru
Is it possible to alter the speed that the hoist operates at by a small percentage, i.e. slow it down by say 10% and see if there is any change. It is possible that there is some form of resonance going on here. "
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: AC Elevator Audible Drive Noise Resolved
Thanks again..
RE: AC Elevator Audible Drive Noise Resolved
BTW Was the speed change a "turn-the-knob" affair or a change a gear affair?
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: AC Elevator Audible Drive Noise Resolved
It was a turn the knob affair..
Best Regards.
RE: AC Elevator Audible Drive Noise Resolved
Ignorance is innocent, it's the stupidity that irritates me so much.