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- Mon Jan 12, 2015 2:15 pm
- Forum: Speed Control Systems
- Topic: BLM460S-GFV high pitch sound
- Replies: 1
- Views: 3042
We have a machine with (2) BMU460SA-100A-3 systems. One of the motors is running at almost full speed (runs a pulley with a small belt) and has a constant high pitch whine that is quite annoying. We run the other motor much slower (runs a chain) and it is fine (although we can turn it up and it to p...