Well I'm having an issue with my spindle amp. It's a Mitsubishi DL-SBZ. The issue is that the amp is limiting Voltage to around 2.1V on the command signal any higher voltage causes to amp to make a buzzing sound and doesn't increase actual RPMs. I've looked in the manuals from mitsubishi and tried adjusting the pots and haven't been able to even notice a change. I've also tried contacting Mitsubishi but they have failed to respond. Any advice would be greatly appreciated. Thanks.
Galil_AndyH on 03/31/2008 - 11:47
Your drive is in a velocity mode, correct?
Assuming velocity mode is correct, the drive probably has some gains that control the velocity loop. These are probably too high and will need to be lowered.
If you cannot lower the gains, then you can set the voltage output limit on the controller to 2.1V. This is done with the TL command.