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We have a setup composed of a Faulhaber brushless DC motor with a gearbox (14:1) and another reduction system. We are using the motor with the IFM board in CSP control mode. We have tested several motion speeds and we have highlighted a high increase of current consumption from our power supply when we increase the motor speed (with almost no external loads or friction). We can reach 3-4 A. This increase is above what we were expected. Could it be that this current increase is due to a bad configuration of the motor controller. Do you have any hint to test ?
Ooops, it looks like this post is overlooked. Is the issue still relevant?
When model-based predictive torque controller is used, the critical point is to provide the updated commutation angle as fast as possible. Some feedback sensors are not configured or not capable of providing the angle estimate fast enough (ideally @ 15kHz rate) and then the commutation on high speeds may not be efficient enough.
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