Drive - Filters Tab - MCi iControl User Manual

Drive - Filters Tab

System filters are used to smooth oscillation or resonance in a signal. Oscillation can almost
always be corrected by adjusting the TORQMAX drive and should always be adjusted before fil-
tering defaults are changed. The notch filter is used to block a specific, fixed/narrow frequency
oscillation, induced by the mechanical system and reflected in the speed feedback signal.
Caution
Incorrect filter settings may result in oscillation (not enough high frequency filtering) or in
unresponsive, erratic control of car speed (too much high frequency filtering). Consult MCE
Technical Support if you are not familiar with adjusting filters. Always work with TORQ-
MAX drive before changing filter default settings.
System
Speed loop filtering.
• Raw pattern frequency: Applies smoothing to the raw pattern frequency. Higher settings
provide better response but may result in uneven (bumpy) acceleration/deceleration.
• Flare pattern frequency: Applies smoothing to the flare pattern frequency. Higher settings
provide better response but may result in uneven (bumpy) acceleration/deceleration.
• Processed pattern frequency: Applies smoothing to the post-processing pattern signal.
Higher settings provide better response but may result in uneven (bumpy) acceleration/
deceleration.
• Speed reference frequency: Smooths the Tach/Encoder signal. Typical recommended
range is from 50 to 75 Hz. Higher values provide less smoothing.
Configuration - Drive
9-91
9