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FeedforwardGainPff Parameter

Use the FeedforwardGainPff Parameter to set the position feedforward gain. This parameter adds a feedforward control effort in proportion with the position of the axis. It is usually used with flexure-based positioning stages. Do not use position feedforward with most air- or ball-bearing A support mechanism allowing relative motion between two surfaces loaded against each other. This can be a rotary ball bearing, linear slide bearing, or air bearing (zero friction). type stages. The units of this gain are N/m or Nm/rad when the FeedforwardGainNormalizationFactor Parameter is set correctly.

 

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