User Manual

IM_100.CCF.20170512-EN C45

Using the Software PC/MAC – Digital Filter

5.13.2 Low-pass filter – Reduce high-frequency vibrations

Low

pass filters:

In particular when you are using

a heavy camera, it can be necessary to dampen

any emerging resonances with a low-pass filter.

As the D factor favours the PID control

resonances in connection with heavy cameras at

high frequencies, a low-pass filter can dampen the

amplification of high frequencies and as such

improve the stability of the system.

However, a disadvantage is a resulting negative

phase delay, which adversely effects the PID

stability.

Therefore, it is somewhat complicated to

configure this filter and its use is not always

justified.