STEPLEN STEPSPACE time for Bergerda AC servo driver

Scope reading with 1000 nanoseconds:
 

And with 900 nanoseconds and increased following error:
 

Looks like the drive is not responding to shorter step pulses (no motion at all)

Is is possible there is a digital filter in the drive so it rejects shorter than 1000 ns step pulses?

Driver manual can be downloaded here: en.bergerda.com/download/31.html

I checked, there is parameter P82 - Input pulse filter frequency, which default value by manual is 800, but need to check tomorrow what number is actually set!

 
 

Parameter 82 did the trick! It was set to 600 by default, now I set it to 1000, and works perfectly up to 170mm/s velocity.