Hi,
Lucien,
No, If I change the multiplier the motor will turn faster but I get more invalid transitions. I CAN go faster with the multiplier set to 0 it's just that the faster I go the more invalid encoder transitions I get (as seen by the O paramter in the UHU. So IMHO it's definetly a problem with the encoder signals/frequency and not with the frequency of step pulses.
I'm looking forward to see your testresults!
Irfan,
The problem isn't that the drive errors out or the available torque. The problem is that I can't run the motor at any reasonable speed without getting false transistions on the encoder lines (the O-parameter in the UHU, it should ALWAYS stay ay zero) which effectively means I'm loosing position which isn't acceptable.
The Torque Limit (T) is set to 255 on mine, if you set it to a lower value, say 128, you'll only get 50% of the available torque so your results are quite expectable.
Neil,
No problem, happens to me all the time!
All,
I'm having a hard time beleiving that it's really the limit since the manual states 100kHz, the FAQ says atleast 150kHz and that over 300kHz is possible under the right conditions. So it's probably the encoder itself, the diff-driver (although I have tried without it too) and/or the wiring but I'd like to know what others have achieved before getting new encoders. Please look at the O-parameter and make sure it really stays at zero.
Thanks guys!
/Henrik.  |