RMC150 Target not Following Command

[Paul_Huumala]

Hello,

Does this sound like the issue you are seeing?

The Open Loop to Closed Loop Problem

A fairly common support question is “Sometimes when I issue a move command to an axis, it goes the opposite direction first, before heading in the right direction. What is happening with my axis?” This is a symptom of sending a closed loop command to an axis that is currently in open loop. Why does this happen? The answer is noisy feedback. The conditions where this problem usually occur are: the axis is stopped, the feedback signal is noisy, and the Actual Acceleration value is low. When a …

If you axis is in open-loop before you issue the command, I expect this is the problem you are seeing.