Thanks for your answer @inu.
That’s what I expected.
In my setup , there is a heavy tool mounted at the flange, that gets in contact with a surface. If the contact is made, the freedrive mode will be activated for a few seconds. I tried different RTDE values and data of our FTS to check how the tool is moving and changing its position in this freedrive phase.
Other values seem to be more precise und useful for this but I was just wondering about the accelorometer.