Position Control Loop - Siemens SINUMERIK 840D sl Function Manual

S9: Setpoint switchover

7.5 Position control loop

7.5 Position control loop
During setpoint exchange, the drive train and therefore the position control loop are isolated.
In order to avoid instabilities, exchange only takes place at standstill and once all servo
enables have been deleted.
The use of a single drive means that only one of the control loops can be closed at any one
time. Axes without drive control are operated with open position controller and following
positions.
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Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions