Detailed Description 
  2.4 Closed-loop control 
Velocities, Setpoint/Actual-Value Systems, Closed-Loop Control (G2) 
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0 
2-49 
Intermediate gear encoder on tool 
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Fig. 2-11  Intermediate gear with encoder directly on the rotating tool 
In order to adapt the actual-value resolution to the calculation resolution, the control 
calculates the quotients from the "internal increments/mm" and the "encoder increments/mm" 
as follows: 
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2.4  2.4 Closed-loop control 
2.4.1  General 
Position control of an axis/spindle 
The closed-loop control of an axis consists of the current and speed control loop of the drive 
plus a higher-level position control loop in the NC.