Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS, Функциональное описание

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8-2
Functions ECODRIVE03-FL*-04VRS
DOK-ECODR3-FL*-04VRS**-FK01-EN-P
Pertinent Parameters
•
A100, Function of encoder 2
•
AA07, Measuring wheel mode
•
CR10, Actual position filter time constant for measuring wheel
mode
Functioning
•
The optional encoder must be set in Parameter A100, Function of
encoder 2 as a measuring wheel encoder.
•
The material is in feed rollers and under the measuring wheel.
•
The feed rollers are closed.
•
The measuring wheel encoder is pressed up against the material.
The measuring wheel function is possible only in Automatic Mode. In
Manual Mode, the motor encoder always handles positioning control.
It is activated in Parameter A100, Function of encoder 2. It is possible to
deactivate the measuring wheel function via an input or marker flag in
Automatic Mode by programming Parameter AA07, Measuring wheel
mode.
The drive switches over to Position Control Mode with motor encoder and
measuring wheel encoder.
Any negative effects produced by poor coupling between the measuring
wheel encoder and the motor shaft (only those due to material properties)
shall be alleviated by attenuating the differences in the position feedback
value. The differences are smoothed out using a first-order filter. The filter
time constants are set in Parameter CR10, Actual position filter-time
constant for measuring wheel mode.
Meas_wheel_1.WMF
Fig. 8-1: Generation of Position Feedback Value in Measuring Wheel Mode
The position of the measuring wheel encoder is detected correctly.
However, automatic control is handled by the motor encoder.
If position loop reset is required in conjunction with ‘measuring wheel
mode,’ the ‘measuring wheel mode’ signal must be removed via the signal
input while resetting the position loop (Parameter AA07). Care must be
taken not to exceed switching times.
Requirements
Activation
Drive in Position Control Mode
Manual Mode
Open Feed Roll