Operating Manual CMGZ432
23
Adjustment of pilot control
To get the electronic unit calculating the pilot control correct, a certain drive torque has to
be assigned to a certain diameter:
•
Set parameter
Pilot control
to
No
•
Proceed for a test run. If the control loop runs stable at a diameter as large as possible,
the actual reference value and, after pressing the „Mode“ key, the actual output value
can be read from the display. Note these two values:
Actual reference value
REF
= ________________ [N]
Actual output value
OUTPUT = ________________ [V, mA]
The drive torque for the pilot control is now determined.
•
Terminate test run
•
Set parameter
Pilot control
to
external
•
Proceed parameter function
Adjustment of pilot control
(ref. to „11. Parametrisation“
and fig. 17). The reel diameter has to be the same as during the test run.
First, select the polarity of the diameter signal.
Input the formerly noted output value into „%-torque“ (for ex. output value = 7.2V =>
%-torque = 72%, or output value = 12.0mA => %-torque = 60%, etc.)
Input the formerly noted reference value [N] into „Reference“.
After confirmation with
↵
key the calculated pilot control is saved together with the
actual diameter signal.
fig. 17: Program flow „Adjustment of pilot control“
C431016e
Notice
While changing parameter
Output configuration
, the adjustment of pilot control is lost.If
parameter
Output configuration
will be changed after pilot control already being adjusted,
you have to proceed again for adjustment of pilot control!
Partition the output into pilot control signal and PI resp. PID output signal
•
Set parameter
Influence of PI
to an appropriate value, for ex. „10%“
•
Proceed for a test run. Adjust PI resp. PID control parameters and parameter
Influence
of PI
until the control loop will run stable under all conditions.
