Danfoss MCO 305 Design Manual page 69

MCO 305 Design Guide
Starting the Testrun
Click on Testrun Execute testrun and the dialog field with the test run parameters is opened. The test run
parameters last saved and the current axis parameters are already entered.
Begin the test series with "stable" controller parameters: If the standard set controller parameters cause
the drive to vibrate heavily in the starting position, select a low Proportional (32-60) and Derivative Value
(32-61) (ca. 20) and set the Integral Factor (32-62) to zero. Then, starting from these values, optimize the
controller.
If it is at all possible you should optimize the controller first with the motor and the drive until the readings
are no longer in the critical range. Then connect the mechanical load and complete the fine optimization.
Click on Start: The test run is executed; the current position values, etc. are saved and, at the end of the
test run, transferred to the computer for evaluation.
NB!:
Observe the behavior and temperature of the motor: if there are strong vibrations or an excessive
increase in the motor temperature the motion process must be aborted prematurely with the
EMERGENCY STOP button and different controller parameters must be selected.
After making an EMERGENCY STOP you must move the drive back to the starting position before making
another test run. Reduce the par. 32-60 Proportional Factor, and if necessary also the par. 32-61 Derivative
Value, before starting the next test run or measurement.
After the measurement is complete all measurement data is automatically transferred to the computer and,
during this process, the drive returns to the starting position at a reduced velocity. The figures are plotted
automatically.
Clear Error
Clicking this button will clear any currently pending error conditions in the motor controller.
If there are pending error conditions, then the Start button will be grayed and a Testrun cannot be started.
Saving and Loading Testrun Parameters
Click on Save, to save the test run parameters in the FC 300. If, during additional test runs, you receive
poorer control results then you can
Write and Read Results
Use these function to save the testrun result as ASCII text file. This allows previously written testrun result
files to be re-read and displayed.
Display Recording
If you have used TESTSETP to define a test drive with different parameters, you can also graphically display
these results after execution (TESTSTART) with Testrun
Insofar as this is possible with the parameters you have selected, i.e. that the result can actually be
displayed with the four graphics.
These four diagrams or seven curves are used as follows:
(1) The actual position curve shows the values of index w1 (see TESTSETP),
(2) the set position curve the values of index w2,
(3) and the power curve the values of index w3.
(4) The actual speed curve shows the difference of the recorded data to the values of w1.
In the case that position data is being recorded this means the change in the position in ms = speed.
(5) The set speed curve shows the difference to the values of w2; in the case that position data is being
recorded this means the change in the position in ms = speed.
(6) The actual acceleration curve shows the difference to the values of the actual speed (see 4); in the
case that position data is being recorded this means the change in the speed in ms = acceleration.
(7) The set acceleration curve shows the difference to the values of the set speed (see 5); in the case that
position data is being recorded this means the change in the speed in ms = acceleration.
__ PC Software Interface __
Load the parameters previously used again.
®
MG.33.L4.02 – VLT is a registered Danfoss trademark
Display Recording.
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