Executing A Test Program - Danfoss MCO 305 Operating Instructions Manual

How to Install
Examples
1024 PPR encoder
connected directly to the
motor shaft and
maximum reference 1500
RPM
3 3
4096 PPR encoder
connected directly to the
motor shaft and
maximum reference 1500
RPM
1024 PPR encoder
connected behind a 10:1
gearbox and maximum
reference 1500 RPM
1024 PPR encoder
connected directly to the
motor shaft and
maximum reference 3000
RPM
Further optimizing can easily be done by means of the
graphical Test-run tool which is included in the APOSS
editor this however implies that the motor/application can
move.

3.7 Executing a Test Program

Now connect the motor to the VLT AutomationDrive, make
sure that the motor can turn completely freely.
NOTE
The motor must be provided with an EMERGENCY STOP
button.
Select the file "Move-S.m" via the VLT AutomationDrive.
APOSS and with that the file is opened automatically.
Click on Development and start the test program with →
Execute or [F5].
The test is successful if the motor runs slowly back and
forth and position 500 is registered.
End the test with [Esc] and Close the File.
What to do, if ... ?
....the motor sets off uncontrolled or vibrates heavily?
NOTE
Turn off the motor immediately with the EMERGENCY
STOP button if it vibrates heavily or sets off uncontrolled.
....the motor sets off uncontrolled, but the encoder test
previously was successful, then decrease 32-60 Proportional
factor. (See Optimizing the PID controller).
....the motor doesn't move?
18
MCO 305 Operating Instructions
32-60 32-61 32-62 32-65
200 1000 5 10200
50 250 5 2550
2000 10000 5 102000
100 500 5 5100
MG.33.K3.02 - VLT
If the motor doesn't move at all, then the Proportional
Factor of the PID filter is probably too low or the VLT
AutomationDrive has not been enabled.
Check the VLT AutomationDrive enable (terminal 37 = 24V)
and check that the VLT AutomationDrive was not stopped
via the LCP. Then increase 32-60 Proportional factor. (See
4 Optimizing the PID controller).
....the motor vibrates heavily?
If the motor vibrates, optimize the PID controller and
adjust the other parameters of the controller: Reduce
either 32-60 Proportional factor or increase 32-61 Derivative
factor
.
....a "Tolerated Position Error is exceeded" is reported?
If the frequency converter stops due to a "Tolerated
Position Error is exceeded" message it is possible to
determine whether the frequency converter was rotating in
the wrong direction by comparing the curves of the set
and actual values. Check the connections of the motor or
encoder. If the connections are correct, then it is necessary
to increase the par. 32-67 Maximum Tolerated Position Error.
(See Optimizing the PID controller.)
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