Danfoss MCO 305 Operating Instructions Manual

Also see for MCO 305: Design guide Operating instructions Design guide

Examples 32-60 32-61 32-62 32-651024 PPR encoderconnected directly to themotor shaft andmaximum reference 1500RPM200 1000 5 102004096 PPR encoderconnected directly to themotor shaft andmaximum reference 1500RPM50 250 5 25501024 PPR encoderconnected behind a 10:1gearbox and maximumreference 1500 RPM2000 10000 5 1020001024 PPR encoderconnected directly to themotor shaft andmaximum reference 3000RPM100 500 5 5100Further optimizing can easily be done by means of thegraphical Test-run tool which is included in the APOSSeditor this however implies that the motor/application canmove.3.7 Executing a Test ProgramNow connect the motor to the VLT AutomationDrive, makesure that the motor can turn completely freely.NOTEThe motor must be provided with an EMERGENCY STOPbutton.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 andforth 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?NOTETurn off the motor immediately with the EMERGENCYSTOP button if it vibrates heavily or sets off uncontrolled.....the motor sets off uncontrolled, but the encoder testpreviously was successful, then decrease 32-60 Proportionalfactor. (See Optimizing the PID controller).....the motor doesn't move?If the motor doesn’t move at all, then the ProportionalFactor of the PID filter is probably too low or the VLTAutomationDrive has not been enabled.Check the VLT AutomationDrive enable (terminal 37 = 24V)and check that the VLT AutomationDrive was not stoppedvia the LCP. Then increase 32-60 Proportional factor. (See4 Optimizing the PID controller).....the motor vibrates heavily?If the motor vibrates, optimize the PID controller andadjust the other parameters of the controller: Reduceeither 32-60 Proportional factor or increase 32-61 Derivativefactor.....a "Tolerated Position Error is exceeded" is reported?If the frequency converter stops due to a "ToleratedPosition Error is exceeded" message it is possible todetermine whether the frequency converter was rotating inthe wrong direction by comparing the curves of the setand actual values. Check the connections of the motor orencoder. If the connections are correct, then it is necessaryto increase the par. 32-67 Maximum Tolerated Position Error.(See Optimizing the PID controller.)How to Install MCO 305 Operating Instructions18 MG.33.K3.02 - VLT® is a registered Danfoss trademark33