13.7 Frequent startup problemsProblem Cause AdjustmentFrequency inverter does not startafter switching onBrake resistance is connected tothe +DC and -DC terminals on ter-minal X1/X3Brake resistance is connected to the+DC and R terminals on terminal X1/X3Frequency inverter stands still instatus 40 during start procedure,the fault message relay of outputO11-O14 does not pull up, themenu cannot be operatedInput voltage is too low Check the input voltage of the inverterOne phase on the line connectionis missingCheck wiring of the line connectionMotor does not reach nominalspeed (comparison of actual andnominal speed visible in the Infomenu on page 04)Half load adjustment is not correct Check half load adjustment and correctif necessarySettings in the "Motor Rating Plate"and "System Data" menus are notcorrectCheck settings in the "Motor RatingPlate" and "System Data" menus (thevalue of the "n*" parameter in the "Sys-tem Data" menu may not be muchgreater than the value of the "n" param-eter in the "Motor Rating Plate" menu)Motor data are not correct13.8 Automatic parameter check (APC)The Automatic parameter check checks the input values for plausibility and tolerances while theparameters are being entered.The APC function aims to prevent erroneous parameter inputs. Every message must be acknowl-edged by the user with the keyYou can activate or deactivate the APC function in the Monitoring/APC menu. The factory setting isON.Monitoring|-" APC On|-" OnAuto.Parameter ControlThrough the APC function:• Values are restricted (Limit)• Parameters are set (Set)• Parameters are updated (Update). Parameters that are not preset are updated during a softwareupdate.13.9 Automatic parameter diagnostics (APD)During Automatic parameter diagnostics, the following are checked:• The parameters for plausibility and tolerances• Device functions for functional errorsErroneous parameters or functions are shown in the display.Every message must be acknowledged by the user with the key. The APD function can be activatedin the "Statistic/APD" menu. After checking, the function is reset to "OFF".Statistics|-" APD OFF|-" ONAutomatic parameterOriginal operating instructionsZETADYN 3C Error diagnosisR-TBA08_03-GB 1619 Part.-No. 00163322-GB150/204
