Panasonic Minas E Series Instruction Manual

Also see for Minas E Series: Technical reference

Contents

154Protective FunctionsOvershooting/Undershooting The motor is overheated (burnout)CategoryAdjustmentInstallationCauseGains are poorly adjusted.Load inertia is high.The equipment (machine) has play andslip.Ambient temperature and environmentThe cooling fan stops. The air intake ofthe fan is dirty.Mismatch between the driver and motorThe motor bearing is defective.The electromagnetic brake keeps onrunning (failure to release the brake).The motor is defective (due to oil,water, etc.)With the dynamic brake activated, themotor is rotated by external force.ActionCheck gains using the waveform graphic function ofPANATERM®. Correctly adjust gains. Refer to Section onAdjustment.Check gains using the waveform graphic function ofPANATERM®. Increase capacity of the motor and driver anddecrease inertia ratio. Use reduction gears.Modify coupling with the equipment (machine).If the ambient temperature exceeds a specified value, install thecooling fan to reduce the temperature.Inspect the cooling fans of the equipment and the driver. As thelatter needs to be replaced, ask for repair.Check the nameplates of the driver and motor. Referring to theinstruction manuals or catalogs, select a correct combination ofthem.Power off, turn the shaft of the motor independently, and checkif there is any rumbling sound. If so, replace the motor. Ask forrepair.Check voltage of the brake terminal. Apply power (DC24V) tothe power supply and release the brake.Avoid high temperature/humidity, oil, dust, and iron powders.Check the operating pattern, use condition, and workingcondition, and avoid this kind of operation.Parameter returns to the last valueWhen using PANATERM ® , the message “communication port or driver cannot be detected” appearsThe speed (movement) is large or smallRotation speed does not increase to the set speedCategoryAdjustmentCauseThe position loop gain is low.The dividing/multiplier are notappropriate.ActionAdjust the value of the position loop gain Pr10 to approximately100.Correct the values of the numerator of 1st command pulse ratioPr46, multiplier of numerator of command pulse ratio 4A, anddenominator of command pulse ratio 4B. Refer to parametersettings of each mode.CategoryParameterCauseA parameter value has not been writteninto EEPROM prior to power-off of thedriver.ActionRefer to Writing to EEPROM of “Structure of Each Mode” onPage 50 of Preparation edition.CategoryWiringCauseThe connector CN X6 is not connectedto the personal computer through thecommunications cable (RS232C).ActionConnect the communications cable (RS232C) to the connectorCN X6. Check that the communications cable is disconnected.Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com