ABB ACS550 User Manual

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Contents

ABB ACS550 User Manual Manual pdf 250 page image

250 ACS550 Userís ManualDiagnosticsï digital inputï serial communication.When the fault has been corrected, the motor can be started.HistoryFor reference, the last three fault codes are stored into parameters 0401, 0412,0413. For the most recent fault (identified by parameter 0401), the drive storesadditional data (in parameters 0402Ö0411) to aid in troubleshooting a problem. Forexample, parameter 0404 stores the motor speed at the time of the fault.The Assistant Control Panel provides additional information about the fault history.See section Fault Logger mode on page 55 for more information.To clear the fault history (all of the Group 04: FAULT HISTORY parameters):1. Using the control panel in the Parameters mode, select parameter 0401.2. Press EDIT (or ENTER on the Basic Control Panel).3. Press UP and DOWN at the same time.4. Press SAVE.Correcting alarmsThe recommended corrective action for alarms is:ï Determine if the alarm requires any corrective action (action is not alwaysrequired).ï Use the table in section Alarm listing below to find and address the root cause ofthe problem.Alarm listingThe following table lists the alarms by code number and describes each.Alarmcode Display Description2001 OVERCURRENT Current limiting controller is active. Check for and correct:ï Excessive motor load.ï Insufficient acceleration time (parameters 2202 ACCELER TIME 1 and2205 ACCELER TIME 2).ï Faulty motor, motor cables or connections.2002 OVERVOLTAGE Overvoltage controller is active. Check for and correct:ï Static or transient overvoltages in the input power supply.ï Insufficient deceleration time (parameters 2203 DECELER TIME 1 and2206 DECELER TIME 2).2003 UNDERVOLTAGE Undervoltage controller is active. Check for and correct:ï Undervoltage on mains.