Baldor Flex+DriveII Installation Manual

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Baldor Flex+DriveII Installation Manual Manual pdf 82 page image

6-2 Troubleshooting MN19026.2 FlexDriveII indicators6.2.1 Status displayThe Status LED display indicates general FlexDriveII status information.Some characters will flash to indicate an error.Drive / comms watchdog. Interprocessor communications failure.This is potentially a severe problem if it occurs repeatedly. Communications failurecould indicate a process locking out the interprocessor communications. Clear theerror; if the problem persists then contact Baldor technical support.Over volts. The DC Bus voltage has exceeded the powerbase overvolts level (seeDRIVEBUSOVERVOLTS). Check the DC Bus level being fed into the system (see Mintkeyword DRIVEBUSVOLTS). This should be close to the nominal voltage (see Mintkeyword DRIVEBUSNOMINALVOLTS). Ensure that your input voltage is relevant to thevoltage rating of your drive. If the input voltage is correct, then this error may be theresult of high deceleration rates. If it is not possible to reduce the harshness of thedeceleration rate, then a regeneration resistor should be used. To help you, useWorkBench v5 capture facility to monitor the DC Bus level during moves.Integrated Power Module (IPM) trip.The unitís powerbase has been overloaded. This should not happen in normal use iflimits have been configured correctly. See the Mint keyword CURRENTLIMIT andrelated commands.Current trip. Instantaneous over-current trip.One or more of the 3 motor phases has exceeded 300% of Drive Rated Current.Under volts. The DC Bus voltage has dropped below the powerbase undervolts level(see DRIVEBUSUNDERVOLTS). This error will only be generated if the drive is in theenabled state. As with the overvolts error, check the input voltage being fed into thesystem. The error could also occur during high acceleration profiles.Feedback trip. Can be enabled/disabled using FEEDBACKFAULTENABLE. Fiveconsecutive errors (or five errors in any 500 servo tick period) will cause the drive totrip. This error indicates loss of encoder/resolver feedback and may indicate that thefeedback cable has become detached or one of the signals has broken. Check thewiring in the Feedback cable; check for noise immunity; check the feedback devicefitted to the motor (if possible).Motor or Drive trip. The motor I2T or the drive I.T current protection algorithms haveexceeded their limit and tripped the drive (disabled it). Check DRIVEERROR or the ErrorLog to determine which error has occurred.The motor and drive current limits are fixed according to the database parameters. Thedrive can demand peak current for a short duration (see DRIVEPEAKDURATION),thereafter it will trip or Foldback according to the setting of DRIVEOVERLOADMODE. Thesame is true for the motor (see MOTORPEAKDURATION and MOTOROVERLOADAREA).Use the Foldback option to automatically foldback the current to a level where thedrive/motor can recover.