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The best way to see what Clipsal electric products can do for your home is seeing them in action at a Clipsal Powerhouse Display Centre.

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    What would cause the ATV320 drives display to flash?

    Issue:
    What would cause the ATV320 display to flash?

    Product Line: 
    ATV320

    Environment: 
    All 

    Cause: 
    Drive display blinks off and on.  Motor does not reach commanded speed.  Drive may eventually shut down with Motor Overload Fault (OLF) or Drive Over Temp Fault (OHF).

    Resolution: 
    The blinking or flashing display is a warning indication that the motor is pulling the maximum current limit programmed value in the drive.  This maximum current limit programmed value is set by the CLI [Current Limitation] parameter. See page 94 in the attached ATV320 Programming Manual.
                           

    Check your load to see if motor direction is correct.
    If the motor is spinning too fast in the wrong direction, the drive will have a difficult time catching it and correcting the direction. In this case, a mechanical brake on the motor may be necessary.
    See if motor is stuck or in a locked rotor.
    Check the drive settings ( drC menu ) to be sure the motor nameplate information is entered correctly (UnS, FrS, nCr, nSP, COS) 
    Check the Set menu to be sure ItH (motor thermal current - Overload protection) and CLI (Current limitation) are set properly.
    Measure motor current draw.

    Please note the main display on the drive will flash the freq hz value on and off when its in current limit mode.  The remote HMI VW3A1101 will show CLI in the upper left corner of the HMI if its in Current Limit.

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