ABB · ACS850 Standard Program Firmware
This error indicates an incorrect configuration when assigning POWERREADYINPUT or POWERREADYOUTPUT to an I/O. This can be caused by incompatible INPUTMODE/INPUTACTIVELEVEL/OUTPUTACTIVELEVEL settings, or by attempting to reconfigure an I/O that is already designated as POWERREADY. This prevents the drive from correctly signalling or detecting its power-ready status, potentially impacting system safety or startup sequences.
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Access the drive's configuration software and verify the I/O assignment for POWERREADYINPUT, ensuring it's mapped to a digital input terminal (e.g., DI1, DI2).
Check the INPUTMODE parameter (e.g., P8-01 (Digital Input 1 Mode)) for the assigned POWERREADYINPUT and set it to the appropriate digital input type (e.g., "Normal Digital Input").
Confirm the INPUTACTIVELEVEL parameter (e.g., P8-02 (Digital Input 1 Active Level)) matches the expected voltage level (e.g., "High Active" for 24VDC, "Low Active" for 0VDC).
For POWERREADYOUTPUT, ensure the assigned digital output terminal (e.g., DO1, DO2) is not being used by another critical safety or control function.
Adjust the OUTPUTACTIVELEVEL parameter (e.g., P8-11 (Digital Output 1 Active Level)) for the POWERREADYOUTPUT to ensure the correct active state (e.g., "High Active" for 24VDC, "Low Active" for 0VDC).