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INCOMPATIBLE STO TEST RECORD

One of our client has an 45KW 890 drive Frame F with Order Code: 890SD-532870E0-B00-1A000 installed in a European machine. When the power board got burned, they decided to purchase and installed new power baord by themselves, They did not consult us when their unit broke down and they sourced spare board by themselves and installed it. They just consulted us only when they have this INCOMPATIBLE STO TEST RECORD fault. The original power board is AH500820U013 but the customer was not able to find supplier for this board instead what they got was AH500820U003.  

This fault cannot be reset. We also tried to reset to factory default but same. We cannot install also the configuration because the drive do not process any command from DSE or DSELite. Can you please give us advise on how to reset the drive or resolve this fault so we could install the configuration.

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  • Good afternoon.  Drives that have an STO feature have to have that feature installed, tested, certified and documented by the factory.  That documentation, per the STO standard, must remain on file with manufacturer for the entire product life cycle.  This is similar to the documentation that must remain on file to validate the airworthiness of an aircraft.

    For this reason, Parker does not recommend repairing STO-enabled power stacks in the field.  The STO test record is there to ensure the power stack has not been tampered with or modified.  We do this because STO failures can be a life and limb hazard and only qualified technicians should repair (and then test, certify, document and file) STO-enabled power stacks.

    We recommend sending the power stack in to the factory for repair, either in Europe or the US.  Alternatively, getting a replacement power stack would work as well.  There is no way to fix an INCOMPATIBLE STO TEST RECORD fault in the field.

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  • Good afternoon.  Drives that have an STO feature have to have that feature installed, tested, certified and documented by the factory.  That documentation, per the STO standard, must remain on file with manufacturer for the entire product life cycle.  This is similar to the documentation that must remain on file to validate the airworthiness of an aircraft.

    For this reason, Parker does not recommend repairing STO-enabled power stacks in the field.  The STO test record is there to ensure the power stack has not been tampered with or modified.  We do this because STO failures can be a life and limb hazard and only qualified technicians should repair (and then test, certify, document and file) STO-enabled power stacks.

    We recommend sending the power stack in to the factory for repair, either in Europe or the US.  Alternatively, getting a replacement power stack would work as well.  There is no way to fix an INCOMPATIBLE STO TEST RECORD fault in the field.

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