Please identify the exact drive, motor and driven load, and say whether the machine stops under load or fails at startup — they point in different directions. Capture the active code as displayed, along with the operating conditions and the event immediately preceding it, before anyone resets the drive: the display and machine state can change on reset, and whether any history is retained afterwards depends on the controller.
Documentation is read against the model and revision that match your equipment. One example is the
Nidec / KB Electronics KBPC-225 installation and operation manual (19 pages, including the KBPC-225D supplement A42114 Rev C02 dated 22 February 2017 over underlying A40350). It covers that DC drive family only, not AC variable-frequency drives, and no settings, wiring or protection-bypass instructions are published here.
For AC drives the reference is a different document family. One example is the Allen-Bradley PowerFlex 523 and 525 user manual 520-UM001O-EN-E (September 2025, 274 pages; fault material in chapter 4, pages 159–166). It applies to those AC variable-frequency drive models only, and the 523 does not carry every fault the 525 does. That is a separate document family from the DC drive manual above, and the two are not interchangeable. More on how these are read: VFD faults & motor drive diagnostics.