Which faults are NOT covered by Fault Inhibition on the ATV61 drive?
Resolution:
Fault Inhibition on the ATV61 drive can suppress the display of certain software-related faults only. It is designed for operational convenience, not for protecting the drive from damage.
Important limitations:
- Critical, internal, and hardware faults cannot be inhibited. These faults remain active even when Fault Inhibition (INH) is enabled, to ensure the drive is protected from serious damage.
- Fault Inhibition works only for the specific faults listed in the ATV61 programming manual.
Faults that can be inhibited
The following faults may be inhibited and cleared remotely using a logic input or control bit via the [Fault inhibit assign] (InH) parameter:
EnF, InFA, InFb, SOF, SPF, tnF, APF, CnF, COF, EPF1, EPF2, FCF2, Fd1, LFF2, LFF3, LFF4, nFF, ObF, OHF, OLC, OLF, OPF1, OPF2, OSF, OtF1, OtF2, OtFL, PHF, PtF1, PtF2, PtFL, SLF1, SLF2, SLF3, SPIF, SSF, tJF, ULF, USF
Faults that cannot be inhibited
All other critical, internal, or hardware-related faults (for example: SCFx, ILx, INFE, CRFx) will always remain active, even if Fault Inhibition is turned on.
If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:
Frequently Asked Questions - Schneider Electric (se.com)
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