EF7
External Fault (Terminal S7)
Yaskawa · V1000 AC Drive
What does EF7 mean?
This fault indicates that an external device triggered a fault via the Multi-Function Digital Input (MFDI) terminal S7, or there is incorrect wiring to S7, or the terminal is incorrectly configured for an external fault despite not being in use. This causes the drive to halt operation based on an external signal, potentially stopping connected machinery.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Ensure the MFDI settings for terminal S7 (parameter H1-07) are correctly configured for its intended use, or adjust if the terminal is not in use.
Source: Yaskawa V1000 AC Drive
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