External Fault

What does 51 mean?

This fault indicates that a digital input configured as an external fault trigger has been activated. The fault originates from an external device connected to the drive, signaling a critical condition outside the drive's internal diagnostics.

• External control signal indicates a fault condition (e.g., digital input status).
• Interlock circuit triggered by safety device or process condition.
• Signal from a higher-level control system indicating a fault.
• Emergency stop circuit activated externally.

Click steps to track your progress.

1. 1

   Identify and rectify the fault condition on the external device connected to the drive's digital input that triggered this fault.