F71
Net Loss
Allen-Bradley · PowerFlex 4M Adjustable Frequency AC Drive
What does F71 mean?
The drive has lost communication with its external network adapter or the network itself has failed. This means the drive is no longer receiving commands or transmitting status via the network, preventing remote control and monitoring.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Verify the settings of the network adapter (if external) and the drive's communication parameters (e.g., C301-C307) match the network configuration.
- 4
Check the status of the external communication network using appropriate network diagnostic tools or by observing other devices on the network.
Source: Allen-Bradley PowerFlex 4M Adjustable Frequency AC Drive
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