InverterFR-A800Verification pending — cross-check with the official manual
FR-A800 E.USB — USB communication fault
Trip — immediate stop
CAUSE
Why does it occur?
The inverter output is shut off when the communication is cut off for the time set in Pr.548 USB communication check time interval. • Check that the USB communication cable is connected securely.
REMEDY · Step by step
How to fix it?
• Check the Pr.548 setting. • Connect the USB communication cable securely. • Increase the Pr.548 setting or set "9999." (Refer to page 719.)
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Mitsubishi Electric manual. For accurate and complete information, always consult the official manual.
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