InverterFR-A800Verification pending — cross-check with the official manual
FR-A800 E.LDN — Lower limit fault
Trip — immediate stop
CAUSE
Why does it occur?
- The inverter output is shut off when the load falls below the lower limit fault detection range
- This protective function is not available in the initial setting of Pr.1491 (Pr.1491 = "9999"). • Check if the equipment load is too light. • Check that the load characteristics settings are correct
REMEDY · Step by step
How to fix it?
- • Inspect the equipment. • Set the load characteristics (Pr.1481 to Pr.14
- correctly. V/F V/F V/F Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless Vector Vector Vector PM PM PM PM PM PM
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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