FR-F800 E.THT — Inv. overload trip
CAUSE
Why does it occur?
When the temperature of the output transistor element exceeds the protection level while a current flows at the rated output current level or higher without causing an overcurrent trip (E.OC), the inverter output is stopped. (Permissible overload capacity 120% 60 s) Check that acceleration/deceleration time is not too short. Check that torque boost setting is not too large (small). Check th
REMEDY · Step by step
How to fix it?
Set the acceleration/deceleration time longer. Adjust the torque boost setting. Set the load pattern selection setting according to the load pattern of the using machine. Reduce the load. Resetting the inverter initializes the internal cumulative heat value of the electronic thermal O/L relay function.
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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