InverterFR-E800Verification pending — cross-check with the official manual
FR-E800 E.OV2 — E.OV2
Trip — immediate stop
CAUSE
Why does it occur?
- If regenerative power causes the inverter's internal main circuit DC voltage to reach or exceed the specified value, the protection circuit is activated to stop the inverter output
- The circuit may also be activated by a surge voltage produced in the power supply system. • Check for sudden load change. • Check that the Pr.22 Stall prevention operation level is not set to the no load current or low
REMEDY · Step by step
How to fix it?
- • Keep the load stable. • Use the regeneration avoidance function (Pr.882, Pr.883, Pr.885, and Pr.886). • Use a brake resistor or brake unit, or the multifunction regeneration converter (FR-XC) as required. • Set a value larger than the no load current in Pr.
- • Set Pr.154 Voltage reduction selection during stall prevention operation = "11". • Set the acceleration/deceleration time longer. (Unde
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.