InverterFR-E800Verification pending — cross-check with the official manual
FR-E800 OLV — OLV
Alarm — operational, inspection needed
CAUSE
Why does it occur?
- • When the output voltage of the inverter increases, the stall prevention (overvoltage) function is activated. • The regeneration avoidance function is activated due to excessive regenerative power of the motor. • The following section explains about the stall prevention (overvoltage) function
- During deceleration If the regenerative power of the motor becomes excessive to exceed the regenerative
REMEDY · Step by step
How to fix it?
- The deceleration time may change
- Increase the deceleration time using Pr.8 Deceleration time
- Reference manual FR-E800 Instruction Manual (Function)
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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