InverterFR-A800Verified · sol.ls-electric.com
FR-A800 E.IPF — Instant Pwr failure
Trip — immediate stop· AUTO-RESET
CAUSE
Why does it occur?
- If a power failure occurs (or when power input to the inverter is shut off) for longer than 15 ms*6, the instantaneous power failure protective function is activated to shut off the inverter output in order to prevent the control circuit from malfunctioning
- If a power failure persists for 100 ms or
REMEDY · Step by step
How to fix it?
• Remedy the instantaneous power failure. • Prepare a backup power supply for instantaneous power failure. • Set the function of automatic restart after instantaneous power failure (Pr.57). (Refer to page 647 and page 654.)
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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