Mitsubishi — Vfgl Manual Portable

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Part 10: Conclusion – Why This Manual is Your Best Tool

The Mitsubishi VFGL is a sophisticated, high-efficiency power regeneration workhorse. But like all complex electronics, it requires respect, correct installation, and immediate access to accurate reference data. mitsubishi vfgl manual portable

Error 2: E.UVT (Undervoltage)

• Cause: AC input voltage dropped below 200V (for 400V class: below 380V).
• Portable Fix: Measure R/S/T on the input side. If voltage is fine, look at Pr. 30 (Undervoltage level). Some factories set it too high.
• Manual Tip: Verify control power (R1/S1) is not sagging during motor deceleration.

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Starting sequence (no manual):

Maintenance tips

• Keep ventilation openings and cooling fins clean; remove dust every 6–12 months.
• Verify fan operation; replace if noisy or failed.
• Check terminal tightness annually.
• Allow full capacitor discharge time before servicing (see manual for time).
• Store/operate within specified humidity and temperature ranges.