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peterpearce99 asked

MultiPlus II excessive buzz with ESS

This is a MultiPlus II GX 48/3000/35-32 Firmware V500.

The first thing to say is that this is a "buzzy" box when charging and/or inverting which I have got used to, however, I now wish to use ESS and the buzzing substantially increases to an unacceptable level.

Some details:

  1. ESS external control.
  2. The buzzing is permanent, it only stops on passthru.
  3. Battery @ 100%. Pylontech BMS.
  4. Inverter light flashing.
  5. Grid IN 400W, AC OUT 380W.
  6. dbus -y com.victronenergy.settings /Settings/CGwacs/Hub4Mode SetValue 3
  7. dbus -y com.victronenergy.vebus.ttyS3 /Hub4/DisableCharge SetValue 0
  8. dbus -y com.victronenergy.vebus.ttyS3 /Hub4/DisableFeedIn SetValue 0
  9. dbus -y com.victronenergy.vebus.ttyS3 /Hub4/L1/AcPowerSetpoint SetValue 32000

I am not prepared to indulge in vibration or sound proofing measures. I paid enough for this box in the first place!

Any ideas?

Thanks in advance.

Peter Pearce.

Multiplus-IIESS
2 |3000
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