• Victron Connect App

  What is ‘Accept Wide Frequency Range’ setting in VictronConnect using Multiplus

  Posted by Farron on January 20, 2024 at 7:55 am

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  I’m configuring the Grid settings on my VictronConnect app, after connecting my Multiplus-II to my computer, using the MK3 USB interface device, and came across ‘Accept wide frequency range’. Can you explain the purpose of this setting and in what situations it would be beneficial, especially in relation to generator use?

  Riovar replied 5 months, 2 weeks ago 2 Members · 1 Reply
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  Riovar

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  January 20, 2024 at 9:11 am

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  The ‘Accept wide frequency range’ setting in the grid section of the VictronConnect app is designed to allow your MultiPlus inverter/charger to operate with a wider range of input frequencies than the standard 50Hz or 60Hz.

  Function:

  • This setting relaxes the inverter/charger’s sensitivity to the exact frequency of the AC input.

  • Normally, inverters require a very stable frequency to operate correctly, as significant deviations can lead to operational issues or damage.

  • By enabling this setting, your MultiPlus can accept input power with a frequency between 45Hz and 65Hz, which is outside the standard range.

  Use Case for Generators:

  • Generators, especially portable ones, can have fluctuating output frequencies due to changes in engine speed.

  • This is especially true for non-inverter type generators under varying loads. If the MultiPlus is set to only accept the standard frequency, it could reject power from a generator that doesn’t maintain a perfect 50Hz or 60Hz output.

  • By accepting a wider frequency range, the MultiPlus can continue to operate effectively even if the generator’s frequency varies within this wider range.

  Advantages:

  • This setting is particularly useful when using the MultiPlus in areas with unstable grid frequency or with generators where the frequency stability cannot be guaranteed.

  • It prevents the MultiPlus from disconnecting from a power source simply because the frequency deviates slightly from the norm, ensuring a more consistent power supply.

  When using this feature, it’s important to consider the connected loads and their tolerance to frequency variations. Some sensitive electronic devices may not operate correctly if the frequency is too far from the standard 50Hz or 60Hz.

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