DC Questions – Imeon Energy https://imeon-energy.co.za Your Power, Your Rules Tue, 25 Feb 2020 14:27:01 +0000 en-ZA hourly 1 https://imeon-energy.co.za/wp-content/uploads/cropped-imeon-icon-logo-favicon-2-32x32.png DC Questions – Imeon Energy https://imeon-energy.co.za 32 32 How to get the best performance from your batteries? https://imeon-energy.co.za/faq-za/dc-questions-en-za/how-to-get-the-best-performance-from-your-batteries/ Tue, 23 Jan 2018 08:59:11 +0000 https://imeon-energy.com/non-classifiee/how-to-get-the-best-performance-from-your-batteries/ Lead-acid batteries (GEL, AGM, OPz) can be used with IMEON inverters. In combination with the settings made on IMEON OS. ONE app, a careful reading and analysis of your manufacturer’s specifications is the key to the proper sizing of your installation. Among the odd damage to your batteries are: extended periods without full charge, cycles with excessive discharges (DODs too high), incorrectly set charging cycles. This is why you must pay attention to the bulk and float voltages, to the maximum values ​​of charging and discharging currents. A charging voltage or charge current that is too high will damage your batteries. In contrast, insufficient bulk and float voltages will lead to poor results and ultimately a degradation of the battery bank until it is not used. Large discharge settings (such as a DOD value set to 100%) will make your batteries unusable sooner or later.All the attention paid to these points will be rewarded with comfortable and optimized results.Finally, consider that the dimensioning as a whole must include the possibility of charging your batteries: inadequate PV sizing or even rule out the possibility of charging your batteries from the network will lead you to disappointing results. Most Lithium battery parameters are specific and managed automatically. To enable their use, you must first check our list of compatible models (contact your distributor or our sales department).

]]> The display of the state of charge of the batteries varies greatly https://imeon-energy.co.za/faq-za/dc-questions-en-za/the-display-of-the-state-of-charge-of-the-batteries-varies-greatly/ Tue, 23 Jan 2018 08:58:40 +0000 https://imeon-energy.com/non-classifiee/the-display-of-the-state-of-charge-of-the-batteries-varies-greatly/ The displayed SOC value is an indicative value based on a mathematical calculation. This SOC value gives an informative value with a precision tolerance. If you want to display a specific value of the SOC then, it will be necessary to invest in an additional meter. The inverter displays the SOC (state of charge) of the batteries according to the voltage. It is important to check the type of batteries used (AGM or GEL) before installing them. Make sure that the absorption voltage (Bulk) and the holding voltage (Float) are correctly set in the inverter using the IMEON OS. ONE software. The factory setting of the “absorption” voltage is 56 Vdc and the “Float” voltage is 54 Vdc. Please contact the battery manufacturer to validate the dimensioning of the battery park with IMEON.

]]> The public network constantly charging the batteries https://imeon-energy.co.za/faq-za/dc-questions-en-za/the-public-network-constantly-charging-the-batteries/ Tue, 23 Jan 2018 08:58:12 +0000 https://imeon-energy.com/non-classifiee/the-public-network-constantly-charging-the-batteries/ It is possible to enable or disable the “Allow the network to charge the batteries” function by connecting to the inverter via the IMEON OS. ONE software. Go to the “Flow Management” tab and check the “yes” or “no” box of the “Allow the network to charge the batteries” setting. Finally, enter the time range of the parameter “charging batteries through the authorized network of” for which the public network will charge the batteries.

]]> Disconnection from the public grid https://imeon-energy.co.za/faq-za/dc-questions-en-za/the-inverter-frequently-disconnects-from-the-public-grid/ Tue, 23 Jan 2018 08:57:41 +0000 https://imeon-energy.com/non-classifiee/the-inverter-frequently-disconnects-from-the-public-grid/ When the insulation resistance of the photovoltaic field is less than 1M0, the inverter indicates an insulation fault. Then, there is a disconnection. Measure the + / Earth, – / Earth and +/- voltage to identify the grounding of a positive or negative pole of the PV. Check that the power of consumers does not exceed 3kW without the presence of the public grid. Please contact your installer to check and correct the ground fault of the electrical installation.

]]> The inverter does not detect the solar panels. https://imeon-energy.co.za/faq-za/dc-questions-en-za/the-inverter-does-not-detect-the-pv/ Tue, 23 Jan 2018 08:57:17 +0000 https://imeon-energy.com/non-classifiee/the-inverter-does-not-detect-the-pv/

If the IMEON inverter no longer detects solar panels, ask your installer to check the following:

  • Is the DC PV breaker properly closed (also check the PV breaker build-in the IMEON in the case of an IMEON 9.12)?
  • Open the DC PV breaker and measure the voltage between the (+) and the (-) terminals of the photovoltaic array. The measured voltage must be within the range of the IMEON inverter’s MPPT input (see IMEON technical documentation). If this is not the case, ask your installer to rewire the installation (or change the number of solar panels if necessary).
  • Measure the current generated by the photovoltaic array. The measured current must be within the range of the IMEON inverter’s MPPT input (see IMEON technical documentation). If this is not the case, ask your installer to rewire the installation (or change the number of solar panels if necessary).

If after all the checks the problem persists, ask your installer to contact IMEON ENERGY technical support.

]]> The LCD display indicates a battery voltage of 12 Vdc or 24 Vdc https://imeon-energy.co.za/faq-za/dc-questions-en-za/the-lcd-display-indicates-a-battery-voltage-of-12-vdc-or-24-vdc/ Tue, 23 Jan 2018 08:56:47 +0000 https://imeon-energy.com/non-classifiee/the-lcd-display-indicates-a-battery-voltage-of-12-vdc-or-24-vdc/ The inverter must be connected to a nominal 48 Vdc battery park only. If the voltage of the connected batteries is 12 Vdc or 24 Vdc, the inverter will not detect the battery park. Please contact your installer to check the battery connection.

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