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Identification: MD-AL-GI-00
Rev. 1.1 of 15/03/2021 - Application: GID
User’s Manual 3PH 20000TL - 33000TL-V2
Rev. 1.1 15/03/2021
Note:
To activate the Reflux Power mode in three-phase inverters, it is necessary to install the Anti Reverse
Power Controller and three CT sensors, as described in the appropriate procedure. This device can be
purchased from suppliers of photovoltaic materials.
The size of the inverter and power value you wish to feed into the grid must be specified at the time of
purchase.
MPPT Scan
Select “21. MPPT Scan” and press “OK” to enter the relative menu, from which you can enable the “MPPT
Scan” function, i.e. the possibility to set the periodic search for the Maximum Power Point. Enter the
password “0001” using the “Up” and “Down” keys to select the number and “OK” to move to the next one,
and confirm. If the display shows “Incorrect, try again!” press the “Back” key and enter the password again.
When the password entered is correct, you can enter the menu. Use the “Up” and “Down” keys to choose
between the items “Set Scan Paras” and “Scan Test”. For each of the two items, you can use the “Up” and
“Down” keys to set the “1. Enable” and “2. Disable” option, and then select it with the “OK” key. Entering the
first menu, if the option “1. Enable” is selected, you will be able to select the “Scan Freq” i.e. the time interval
in which the new MPPT will be searched (the time is expressed in ** min); with this function, the
photovoltaic production will be reset every ** minutes and will return to the current maximum power point.
If the setting is successful, “OK” will be displayed; otherwise, “Error” will be displayed. The second item
“Scan Test” allows performing an instant test to search for the current MPPT so that the inverter moves to
the condition of maximum power.
This function can be used if the shading on the panels is extensive, thus reducing their efficiency and
productivity. Under optimal conditions, however, this function is not recommended, as it would limit the
productivity of the inverter.
P(f) Setting
Select “22. Set P(f)” and press “OK” to enter the relative menu, from which you can change the active power
according to the grid frequency required by the local regulations. This function may be required by various
regulations for grid-connected inverters. Use the “Up”, “Down” and “OK” keys to set the time delay expressed
in seconds (*.***s) before the changed P active power will intervene.
Q(v) Setting
Select “23. Set Q(v)” and press “OK” to enter the relative menu, from which you can change the reactive
power according to the grid voltage required by the local regulations. This function may be required by
various regulations for grid-connected inverters. Use the “Up”, “Down” and “OK” keys to set the time delay
expressed in seconds (*.***s) before the changed Q reactive power will intervene.
Control 81.S1
Select “24. 81.S1Check” and press “OK” to enter the relative menu, from which it will be possible to enable
the frequency restriction thresholds required in special cases by local regulations. Use the “Up” and “Down”
keys to set the option “1. Enable 81.S1” and “2. Disable 81.S1” and select with the “OK” key. The display will
show “OK” if the setting is successful.
Fast self-test
1)
During normal operation of the inverter, press the “Back” key to enter the main menu.
2)
Press the “OK” key to enter the “Settings” menu.
