Troubleshooting; Led Messages; Green Led; Slow Flashing - Ingeteam Ingecon Sun 250 TL Installation Manual

Ingeteam Energy, S.A.

8. Troubleshooting

This is a guide for troubleshooting problems that may arise in the installation of the Ingecon
It also explains how to perform simple operations such as component replacement and unit configuration.
Troubleshooting for the Ingecon® Sun Power Max unit must be performed by qualified personnel in
compliance with the general safety instructions in this manual.

8.1. LED messages

Some of the LEDs indicate some kind of problem in the PV installation.

8.1.1. Green LED

This is the LED that should light up in normal start-up and operating conditions, while the others remain off. It has
three modes:

Slow flashing

Standby due to low solar radiation. Flashing every 3 seconds. This alarm is triggered when the PV array does not
receive enough solar radiation to supply the minimum voltage required by the inverter to inject power. This occurs
commonly between sunset and sunrise, or at times when rain, clouds or other atmospheric phenomena produce over-
cast conditions above the PV array.
If this situation occurs on a day which is not particularly dark, check that the panels are clean and properly installed.

Fast flashing

This type of blinking indicates that the PV array is feeding the right amount of voltage to the inverter and it is about
to start up. In this state, the inverter checks the grid parameters to feed current into the grid at the latter's precise
voltage and frequency. This process takes about 1 minute (adjustable).

Steady light

Inverter connected to the grid.
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