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SMA Solar Technology AG
7 Troubleshooting
7.1 LED States
7.1.1 Operation LEDs
Configuration of the status LED (
The status LED can display the following statuses:
• Status of the Cluster Controller
• Status of the connected inverters
• Status of the plant communication
• Status of the grid management
In this document, the only states described below are those that the status LED can adopt upon initial
start-up (for a complete description of the states, see the Cluster Controller user manual).
• If the status LED is not glowing green after commissioning, refer also to the event log of the
Cluster Controller to determine the precise cause of the fault. The details of the respective fault
are logged in the event log (see the Cluster Controller user manual).
LED
All
Power (
) and status
(
)
Power
Installation Manual
)
Status
Cause and corrective measures
Off
The Cluster Controller is not connected to the voltage
supply.
Corrective measures:
• Connect the Cluster Controller to the voltage
The voltage supply is reverse-connected or the top-hat
rail power supply unit is defective.
Corrective measures:
• Ensure that the voltage supply is correctly
• If the voltage supply is correctly connected,
Power glowing
The voltage supply is too low.
red, status
Corrective measures:
glowing
• Ensure that the connected voltage supply is
yellow or red
• If the problem persists, contact the
Glowing
The start procedure is complete. The Cluster Controller
green
is ready for operation.
supply (see Section 6.13).
connected (see Section 6.13).
replace the top-hat rail power supply unit.
sufficient (see Section 6.13).
SMA Service Line (see Section 11).
ClusterController-IA-en-10
7 Troubleshooting
65
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