SMA CLUSTER CONTROLLER Installation User Manual
Page 76
7.2
Errors in the Cluster Controller or the Connected
Devices
General information
Problem
Cause and corrective measure
The Cluster Controller does not start.
The LEDs and the display are off.
The Cluster Controller is not connected to the voltage sup-
ply.
Corrective measures:
• Ensure that the three-pole plug for the voltage supply
is connected to terminal X1 of the Cluster Controller.
The voltage supply is reverse-connected or the power sup-
ply unit is defective.
Corrective measures:
• Ensure that the voltage supply is correctly connected
• If the voltage supply is connected correctly, replace
the power supply unit.
User Interface and Display
Problem
Cause and corrective measure
The user interface is not displayed
properly.
JavaScript is deactivated in the web browser.
Corrective measures:
• Activate JavaScript in the web browser.
7 Troubleshooting
SMA Solar Technology AG / SMA America, LLC
Installation Manual
ClusterController-IA-en-14
76