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SMA CLUSTER CONTROLLER Installation User Manual

Page 76

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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

(see Section 6.14, page 70).

• 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