External Shutdown

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This status code indicates that the Fronius Primo GEN24 208-240 inverter has received an external shutdown command. This typically originates from an external control device, such as a ripple control receiver or utility command, or a wiring issue in the external control input.

• An external control signal (e.g., from a utility ripple control receiver) is active, commanding the inverter to shut down.
• A wiring issue to the external control input, such as damage or an incorrect connection, is falsely activating the shutdown command.

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1. 1

   Check the status of the external control device (e.g., ripple control receiver) to ensure it is not issuing a shutdown command.

2. 2

   Inspect the wiring to the external control input for any damage or incorrect connections.

3. 3

   Ensure the external control signal is deactivated if system operation is desired.

4. 4

   De-energize the inverter (switch off AC and DC disconnects), wait for 5 minutes, then re-energize. If the message persists, the inverter may require service.