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9 System Decommissioning
9.1 Decommissioning the Inverter
Please strictly follow the following procedure. Otherwise it will cause
lethal voltages or unrecoverable damage to the inverter.
Powering off the Inverter
1. Stop the inverter via the LCD menu. For details, see “10.3 Starting and
Stopping the Inverter”.
2. Disconnect the AC circuit breaker and secure it against reconnection.
3. Rotate the DC switch to “OFF”. The DC switch may be integrated on the
inverter bottom or installed by the customer.
4. Disconnect the DC circuit breaker between the battery and the inverter.
Risk of burn injuries and electric shock!
Do not touch any inner live parts until 10 minutes after disconnecting
the inverter from the utility grid, the PV inputs and the battery module.
Do not power on the system again until 1 minute after the
disconnection.
5. Wait for about 10 minutes until the capacitors inside the inverter have
completely discharged.
6. Measure and ensure that no voltage is present at the AC output on the
inverter.
7. Refer to “6.3 Grid Connection” to disconnect the AC connector from the
inverter in reverse procedure.
8. Release the locking part of DC connectors by pressing on the ribbing of
the locking hooks with nipper pliers and pull it outwards.
9. Use the multimeter to measure the port voltage of the battery.
Disconnect the power cables after the voltage is zero.
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