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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 “10.6 Starting and
Stopping the Inverter”.
2. Disconnect the AC circuit breaker and secure against reconnection.
3. Rotate the DC switch to “OFF”. The DC switch may be integrated in SH5K or
installed by the customer.
4. Disconnect the DC circuit breaker between the battery and the inverter.
Risk of burn injuries and electric shock!
Wait at least 10 minutes after disconnecting the inverter from the utility
grid and the PV input before touching any inner live parts.
Don’t power on the system again until 1 minute after this disconnection.
5. Wait for about ten 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”, 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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