Replacing The Micro Sd Card - SMA SUNNY ISLAND 4.4M Operating Manual

SMA Solar Technology AG
Check and log the status of the battery before performing maintenance work.
Transition resistances can impair the performance of the batteries.
• Ensure that the torques at the battery connections are correct each time that maintenance is performed.
Procedure:
1. Stop the system and switch off the Sunny Island (see Section 10, page 124).
2. Ensure that the battery is not grounded unintentionally.
If the battery is unintentionally grounded, identify the connection between the battery and ground potential and
remove the unintentional connection. This helps to prevent electric shock caused by malfunction of other system
devices.
3. Open the load-break switch of the battery fuse and secure against reconnection.
4. Remove the battery to be replaced (see battery manufacturer's manuals).
5. Mount and connect the new battery (see manuals of the battery manufacturer). The battery must comply with the
technical requirements of the Sunny Island inverter (refer to the Sunny Island inverter installation manual for
technical data of the DC connection).
6. Quickly close the load-break switch of the battery fuse and close the battery fuse (see battery fuse
documentation).
7. Switch the Sunny Island on (see Section 10.1, page 124).
8. Activate the user interface of the inverter (see Section 8.1, page 110).
9. Log in as Installer (see Section 8.2, page 112).
10. Start the installation assistant.
11. Select [Save and next] for each step up to the step Battery configuration.
12. Select the button [New battery configuration].
13. Set the parameter Type to the battery type used.
14. Only make the following settings for lead-acid batteries.
• Set the parameter Voltage to the battery voltage.
• Set the parameter Nominal capacity to the C10 nominal capacity of the battery (see Section 9.8.1
"Determining the Battery Capacity", page 122).
15. Select [Save and next] until the installation assistant closes.

14.10 Replacing the Micro SD Card

Danger to life from electric shock due to high voltages
High voltages are present inside the inverter. When the enclosure lid is removed, live components can be touched
that can result in death or serious injury due to electric shock.
• Disconnect the inverter from all voltage sources (see Section 13, page 132).
• After switching off the inverter, wait at least 15 minutes before opening the inverter to allow the capacitors to
discharge completely.
Operating Manual
14 Cleaning and Maintenance
SI44M-80H-12-BE-en-10 141