13 Cleaning and Maintenance
SMA Solar Technology AG
Operating manual
127
SI44M-80H-13-BE-en-15
13 Cleaning and Maintenance
13.1
Cleaning and Checking the Sunny Island Inverter Enclosure
NOTICE
Damage to the product due to cleaning agents
The use of cleaning agents may cause damage to the product and its components.
• Clean the product and all its components only with a cloth moistened with clear water.
Procedure:
• Ensure that the inverter is free of dust, foliage and other dirt. Carefully remove heavy dirt with a soft brush.
13.2
Checking the Function
Testing period
• For new systems, check every week during the 6 months following commissioning whether error messages have
been logged. This will reveal any hidden errors in the installation or configuration.
• For all other systems, check every 6 months whether error messages have been logged.
Procedure:
1. Activate the user interface of the inverter (see Section 8.1, page 104).
2. Log in as User (see Section 8.2, page 107).
3. Select the menu
Events
.
4. Set filter. Activate
Warning
and
Error
. Deactivate
Information
.
5. Set the desired time period and select [
Apply time filter
].
6. If error messages have been logged, eliminate the cause (see Section 14.2, page 140).
13.3
Checking the Connections
DANGER
Danger to life due to electric shock when live components or cables are touched
High voltages are present in the conductive components or cables of the product. Touching live parts and cables
results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Disconnect the product from voltage sources and ensure it cannot be reconnected before working on the
device.
• After disconnection, wait 15 minutes until the capacitors have discharged.
• Observe all safety information on components associated with the product.
• Wear suitable personal protective equipment for all work on the product.
1. Disconnect the Sunny Island from voltage sources (see Section 12, page 126).
2. Ensure that the cables on the
DC+
and
DC‒
connections are securely fastened (torque: 12 Nm).
3. Ensure that the connections are free of corrosion.
4. Ensure that the cables in the
AC1
and
AC2
connections are securely fastened.
5. Close the Sunny Island (see the Sunny Island inverter installation manual).
6. Switch on all load-break switches and miniature circuit breakers (see Section 13.11, page 139).
