SMA STP 50-40 Operating Manual page 14

2 Safety
Damage to the product due to sand, dust and moisture ingress
Sand, dust and moisture penetration can damage the product and impair its functionality.
• Only open the product if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the product during a dust storm or precipitation.
• Close tightly all enclosure openings.
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any component.
High costs due to inappropriate Internet tariff
Depending on use, the data volume of the product transferred via the Internet may vary in size.
The data volume depends, for example, on the number of devices in the system, the frequency of
device updates, the frequency of data transfer to Sunny Portal or the use of FTP push. High costs
for the Internet connection can be the result.
• SMA Solar Technology AG recommends using an Internet flat rate.
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.
Change to the names and units of grid parameters to comply with the grid-
connection requirements in accordance with Regulation (EU) 2016/631
(valid from April 27, 2019)
To comply with the EU grid-connection requirements (valid from April 27, 2019) the names
and units of grid parameters were changed. This change is valid from firmware version
≥ 3.00.00.R if a country data set for fulfilling the EU grid-connection requirements (valid from
2019-04-27) is set. Names and units of grid parameters for inverters with firmware version
≤ 2.99.99.R are not affected by this change and remain valid. This also applies from firmware
version ≥ 3.00.00.R if a country data set that is valid for countries outside the EU is set.
14 STP50-4x-BE-en-23
NOTICE
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SMA Solar Technology AG
Operating manual