SMA SB 2500TL-21 Installation - Manual (Page 44)

Electrical Connection SMA Solar Technology AG
44 SB25-30TLST-21-IA-en-13 Installation Manual
SMA Grid Guard-Protected Country Data Sets
In some countries, the local connection conditions demand a mechanism which prevents the feed-in
parameters from being changed. Therefore, certain country data sets are protected against
unauthorised changes. They can only be unlocked with a personal access code - the
SMA Grid Guard code.
SMA Grid Guard-protected country data sets are automatically locked for ten feed-in hours after
commissioning, or after the last alteration. If the country data set is changed after these ten feed-in
hours, the inverter will not apply the changes but display the error message "Grid param. locked".
If, however, a later change to the country data set only relates to a change of the display language
via the rotary switches in the inverter, this change is immediately applied.
It is also possible to configure country data sets (parameter "CntrySet" or "Set country standard"), and
to lock or unlock these manually via a communication product. To lock a data set, enter the digit
sequence "54321" instead of the password in the SMA Grid Guard code field. The data set can only
be unlocked by entering a personal, ten-digit SMA Grid Guard code which is valid for a maximum
of ten feed-in hours. The application form for the personal access code is available at
www.SMA.de/en, in the "Certificate" category of the respective inverter.
The language can be configured without a password, regardless of the country data set.
The last change (executed via rotary switch or communication product) is always verified and
activated if applicable. Consequently, the switch position may not necessarily show the actual country
setting.
Changing parameters in SMA Grid Guard-protected country data sets
If the parameters within protected country data sets are changed, these are no longer
protected and instead of the standard "ADJ" or "Special setting" is displayed. In this case,
a change to parameters is not locked automatically after ten feed-in hours, but has to be
locked manually. To manually lock the parameters, set the SMA Grid Guard code to
"54321".
Further information on parameter settings
For detailed information on making adjustments and changing parameters, see the
corresponding user manual for your communication product.