Incorrect or unset grid code

ID: fm:grid-code-misconfiguration
IRI: https://solarlattice.org/kb/fm/grid-code-misconfiguration
Status: active
Also known as: wrong country data set, country data set not set, No country data set set, wrong grid type, country code not set, no country data set, incorrect country setup, SMA default, country data set, grid type, country standard, Grid code, country code

This fault happens when the inverter's grid code, country data set or grid type is missing or does not match the country, the local standards or the site. A wrong setting can disturb the PV system and cause problems with the grid operator. The grid code changes grid-related parameters such as the power factor and reactive power settings, so the inverter can run with the wrong protection and control behavior. To confirm, open the Grid monitoring parameter group and check the Set country standard parameter. To fix it, select the country data set or grid code that fits the site and its application. After the first 10 operating hours, SMA inverters need the installer's SMA Grid Guard code before grid parameters can be changed, and a wrong code leaves them locked. If you are not sure which standard applies, contact the grid operator before you change the setting.

<!-- review notes

sentence 3: support check: partial - Passages show grid-code-dependent PF and Q(U) parameter defaults, but not that the inverter runs with wrong protection and control behavior.
sentence 7: support check: partial - Passages say to contact the grid operator if unsure, but do not specify doing so before changing the setting (though implied by the selection context).
sentence 1: review: partial - The passages support a country data set, grid type or grid code that is wrong for the country, its standards or the system, but say nothing about a missing or unset code. -->

Claims

`affects`

c1 drafted · lead Inverter

The grid code or country data set is an inverter parameter (for example Set country standard under Grid monitoring).

Huawei SUN2000-100KTL-USH0 User Manual tbl=24.r1 h=08b17e435759
259761 sec=h323 h=d68178149130
SHPxxx-US-21-BE-en-11 tbl=34 h=46801c51f609
280451 tbl=3.r1 h=d352f96fc19c

`caused_by`

c2 drafted · lead Installation error

The installer picks a country data set or grid type that does not fit the country, the local standards or the system properties.

280451 sec=h16 h=b6e62ef0fd02
278742 sec=h339 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h233 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h402 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h234 h=8871fd16517d
SBSExx-US-50-BE-en-11 sec=h403 h=7b53c9f55dc0
sbsexx-us-50-parameters-for-country-data-set sec=h3 h=48eb59b6cb5a

`presents_as`

c3 drafted · lead Grid instability

SMA warns that a wrong country data set or grid type can disturb the PV system and cause problems with the grid operator.

280451 sec=h16 h=b6e62ef0fd02
278742 sec=h339 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h233 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h402 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h234 h=8871fd16517d
SBSExx-US-50-BE-en-11 sec=h403 h=7b53c9f55dc0
sbsexx-us-50-parameters-for-country-data-set sec=h3 h=48eb59b6cb5a

review note: support check: partial - Passages say wrong data set/grid type can disturb the PV system and cause grid operator problems, but not literally 'grid instability'.

c4 drafted · lead Parameter change rejected

When you try to correct the setting with a wrong SMA Grid Guard code, event 9002 appears and the grid parameters stay locked.

259761 tbl=72.r2 h=ce2ed8a1ddf6
278742 tbl=76.r2 h=ce2ed8a1ddf6
SBxx-US-1XP-40-BA-en-13 sec=h249 h=e1adee9857f4
shpxxus20-event-messages tbl=1.r49 h=6a9b8c71bb4f
STP33-62-US-41 ops manual tbl=11.r2 h=ac6479fb8aba
SHPxxx-US-21-BE-en-11 sec=h441 h=7b9916244398
STP33-62-US-41-BA-en-13 tbl=22.r2 h=ac6479fb8aba
STP33-62-US-41-BA-en-14 tbl=23.r2 h=ac6479fb8aba
stpxx-us-41-event-messages tbl=1.r50 h=6a9b8c71bb4f

review note: support check: partial - Event 9002 with locked parameters on a wrong Grid Guard code is stated, but its link to correcting an incorrect grid code is inferred, not stated.

`detected_by`

c5 drafted · lead Inverter settings review

Check the Set country standard parameter (channel CntrySet or Country) in the Grid monitoring group.

259761 sec=h323 h=d68178149130
278742 sec=h341 h=077a63957340
SHPxxx-US-21-BE-en-11 tbl=34 h=46801c51f609
280451 tbl=3.r1 h=d352f96fc19c
280451 tbl=3 h=4a946ae27040
sbsxx-us-10-configuring-the-country-data-set sec=h1 h=89ecd79fa258
STP33-62-US-41 ops manual sec=h70 h=d68178149130

review note: support check: partial - Passages identify the Set country standard parameter and its group/channels, but only as the setting procedure, not as a detection/review step.

`mitigated_by`

c6 verified · fact Grid settings check

Set the required country data set or grid code for the country or region and the application. SolarEdge sets the general USA country code to get typical IEEE 1547 settings.

259761 sec=h323 h=d68178149130
278742 sec=h341 h=077a63957340
sbsxx-us-10-configuring-the-country-data-set sec=h1 h=89ecd79fa258
STP33-62-US-41 ops manual sec=h70 h=d68178149130
iso new england configuration instructions na sec=h6 h=a5ac09456aca
Huawei SUN2000-100KTL-USH0 User Manual tbl=24.r1 h=08b17e435759

verified by: review-workflowverified on: 2026-10-24

c7 verified · fact Utility company consultation

Contact the grid operator if you are unsure which standards and directives apply.

280451 sec=h16 h=b6e62ef0fd02
278742 sec=h339 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h233 h=b6e62ef0fd02
SBSExx-US-50-BE-en-11 sec=h402 h=b6e62ef0fd02

verified by: review-workflowverified on: 2026-10-24

c8 verified · fact Correct access code entry

After the first 10 operating hours, the grid-relevant parameters can only be changed with the personal SMA Grid Guard code.

259761 tbl=72.r2 h=ce2ed8a1ddf6
278742 tbl=76.r2 h=ce2ed8a1ddf6
shpxxus20-event-messages tbl=1.r49 h=6a9b8c71bb4f
STP33-62-US-41 ops manual tbl=11.r2 h=ac6479fb8aba
STP33-62-US-41-BA-en-13 tbl=22.r2 h=ac6479fb8aba
STP33-62-US-41-BA-en-14 tbl=23.r2 h=ac6479fb8aba
stpxx-us-41-event-messages tbl=1.r50 h=6a9b8c71bb4f
278879 fig=41 h=9ee6e7e9fa55
278879 sec=5.2.4 h=d6e65891750e
278742 tbl=39.r7 h=f466fb31510c

verified by: review-workflowverified on: 2026-10-24

Referenced by

Grid code setting related_to c9

Incorrect or unset grid code

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