11 Operating Data and Parameters
SMA Solar Technology AG
User Manual 137SCCPXT-E7-BA-en-58
11.2.1.4 Insulation monitoring
Name Description Value/range Explanation Default
value
IsoMod Hardware selection for
insulation monitoring and
ground-fault monitoring
--- No insulation monitoring and
ground-fault monitoring
---
Gfdi GFDI
RemGdfi Remote GFDI
IsoMeas Insulation monitoring
IsoMeasGfdi Insulation monitoring with GFDI
IsoMeasRemGfdi Insulation monitoring with Re-
moteGFDI
SoftGndDold Soft Grounding
IsoMeasSoftGndD Insulation monitoring with
SoftGrounding
USRemGFDI Remote GFDI for the U.S.
AutoUSRemGFDI Automatic Remote GFDI for the
U.S.
IsoErrIgn* Ignore insulation error Off Deactivated Off
On Activated
Run Error is only ignored when the in-
verter is in feed-in operation.
RemMntSvc PV array grounding is
deactivated.
Off Deactivated Off
On Activated
RisoCtlWarn Warning threshold for
the insulation monitoring
device iso-PV1685
0kΩ to 500kΩ ‒ 45kΩ
PvVtgRisoStart Start voltage of insulation
measurement
0V to 1,200V SunnyCentral500CPXT 250V
SunnyCentral630CPXT
SunnyCentral720CPXT
SunnyCentral760CPXT
SunnyCentral800CPXT
SunnyCentral850CPXT
SunnyCentral900CPXT
SunnyCentral1000CPXT