SMA Solar Technology AG
11 Operating Data and Parameters
11.1
Operating Data
11.1.1 Inverter
11.1.1.1 Power Limitation
Errors and warnings relating to active power limitation
Name
P-WModFailStt
Status messages of active power limitation
Name
P-WModStt
User Manual
Display
Description
Off
No mode for active power limitation has been selected.
Ok
A mode for active power limitation has been selected and no error is
present.
ComFail
The mode WCtlCom has been selected and the expected signal with
a valid active power limitation has been absent for at least five min-
utes.
AnInFail
The mode WCnstNomAnIn has been selected and the value mea-
sured at the analog input is less than 2 mA.
ComInvalid
The mode WCtlCom has been selected and there is invalid content
in the power setpoint information.
Display
Description
Off
No mode for active power limitation has been selected.
WMax
Active power is limited by specification of an upper limit. This limit is
based on Pmax.
Hz
Active power is limited by a frequency increase.
Tmp
Active power is limited by temperature derating.
AmpPv
Active power is limited via a PV current limitation.
AmpAC
Active power is limited via an AC current limitation.
SMax
The active power is limited by the maximum apparent power.
Q-VAr
The active power is limited due to the priority of the reactive power
setpoint.
QEnsure
The active power is limited due to the intermediate storage of reac-
tive power.
P-Vtg
The active power is limited due to the characteristic curve P(V).
VdcMax
The active power is increased via the setpoint due to the DC voltage
being too high.
AmpPvOptiprot
For the order option "Optiprotect", the active power is limited due to
switch currents being too high.
11 Operating Data and Parameters
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