SMA SC 400HE - Manual (Page 45)

SMA Solar Technology AG 4 Sunny Central Control
Operating Manual SC4-63HE-BE-BEN103280 45
The analog value is converted to a target value for power limitation. Here, the "Pmax" parameter is
the end point of the linear characteristic curve.
4.7.7 Displaying Error Messages and Warnings for Active Power
Limitation
The "P-WModFailStt" channel displays the error messages or warnings associated with active power
limitation.
Displaying the "P-WModFailStt" Channel
• Display spot value of the " P-WModFailStt" channel on the Sunny Central Control user interface
(see section 9.2 "Red.effect.pow.", page 92).
Used parameters none
Display Description Measure
Off No procedure for limiting active power
has been chosen. None
OK A procedure for limiting active power
has been chosen and there are no
errors. None
ComFail The "WCtlCom" procedure has been
chosen and the expected signal with a
valid active power limitation has been
absent for at least 5 minutes. • Check whether
Sunny Central Control is working.
• Check whether the
Sunny Central Control can be
accessed from outside and is
displaying the data of the inverter.
• Check whether the cables
between the
Sunny Central Control and the
inverters are OK.
• Check whether the cables inside
the Sunny Central Control are OK.
AnInFail The "WCnstNomAnIn" procedure has
been chosen and the value measured at
the analog input is less than 2 mA. • Check the analog input.