SMA SUNNY BOY 2000HF - Page 73

SMA Solar Technology AG Messages
Installation Guide SB20_25_30HF-IEN102911 73
74 < Varistor defective > • Check the varistors as described in
section 11.2”Checking the
Functioning of the Varistors”
(page76).
75 < Fan fault >
< Clean fan >
• Check heat dissipation as described
in section 9.1”Checking Heat
Dissipation” (page63).
77 < Self diagnosis >
< Interference device >
• Contact the SMAServiceline (see
section 15”Contact” (page93)).
80 < Derating occurred >
The delivered power of the inverter was
reduced below nominal power due to a
too-high temperature for more than
10minutes.
If this event occurs often:
• Ensure sufficient ventilation.
• Check heat dissipation as described
in section 9.1”Checking Heat
Dissipation” (page63).
81 < Comm. disturbed >
A fault has occurred in the internal
communication of the inverter. However,
the inverter continues feeding into the grid.
If this event occurs often:
• Contact the SMAServiceline (see
section 15”Contact” (page93)).
90 < Inst. code invalid >
The SMAGridGuard code entered
(personal installer password) is invalid.
• A valid SMAGridGuard code has
been entered.
< Grid param. locked >
The actual country data set is locked.
• Enter the valid SMAGridGuard
code for changing the country data
set.
< Abort self-test > • Contact the SMAServiceline (see
section 15”Contact” (page93)).
< Changing grid param. not possible >
• The selected rotary switch setting for
the country configuration is not
programmed.
• The parameters to be changed are
protected.
< Ensure DC supply >
The DC supply for the writing
procedure is not sufficient.
• Check setting of the rotary switch
(see section 5.3.2”Checking the
Country Standard” (page25)).
• Enter the SMAGridGuard code
• Ensure sufficient DC voltage is
available.
Event no. Display message and cause Corrective measures