Fronius Selectiva 4185 Operating Instructions Manual page 44

Status codes in the event of a fault in the controller
Number
(540)
(541)
(542)
(543)
(544)
(545)
(546)
(547)
(548)
(549)
(550)
(551)
(552)
44
Cause
Configuration memory chip missing/faulty
No secondary communication
Secondary initialisation failed
Program/memory fault in characteristic control
Program/memory fault in characteristic control
Primary initialisation failed
Update failed
Load/save settings failed
Load/save characteristic settings failed
Charging could not be resumed after a power failure
Time not set
Hardware change detected
Configuration memory chip invalid