Fronius CL - Page 102

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904
String control detected deviation on measuring channel 4
Cause: Snow-covered solar modules
Remedy: Clean or remove snow from solar modules and adjust threshold value in Fro-
nius Solar.access
Cause: Solar module or cable defective
Remedy: Check solar modules
Cause: Set parameter is too sensitive
Remedy: Make correct parameter setting
905
String control detected deviation on measuring channel 5
Cause: Snow-covered solar modules
Remedy: Clean or remove snow from solar modules and adjust threshold value in Fro-
nius Solar.access
Cause: Solar module or cable defective
Remedy: Check solar modules
Cause: Set parameter is too sensitive
Remedy: Make correct parameter setting
998
Monitoring ring not functional for 24 h
Cause: Data ring is open (cable break)
Remedy: Check data line
Cause: Defective component blocks communication
Remedy: Set up ring with only one inverter and expand step-by-step to locate defective
components
999
An inverter has not communicated with the datalogger for 24 h
Cause: Solar modules defective or very dirty
Remedy: Check solar modules and, if necessary, clean them
Cause: Inverter ComCard defective
Remedy: Check the ComCard of the affected inverter