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Protection Concept
The micro controller continuously and
simultaneously monitors and displays the
following parameters. Numbers 1 to 3
refer to the energy units 1 to 3:
The numbering 1 to 3 refers respectively
to the performance unit 1 to 3:
98
Error No.
001
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
Description
DC overvoltage 1
DC overvoltage 2
DC overvoltage 3
Frequency fault 1
Frequency fault 2
Frequency fault 3
Overheating of heat sink 1
Overheating of heat sink 2
Overheating of heat sink 3
Grid undervoltage 1-phase 1
Grid undervoltage 1-phase 2
Grid undervoltage 1-phase 3
Grid overvoltage 1-phase 1
Grid overvoltage 1-phase 2
Grid overvoltage 1-phase 3
Grid undervoltage 3-phase
AFI fault 1
AFI fault 2
AFI fault 3
Insulation fault 1
Error
No.021
022
023
024
025
026
027
028
029
030
031
032
033
034
035
036
038
Description
Insulation fault 2
Insulation fault 3
DC injection 1
DC injection 2
DC injection 3
Isolated operation
Grid overvoltage 3-phase
Surge fault 1
Surge fault 2
Surge fault 3
Grid voltage 10 minutes mean value
> 10 percent U
nominal
1
Grid voltage 10 minutes mean value
> 10 percent U
nominal
2
Grid voltage 10 minutes mean value
> 10 percent U
nominal
3
Control circuit board 1 fault
Control circuit board 2 fault
Control circuit board 3 fault
Back-up battery empty
BP13370_NT_10000_englisch 23.11.2005 17:40 Uhr Seite 14