46
SCI Failure Internal communication failure
DC Bus High Overhigh BUS voltage
Ref 2.5V Failure 2.5V reference voltage failure
AC HCT Failure Output current sensor failure
GFCI Failure Detection circuit of ground leakage current failure
Vac Failure Grid voltage no longer within permissible range
Second level menu error codes
Table 4.4-2 Description of Error Code
Error
Code
Description
01 Communication between microcontrollers is failing
02 EEPROM cannot be read or written
03 The master-frequency is out of tolerable range
04 The slave-frequency is out of tolerable range
05 NA
06 NA
07 Relay has failed
08 NA
09 Different value between Master and Slave for grid voltage
10 Different value between Master and Slave for grid frequency
11 NA
12 Different value between Master and Slave for Fac, Uac
13 The DC injection check for grid Current has failed
14 Isolation resistance of PV-plant out of tolerable range
15 Master-grid voltage measurement-value out of tolerable range
16 Fan Lock
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