An indication about the fault is shown as a message on the LHMI. The text Internal
Fault with an additional text message, a code, date and time, is shown to indicate the
fault type.
Different actions are taken depending on the severity of the fault. The protection relay tries
to eliminate the fault by restarting. After the fault is found to be permanent, the protection
relay stays in the internal fault mode. All other output contacts are released and locked for
the internal fault. The protection relay continues to perform internal tests during the fault
situation.
The internal fault code indicates the type of internal relay fault. When a fault appears, the
code must be recorded so that it can be reported to ABB customer service.
A071144-ANSI V1 EN
Figure 80: Fault indication
Table 18: Internal fault indications and codes
Fault indication
Fault code Additional information
Internal Fault
System error
2 An internal system error has occurred.
Internal Fault
File system error
7 A file system error has occurred.
Internal Fault
Test
8 Internal fault test activated manually by the
user.
Internal Fault
SW watchdog error
10 Watchdog reset has occurred too many
times within an hour.
Internal Fault
SO-relay(s),X100
43 Faulty Signal Output relay(s) in card
located in slot X100.
Internal Fault
SO-relay(s),X110
44 Faulty Signal Output relay(s) in card
located in slot X110.
Internal Fault
SO-relay(s),X120
45 Faulty Signal Output relay(s) in card
located in slot X120.
Table continues on next page
1MAC054853-MB B Section 7
Troubleshooting
615 series ANSI 111
Operation Manual
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