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5.12. Self-diagnosis
Diagnostic algorithms are run on device Pickup and continuously during operation of the relay.
These diagnostics guarantee the correct working of the device, as a preventive process.
The following general considerations apply:
•
Communications between different CPUs are confirmed with corresponding integrity
checks. Continuing anomalies will lead to the restarting of the device.
•
Data constituting settings are confirmed with corresponding checks. Furthermore, all
tables of settings are stored in two copies. The relay is capable of working with a corrupted table,
but not if both tables are corrupted.
•
A WatchDog mechanism exists, both between and within the different main CPUs. Loss
of activity in any CPU will lead to the restarting of the device, which will be logged as an event.
The state flag bits associated with this process are as follows:
Measurement error
Problem in measurement block
Protection error
Problem in protection block
EEPROM error
Problem in EEPROM memory, one of the tables is corrupted
Conversely, “Default settings” indicates that the relay is working with the factory settings, with all
protection functions deactivated.
Summary of Contents for SIL B
Page 1: ...EN_FANOXTD_MANU_SIL_Feeder_SILB_R023 Docx USER S MANUAL SIL B Feeder Relay...
Page 8: ...www fanox com Rev 23 8 311 2 DIMENSIONS AND CONNECTION DIAGRAMS 2 1 Equipment front view...
Page 9: ...www fanox com Rev 23 9 311 2 2 Equipment dimensions...
Page 10: ...www fanox com Rev 23 10 311...
Page 11: ...www fanox com Rev 23 11 311 2 3 Cut out pattern CUT OUT PATTERN...
Page 12: ...www fanox com Rev 23 12 311 2 4 Connection diagrams Analog connections...
Page 13: ...www fanox com Rev 23 13 311...
Page 14: ...www fanox com Rev 23 14 311 Digital connections Outputs and Trip circuit supervision...
Page 15: ...www fanox com Rev 23 15 311 2 5 Terminals IEC 61850 or DNP3 0 protocols...
Page 17: ...www fanox com Rev 23 17 311 IEC 60870 5 103 protocol...
Page 25: ...www fanox com Rev 23 25 311 3 3 Functional diagram...
Page 28: ...www fanox com Rev 23 28 311 3 5 1 SIL B 1 CHARGE CURVE 3 5 2 SIL B 5 CHARGE CURVE...
Page 91: ...www fanox com Rev 23 91 311...
Page 140: ...www fanox com Rev 23 140 311...
Page 194: ...www fanox com Rev 23 194 311 Polarization V 35 0 V C Operating Angle 180 C Halfcone Angle 3 C...
Page 307: ...www fanox com Rev 23 307 311 50BF init Fault init 79 Closure permission 52 closure permission...
Page 310: ...www fanox com Rev 23 310 311 NOTES...
Page 311: ...www fanox com Rev 23 311 311...
