FANOX SIA-F, User Manual

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5.10. Self-diagnosis
Diagnostic algorithms are run while the device is being started up and continuously when the relay
is operating. This diagnostic is a preventative process to guarantee that the device is in good
operational condition.
As general considerations, we should point the following:
•
Communications between different CPUs are confirmed by the corresponding integrity
checking. If continuous anomalies are detected, the device will be reset.
•
Data related to set values are confirmed by the corresponding checking. Likewise, all
setting groups are doubled, and the relay has the capability for working with a damage
setting group, but not with two damaged setting groups.
•
There is a Watchdog device both between and in main CPUs. If any CPU goes out of
operation the device will be reset and this condition will be identified as an event.
The following state bits are associated with this process:
Measurement error Problem in the measurement block
Protection error Problem in the protection block
Eeprom error Problem in the eeprom memory, some group is corrupt
Events error Error in the register of events
On the other hand, “Default settings” means that the device is operating under factory settings,
being all protection functions disabled.
5.11. Commands
By HMI o by communications is possible to (depending on model):
•
Open Breaker
•
Close Breaker
•
Reset
•
Reset Thermal Image