Protection Healthy/Defective; Figure 2-12 Start-Up Events - Siemens 7SR10 Argus Series Manual

7SR10 Description of Operation
2.13.1

Protection Healthy/Defective

When the relay has an auxiliary supply and it has successfully passed its self-checking procedure, then the front
fascia Protection Healthy LED is turned on.
A changeover or open contact can be mapped via the binary output matrix to provide an external protection
healthy signal.
A changeover or closed contact can be mapped via the binary output matrix to provide an external protection
defective signal. With the 'Protection Healthy' this contact is open. When the auxiliary supply is not applied to the
relay or a problem is detected within the relay then this output contact closes to provide external indication.

Figure 2-12 Start-up Events

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