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2.26
Auxiliary Functions
The general functions of the device are described in the Auxiliary Functions chapter.
Message Processing
2.26.1
After the occurrence of a system fault, information regarding the response of the protective relay and the
measured values is important for a detailed analysis. An information processing function in the device takes
care of this.
The procedure for allocating information is described in the SIPROTEC 4 System Description.
Applications
•
LEDs and binary outputs
•
Information on the Operation Panel
•
Information via the Web Monitor
•
Information to a control center
Prerequisites
The SIPROTEC 4 System Description provides a detailed description of the configuration procedure
(see
/1/ SIPROTEC 4 System
LEDs and Binary Outputs (Output Relays)
2.26.1.1
Important events and conditions are indicated via LEDs on the device or via the Web Monitor. The device
furthermore features output relays for remote signaling. Most of the indications and displays can be allocated,
i.e. configured differently from the delivery condition. The Appendix of this manual deals in detail with the
delivery condition and the allocation options.
The output relays and LEDs may be operated in a latched or unlatched mode (each may be set individually).
The latched conditions are protected against loss of the auxiliary voltage. They are reset
•
Using the optional operation panel or the Web Monitor by pressing the Reset targets button,
•
via a correspondingly configured binary input,
•
automatically at the beginning of a new pickup.
Condition indications should not be latched. They also cannot be reset until the criterion to be reported has
been canceled. This applies, for example, to indications from monitoring functions or similar.
A green LED indicates operational readiness of the relay ("RUN"); it cannot be reset. It goes out if the self-check
feature of the microprocessor detects a fault or if the auxiliary voltage fails.
When auxiliary voltage is present but the relay has an internal malfunction, then the red LED ("ERROR") lights
up and the device is blocked.
Another LED indicates the charging state of the external battery. You will find details about this in Section
2.1.2 Device, General
The OPEN and CLOSE keys, the NUM LOCK key and the LOCK PB key indicate their actuation state via the
integrated LED. For more details, see Section
2.26.1.2
Information via Display Panel or PC
Events and conditions can be read from the display panel of the Web Monitor. A PC to which the information is
then sent can be connected via the USB interface or port F of the device.
The device is equipped with several event buffers for operational indications, circuit breaker statistics etc.,
which are protected against loss of the auxiliary voltage by a buffer battery. Reading indications during opera-
tion is described in the Web Monitor section and in the SIPROTEC 4 System Description.
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
Description).
Settings.
2.28 Notes on Device
2.26 Auxiliary Functions
Operation.
Functions
361
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