Auxiliary Functions; Message Processing; Led Displays And Binary Outputs (Output Relays) - Siemens SIPROTEC 7SJ61 Manual
Multi-functional protective relay with bay controller
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Also See for SIPROTEC 7SJ61:
- Technical data manual (58 pages) ,
- Manual (94 pages) ,
- Manual (72 pages)
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2.17
Auxiliary Functions
The auxiliary functions of the 7SJ61 relay include:
• Message Processing
• Measurements (including acquisition of minimum and maximum values)
• Setting of Limit Values for Measured Values and Statistic Values
• Commissioning Tools
2.17.1
Message Processing
After the occurrence of a system fault, data regarding the response of the protective relay and the measured
values are saved for future analysis. For this reason the device is designed to perform message processing.
Applications
• LED Display and Binary Outputs (Output Relays)
• Information via Display Field or Personal Computer
• Information to a Control Center
Prerequisites
The SIPROTEC 4 System Description provides a detailed description of the configuration procedure (see /1/).
2.17.1.1 LED Displays and Binary Outputs (Output Relays)
Important events and conditions are displayed, using LEDs at the front panel of the relay. The device further-
more has output relays for remote indication. All LEDs and binary outputs indicating specific messages can be
freely configured. The relay is delivered with a default setting. The Appendix of this manual deals in detail with
the delivery status and the allocation options.
The output relays and the LEDs may be operated in a latched or unlatched mode (each may be individually set).
The latched conditions are protected against loss of the auxiliary voltage. They are reset:
• On site by pressing the LED key on the relay,
• Remotely using a binary input configured for that purpose,
• Using one of the serial interfaces,
• Automatically at the beginning of a new pickup.
State indication messages should not be latched. Also, they cannot be reset until the criterion to be reported
has reset. This applies to messages from monitoring functions, or similar.
A green LED displays operational readiness of the relay ("RUN"), and cannot be reset. It goes out if the self-
check feature of the microprocessor recognizes an abnormal occurrence, or if the auxiliary voltage is lost.
When auxiliary voltage is present, but the relay has an internal malfunction, then the red LED ("ERROR") lights
up and the processor blocks the relay.
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
Functions
2.17 Auxiliary Functions
213
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