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7SV512
V1
6.4
Annunciations
6.4.1
Introduction
After a network fault, annunciations and messages
provide a survey of important fault data and the func-
tion of the relay, and serve for checking sequences
of functional steps during testing and commission-
ing. Further, they provide information about the con-
dition of measured data and the relay itself during
normal operation.
To read out recorded annunciations, no codeword
input is necessary.
The annunciations generated in the relay are pres-
ented in various ways:
--- LED indications in the front plate of the relay (Fig-
ure 6.1),
--- Binary outputs (output relays) via the connections
of the relay,
--- Indications in the display on the front plate or on
the screen of a personal computer, via the operat-
ing interface,
--- Transmission via the serial interface to local or re-
mote control facilities (optional).
Most of these annunciations can be relatively freely
allocated to the LEDs and binary outputs (see Sec-
tion 5.5). Also, within specific limitations, group and
multiple indications can be formed.
To call up annunciations on the operator panel, the
following possibilities exist:
--- Block paging with the keys Ý forwards or ß back-
wards up to address 5000,
5 0 0 0
A N N U N C I A T I O N S
A comprehensive list of the possible annunciations and output functions with the associated function number
FNo is given in Appendix C. It is also indicated to which device each annunciation may be routed.
C53000---G1176---C91
--- Direct selection with address code, using key DA,
address 5 0 0 0 and execute with key E,
--- Press key M/S (M stands for "messages", S for
"signals"); then the address 5000 appears auto-
matically as the beginning of the annunciation
blocks.
For configuration of the transfer of annunciations to
a central processing device or localized substation
automation system, the necessary data are entered
in block 69 (see Section 5.6).
The annunciations are arranged as follows:
Block 51 Operational annunciations; these are
messages which can appear during the
operation of the relay: information about
condition of relay functions, measure-
ment data etc.
Block 52 Event annunciations for the last fault; pick-
up, trip, or similar.
Block 53 Event annunciations for the previous net-
work fault, as block 52.
Block 54 Event annunciations for the last but two
network fault, as block 52.
Block 56 Annunciations for CB operation statistics,
that is counters for tripping commands,
together with accumulated short circuit
currents of each breaker pole.
Block 57 Indication of operational measured val-
ues (currents).
Commencement of "annunciation blocks"
Operating instructions
83
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