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7SV512
V1
6.5.2
Erasing stored annunciations and counters --- address block 82
The statistical indications (Section 6.4.4, address
5600) are stored in EEPROMs in the device. They
are therefore not erased if the auxiliary power supply
fails. Additionally, annunciations and the status of
the LED memories are stored in NV---RAMs and are
thus saved provided the back-up battery is installed.
These stores can be cleared in block 82. Block 82 is
called up by paging with the keys Ý or ß or directly by
keying in the code DA 8 2 0 0 E. With the exception
8 2 0 0
R E S E T
8 2 0 1
R E S E T
L E D
?
8 2 0 2
R E S E T
C O U N T E R S
8 2 0 3
R E S E T
T O T A L
I s c
8 2 0 4
R E S E T
O P E R A T . A N N U N C .
?
8 2 0 5
R E S E T
F A U L T
A N N U N C .
During erasure of the stores the display shows TASK IN PROGRESS. After erasure the relay acknowledges
erasure, e.g.
8 2 0 2
R E S E T
E X E C U T E D
94
Beginning of block "Reset"
Request whether the LED memories should be reset
Request whether the CB operation counters should
be set to zero
?
Request whether the total of switched short-circuit
currents should be set to zero
?
Request whether the operational annunciation buffer
store should be erased
Request whether the fault annunciation buffer store
should be erased
?
of resetting the LED indications (address 8201), co-
deword entry is necessary to erase the stored items.
Reset is separate for the different groups of count-
ers, memories and annunciations. One reaches the
individual items by paging " #. Erasure requires
confirmation with the key J/Y. The display then con-
firms the erasure. If erasure is not required, press
key N or simply page on.
Operating instructions
C53000---G1176---C91
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