Functions
6-164
7SJ63 Manual
C53000-G1140-C120-1
Figure 6-70
Logic Diagram for the Trip Dependent Messages
6.18.5 Programming Settings
Pickup of a new protective function generally turns off any previously set light displays,
so that only the latest fault is displayed at any time. It can be selected whether the
stored LED displays and the spontaneous messages on the display appear upon re-
newed pickup, or only after a renewed trip signal is issued. In order to enter the desired
type of display, select the sub-menu
'HYLFH
in the
6(77,1*6
menu. The two alter-
natives are selected at address
)OW'LVS/('/&'
.
6.18.6 Statistical Counters
Number of Trips
The number of trips initiated by the 7SJ63 is counted, as long as the position of the
circuit breaker is monitored via breaker auxiliary contacts and binary inputs.
Fault Current
Furthermore, the fault current in each pole of the circuit breaker is determined for each
trip signal. The fault current is indicated in the fault messages and is added to previ-
ously stored fault current values in the statistic-counters to maintain an accumulation
of fault currents, per pole, experienced by the breaker over time.
Operating hours
The operating hours under load are also stored (the current value in at least one phase
is larger than the limit value set under address
%NU&ORVHG,0,1
). The
counter and memory levels are secured against loss of auxiliary voltage.
6.18.7 Setting/Resetting
Setting or resetting of the statistical counters listed above takes place under the menu
item
$1181&,$7,21
→
67$7,67,&
by overwriting the counter values shown.
&
)OW'LVS/('/&'
Relay TRIP
“1“
Trip Signal drop out
Reset LED und LCD-Messages
F# 0511
7DUJHWVRQHYHU\38
7DUJHWVRQ7ULSRQO\
Addr.
LCD-Text
Setting Options
Default Setting
Comments
7110
FltDisp.LED/LCD
Targets on every PU
Targets on TRIP only
Target on every PU Initiation of fault messages on LCD
and LEDs
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