Siemens SIPROTEC 7SJ62 Instruction Manual

Functions
6-164 7SJ62 Manual
C53000-G1140-C121-1
6.18.2.2 Programming Settings for Tripping Logic
Trip Signal Dura-
tion
The setting of the minimum trip signal duration at address  7PLQ75,3&0' was
already discussed in Subsection 6.1.1. This time is valid for all protective functions that
can initiate trip signals, as well as for trip signals that are initiated using the device
function controller.
6.18.3 Fault Display on the LEDs/LCD
6.18.3.1 Description of “No Trip – No Flag” Option
The indication of messages masked to local LEDs, and the maintenance of spontane-
ous messages, can be made dependent on whether the device has issued a trip sig-
nal. In this situation, messages are not reported, if one or more protective functions
have picked up on a fault, but a trip signal has not been issued yet by the device be-
cause the fault was cleared by another device (for instance, in another line). These
messages are then limited to faults in the line to be protected.
Figure shows the logic diagram for this function.
Figure 6-70 Logic Diagram for the Trip Dependent Messages
6.18.3.2 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/('/&'.
Addr. Setting Setting Options Default Setting Comment
210 TMin TRIP CMD 0.01 ~ 32.00 s 0.15 s Minimum Trip Command Duration
&
 )OW'LVS/('/&'
Relay TRIP
“1“
Trip Signal drop out
Reset LED und LCD-Messages
F# 0511
7DUJHWVRQHYHU\38
7DUJHWVRQ7ULSRQO\
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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Siemens SIPROTEC 7SJ62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SJ62
Category	Relays
Language	English