Appendix
A.4 Default Settings
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
569
Spontaneous Fault Message Display
The spontaneous display messages appear automatically in the display, after a general pick-up of the 7UM62.
The most important data about a fault can be viewed on the device front in the sequence shown in Figure A-32.
Figure A-32 Display of spontaneous messages in the device display
Spontaneous Fault Indication of the Graphic Display
All devices featuring a graphic display allow you to select whether or not to view automatically the most impor-
tant fault data on the display after a general interrogation.
A.4.6 Pre-defined CFC Charts
Some CFC charts are already supplied with the SIPROTEC 4 device:
Device and System Logic
The single-point indication „DataStop“” that can be injected by binary inputs is converted by means of a
NEGATOR block into an indication „UnlockDT“” that can be processed internally (internal single point indica-
tion, IntSP), and assigned to an output. This would not be possible directly, i.e. without the additional block.
Figure A-33 Link between Input and Output for Transmission Block
Limit value handling MW
Using modules on the running sequence ”measured value processing", an undercurrent monitor for the three
phase currents is implemented. The output indication is issued as soon as one of the three phase currents un-
dershoots the set threshold:
Figure A-34 Undercurrent monitoring
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