Pre-Defined Cfc Charts - Siemens SIPROTEC 7SJ61 Manual
Multi-functional protective relay with bay controller
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Also See for SIPROTEC 7SJ61:
- Technical data manual (58 pages) ,
- Manual (94 pages) ,
- Manual (72 pages)
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Spontaneous Fault Indication
The spontaneous annunciations serve to display the most important data about a fault. They appear automat-
ically in the display after general interrogation of the device, in the sequence shown in the following figure.
Figure A-21
A.5.6
Pre-defined CFC Charts
Some CFC Charts are already supplied with the SIPROTEC device.
Device and System Logic
The NEGATOR block assigns the input signal "DataStop" directly to an output. This is not directly possible
without the interconnection of this block.
Figure A-22
Logical Link between Input and Output
Set points MV
Using modules on the running sequence "measured value processing", a low current monitor for the three
phase currents is implemented. The output message is set high as soon as one of the three phase currents
falls below the set threshold:
Figure A-23
Undercurrent monitoring
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
Display of spontaneous messages in the HMI
Appendix
A.5 Default Settings
397
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