11.1.3 Function block
SDDRFUF
I3P*
U3P*
BLOCK
CBCLOSED
MCBOP
DISCPOS
BLKZ
BLKU
3PH
DLD1PH
DLD3PH
IEC08000220 V1 EN
Figure 156: SDDRFUF function block
11.1.4 Signals
Table 198: SDDRFUF Input signals
Name Type Default Description
I3P GROUP
SIGNAL
- Three phase group signal for current inputs
U3P GROUP
SIGNAL
- Three phase group signal for voltage inputs
BLOCK BOOLEAN 0 Block of function
CBCLOSED BOOLEAN 0 Active when circuit breaker is closed
MCBOP BOOLEAN 0 Active when external MCB opens protected voltage
circuit
DISCPOS BOOLEAN 0 Active when line disconnector is open
Table 199: SDDRFUF Output signals
Name
Type Description
BLKZ BOOLEAN Start of current and voltage controlled function
BLKU BOOLEAN General start of function
3PH BOOLEAN Three-phase start of function
DLD1PH BOOLEAN Dead line condition in at least one phase
DLD3PH BOOLEAN Dead line condition in all three phases
Section 11 1MRK 502 048-UEN A
Secondary system supervision
308
Technical manual