ABB REC650 ANSI - Function Block; Signals

Second harmonic blocking level can be set for the function and can be used to block each
step individually
6.2.3 Function block
ANSI08000002-2-en.vsd
OC4PTOC (51_67)
I3P*
V3P*
BLOCK
BLK1
BLK2
BLK3
BLK4
TRIP
TRST1
TRST2
TRST3
TRST4
PICKUP
PU_ST1
PU_ST2
PU_ST3
PU_ST4
PU_A
PU_B
PU_C
2NDHARM
ANSI08000002 V2 EN
Figure 30: OC4PTOC (51/67) function block
6.2.4 Signals
Table 30: OC4PTOC (51_67) 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
BLKST1 BOOLEAN 0 Block of step 1
BLKST2 BOOLEAN 0 Block of step 2
BLKST3 BOOLEAN 0 Block of step 3
BLKST4 BOOLEAN 0 Block of step 4
Table 31: OC4PTOC (51_67) Output signals
Name
Type Description
TRIP BOOLEAN Common trip signal
TR1 BOOLEAN Trip signal from step 1
TR2 BOOLEAN Trip signal from step 2
TR3 BOOLEAN Trip signal from step 3
Table continues on next page
Section 6 1MRK 511 287-UUS A
Current protection
86
Technical manual