Function Block; Signals - ABB REC650 ANSI Technical Manual

Section 6
Current protection
6.2.3
6.2.4
86
Second harmonic blocking level can be set for the function and can be used to block each
step individually

Function block

OC4PTOC (51_67)
I3P* TRIP
V3P* TRST1
BLOCK TRST2
BLK1 TRST3
BLK2 TRST4
BLK3 PICKUP
BLK4 PU_ST1
PU_ST2
PU_ST3
PU_ST4
PU_A
PU_B
PU_C
2NDHARM
ANSI08000002-2-en.vsd
ANSI08000002 V2 EN
Figure 30: OC4PTOC (51/67) function block

Signals

Table 30: OC4PTOC (51_67) Input signals
Name Type
I3P GROUP
SIGNAL
U3P GROUP
SIGNAL
BLOCK BOOLEAN
BLKST1 BOOLEAN
BLKST2 BOOLEAN
BLKST3 BOOLEAN
BLKST4 BOOLEAN
Table 31: OC4PTOC (51_67) Output signals
Name Type
TRIP BOOLEAN
TR1 BOOLEAN
TR2 BOOLEAN
TR3 BOOLEAN
Table continues on next page
Default Description
- Three phase group signal for current inputs
- Three phase group signal for voltage inputs
0 Block of function
0 Block of step 1
0 Block of step 2
0 Block of step 3
0 Block of step 4
Description
Common trip signal
Trip signal from step 1
Trip signal from step 2
Trip signal from step 3
1MRK 511 287-UUS A
Technical manual