Function Block - ABB REG650 Technical Manual

Section 8
Current protection
8.2.3
8.2.4
178
Other setting combinations are possible, but not recommended.
Second harmonic blocking restraint level can be set for the function and can be used to
block each step individually.

Function block

EF4PTOC (51N_67N)
I3P* TRIP
V3P* TRST1
I3PPOL* TRST2
I3PDIR* TRST3
BLOCK TRST4
BLK1 BFI_3P
BLK2 PU_ST1
BLK3 PU_ST2
BLK4 PU_ST3
PU_ST4
PUFW
PUREV
2NDHARMD
ANSI08000004-2-en.vsd
ANSI08000004 V2 EN
Figure 83: EF4PTOC (51N/67N) function block
Signals
Table 73: EF4PTOC (51N_67N) Input signals
Name Type
I3P GROUP
SIGNAL
V3P GROUP
SIGNAL
I3PPOL GROUP
SIGNAL
I3PDIR GROUP
SIGNAL
BLOCK BOOLEAN
BLK1 BOOLEAN
BLK2 BOOLEAN
BLK3 BOOLEAN
BLK4 BOOLEAN
Default Description
- Three phase group signal for current inputs
- Three phase group signal for polarizing voltage inputs
- Three phase group signal for polarizing current inputs
- Three phase group signal for operating directional
inputs
0 Block of function
0 Block of step 1 (start and trip)
0 Block of step 2 (start and trip)
0 Block of step 3 (start and trip)
0 Block of step 4 (start and trip)
1MRK 502 043-UUS B
Technical Manual