ABB REG650 - Function Block; Signals

One undervoltage step with definite time characteristic is also available within the
function in order to provide functionality for overcurrent protection with undervoltage
seal-in.
8.10.3 Function block
VRPVOC
I3P*
U3P*
BLOCK
BLKOC
BLKUV
TRIP
TROC
TRUV
START
STOC
STUV
IMAX
UUMIN
IEC10000118-2-en.vsd
IEC10000118 V2 EN
Figure 125: VRPVOC function block
8.10.4 Signals
Table 147: VRPVOC 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 both stages
BLKOC BOOLEAN 0 Block of voltage restraint overcurrent stage (ANSI
51V)
BLKUV BOOLEAN 0 Block of under voltage function
Table 148: VRPVOC Output signals
Name
Type Description
TRIP BOOLEAN General trip signal
TROC BOOLEAN Trip signal from voltage restraint overcurrent stage
TRUV BOOLEAN Trip signal from undervoltage function
START BOOLEAN General start signal
STOC BOOLEAN Start signal from voltage restraint overcurrent
stage
STUV BOOLEAN Start signal from undervoltage function
IMAX REAL Maximum phase current magnitude
UUMIN REAL Minimum ph-to-ph voltage magnitude
Section 8 1MRK 502 048-UEN A
Current protection
250
Technical manual