ABB REL 551-C1*2.5 - Logic Diagram; Input and Output Signals

70
Definite time non-directional overcurrent
protection (TOC)
Chapter 5
Current
2.4 Logic diagram
Figure 28: TOC function, logic diagram
2.5 Input and output signals
Table 79: Input signals for the TOC (TOC--) function block
Path in local HMI: ServiceReport/Functions/TimeDelayOC/FuncOutputs
Table 80: Output signals for the TOC (TOC--) function block
en01000179.vsd
TOC--BLOCK
TOC - TIME DELAYED OVERCURRENT FUNCTION
TEST-ACTIVE
&
TEST
BlockTOC= Yes
>1
STIL1
STIL2
STIL3
TOC--TRP
TOC--TRIP
&
&
TOC--BLKTR
&
t
tP
&
Function Enable
Trip Blocking
>1
TOC--STP
TOC--STL1
TOC--STL2
&
STIN
TOC--STL3
TOC--STN
t
tN
&
TOC--TRN
>1
Signal Description
BLOCK Block of the overcurrent function.
BLKTR Block of trip from the overcurrent function
Signal Description
TRIP Trip by time delayed overcurrent function.
TRP Trip by time delayed phase overcurrent function when included
TRN Trip by the time delayed residual overcurrent function when included
STP Start of phase overcurrent function when included
STL1 Start phase overcurrent, phase L1 when phase overcurrent function
included
STL2 Start phase overcurrent, phase L2 when phase overcurrent function
included
STL3 Start phase overcurrent, phase L3 when phase overcurrent function
included
STN Start of the time delayed residual overcurrent function when included