8.4.3
Function block
IEC08000004-2-en.vsd
EF4PTOC
I3P*
U3P*
I3PPOL*
I3PDIR*
BLOCK
BLKST1
BLKST2
BLKST3
BLKST4
TRIP
TR1
TR2
TR3
TR4
START
ST1
ST2
ST3
ST4
STFW
STRV
2NDHARMD
IEC08000004 V2 EN
Figure 69:
EF4PTOC function block
8.4.4
Signals
Table 85:
EF4PTOC Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Three phase group signal for current inputs
U3P
GROUP
SIGNAL
-
Three phase group signal for polarizing voltage
inputs
I3PPOL
GROUP
SIGNAL
-
Three phase group signal for polarizing current
inputs
I3PDIR
GROUP
SIGNAL
-
Three phase group signal for operating directional
inputs
BLOCK
BOOLEAN
0
Block of function
BLKST1
BOOLEAN
0
Block of step 1 (start and trip)
BLKST2
BOOLEAN
0
Block of step 2 (start and trip)
BLKST3
BOOLEAN
0
Block of step 3 (start and trip)
BLKST4
BOOLEAN
0
Block of step 4 (start and trip)
Table 86:
EF4PTOC Output signals
Name
Type
Description
TRIP
BOOLEAN
General trip signal
TR1
BOOLEAN
Trip signal from step 1
TR2
BOOLEAN
Trip signal from step 2
TR3
BOOLEAN
Trip signal from step 3
TR4
BOOLEAN
Trip signal from step 4
START
BOOLEAN
General start signal
ST1
BOOLEAN
Start signal step 1
Table continues on next page
Section 8
1MRK 504 135-UEN A
Current protection
156
Technical manual
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