Depending on the communication protocol the required function block needs to be
instantiated in the configuration.
3.3.3.1 Functional diagrams for protection
The functional diagrams describe the IEDs protection functionality in detail and
according to the factory set default connections.
Four overcurrent stages are offered for overcurrent and short-circuit protection. The
non-directional instantaneous stage PHIPTOC1 can be blocked by energizing the
binary input X120:BI1.
PHIPTOC1
BLOCK
ENA_MULT
OPERATE
START
PHLPTOC1
BLOCK
ENA_MULT
OPERATE
START
PHHPTOC1
BLOCK
ENA_MULT
OPERATE
START
PHHPTOC2
BLOCK
ENA_MULT
OPERATE
START
OR6
B1
B2
B3
B4
B5
B6
O
PHIPTOC1_OPERATE
PHIPTOC1_OPERATE
PHLPTOC1_OPERATE
PHLPTOC1_OPERATE
PHHPTOC1_OPERATE
PHHPTOC1_OPERATE
PHHPTOC2_OPERATE
PHHPTOC2_OPERATE
PHLPTOC1_START
PHHPTOC1_START
PHHPTOC2_START
PHIPTOC1_START
X120_BI1_EXT_OC_BLOCKING
PHxPTOC_OPERATE
GUID-55B40D0D-C4B2-4997-B3D0-934CCCFF1FB7 V1 EN
Figure 18: Overcurrent protection functions
The output INRPHAR1_BLK2H of three-phase inrush detector INRPHAR1 enables
either blocking the function or multiplying the active settings for any of the available
overcurrent or earth-fault function blocks.
INRPHAR1
BLOCK BLK2H
INRPHAR1_BLK2H
GUID-3C6557BC-1843-4A95-9562-799D95B9CD3A V1 EN
Figure 19: Inrush detector function
Section 3 1MRS756378 S
REF615 standard configurations
54 REF615
Application Manual
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