Operation Principle - ABB RELION REX640 Technical Manual

1MRS759142 C
5.11.4
REX640
Technical Manual

Operation principle

The function can be enabled and disabled with the Operation setting. The
corresponding parameter values are "on" and "off".
The operation of RESCPSCH can be described with a module diagram. All the
modules in the diagram are explained in the next sections.
CR_PRM
CR_BLOCKING
CR_INTER_TR
CRG
BLOCK
CSUR
CACC
BLK_CS_OPR
CSOR
CSBLK
GUID-8608447E-0325-4A4B-85B1-1050497DD5E7 V1 EN
Figure 623: Functional module diagram
The applied communication scheme logic in RESCPSCH is selected with the Scheme
type setting.
Table 1082: Communication scheme based on the Scheme type value
Scheme type value
"Intertrip"
"Permissive Underreach"
"Permissive Overreach"
"Blocking"
The unblocking scheme (DCUB) is enabled with the Unblock mode setting.
Protection related functions
Multiplexer
OR
DCUB
DUTT
OR
PUTT
AND
AND
POTT
OR
DCB
Communication scheme
DUTT
PUTT
POTT
DCB
Section 5
CRL
LCG
CS_INTER_TR
CS_PRM
OPERATE
CS_BLOCKING
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