ABB Relion 670 Series Technical Reference Manual page 800

Section 13
Scheme communication
13.1.3
13.1.4
794
Function block
ZCPSCH (85)
BLOCK TRIP
BLKTR CS
BLKCS CRL
CS_STOP LCG
PLTR_CRD
CSOR
CSUR
CR
CR_GUARD
ANSI06000286-2-en.vsd
ANSI06000286 V2 EN
Figure 390: ZCPSCH (85) function block
Input and output signals
Table 419: ZCPSCH (85) Input signals
Name Type
BLOCK BOOLEAN
BLKTR BOOLEAN
BLKCS BOOLEAN
CSBLK BOOLEAN
CACC BOOLEAN
CSOR BOOLEAN
CSUR BOOLEAN
CR BOOLEAN
CRG BOOLEAN
Table 420: ZCPSCH (85) Output signals
Name Type
TRIP BOOLEAN
CS BOOLEAN
CRL BOOLEAN
LCG BOOLEAN
Default Description
0 Block of function
0 Block pilot (communication assisted) trip
0 Block pilot channel start
0 Block of channel start (CS) due to reverse fault detection
0 Signal to be used for coordinating local pilot tripping
with the channel receive (CR) signal
0 Signal to be used for channel start with overreaching
pilot schemes
0 Signal to be used for channel start with underreaching
pilot schemes
0 Channel receive input signal from communications
apparatus/module for pilot communication scheme logic
0 Carrier channel guard input signal
Description
Trip by pilot communication scheme logic
Pilot channel start signal
Channel receive signal output from communication
scheme logic
Loss of channel guard signal output from
communication scheme logic
1MRK505222-UUS C
Technical reference manual