ABB RED650, Technical Manual, Page: 408 / 926

13.1.4 Signals
PID-3766-INPUTSIGNALS v7
Table 224: ZCPSCH Input signals
Name Type Default Description
I3P GROUP
SIGNAL
- Current group connection
U3P GROUP
SIGNAL
- Voltage group connection
BLOCK BOOLEAN 0 Block of function
BLKTR BOOLEAN 0 Signal for block of trip output from communication
logic
BLKCS BOOLEAN 0 Block of carrier send in permissive OR and
blocking schemes
CSBLK BOOLEAN 0 Reverse directed distance protection zone signal
CACC BOOLEAN 0 Permissive distance protection zone signal
CSOR BOOLEAN 0 Overreaching distance protection zone signal
CSUR BOOLEAN 0 Underreaching distance protection zone signal
CR BOOLEAN 0 Carrier Signal Received
CRG BOOLEAN 0 Carrier guard signal received
CBOPEN BOOLEAN 0 Indicates that the breaker is open
PID-3766-OUTPUTSIGNALS v5
Table 225: ZCPSCH Output signals
Name Type Description
TRIP BOOLEAN Trip output
CS BOOLEAN Carrier Send signal
CHSTOP BOOLEAN Stops the blocking signal to remote end
CRL BOOLEAN Carrier signal received or missing carrier guard
signal
LCG BOOLEAN Loss of carrier guard signal
Section 13
1MRK 505 394-UEN A
Scheme communication
402 Line differential protection RED650 2.2 IEC
Technical manual