GE B90 Instruction Manual page 334

Low impedance bus differential system
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FLEXLOGIC
Operand type
CONTROL
PUSHBUTTONS
Enhanced and
standard front panels
CYBERSENTRY
DIRECT DEVICES
DIRECT INPUT/
OUTPUT CHANNEL
MONITORING
5
ELEMENT:
Breaker failure
ELEMENT:
Bus differential
ELEMENT:
CT trouble
ELEMENT:
Digital elements
ELEMENT:
End fault protection
5-142
Operand syntax
CONTROL PUSHBTN 1 ON
CONTROL PUSHBTN 2 ON
CONTROL PUSHBTN 3 ON
CONTROL PUSHBTN 4 ON
CONTROL PUSHBTN 5 ON
CONTROL PUSHBTN 6 ON
CONTROL PUSHBTN 7 ON
ROLE ADMIN ACT
ROLE SUPERVISOR ACT
ROLE ENGINEER ACT
ROLE OPERATOR ACT
ROLE OBSERVER ACT
AUTHENTICATION FAIL
UNAUTH FW ATTEMPT
UNAUTH SETTING WRITE
DIRECT DEVICE 1On
DIRECT DEVICE 16On
DIRECT DEVICE 1Off
DIRECT DEVICE 16Off
DIR IO CH1 CRC ALARM
DIR IO CH2 CRC ALARM
DIR IO CH1 UNRET ALM
DIR IO CH2 UNRET ALM
BKRFAIL 1 RETRIP
BKRFAIL 1 T1 OP
BKRFAIL 1 T2 OP
BKRFAIL 1 T3 OP
BKRFAIL 1 TRIP OP
BKRSUPV 1 SUPV OP
BKRSUPV 1 HISET OP
BKRSUPV 1 LOSET OP
BKRFAIL 2 to 24
BKRSUPV 2 to 24
BUS 1 BIASED PKP
BUS 1 BIASED DPO
BUS 1 BIASED OP
BUS 1 UNBIASED OP
BUS 1 OP
BUS 1 DIR
BUS 1 SAT
BUS 2 to 6
CT TROUBLE 1 OP
CT TROUBLE 2 OP
CT TROUBLE 3 OP
CT TROUBLE 4 OP
CT TROUBLE 5 OP
CT TROUBLE 6 OP
Dig Element 1 PKP
Dig Element 1 OP
Dig Element 1 DPO
Dig Element 2 to 48
EFP 1 PKP
EFP 1 DPO
EFP 1 OP
EPF 2 to 24
Operand description
Control pushbutton 1 is being pressed
Control pushbutton 2 is being pressed
Control pushbutton 3 is being pressed
Control pushbutton 4 is being pressed
Control pushbutton 5 is being pressed
Control pushbutton 6 is being pressed
Control pushbutton 7 is being pressed
Administrator role is active and is set to true when that is the case
Supervisor role is active and is set to true when that is the case
Engineer role is active and is set to true when that is the case
Operator role is active and is set to true when that is the case
Observer role is active and is set to true when that is the case
Operand set for Failed Authentication self-test and alarm
Operand set for firmware lock self-test and alarm
Operand set for settings lock self-test and alarm
Flag is set, logic=1
Flag is set, logic=1
Flag is set, logic=1
Flag is set, logic=1
The rate of direct input messages received on channel 1 and failing the CRC
exceeded the user-specified level
The rate of direct input messages received on channel 2 and failing the CRC
exceeded the user-specified level
The rate of returned direct input/output messages on channel 1 exceeded
the user-specified level (ring configurations only)
The rate of returned direct input/output messages on channel 2 exceeded
the user-specified level (ring configurations only)
Re-trip issued by the breaker failure 1 protection
Timer 1 of the breaker failure 1 protection expired
Timer 2 of the breaker failure 1 protection expired
Timer 3 of the breaker failure 1 protection expired
Breaker failure 1 has operated
Overcurrent supervision of the breaker failure 1 operated
High-set overcurrent supervision of the breaker failure 1 operated
Low-set overcurrent supervision of the breaker failure 1 operated
Same set of operands as shown for BKRFAIL1
Same set of operands as shown for BKRSUPV 1
The biased bus differential element for zone 1 has picked up
The biased bus differential element for zone 1 has dropped out
The biased bus differential element for zone 1 has operated
The unbiased bus differential element for zone 1 has operated
The bus differential element for zone 1 has operated
The directional unit for the zone 1 bus differential element has issued
permission to operate
The saturation detector for the zone 1 bus differential element has detected
external fault conditions
Same set of operands as shown for BUS 1
CT trouble has been detected for bus differential zone 1
CT trouble has been detected for bus differential zone 2
CT trouble has been detected for bus differential zone 3
CT trouble has been detected for bus differential zone 4
CT trouble has been detected for bus differential zone 5
CT trouble has been detected for bus differential zone 6
Digital Element 1 is picked up
Digital Element 1 is operated
Digital Element 1 is dropped out
Same set of operands as shown for Dig Element 1
The first end fault protection element has picked up
The first end fault protection element has dropped out
The first end fault protection element has operated
Same set of operands as shown for EFP 1
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS

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