Current Differential Relay
GARD 8000 SYS RFL Electronics
June 20, 2014 13-80 973.334.3100
Address Fail Comms1
A logical “1” indicates the local and remote address settings are not consistent.
Comms1 Fail
A logical “1” indicates the communications channel has failed.
Comms1 Alarm
A logical “1” indicates the communications channel has an active alarm condition.
Comms1 Primary GB4T
A logical “1” indicates the primary guard before trip requirements have been satisfied.
Comms1 Backup GB4T
A logical “1” indicates the backup guard before trip requirements have been satisfied.
LB Input 89B
A logical “1” indicates the logic bus input to the relay representing the 89B signal is active.
LB Input Trip Enable
A logical “1” indicates the logic bus input to the relay representing the trip enable signal is active.
LB Input Tx Transferred Status #0 through #7
A logical “1” indicates the corresponding logic bus input to the relay is active.
LB Output Phase, A, B, C, and Ground Trips
A logical “1” indicates the relay has tripped the corresponding phase and is sending the trip out to the
logic bus.
LB Output Comms 1 Fail
A logical “1” indicates the relay has detected a communications failure and is sending this information
out to the logic bus.
LB Output Relay Out of Service
A logical “1” indicates the relay is out of service and is sending this information out to the logic bus.
LB Output Current Differential Alarm
A logical “1” indicates the relay has calculated a current differential alarm condition and is sending
this information out to the logic bus.
LB Output LOL/OC Alarm
A logical “1” indicates the relay has calculated either a loss of load (backup mode) or open conductor
(primary mode) condition and is sending this information out to the logic bus.
LB Output Single-Pole
A logical “1” indicates the relay has been configured for single-pole mode and is sending this
information out to the logic bus (only meaningful in a single-pole relay).
LB Output Major Alarm
A logical “1” indicates the relay is in a major alarm condition and is sending this information out to the
logic bus.
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