System Logic
GARD 8000 SYS RFL Electronics
March 26, 2008 8-17 973.334.3100
8.5 DEFAULT TPS & DISTANCE LOGIC
The default TPS & distance logic in the GARD 8000 provides 12 inputs, 1 channel of transfer trip with
8 transfer functions, a distance relay and 12 outputs. The following tables describe the signals and
configuration settings. The logic diagrams should be referenced to for additional information.
8.5.1 INPUT MAPPING
Each of the following signals can be driven by any of the discrete hardware inputs 12 inputs and True
or False. One hardware input can drive more than one signal. In the following table, N can equal any
function from 2 to 8.
Table 8-11. Input Mapping
First Input to the function N transmit AND/OR gate
Second Input to the function N transmit AND/OR gate
Input to the function stop N transmit control
Oscillography external trigger
External trig for oscillography capture in the distance
relay module
External sync check condition for the recloser
External loss-of-potential condition
External reclose initiate
External Reclose Initiate for the recloser in the distance
protection module
Breaker closed input, phase A
Breaker closed input, phase B
Breaker closed input, phase C
External manual close command
External Breaker Failure
Initiate
External Breaker Failure Initiate
Disconnector switch closed input for stub bus protection
External channel stop for DCB pilot scheme
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