GE 850 - Page 457

CHAPTER 7: MONITORING FUNCTIONS
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 7–37
Figure 7-21: Digital Counter logic diagram
SETPOINT
DGTL CNTR 1 FUNCTION: Disabled Enabled
FlexLogic Operand
COUNTER 1 EQL
CALCULATE
ACCUMULATED VALUE
SETPOINTS
Do Not Operate, Operate
SETPOINTS
DGTL CNTR 1 PRE-SET:
SETPOINT
DGTL CNTR 1 BLOCK: OFF=0
AND
SETPOINT
DGTL CNTR 1 UP: OFF=0
SETPOINT
DGTL CNTR 1 DOWN: OFF=0
SETPOINT
DGTL CNTR 1 SET TO PRE-SET: OFF=0
SETPOINT
DGTL CNTR 1 RESET: OFF=0
SETPOINT
DGTL CNTR 1 FREEZE/RESET: OFF=0
SETPOINT
DGTL CNTR 1 FREEZE/COUNT: OFF=0
OROR
AND AND
SET TO PRE-SET VALUE
SET TO 0
RUN
STORE DATE AND TIME
SETPOINT
DGTL CNTR 1 COMPARE:
COUNT = COMPARE COUNT < COMPARE
DGTL CNTR 1 NAME: DGTL CNTR 1 UNITS:
COUNT > COMPARE
FlexLogic Operand
COUNTER 1 LOW
SETPOINTS
Do Not Operate, Operate
FlexLogic Operand
COUNTER 1 HI
SETPOINTS
Do Not Operate, Operate CNTR 1 HI OUTPUT RELAY 3 (X) CNTR 1 EQL OUTPUT RELAY 3 (X) CNTR 1 LOW OUTPUT RELAY 3 (X)
RECORDS
COUNTER 1 FROZEN COUNTER 1 FROZEN
DATE AND TIME
COUNTER 1
ACCUMULATION
FlexLogic Operand
COUNTER 1 LIMIT
COUNTER REACHED
LIMITS
892751A1.cdr