GE C70 Instruction Manual page 365

Capacitor bank protection and control system
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CHAPTER 5: SETTINGS
There are eight identical digital counters, numbered from 1 to 8. A digital counter counts the number of state transitions
from Logic 0 to Logic 1. The counter is used to count operations such as the pickups of an element, the changes of state of
an external contact (for example, breaker auxiliary switch), or pulses from a watt-hour meter.
— Assigns a label to identify the unit of measure pertaining to the digital transitions to be counted. The
COUNTER 1 UNITS
units label appears in the corresponding actual values status.
— Sets the count to a required preset value before counting operations begin, as in the case where a
COUNTER 1 PRESET
substitute relay is to be installed in place of an in-service relay, or while the counter is running.
— Sets the value to which the accumulated count value is compared. Three FlexLogic output
COUNTER 1 COMPARE
operands are provided to indicate if the present value is 'more than (HI)', 'equal to (EQL)', or 'less than (LO)' the set value.
— Selects the FlexLogic operand for incrementing the counter. If an enabled UP input is received when the
COUNTER 1 UP
accumulated value is at the limit of +2,147,483,647 counts, the counter rolls over to –2,147,483,648.
— Selects the FlexLogic operand for decrementing the counter. If an enabled DOWN input is received
COUNTER 1 DOWN
when the accumulated value is at the limit of –2,147,483,648 counts, the counter rolls over to +2,147,483,647.
— Selects the FlexLogic operand for blocking the counting operation. All counter operands are blocked.
COUNTER 1 BLOCK
— Selects the FlexLogic operand used to set the count to the preset value. The counter sets to the
CNT1 SET TO PRESET
preset value in the following situations:
When the counter is enabled and the
operand is 0, the counter sets to 0)
CNT1 SET TO PRESET
When the counter is running and the
changing from 1 to 0 while the counter is running has no effect on the count)
When a reset or reset/freeze command is sent to the counter and the
(when a reset or reset/freeze command is sent to the counter and the
counter sets to 0)
— Selects the FlexLogic operand for setting the count to either "0" or the preset value depending on the
COUNTER 1 RESET
state of the
CNT1 SET TO PRESET
— Selects the FlexLogic operand for capturing (freezing) the accumulated count value into a
COUNTER 1 FREEZE/RESET
separate register with the date and time of the operation, and resetting the count to "0."
— Selects the FlexLogic operand for capturing (freezing) the accumulated count value into a
COUNTER 1 FREEZE/COUNT
separate register with the date and time of the operation, and continuing counting. The present accumulated value and
captured frozen value with the associated date/time stamp are available as actual values. If control power is interrupted,
the accumulated and frozen values are saved into non-volatile memory during the power-down operation.
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
COUNTER 1 COMPARE:
0
COUNTER 1 UP:
Off
COUNTER 1 DOWN:
Off
COUNTER 1 BLOCK:
Off
CNT1 SET TO PRESET:
Off
COUNTER 1 RESET:
Off
COUNT1 FREEZE/RESET:
Off
COUNT1 FREEZE/COUNT:
Off
CNT1 SET TO PRESET
CNT1 SET TO PRESET
operand.
Range: –2,147,483,648 to +2,147,483,647
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
operand has the value 1 (when the counter is enabled and
operand changes the state from 0 to 1 (
CNT1 SET TO PRESET
CNT1 SET TO PRESET
CONTROL ELEMENTS
CNT1 SET TO PRESET
operand has the value 1
operand has the value 0, the
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