9–14 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
FLEXLOGIC CHAPTER 9: FLEXLOGIC AND OTHER SETPOINTS
FLEXLOGIC EVALUATION
Each equation is evaluated in the order in which the parameters have been entered.
FlexLogic provides latches which by definition have a memory action, remaining in the set
state after the set input has been asserted. However, they are volatile; that is, they reset on
the re-application of control power.
When making changes to settings, all FlexLogic equations are re-compiled whenever any
new setting value is entered, so all latches are automatically reset. If it is necessary to re-
initialize FlexLogic during testing, for example, it is suggested to power the unit down then
back up.
Timers
Path: Setpoints > FlexLogic > Timers
There are 32 identical FlexLogic timers available. These timers can be used as operators for
FlexLogic equations.
TIMER 1 TYPE
Range: Milliseconds, Seconds, Minutes
Default: Milliseconds
The setpoint is used to select the time measuring unit.
TIMER 1 PICKUP DELAY
Range: 0 to 60000 s in steps of 1 s
Default: 0 s
The setpoint sets the time delay to Pickup. If a Pickup delay is not required, set this
function to "0”.
TIMER 1 DROPOUT DELAY
Range: 0 to 60000 s in steps of 1 s
Default: 0 s
The setpoint sets the time delay to Dropout. If a Dropout delay is not required, set this
function to "0”.
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