CHAPTER 5: SETTINGS PRODUCT SETUPD60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 5-11955.3.11.4 Calculation method 3: Rolling demandThis method calculates a linear average of the quantity (RMS current, real power, reactive power, or apparent power) overthe programmed demand time interval, in the same way as Block Interval. The value is updated every minute andindicates the demand over the time interval just preceding the time of update.5.3.12 User-programmable LEDs5.3.12.1 Menu - Enhanced and standard front panelsSETTINGS PRODUCT SETUP USER-PROGRAMMABLE LEDS5.3.12.2 Menu - Graphical front panelSETTINGS PRODUCT SETUP USER-PROGRAMMABLE LEDSThe LEDs can be customized to illuminate when a selected FlexLogic operand is in the logic 1 state. The trip and alarmLEDs can also be customized in a similar manner. To ensure correct functionality of all LEDs, an LED test feature is alsoprovided.5.3.12.3 LED testSETTINGS PRODUCT SETUP USER-PROGRAMMABLE LEDS LED TESTIf no trigger is assigned in the DEMAND TRIGGER setting and the CRNT DEMAND METHOD is "Block Interval," usecalculation method 2. If a trigger is assigned, the maximum allowed time between two trigger signals is 60 minutes.If no trigger signal appears within 60 minutes, demand calculations are performed and available, and the algorithmresets and starts the new cycle of calculations. The minimum required time for trigger contact closure is 20 μs. USER-PROGRAMMABLE LEDS LED TESTSee below TRIP & ALARM LEDSSee page 5-122 USER-PROGRAMMABLE LED 1See page 5-122 USER-PROGRAMMABLE LED 48 USER-PROGRAMMABLE LEDS LED TESTSee below TRIP & ALARM LEDSSee page 5-122 EVENT CAUSE LED 1See page 5-123 EVENT CAUSE LED 9 LED TEST LED TEST FUNCTION:DisabledRange: Disabled, Enabled LED TEST CONTROL:OffRange: FlexLogic operand
