8 MB - POWERLAB

Functionsand characteristicsMicrologic control units 0Micrologic P "power"DB101523Display of an event log on a supervisor.With the communication optionAdditional measurements, maximeters and minimetersCertain measured or calculated values are only accessible with the COMcommunication option:b I peak / 2, (I1 + I2 + I3)/3, I unbalanceb load level in % Irb total power factor.The maximeters and minimeters are available only via the COM option for use witha supervisor.Event logAll events are time stamped.b tripsb beginning and end of alarmsb modifications to settings and parametersb counter resetsb system faults:b fallback positionb thermal self-protectionb loss of timeb overrun of wear indicatorsb test-kit connectionsb etc.Maintenance registerUsed as an aid in troubleshooting and to better plan for device maintenanceoperations.b highest current measuredb operation counterb number of test-kit connectionsb number of trips in operating mode and in test modeb contact-wear indicator.Additional technical characteristicsSetting the display languageSystem messages may be displayed in six different languages. The desiredlanguage is selected via the keypad.Protection functionsAll current-based protection functions require no auxiliary source. Voltage-basedprotection functions are connected to AC power via a voltage measurement inputbuilt into the circuit breaker.Measurement functionsMeasurement functions are independent of the protection functions.The high-accuracy measurement module operates independently of the protectionmodule, while remaining synchronised with protection events.Measurement-calculation modeb measurement functions implement the new "zero blind time" concept whichconsists in continuously measuring signals at a high sampling rate. The traditional"blind window" used to process samples no longer exists. This method ensuresaccurate energy calculations even for highly variable loads (welding machines,robots, etc.)b energies are calculated on the basis of the instantaneous power values, in twomanners:v the traditional mode where only positive (consumed) energies are consideredv the signed mode where the positive (consumed) and negative (supplied) energiesare considered separately.Accuracy of measurements (including sensors)b voltage (V) 0.5 %b current (A) 1.5 %b frequency (Hz) 0.1 %b power (W) and energy (Wh) 2 %.Stored informationThe fine setting adjustments, the last 100 events and the maintenance registerremain in the control-unit memory even when power is lost.Time-stampingTime-stamping is activated as soon as time is set manually or by a supervisor.No external power supply module is required (max. drift of 1 hour per year).ResetAn individual reset, via the keypad or remotely, acts on alarms, minimum andmaximum data, peak values, the counters and the indicators.29