Applications; Installation; Front Panel; Measurement Selection - LOVATO ELECTRIC ATL10 Manual De Instrucciones

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APPLICATIONS

– Utility-to-utility or utility-to-generator changeover
– Control of motorised circuit breakers, motorised switches or contactors
– Three-phase, two-phase or single-phase voltage controls
– Phase-phase voltage and/or phase-neutral voltage control
– Controls of minimum voltage, maximum voltage, phase loss, asymmetry, minimum frequency, maximum frequency, with independent enable and delay
– Voltage thresholds with programmable hysteresis.

INSTALLATION

– Install the unit following the wiring diagrams on the last pages of this manual
– Use the appropriate wiring diagram for the application
– Program parameters as a function of the wiring diagram adopted and pay particular attention to the programming of inputs/outputs.

FRONT PANEL

– The unit front panel is equipped with a LED display which shows the voltages of the two supply lines (Line 1 and Line 2) with the relevant key for measure
selection (A)
– Three keys, OFF/RESET-MAN-AUT (B-C-D), enable to select the operating mode, which is displayed by the corresponding LED
– A mimic diagram is located in the centre of the front panel; it shows the presence of the power supply sources and the status of circuit breakers for load
connection
– Two keys (F and E) allow the manual control of circuit breakers.
MEASURE SELECTION
– Press the key on the right of display (A) repeatedly to display the various measures
– Line-to-line (L-L) voltages, line-to-neutral (L-N) voltages and frequency are available for each line
– The battery supply voltage is shown through the dedicated LED.
– Red LED combinations indicate which measure is selected. The list of measures varies depending on whether the unit is set up for three-phase, two-phase,
or single-phase control
– After 1 minute without touching the key the measure reverts to default measure, which may be the first L-L voltage or the first L-N voltage depending on the
setting of the voltage control
– In case of alarms or messages, the display will show a scrolling text. Pressing the selection key A will mask the alarm temporarily and allow the measures to
be accessed
– When load is switched between line 1 and line 2, the measure selected on the display follows automatically the load.
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B