Operating Modes - LOVATO ELECTRIC DCRL8 Manuel D'instructions

OPERATING MODES

There are three possible operating modes, listed below:
TEST Mode
– When the unit is brand new and has never been programmed, it automatically enters in TEST mode that allows the installer to manually activate the individual relay outputs, so you can verify the correct wiring of
the panel
– The TEST mode is indicated by three dashes --- shown on the main display
– The activation and deactivation of the outputs is done directly by pushing L and M buttons, but without considering the reconnection time
– The TEST mode is automatically left after the parameter programming is done (see Parameter setting chapter).
MAN and AUT Modes
– The icons AUT and MAN indicate the operating mode automatic or manual
– For manual mode, press the MAN button for 1 sec in a row
– For automatic mode, press the AUT button for 1 sec in a row
– The operating mode remains stored even after removing and reapplying the power supply voltage.
MAN Mode
– When the unit is in manual mode, you can select one of the steps and manually connected or disconnect it
– In addition to the specific icon, the alphanumeric display shows MAN in order to highlight the manual mode condition. Press MODE to view the other measurements as usual
– While the display shows MAN, it is possible to select the step to be switched on or off. To select a step, use the L or M buttons. The selected step will flash quickly
– Press MODE to activate or deactivate the selected step
– If the selected step has not yet exhausted the reconnection time, the MAN icon will flash to indicate that the transaction has been accepted and will be conducted as soon as possible
– Manual configuration of the steps is maintained even when the power supply voltage is removed. When the power returns, the original state of the steps is restored.
AUT Mode
– In automatic mode, the controller calculates the optimum configuration of capacitor steps in order to reach the set cos
– The selection criteria takes into account many variables such as: the power of each step, the number of operations, the total time of use, the reconnection time, etc
– The controller displays the imminent connection or disconnection of the steps with the flashing of their identification number (left). The flashing can last in cases in which the insertion of a step is not possible due
to the reconnection time (discharge time of the capacitor)
– The device initiates automatic corrections when there is an average reactive power request (delta-kvar) higher than 50% of the smallest step, and the measured cosphi is different from the setpoint.
Select step Change step status
G
B
3