ITALFARAD PFC144evo Manual De Uso página 88

P.21 – If set to OFF, password management is disabled and anyone has access to the settings and commands menu.
P.22 – With P.21 enabled, this is the value to specify for activating user level access. See Password access chapter.
P.23 – As for P.22, with reference to Advanced level access. (*) Available value only if the controller is not installed on
the ITALFARAD cabinet
P.24 – Number of phases of the power correction panel.
P.25 - Enables the measurement of the actual power of the step, performed each time they are switched in. The measure is
calculated, as the current measurement is referred to the whole load of the plant. The measured power of the steps is
adjusted (trimmed) after each switching and is displayed on the step life statistic page. When this function is enabled, a
15 sec pause is inserted between the switching of one step and the following, necessary to measure the reactive power
variation.
E
P.26 – P.27 - Tolerance around the setpoint. When the cosø is within the range delimited by these parameters, in AUT
N
mode the device does not connect / disconnect steps even if the delta-kvar is greater than the smallest
step.
P.28 - Selecting mode of steps insertion.
Standard mode - Normal operation with free selection of the steps
Linear mode - the steps are connected in progression from left towards right only following the step number
and according to the LIFO (Last In First Out) logic. The controller will not connect a step when the system steps
are of different ratings and by connecting the next step, the set-point value would be exceeded.
P.29 - Setpoint used when the system is generating active power to the supplier (with negative active power / power
factor ).
P.30 - Disconnection sensitivity. Same as the previous parameter but related to disconnection. If set to OFF the
disconnection has the same reaction time of connection set with the previous parameter.
P.31 - If set to ON, when switching from AUT mode to MAN mode, steps are disconnected in sequence.
P.32 – Trip threshold for the capacitors overload protection (alarm A08), that will arise after a integral delay time,
inversely proportional to the value of the overload.
Note: You can use this protection only if the capacitors are not equipped with filtering devices such as
inductors or similar.
P.33 - Threshold beyond which the integral delay for tripping of the overload alarm is zeroed, causing the immediate
intervention of the A08 alarm.
P.34 – P.35 – Data of VTs eventually used in the wiring diagrams.
P.36 – Unit of measure for temperature.
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