6- Selection Of The Network Frequency; 7- To Select Type Of Enabling; 8- How The Regulator Operates - ITALFARAD IFC6 Instrucciones De Uso

delay between two consecutive enabling operations of capacitor banks (when cosφ is
less than the lower set-point) (from 5 to 60 sec.): default 10 sec.
delay between two consecutive disabling operations of capacitor banks (when cosjφ
exceeds the upper threshold) (from 5 to 60 sec.): default 5 sec.
Through the MODE, + and - buttons it is possible to select each parameter and change
its value. The parameter which is being changed is indicated by the lighting up of the
corresponding LED (flashing for the second level parameters). See legend at top left on
the panel for indication of the parameter under adjustment.
After 10 seconds from pressing the last button, the regulator quits the setup mode
automatically; the setup LED goes out and the instrument returns to normal mode
(automatic cosφ correction).
6. Selection of the network frequency
When switching on, the instrument shows the network frequency programmed:
It is possible to select the network frequency between 50 and 60 Hz. To program the
network frequency, hold down the RESET and – buttons when switching on the
regulator selects alternatively 50 or 60Hz. The preset value will be held permanently
until changed again.
It is absulutely essential to preset the same type of network frequency as the one effective of
the network in which the regulator is installed, otherwise operation would not be correct.
7. To select type of enabling
When switching on, the instrument shows the type of enabling selected:
3 PH: three phase enabling in quadrature (default)
1 PH: direct enabling (single phase)
When enabling in quadrature, the voltage is acquired by 2 phases while the current is
acquired by the other phase. The type of enabling can be selected; to do so, hold down
the RESET and + buttons when switching on: the regulator selects enabling in
quadrature or direct.
The preset value will be held permanently until changed again.
It is absolutely essential to preset the same type of enabling as the one effectively used
otherwise operation would not be correct.
8. How the regulator operates
The regulator calculates the RMS value of the voltage and current, then derives the
relative phase shift between their fundamental components. Such measurement is
obtained from the active and reactive power values averaged over 5 seconds in order to
ensure accuracy and stability even with distorted waveforms.
With the MODE button it is possible to show the instantaneous values of cosj, voltage
and line current on the display. The corresponding LED alongside the display indicates
the measurement displayed. When RESET and + are pressed together, all
measurements appear cyclically on the display at intervals of 3 sec. The cyclic scanning
can be interrupted by pressing any of the buttons.
ITALFARAD S.p .A. via IV novembre n.1 Minerbio (BO) It aly
F 50 (50Hz –default-)
F 60 (60Hz)
20
GB