9- C/K Control; 10- Manual Operation - ITALFARAD IFC6 Instrucciones De Uso

If the cosφ being measured is less than the preset set-point, after a programmed timed
delay the regulator will connect the next capacitor bank (if available). If the cosφ being
measured exceeds the upper threshold (see later on), the regulator will disconnect the next
capacitor bank (if available). If the cosφ being measured remains within the lower set-point
and upper threshold, the regulator makes no alteration to the capacitor bank configuration.
The upper cosφ threshold is fixed at 5 points above the programmed lower set-point,
according to the following table:
Lower Cosφ set-point
The connect/disconnect
enabled/disabled starting from the bottom according to the following scheme:
Enabling sequence
1 2
X
X X
X X
X X
X X
X X
9. C/K control
Automatic reactive power correction is performed only when the measured line current
exceeds the equivalent C/K value calculated by the regulator (reactive current corresponding
to the first capacitor bank): in such case the led C/K LED is lit up. When the line current is
less than the corresponding C/K value, the regulator (in order to avoid hunting) does not alter
the capacitor bank configuration: in such case the led C/K LED starts flashing.
If the line current is very low (below 5% of the equivalent C/K current), the regulator
disconnects all capacitor banks: in such case the led C/K LED is off.
10. Manual operation
It is possible to control the capacitor banks in manual mode: by pressing the + and - buttons together.
The regulator shows the capacitor bank to be controlled manually starting off from the
ITALFARAD S.p .A. via IV novembre n.1 Minerbio (BO) It aly
0.88 ind.
0.90 ind.
0.96 ind.
0.98 ind.
0.99 ind.
1.00
0.98 cap.
strategy
...
3 11
X
X
X X
X X
Corresponding upper Cosφ threshold
always involves
12 1
X
X
21
0.93 ind.
0.95 ind.
0.99 cap.
0.97 cap.
0.96 cap.
0.95 cap.
0.93 cap.
the first capacitor
Disabling sequence
...
2 3
X X
X X
X
bank
11 12
X X
X X
X X
X X
X X
X
GB