Figure 406: Functional module diagram
Peak integrated current calculator
The peak integrated current calculator calculates peak value of integrated current
(I_PEAK_INT_A, I_PEAK_INT_B and I_PEAK_INT_C) which is proportional to the
voltage over capacitor. The I_PEAK_INT_A, I_PEAK_INT_B and I_PEAK_INT_C
values are available in monitored data view. The frequency response of the peak
integrated current calculator can be seen in
Figure 407
.
Figure 407: Frequency response of the peak integrated current calculator
Operate level detector
The Operate level detector compares I_PEAK_INT_x value to
Start value overload
.
If the phase or phases in which I_PEAK_INT_x exceeds the setting matches the
Num of start phases
setting, the Operate level detector module activates the Timer
1 module.
Protection functions
1MRS757644 H
774 620 series
Technical Manual