Hardware/software current control
hard./software current reg.
If one of the phase currents is above the level, all IG-
BTs in the basic time are switched off. If the current is
below the level again, activation occurs in the next
basic time.
HSR/SSR Current [OcLim%], is37
The lowest current limit from the is/dr - groups
Current level for the phase currents when the modulation is switched off. When falling below
the modulation is switched on again. The percentage value refers to the OC current of the
device.
In the basic interrupt this cell is increased by one, if HSR is active
Sinus filter
6.2.23.1 Start-up instructions
If a sinus filter is connected between inverter and synchronous motor, no identifica-
tion of the motor data or the sinus filter data is possible. The capacity (Cf) would
falsify the measured values.
Thus, the motor data must be determined before the connection. The filer data are
shown in the respective data sheet. The ultimate value is the critical frequency fk
(dr64). It is calculated from the motor/filter data.
The current that flows into the capacitor is calculated depending on the output volt-
age and frequency and preset inverted in the reactive current setpoint (this setting
is not possible in v/f operation).
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