6.2.15.1.4 DC link voltage compensation
The DC link voltage compensation is activated with "Uic compensation mode“ = 2
or 3. Means, as long as the voltage is supplied, the output voltage depends only on
the programmed characteristic (not from the current DC link voltage).
off, only curr decoupling
on / with voltage limitation
If the DC link voltage compensation is switched off, the output voltage changes
with the DC link voltage. The calculation of the characteristic is based on the in-
verter rated data. The deviation of the DC link voltage from the inverter rated volt-
age has directly influence to the output voltage.
Maximum output voltage (effective value)
With is00 Uic mode = "3: on, voltage limited“, the output voltage is limited at is02
voltage limit.
6.2.15.1.5 Maximum modulation grade fc04
Adjustment of max. permitted mod-
ulation grade.
A modulation factor of 100% means, that the amplitude of the motor voltage
(phase-phase voltage) is equal to the DC link voltage.
The effective value of the motor voltage can be increased over 100%. The output
voltage then deviates from the sinusoidal form.