6.2.15.1.6 Online adaptation of the characteristic
With the exception of mo32 ASM v/f offset, all parameters for defining the v/f char-
acteristic are part of the dr parameter group. They must always be confirmed with
dr99 motordata control und cannot be changed via process data.
If an online adaptation of the v/f characteristic is necessary, the control can addi-
tionally adapt the voltage via process data via parameter mo32.
Parameter mo32 ASM v/f offset is directly added to the value of the v/f characteris-
tic. mo32 is not saved. After power off/on, the value of mo32 is zero again.
v/f operation example of an asynchronous machine:
Unless otherwise specified, the following settings apply:
Rated voltage: dr05 rated voltage = 330V
Rated frequency: dr06 rated frequency = 50 Hz
Boost: dr45 ASM v/f boost = 5%
Point of support V1 dr46 ASM v/f V1 = 50%
Point of support F1 dr47 ASM v/f F1 = 15 Hz
DC link voltage is00 compensation mode = 2
compensation is02 Uic comp voltage limit = 400V
Maximum modulation grade fc04 max. modulation grade = 100%
DC link voltage: ru14 act. Uic voltage = 620 V
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