Configuration
Function blocks
Master frequency processing (DFSET)
8
8.2
8.2.5

8.2−22
EDSVF9383V EN 7.1−04/2012
Stretching factor
The stretching factor defines the ratio with which the drive is to run faster
or slower than the setpoint.
The setpoint at DFSET−IN is evaluated. The result is output to DFSET−POUT.
DFSET−POUT + DFSET−IN @
DFSET−VP−DIV
C0533
The stretching factor results from numerator and denominator.
ƒ The numerator (DFSET−VP−DIV) can be defined as a variable from the
analog signal source or as a fixed value from a code.
Æ’ Enter the denominator under C0533.
 Note!
When calculating the stretching factor, the input signal at
DFSET−VP−DIV is not processed in a scaled mode. A signal of
100 % corresponds to a count value of 16384.
Gearbox factor
The gearbox factor defines the ratio by means of which the drive speed can
be changed additionally.
The setpoint at DFSET−IN, multiplied by the stretching factor, is evaluated.
The result is output at DFSET−NOUT [in % of n
max
(C0011)].
DFSET−NOUT + DFSET−IN @
DFSET−VP−DIV
C0533
@
DFSET−RAT−DIV
C0033
The gearbox factor results from numerator and denominator.
ƒ The numerator (DFSET−RAT−DIV) can be defined as a variable from the
analog signal source or as a fixed value from a code.
Æ’ Enter the denominator under C0033.
 Note!
When calculating the gearbox factor, the input signal at
DFSET−RAT−DIV is not processed in a scaled mode. A signal of
100 % corresponds to a count value of 16384.
Setpoint conditioning with
stretching and gearbox factor
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