Speed control
15
Application examples
15.5
L
15.5-5
EDS82EV903-1.0-11/2002
Adjustment of frequency input X3/E1
l C0425 = 0
– Normalisation frequency =100 Hz
– Maximum frequency = 300 Hz
l Activation of frequency input with C0410/24 = 1.
– Ensure that no other digital signal is assigned to E1 (no double
assignment)!
l Assign the actual process controller value to the frequency input under
C0412 (C0412/5 = 2)
l Gain C0426
– The input frequency at X3/E1 is normalised to the value of the preselected
frequency (100 Hz), i.e. internally 100 Hz correspond to the output
frequency set under C0011.
– C0426 must be recalculated after every change of C0011.
C0426 =
f
N
⋅ p
z ⋅ (C0011 − f
s
)
⋅ 100 %
C0426 =
100 Hz ⋅ 2
6 ⋅ (57.5 Hz − 3.7 Hz)
⋅ 100 % = 62 %
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