ABB ACS 301-2P7-1 - Page 4 Drive Parameters

62 ACS 300 User’s Manual
Chapter 7 - Drive Parameters
Example: Fan system with bad vibration from 18 Hz to 23 Hz and
from 46 Hz to 52 Hz. Running speed set to 60 Hz with reference.
Set the parameters as follows:
CRIT f1L = 18 Hz and CRIT f1H = 23 Hz
CRIT f2L = 46 Hz and CRIT f2H = 52 Hz
Figure 7-4 Example of critical frequencies setting in a fan system
with bad vibrations at frequency ranges 18 Hz to 23 Hz and 46 Hz
to 52 Hz.
f
motor
[Hz]
f
REF
[Hz]
f1L
18
f1H
23
f2L
46
f2H
52
52
46
23
18