BONFIGLIOLI act 401 User Manual

Operating Instructions ACTIVE06/07 169
06/07 Operating Instructions ACTIVE 169
Operation mode indirect volume flow control,
parameter Operation Mode 440 = 5
This operation mode is suitable for volume flow control based on pressure measure-
ment.
The square rooted actual value enables, for example, direct measurement of the ac-
tive pressure in the system via the intake nozzle of the fan. The active pressure has a
square proportion to the volume flow and thus forms the control figure for the volume
flow control. The calculation corresponds to the "Law of Proportionality" which is gen-
erally valid for centrifugal machines.
Adaptation to the application in question and measurement are done via the
Ind. vol-
ume flow control factor
446. The actual values are calculated from the system data to
be parameterized, reference pressure and volume flow, according to the bad point
method, as described in chapter "Volume Flow and Pressure".
The output frequency is limited by the
Minimum frequency 418 and Maximum fre-
quency
419.
Technology Controller
Act. Percentage Source
478
Ref. Percentage Channel Ref. Percentage Source
476
Amplification
444
P
I
Integral Time
445
+
+
-
Max. P-Component
Limitation
Max. I-Component
Volume flow

BONFIGLIOLI act 401 Specifications

General

Brand	BONFIGLIOLI
Model	act 401
Category	DC Drives
Language	English