BONFIGLIOLI ACTIVE Cube ACU 401-15 User Manual

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
active pres
sure in the system via the intake nozzle of the fan. The active pressure
has a square pro
portion to the volume flow and thus forms the control figure for the
volume flow con
trol. The calculation corresponds to the "Law of Proportionality"
which is generally 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 fl
ow, 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
Differential Time 618
I
Integral Time 445
+
+
-
Max. P-Component
Limitation
Max. I-Component
Volume flow
224 Operating Instructions ACU 06/13

BONFIGLIOLI ACTIVE Cube ACU 401-15 Specifications

General

Brand	BONFIGLIOLI
Model	ACTIVE Cube ACU 401-15
Category	Inverter
Language	English