Improved Control - Danfoss VLT AQUA FC 202 Design Manual

VLT® AQUA Drive FC 202
Design Guide
H
(m w g)
s
60
50
B
40
30
20
C
10
750r pm
0 100
P
(kW )
shaf t
60
50
40
30
1
B
20
10
1
C
750r pm
0 100
Illustration 12: Energy
Table 9: Result
3
m /h Distribution
% Hours
350 5 438
300 15 1314
250 20 1752
200 20 1752
150 20 1752
100 20 1752
Σ 100 8760

4.3.4 Improved Control

Using a drive to control the flow or pressure of a system improves control. A drive can vary the speed of the fan or pump, obtaining
variable control of flow and pressure. Furthermore, a drive can quickly adapt the speed of the fan or pump to new flow or pressure
conditions in the system.
Obtain simple control of process (flow, level, or pressure) using the built-in PI control.
26 | Danfoss A/S © 2020.09
A
1650r pm
1350r pm
1050r pm
(
200 300 400
1
A
1650r pm
1350r pm
1050r pm
(
200 300 400
Valve regulation
Power
A - B
1 1
42.5
38.5
35.0
31.5
28.0
23.0
–
3
)
m /h
3 )
m /h
Consumption
kWh
18.615
50.589
61.320
55.188
49.056
40.296
275.064
Product Family Overview
Drive control
Power Consumption
A - C kWh
1 1
42.5 18.615
29.0 38.106
18.5 32.412
11.5 20.148
6.5 11.388
3.5 6.132
– 26.801
AJ300847815559en-000101 / 130R0337