186
Operating Instructions ACU
09/08
The default
Cut-off voltage
603 (UC)
and
Cut-off frequency
604 (FC) are derived
from the motor data
Rated voltage
370 and
Rated frequency
375. With the parame-
terized
Starting voltage
600 (US), the linear equation of the V/f-characteristic re-
sults.
V
5.0
f
Hz
0.00
Hz
50.00
V
5.0
-
V
400.0
US
f
0
FC
US
UC
U
+
⋅
⎟
⎠
⎞
⎜
⎝
⎛
−
=
+
⋅
⎟
⎠
⎞
⎜
⎝
⎛
−
−
=
The
Rise frequency
602 (FK) is entered as a percentage of the
Cut-off frequency
604 (FC)
, the default value is f=10 Hz. The output voltage for the default
Voltage
rise
601 (UK) is calculated as U=92.4V.
(
)
(
)
(
)
V
92.4
1.1
V
5
Hz
50
0.2
Hz
0
Hz
50
V
5
-
V
400
UK
1
US
FC
FK
0
FC
US
UC
U
=
⋅
⎥
⎦
⎤
⎢
⎣
⎡
+
⋅
⋅
⎟
⎠
⎞
⎜
⎝
⎛
−
=
+
⋅
⎥
⎦
⎤
⎢
⎣
⎡
+
⋅
⋅
⎟
⎠
⎞
⎜
⎝
⎛
−
−
=
15.1
Dynamic Voltage Pre-Control
The
dyn. voltage pre-control
605 accelerates the control behavior of the current limit
controller (parameter
Operation mode
610
) and the voltage controller (parameter
Operation mode
670
). The output voltage value resulting from the V/f characteristic
is changed by addition of the calculated voltage pre-control.
Parameter
Settings
No.
Description
Min.
Max.
Fact. sett.
605 Dyn. voltage pre-control
0 %
200 %
100 %
Operating Instructions ACU
09/08
186
Summary of Contents for Bonfiglioli Vectron ACTIVE CUBE ACU 201 Series
Page 1: ...ACTIVE CUBE Operating Instructions Frequency Inverter 230V 400V 0 25 kW 132 kW ...
Page 2: ......
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