BONFIGLIOLI active - 7 Operational behaviour if the bus connection fails

12 11/06
4.1.5 ACT/ACU 401 (18.5 to 30.0 kW, 400 V)
Type designation
ACT/ACU 401 -27 -29 -31
Motor-side output
Recommended
motor shaft output
P kW 18.5 22.0 30.0
Mains-side input
Nominal voltage
U
V 400
Energy dissipation,
heat sink [2 kHz]
P
v
W 420 470 750
Energy dissipation,
interior
P
v int
W 160 175 265
Thermal resistance
Thermal resistance
R
th
K/W
0.08 0.07 0.05
Mechanical
Dimensions
HxWxD
mm 250x225x171
Heat sink HxW mm 230x225
T
k max
–T
U
ΔT K 40
T
he thermal resistance values and the technical data referrin
g
to the coolin
g
concep
t
of the "Cold Plate" variant indicated in the above table apply in the following condi-
tions:
- no airflow
- clearance of approx. 300 mm above and below as well as 100 mm on both the left
and right side of the frequency inverter
-
The energy dissipation values are valid for a switching frequency of 2 kHz. The
ener
g
y dissipation values are also valid for the other switchin
g
frequencies, as a
t
these operating points, the output current is reduced. For the output current re-
duction to be considered, refer to the chapter "Technical Data" in the instructions.