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DURADRIVE Drive Controllers
8
Constructing the control cabinet
8.1
Power dissipation
Determining power dissipation
HDC01.1-A040N (not ventilated):
4 kHz and 8kHz
DOK-DURADR-HDC01.1****-PR02-EN-P
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
Power dissipation is determined by the current load and the regenerated
power. The actual generated power dissipation depends on the relevant
load cycle, which is limited by the servo motor being used.
On the average, the maximum continuous standstill current I
motor flows through the drive controller
⇒ Look up in the relevant motor document both the continuous standstill
current I
and torque M
dN
⇒ Determine rms torque M
⇒ Determine the following relationship current I
Fig. 8-1:
Determining current I
⇒ Using current I, find the corresponding value of the current-dependent
power dissipation P
V,HDC
Dissipation in the control cabinet".
⇒ Add both power losses (P
200
180
160
140
120
100
80
60
40
20
0
0
0,5
1
0
1
2
P
:
Power dissipation
V
I:
Current (sine peak value)
Fig. 8-2:
Determining power dissipation in the control cabinet for each drive
controller HDC01.1-A040N (ventilated) with 4 kHz and 8 kHz
Constructing the control cabinet
.
dN
of the application (see motor document).
eff
I
*
M
dN
eff
I =
M
dN
, using the diagrams "Determining Power
and P
).
V,HDC
V,Bleeder
1,5
2
2,5
3
3
4
5
6
I [A]
8-1
of the
dN
3,5
4
4,5
5 (8 kHz)
7
8
9
10 (4 kHz)
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