Selection criteria
S
E
LECT
ING CRI
T
ERIA
Asynchr
o
nous motor
selection
5.
· 185 ·
Ref.2003
QC-PDS
HARDWARE
When controlling a frictional load, for example horizontal movements such
as a conveyor belt or a movable table, the required power depends on the
friction coefficient µ.
.
The power required in this case
P
F
, is calculated as follows.
Power needed to accelerate/decelerate an asynchronous
spindle motor.
There are three methods to control the acceleration and deceleration
process of the machine spindle:
Acceleration limited by time.
Different acceleration ramps based on the speed reached.
F. H5/7
Frictional load. Required power.
µ
Friction coefficiente
Mechanical efficiency
m
L
Table mass in kg
V
Linear speed in m / min
F. H5/8
Acceleration limited by time.
T. H5/5
Acceleration limited by time.
Method
Acceleration limited by time
Control
Speed increases linearly in time until the command
speed is reached.
Comment
The acceleration torque is constant
F. H5/9
Different accelerations depending on speed.
C a r g a
M o t o r
V e l o c i d a d
speed
load
motor
P
F
·m
L
·V
6120·
=
(kW)
adjust
time
0
Ta
speed
adjust
time
0
Ta
speed
Содержание QC-PDS
Страница 1: ...DRIVE QC PDS Hardware manual Ref 2003...
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Страница 80: ...2 POWER SUPPLIES Power supplies 80 Ref 2003 QC PDS HARDWARE...
Страница 138: ...3 DRIVES Drives 138 Ref 2003 QC PDS HARDWARE...
Страница 174: ...4 AUXILIARY MODULES Auxiliary modules Ref 2003 174 QC PDS HARDWARE...
Страница 302: ...8 INSTALLATION Installation Ref 2003 302 QC PDS HARDWARE...
Страница 322: ...Connection diagrams 10 CONNECTION DIAGRAMS 322 Ref 2003 QC PDS HARDWARE 322 This page intentionally left blank...
Страница 366: ...12 COMMERCIAL MODELS Commercial models Ref 2003 QC PDS HARDWARE 366...
Страница 367: ...ANNEXES...
Страница 368: ...ANNEX A1...
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Страница 398: ...ANNEX A3...
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