Lenze DSD Bedienungsanleitung Seite 30

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Seitenansicht 29
3User interface
3.1 Control and function elements
30
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
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3.1.3.3 "Motor" image
3.1.3.4 "Inverter" image
Symbol Description
P
N
Rated power of the motor
n
rated
Rated speed of the motor
M
rated
Rated torque of the motor
I
N
Rated motor current
A
th,max
Max. thermal utilisation of the motor
A(M
max
) Utilisation of the motor relative to the torque
Ratio of the max. required torque to the max. possible torque of the motor during operation
on the selected inverter and with the selected control mode:
M
max,req
/ M
max,M
A(M
rms
) Utilisation of the motor with reference to the effective torque and taking into account the ther-
mal time constant
A(M
dyn,M
) Dynamic utilisation of the motor
• Ratio of the max. occurring motor torque to the rated motor torque:
(M
max
/ M
N
)
k
f
Field weakening factor of the motor
k
J,max
Load-matching factor of the motor
Symbol Description
A(I
max
/ I
rated,M
) Utilisation of the inverter
• Ratio of the max. output current of the inverter (I
max
) to the rated motor current (I
N,M
).
If the inverter is highly overdimensioned with regard to the motor, the control quality de-
creases.
A(I
imp,max
) Thermal utilisation of the inverter relative to the power pulse current for 1 s or 60 s
A(I
red,max
) Utilisation of the inverter relative to the reduced max. output current
A
th,Brm
Thermal utilisation of the internal brake transistor
A
Brm
(ED) Utilisation of the internal brake transistor, relative to the i×t monitoring
A
max
Max. utilisation of the brake resistor
A
th
Thermal utilisation of the brake resistor
A
th,max
Max. thermal utilisation of the inverter relative to the reduced output current
I
max
Max. output current of the inverter selected
I
N
Rated current of the inverter selected
P
N
Rated motor power of the inverter selected
Type Type of brake resistor
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