Lenze DSD - Manual (Page 342)

11 Drive Dimensioning
11.4 Lenze gearbox selection
342
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
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Description of the parameters
Parameter Unit Description
Metric Imperial
A ~ (M
max
) % % Utilisation calculated in advance with reference to the
max. drive torque.
• Check with regard to the short-time strength of the
gearbox.
• If this value exceeds 100 %, this can lead to the de-
struction of the gearbox!
Relevant topics:
 Check of the torque load ( 332)
Possible messages:
 Utilisation >200 %, regarding the max. torque ( 450)
A ~ (M
eq
) % % Utilisation calculated in advance, with reference to the
equivalent torque
• Provides an indication for the endurance strength of
the gearbox.
Relevant topics:
 Check of the torque load ( 332)
Possible messages:
 Utilisation >100 % regarding the equivalent torque
( 450)
A ~ (n
max
) % % Utilisation calculated in advance, with reference to the
maximum speed.
• Utilisation of the gearbox with regard to the short-
time maximum possible speed.
• If this value exceeds 100 %, operation is not possible
(destruction).
Relevant topics:
 Check of the torque load ( 332)
Possible messages:
 Utilisation >100 % regarding the max. speed ( 451)
A
th,G
~ (n
av
) % % Utilisation of the gearbox calculated in advance with ref-
erence to the average speed.
Relevant topics:
 Thermal utilisation ( 339)
Possible messages:
 Utilisation >100 % regarding the thermal speed
( 451)
k
f
Field weakening factor of the motor
• Specifies to which extent the motor is driven into field
weakening by the selection of the ratio.
• k
F
< 1: the motor is only operated in the basic setting
range.
Relevant topics:
 Motor selection ( 313)
Type Gearbox type
• Designation of one part of the type code, consisting of
the gearbox type, frame size, and number of stages.
SZ Size
rated
G
Number of gearbox stages (display value)
i
act,G
Actual ratio of the gearbox
M
per,out
Nm lbfft Rated torque of the gearbox at the output end