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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

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)

) % % 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)

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)

th,G

) % % 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)

Field weakening factor of the motor

• Specifies to which extent the motor is driven into field

weakening by the selection of the ratio.

•k

< 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

Number of gearbox stages (display value)

act,G

Actual ratio of the gearbox

per,out

Nm lbfft Rated torque of the gearbox at the output end

1 2 ... 337 338 339 340 341 342 343 344 345 346 347 ... 495 496

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