11 drive dimensioning – Lenze DSD User Manual

Page 343

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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23

343

11

Drive Dimensioning

11.4

Lenze gearbox selection

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

c

~

Load capacity

• Ratio of the permissible rated torque of the gearbox

to the supplied rated torque of the motor-gearbox

combination.

A

th,M

~

(M

rms

)

%

%

Thermal utilisation of the motor calculated in advance

with reference to the effective torque

• Specifies to which extent the motor is thermally load-

ed by the selection of the transmission ratio.

Relevant topics:

Motor selection ( 313)

Possible messages:

Utilisation >100 %, regarding the effective torque

( 455)

k

j

~

Load-matching factor of the motor calculated in ad-

vance.

• Load-matching factor resulting from the selected ra-

tio.

Relevant topics:

Load-matching factor ( 321)

Possible messages:

Max. mismatch is higher than permissible mismatch

( 456)

P

th,av,M

kW

kW

Medium power loss of the motor

i

req,K

Setpoint ratio of the additional drive element

i

~

Precalculated total ratio of the Lenze gearbox (G) and the

additional drive element (K)

Parameter

Unit

Description

Metric

Imperial

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