Lenze DSD Manual do Utilizador descarregar pdf (Página 452)

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18 Drive dimensioning messages

18.4 Lenze gearbox

452

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

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18.4.6 Utilisation of the clutch >100 % regarding the speed

18.4.7 Thermal overload when mineral gearbox oil is used

18.4.8 Utilisation is xxx %, regarding the max. torque

Warning!

The utilisation of the clutch (motor-gearbox) relative to the speed is xxx %. Thus the limit value of 100 %

is exceeded.

Cause Effects Possible remedies

The medium motor speed is too high. • The clutch between motor and

gearbox is overused.

• The clutch is destroyed after a

short time!

• Select a different gearbox.

• Optimise application.

Check of the torque load

( 332)

Note!

When mineral oil is used, the gearbox will be thermally overloaded.

Use Viton shaft sealing rings and use synthetic oil!

Cause Effects Possible remedies

Mineral oil is less temperature-sta-

ble, less powerful and has a smaller

viscosity range than synthetic oil.

Use of mineral gearbox oil:

• The gearbox is too hot.

• The oil pressure increases.

• The shaft sealing rings wear out.

• The service life of the gearbox oil

is considerably reduced.

• Use synthetic gearbox oil.

• When synthetic gearboxes are

used, Viton shaft sealing rings

have to be used.

Thermal utilisation

( 339)

Note!

The utilisation of the gearbox is xxx %, regarding the max. torque.

Thus the limit value of 100 % is exceeded.

The gearbox is overloaded for a short time. The increased wear is within the permissible range.

The utilisation is xxx %, regarding the fatique strength.

Cause Effects Possible remedies

The gearbox is not rated for endur-

ance strength and will be overloaded

after the simplified fatigue strength

calculation.

• The service life of the gearbox is

reduced.

• The increased wear is within the

permissible range.

Select a different gearbox.

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