Lenze DSD Manual do Utilizador descarregar pdf (Página 147)

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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 147

7Applications

7.12 Belt conveyors for unit loads

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7.12.2.3 Mass of supporting rollers

7.12.2.4 Moment of inertia of rollers

7.12.2.5 Additional force

Symbol Description

aux

Total mass of supporting rolls

•If μ

aux

= 0, the friction by the supporting rolls is disregarded, a value for the mass then does

not have to be entered.

• Value can be entered directly or calculated using the mass calculator.

Mass calculator

( 405)

 Note!

The mass of the supporting rolls is used for calculating the friction forces.

Symbol Description

sum

Moment of inertia of the drive roll and all supporting rolls.

• Has an impact on the dynamic torque!

• Value can be entered directly or calculated using the inertial calculator.

Inertial calculator

( 407)

 Note!

When calculating the mass inertia, bear in mind that the supporting rolls and the drive

roll can have different diameters!

Symbol Description

add

The additional force results from backing forces, lateral friction, deflectors, etc.

• The backing force can be calculated using the auxiliary calculator.

"Backing force (material handling technology)" calculator

( 418)

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