Lenze DSD Manual do Utilizador descarregar pdf (Página 128)

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7Applications

7.9 Hoist drive with counterweight

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

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For cable-guided hoists both single- and multi-cable guides via guide pulleys, so-called reevings

(pulley block principle) are used. In the case of multi-cable guides the circumferential speed of the

driving pulley is an integer multiple of the lifting speed. The required torque at the driving pulley is

decreased by the reeving factor k

, and the speed increases by this factor.

The reeving has no impact on the drive power (except for highly dynamic movements).

[7-105] Reeving of the load

 Reeving for a cable guide via guide pulleys. The reeving factor N

in this case is 4 ().

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