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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 129

7Applications

7.9 Hoist drive with counterweight

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7.9.2.3 Reeving, counterweight

For cable-guided hoists, also with counterweight, both single- and multi-cable guides via guide pul-

leys, so-called reevings (pulley block principle) are used.

[7-106] Reeving of counterweight

7.9.2.4 Mass of counterweight

7.9.2.5 Mass of hoisting cage

Symbol Description

Ctw

The reeving of the cable to the counterweight.

• The reeving is the ratio of the driving pulley cable velocity to the lifting speed of the counter-

weight.

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

Ctw

in this case is 3 ().

Symbol Description

Ctw

Mass of counterweight

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

"Mass of counterweight (hoist drive)" calculator

( 413)

Symbol Description

Cbn

Mass of the hoisting cage or conveying tools for the payload

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

Mass calculator

( 405)

1 2 ... 124 125 126 127 128 129 130 131 132 133 134 ... 495 496

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