Lenze DSD Manual de usuario Pagina 120

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7Applications
7.8 Hoist drive without counterweight
120
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
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7.8.2.5 Additional moment of inertia
7.8.2.6 Cable diameter
7.8.2.7 Width of cable drum
7.8.2.8 Max. lifting height
7.8.2.9 Cable mass
Symbol Description
J
add
Moment of inertia of the cable drum, the deflection and guiding rollers, etc.
The moment of inertia of the hoisting cage does not have to be taken into consideration here
since it is already included.
• The moment of inertia has an effect on the dynamic torque!
• Value can be entered directly or calculated using the inertial calculator.
Inertial calculator
( 407)
Symbol Description
d
Rop
Outside diameter of cable
Symbol Description
b
Cor
Width of the cable drum
Is used to determine the number of layers of the cable on the drum, and thus the increase in
the effective drum diameter.
Symbol Description
h
hoi
Maximum achievable lifting height
Is used to determine the number of layers of the cable on the drum, and thus the increase in
the effective drum diameter.
• If the winding layers do not have to be taken into consideration, h
hoi
is set to 0.
Symbol Description
m
Rop
Mass of cable
• Value can be entered directly or calculated using the auxiliary calculator.
"Mass of rope/cable (hoist drive)" calculator
( 414)
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