Lenze DSD - Manual (Page 120)

7 Applications
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)