Lenze DSD - Manual (Page 153)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
153
7 Applications
7.13 Belt conveyor for bulk material
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7.13.2.3 Mass of the payload
7.13.2.4 Mass of the belt
7.13.2.5 Angle of tilt
Application with a slope (slide)
For the angle of tilt, only a positive value (slope) can be entered. However, you can dimension an ap-
plication with a slope by specifying a negative speed. If the application is moving on a slope with
negative speed, it goes backwards.
Procedure:
• Enter the value of the slope into the Angle of tilt input field.
• Enter the value with a negative sign into the Speed input field.
7.13.2.6 Fill level coefficient
7.13.2.7 Shunt-force coefficient
Symbol Description
m
L
Mass of payload
• Value can be entered directly or calculated by the uniform load and conveying length.
"Uniform load mass (material handling technology)" calculator ( 415)
Symbol Description
m
Blt
Mass of belt
• Value can be entered directly or calculated by the uniform load and conveying length.
"Uniform load mass (material handling technology)" calculator ( 415)
Symbol Description
β Angle of tilt (gradient)
• The value can be entered in degrees or as a percentage.
• The max. angle of tilt as a first approximation is: β ≥ arctan(μ)
(static friction between load and surface).
Symbol Description
f Filling factor
• The guide value applies to filling degress of the belt from 0.7 ... 1.1.
• Value can be entered directly or selected from the "Physical coefficients" table.
Fill level coefficient
Symbol Description
c Shunt-force factor
• The sum of all the peripheral resistances, such as belt bending resistance, friction resistance
from chutes, belt cleaners etc. is taken into consideration in this factor.
• Value can be entered directly or selected from the "Physical coefficients" table.
Shunt-force factor