Lenze g500-B - Page 25

Determine correcon factor
Ambient temperature T
U
°C ≤ 40
Correcon factor k
TU
1
Installaon height amsl
≤ 1000 m ≤ 2000 m ≤ 3000 m ≤ 4000 m
Correcon factor
k
H
k
H
k
H
k
H
1 0.95 .90 .85
Determine product on the basis of the forces
Transmission element Gear wheels Sprockets Toothed belt pulleys Narrow V-belt
(depending on the
pretension)
(depending on the
pretension)
Addional radial force factor
f
Z
≥ 17 teeth: 1.0 ≥ 20 teeth: 1.0
With belt ghtener: 2.0 –
2.5
1.5 – 2.0
< 17 teeth: 1.15 < 20 teeth: 1.25
Without belt ghtener: 2.5
– 3.0
< 13 teeth: 1.4
Calculaon Check
Radial force
F
rad
N
´
= ´
L,max z
rad
M f
F 2000
dw
F
rad
≤ f
W
x F
rad,max
Axial force
F
ax
N
F
ax
≤ F
rad,max
x 0.5
dw Eecve diameter of transmission element in mm
f
W
Addional load factor
4Radial forces and axial forces ^ 51
Calculate output torque
Calculaon
Necessary output torque
M
2
N
m
³
´
L,max
2
H TU
M
M
k k
Calculate intensity
Calculaon
Intensity
F
I
+ + +
= £
+ +
L
M B Z
2
I
M B Z
J
J J J
i
F 1.25
J J J
i Rao of gearbox J
B
Moment of inera of brake
J
L
Moment of inera of the load J
Z
Addional moment of inera (handwheel, 2nd sha end ...)
J
M
Moment of inera of motor
Determine the product on the basis of the data obtained from the selecon tables
Selecon table Check
Output speed n
2
rpm n
L,max
≈ n
2
Output torque M
2
Nm M
L,max
≤ M
2
Selecon tables ^ 53
Informaon on project planning
Drive dimensioning
25