LENZE
Duty
Duty type
Intensity
class
I
Smooth running, no or minor shocks
F
I
≤ 1.25
II
Irregular running, average shocks
1.25 < F
I
≤ 4
III
Irregular running, major shocks
F
I
> 4
and/or alternating load
Drive dimensioning
Dimensioning
2-4
2
G-motion atex en 06/2011
1. Determination of the required load capacity
[
[
[
8 h
16 h
24 h
Betriebsfaktor
k
III
II
I
100
200
300
400
500
600
700
800
900
1000
1200
1500 1/h
0
0.8
0.9
1.0
1.0
1.1
1.1
1.2
1.2
1.2
1.3
1.3
1.3
1.4
1.4
1.4
1.5
1.5
1.5
1.6
1.6
1.6
1.7
1.7
1.8
Specify the torque
M
2
and speed
n
2
required at the output.
Calculate the required motor power
P
1
=
M
2
· n
2
9550 ·
±
Specify the duty class:
Specify the temporal influences:
˘
Operating time/day
˘
Switching operations/hour
Determine the application factor k for the machine from the diagram
Geared motor requirement: c (selection table) ≥ k
Gearbox requirement: M
2 perm
(selection table) ≥ M
2
· k
[
[
[
[
F
I
(geared motor) =
J
ext
+ J
motor
J
motor
F
I
(gearbox) =
J
ext
+ J
A
J
A
Switching operations/hour
Operating time/day
Application factor k