5
Startup
Controlling the roller speed
Operating instructions – ECDriveS
®
29
5.3
Controlling the roller speed
To calculate the roller speed based on the motor speed selected on DIP switch
switches 1 to 5, the diameter of the respective roller as well as the gear unit reduction
ratio of the motor roller must be known.
The following table shows the speed classes of the ECR motor rollers and their re-
spective reduction ratios.
Speed class
Gear unit reduction ratio
10
67.22 : 1
15
45 : 1
20
32.94 : 1
25
27 : 1
35
18.3 : 1
45
15 : 1
60
10.98 : 1
75
9 : 1
95
6.818 : 1
125
5 : 1
175
3.66 : 1
215
3 : 1
The formula for calculating the roller speed in meters per seconds:
v =
n
i
D
60
Mot
roller
× ×
π
20132896779
The following example shows the calculation for one roller with the speed class 75 and
50 mm roller diameter at 5000 min
-1
:
5000
9
0 05
60
× ×
=
π
.
1.45 m/s
20132978059
28507088/EN – 11/2018
