You will recognize the correct belt tension by how far the belt is pressed in (B). The depth (B) the 
belt is pressed in depends on the distance between the drive pinion and deector pulley (A).
The following depths of the pressed-in belt (B) apply as a function of the distance between the 
drive pinion and deector pulley (A).
A (cm) 50 100 150 200
B (cm) 1.5 3 4.5 6
6.3 Connecting terminals
6.3.1 Conductor assignment of the motor plug
SIDOOR M3, MDG3, M4, MDG4, M5 and MDG5
Figure 6-3 Conductor assignment of the motor plug
Geared motors
6.3 Connecting terminals
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA 209