Aventics HF03 Betriebsanleitung Seite 71

See section 4
See section 2 in the bus
coupler operating
instructions
2,5-3 Nm
Fig. 9: Adding an I/O module (picture shows HF03)
AVENTICS | HF03/HF02 | 1987765493–BDL–001–AB
4. Screw the left side cover back on after the last I/O module
(3 hexagon socket-head screws, DIN 912 M4, wrench
width 3).
Tightening torque: 2.5 ... 3.0 Nm.
5. Reestablish connections.
6. Adjust configuration.
Conversion and extension
71