Leuze electronic MSI 400 Series Manual page 25

Ä Fold the module onto the hat rail.
Ä Using a screwdriver, move the snap-on foot against the hat rail until the snap-on foot latches into posi-
tion with an audible click.
Ä Make sure that the module is securely seated on the hat rail.
Attempt to pull the module from the hat rail using slight pressure. If the module stays connected to the
hat rail during this test, then the installation is correct.
Step 2: Installation of gateways or expansion modules
Ä Using a screwdriver, pull the snap-on foot outward.
Ä Hang the module on the hat rail.
Important! Make sure that the shielding spring fits correctly.
The shielding spring of the module must be placed onto the hat rail so that it is secure and has good
electrical contact.
Leuze electronic
Installation and basic configuration
MSI 400 25