Leuze electronic MSI-EM-IO84 Serie Guia Del Usuario página 8

4 Installation/Deinstallation
4.1 Steps for mounting the extension modules
The MSI 400 system is only suitable for mounting
in the switch cabinet with a minimum protection
class of IP 54.
WARNING
 In an MSI 400 system, the MSI 4xx base module is on the far
left, immediately followed by both optional gateways on the
right. Then followed by the extension modules.
 Make sure appropriate ESD protective measures are maintained
when mounting. Otherwise, the internal safety bus may be
damaged.
 The connection between the modules is done via the integrated
connector in the housing.
 Please note, when replacing a module, the MSI 400 modules
are pushed apart approx. 10 mm before the corresponding
module can be removed from the standard rail.
 Take the appropriate measures to prevent foreign objects from
obstructing the connector openings.
 Mount acc. to EN 50274.
 The modules are contained in a 22.5 mm wide installation
housing for 35 mm standard rails in accordance with EN 60715.
Mounting the module
4.1.1
 Pull the latching foot outwards with a screwdriver.
 Hook the module onto the standard rail.
Important! Make sure the shield spring is seated correctly. The
module's shield springs must be securely attached to the
standard rail and have a good electrical contact.
 Swivel the module onto the standard rail.
 Slide the latching foot against the standard rail with a
screwdriver until the latching foot snaps into place with an
audible CLICK.
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 Make sure that the module is firmly mounted onto the standard
rail. Try to remove the module from the standard rail with a little
pressure. If the module remains firmly connected to the rail with
this test, the mounting is correct.
If multiple modules are mounted:
 Slide the individual modules together in the direction of the
arrow until the lateral connector between the modules audibly
snaps into place.
 Install an end terminal on the leftmost module and the
rightmost module.
After mounting
4.1.2
After mounting the modules, the following steps are required:
 Electrically connect the modules.
 Configure the modules.
 Check installation before initial commissioning.
4.2 Steps for removing the extension modules
 Disconnect the MSI 400 system from the power supply.
 Remove the plug-in block terminals with the wiring and the end
terminals.
 Slide the modules apart separately in the direction of the arrow
until the lateral connector is disconnected.
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02/2018 – 50134614-01 – 8/29