Signal modules
05/02 AWB2725-1452GB
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Mounting the module rack
The module rack can either be snapped onto a top hat (DIN) rail,
or screwed directly onto the mounting plate.
Mounting on the top hat rail
X Use a screwdriver to pull out the locking bar until the catch
snaps into position. The locking bar is then held in this
position .
X Place the module rack on the top hat mounting rail so that the
top edge of the rail fits into the slot, and then slide the module
rack into the correct position .
X Press down the catch of the locking bar. The bar snaps in behind
the edge of the mounting rail. Check that the module rack is
firmly seated .
X If you want to fit an expansion module rack: push it to the left,
until the bus connector of the expansion module rack can be
plugged into the bus connector socket of the XC-CPU400/600
or the basic or expansion module rack. Take care that the bus
connectors of the module racks are completely engaged, in
order to ensure reliable electrical contact.
Mounting on the mounting plate
The spring contacts that protrude from the back of the module
rack are intended to provide a ground for the modules. They must
have a reliable electrical contact with the mounting plate.
Take care that the contact areas are protected from corrosion and
– if you are using painted mounting plates – that the paint layer is
removed from the contact areas.
X Plug the bus connector of the expansion module rack into the
bus connector of the XC-CPU400/600 or the basic or expansion
module rack. Take care that the bus connectors of the module
racks are completely engaged, in order to ensure reliable
electrical contact.
Detaching the module rack
X Use a screwdriver to pull out the locking bar until the catch
snaps into position. The locking bar is then held in this
position .
X Only with expansion module racks: Slide the expansion module
rack along the top hat rail to the right, until the bus connectors
are disengaged.
X Take the module rack off the rail.
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Caution!
The expansion module rack must only be plugged in or
pulled out when the power is switched off. FIrst detach
the CPU or I/O modules that were plugged into the
module rack. Discharge yourself from any electrostatic
charge before touching electronic modules. Voltage peaks
on the bus connector may cause malfunction or damage
to the modules.
h
Read the manual AWB2700-1428D for information on
mounting the XC-CPU400/600, and manual
AWB2724-1453D for the XC-CPU100/200.
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