Rockwell Automation 1790D-NOV2/TNOV2 CompactBlock LDX Analog Modules - Manual (Page 22)

Publication 1790-UM001A-EN-P - March 2002
2-6 Installation and Wiring
DIN Rail Mounting
1. Hook the top of slot of the block over the DIN Rail.
2. Pull down on the locking lever while pressing the block against the
rail.
3. Push up on the locking lever to secure the block to the rail
when block is flush against the rail.
Mount the Optional Expansion Blocks
Mount the expansion block by connecting it to a previously-installed
CompactBlock LDX I/O base or expansion block.
Beginning with the base block, you can mount your expansion blocks
horizontally or vertically:
•
horizontally (left to right) - add expansion blocks in a
end-to-end configuration
•
vertically (up or down) - add expansion blocks either up or
down in a back-to-back configuration. In this configuration, you
must use the optional 15cm ribbon cable (1790-15CMCBL) and
alternately position the blocks in a right-side up, upside-down
fashion.
You can mount your blocks on a panel or DIN rail as described in the
previous section.
Locking Lever
f
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
UPSIDE DOWN
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
The longer expansion cable
(1790-15CMCBL) will allow
up to 7cm of space in between
blocks.
Horizontal mounting
Vertical mounting