10 Micro850 24-Point Programmable Controllers
Publication 2080-IN007A-EN-P - September 2012
expansion I/O modules, make sure that there is 50 mm (1.97 in.) of space on all sides after
attaching the optional parts.
DIN Rail Mounting
The module can be mounted using the following DIN rails: 35 x 7.5 mm x 1 mm
(EN 50 022 - 35 x 7.5).
Before mounting the module on a DIN rail, use a flat-blade screwdriver in the DIN rail latch
and pry it downwards until it is in the unlatched position.
1. Hook the top of the DIN rail mounting area of the controller onto the DIN rail, and
then press the bottom until the controller snaps onto the DIN rail.
2. Push the DIN rail latch back into the latched position.
Use DIN rail end anchors (Allen-Bradley part number 1492-EA35 or 1492-EAHJ35)
for vibration or shock environments.
To remove your controller from the DIN rail, pry the DIN rail latch downwards until it is in
the unlatched position.
Panel Mounting
The preferred mounting method is to use four M4 (#8) screws per module. Hole spacing
tolerance: ±0.4 mm (0.016 in.).
Follow these steps to install your controller using mounting screws.
1. Place the controller against the panel where you are mounting it. Make sure the
controller is spaced properly.
2. Mark drilling holes through the mounting screw holes and mounting feet then remove
the controller.
3. Drill the holes at the markings, then replace the controller and mount it.
Leave the protective debris strip in place until you have finished wiring any other
devices.
Use Surge Suppressors
Because of the potentially high current surges that occur when switching inductive load
devices, such as motor starters and solenoids, we recommend the use of some type of surge
For environments with greater vibration and shock concerns, use the panel
mounting method, instead of DIN rail mounting.
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