Rockwell Automation 1734-IB4D POINT I/O 24V dc 4-Channel Discrete Input Module Installation Instructions - Manual (Page 13)

POINT I/O 24V dc Digital Diagnostics Input Module 13
Publication 1734-IN029A-EN-E - January 2007
To install the module, use this procedure.
1. Use a bladed screwdriver to rotate the keyswitch on the
mounting base clockwise until the number required for the
type of module being installed aligns with the notch in the
base.
2. Be sure the DIN-rail locking screw is in the horizontal
position, noting that you cannot insert the module if the
locking mechanism is unlocked.
3. Insert the module straight down into the mounting base and
press to secure, until the module locks into place.
4. Insert the end opposite the handle into the base unit, noting
this end has a curved section that engages with the wiring
base.
5. Rotate the terminal block into the wiring base until it locks
itself in place.
6. Snap the RTB handle into place on the module, if an I/O
module is installed.
WARNING
When you insert or remove the module while backplane power
is on, an electrical arc can occur. This could cause an explosion
in hazardous location installations.
Be sure that power is removed or the area is nonhazardous
before proceeding. Repeated electrical arcing causes excessive
wear to contacts on both the module and its mating connector.
Worn contacts may create electrical resistance that can affect
module operation.