Rockwell Automation 1734-CTM_VTM POINT I/O Common Terminal Module and Voltage Terminal Module - Manual (Page 5)

POINT I/O Common Terminal Module and Voltage Terminal Module 5
Publication 1734-IN024A-EN-E - March 2005
Install the Mounting Base
To install the mounting base on the DIN rail, proceed as follows.
1. Position the mounting base vertically above the installed units
(adapter, power supply, or existing module).
2. Slide the mounting base down so that the interlocking side
pieces to engage the adjacent module or adapter.
3. Press firmly to seat the mounting base on the DIN rail. The
mounting base snaps into place.
Install the Module
Install the module before or after mounting base installation. Be sure
to correctly key the mounting base before installing the module into
the mounting base. In addition, be sure to position the mounting
base locking screw horizontal referenced to the base.
1. Using a bladed screwdriver, rotate the keyswitch on the
mounting base clockwise until the number required for the
type of module you are installing aligns with the notch in the
base.
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.