Tools

Use 2 screwdrivers:

  • a PZ 2 Phillips head screwdriver to remove the ground screw.

  • a flat-head screw driver to disengage locking tabs.

Removing an Adapter from an I/O Base

Electrical circuitry on the I/O base may be exposed when a Momentum processor or other adapter is not mounted.

To disassemble the processor and I/O base, follow these steps:

Step

Action

1

Work in a clean environment when you disassemble the processor and I/O base assembly.

2

Remove power from the I/O base by removing the terminal connectors.

3

Remove the assembled unit from its DIN rail or panel mounting surface.

4

If the I/O base includes a fixed standoff ground nut, remove the label on the front of the processor. Removing the label exposes the ground screw aperture located on the right front of the processor.

NOTE: This step applies only to assemblies with an I/O base that includes a standoff ground nut on its printed circuit board.

5

Use a PZ 2 phillips head screwdriver to remove the grounding screw.

NOTE: This step applies only to assemblies with an I/O base that includes a standoff ground nut on its printed circuit board.

6

Use the flat-head screwdriver to push in and disconnect the single locking tab on the right side of the module (1), and the 4 locking tabs on the top of the module (2):

7

After the locking tabs have been disengaged, use the flat-head screwdriver to release the 2 stabilizing snaps (3 and 4) on the bottom of the processor:

8

To remove the processor from the I/O base, rotate the side of the processor, which was previously detached in step 6, up and away from the base in a circular motion (5). Then push the processor in the indicated direction (6) to disengage it from the processor: