Emerson ROC827 instruction manual Removing an Expandable Backplane, Locking clips and tabs

ROC827 Instruction Manual

2.5.2 Removing an Expandable Backplane

Note: Before you remove an EXP, you must power down the ROC827, disconnect all wiring from all modules, and remove the entire unit from the DIN rail. Once the entire ROC827 is free of the DIN rail, you can detach an individual EXP.

To remove an EXP from an existing ROC827 base unit:

1.Remove the right-hand end cap from the EXP as described in Section 2.3.1, “Removing and Replacing End Caps.”

2.Remove the wire channel covers on either side of the EXP you want to detach, as described in Section 2.3.2, “Removing and Installing Wire Channel Covers.”

3.Turn the ROC827 around so that the back of the unit faces you (as shown in Figure 2-6).

Note: It may be useful to place the ROC827 face-down on a flat surface with the EXP you want to detach hanging free of the surface’s edge.

Locking clips and tabs

Figure 2-6. Plastic Snaps on the Back of the EXP

Issued Mar-06 Installation and Use 2-12