ROC800-Series Instruction Manual
3-26 Power Connections Revised July-2017
Failure to exercise proper electrostatic discharge precautions, such as
wearing a grounded wrist strap may reset the processor or damage
electronic components, resulting in interrupted operations.
When working on units located in a hazardous area (where explosive
gases may be present), make sure the area is in a non-hazardous state
before performing procedures. Performing these procedures in a
hazardous area could result in personal injury or property damage.
1. Perform the backup procedure described in Preserving
Configuration and Log Data in Chapter 6, Troubleshooting.
2. Remove the wire channel cover.
3. Remove power from the ROC800.
4. Unscrew the two captive screws on the front of the Power Input
module.
5. Remove the Power Input module.
Note: If you intend to store the ROC800 for an extended period, also
remove the internal backup battery located on the CPU module
(see Figure 3-9 or Figure 3-10).
Figure 3-10. Backup Battery on Series 2 CPU Module
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