Emerson ROC364 Manual de Instruções descarregar pdf (Página 32)

ROC364 Instruction Manual

2-18 Master Controller Unit, I/O Module Rack, and Wiring Rev Jun/05

2.5.11 Replacing the Battery

This section details how to replace the ROC battery.

When repairing units in a hazardous area, change components only in an area known to be non-

hazardous.

There is a possibility of losing the ROC configuration and historical data held in RAM while

performing the following procedure. As a precaution, save the current configuration and

historical data to permanent memory as instructed in Section 2.5.2, RAM Backup Procedure, on

page 2-13.

During this procedure, all power is removed from the ROC and devices powered by the ROC.

Ensure all connected input devices, output devices, and processes remain in a safe state when

power is removed from the ROC and when power is restored to the ROC.

1. Back up your RAM to avoid losing data. Refer to Section 2.5.2, RAM Backup Procedure, on

page 2-13.

2. Remove power from the ROC at the power terminal plug in.

3. Remove the screws from the front cover of the ROC.

4. Remove the screw from the communications cards if necessary.

5. Remove the communications cards.

6. Remove the old battery from the other battery socket (B1) by sliding the hold-down clip to one

side and lifting the battery from the MCU board. If the clip does not readily rotate, you may need

to loosen the screw that secures the hold-down clip.

7. Install the new battery and tighten the clip.

8. Replace the communications card.

9. Replace the communications card’s screw.

10. Replace the second communications card if necessary.

11. Replace the front cover and screws.

12. Reconnect power to the ROC by plugging in the power terminal connector.

13. Using ROCLINK configuration software, check the configuration data including ROC Displays

and FSTs, and load or modify them as required. In addition, load and start any user programs as

needed.

14. Verify that the ROC performs as required.

15. If you changed the configuration, save the current configuration data to memory by selecting

ROC > Flags > Write to EEPROM or Flash Memory Save Configuration as instructed in the

applicable ROCLINK configuration software user manual.

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Emerson ROC364 Manual de Instruções Página 32