Emerson Process Management IM-106-910Xi Uživatelský manuál stáhnout pdf (Strana 70)

Xi Advanced Electronics

6-8

Instruction Manual

IM-106-910Xi, Original Issue

November 2010

AC Relay Board

Replacement

Use the procedure that follows to replace and set up the AC Relay board in

the Xi.

Replacing an Existing AC ReIay Board

1. Loosen the four screws securing the Xi cover. The screws are captive

and do not need to be completely removed.

2. Swing the Xi cover down to expose the inner components.

3. Tag and disconnect wiring for the Relay In.

4. Slide the AC Relay Board part way out of the Xi enclosure.

5. Tag and disconnect the two 3-position plugs for the AC input and

transmitter probe heater wiring. Remove the AC Relay Board

completely from the Xi enclosure.

6. Partially slide the new AC Relay Board into the Xi enclosure. Ensure the

board is correctly aligned within the slots in the enclosure.

7. Connect the two 3-position plugs for the AC input and transmitter probe

heater wiring. Slide the AC Relay Board fully into the Xi enclosure.

Figure 6-7. I/O & AC Relay Board Flame Safety Interlock Wiring

Disconnect and lock out power before working on any electrical components.

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Emerson Process Management IM-106-910Xi Uživatelský manuál Strana 70