Emerson Process Management IM-106-910Xi instruction manual AC Relay Board Replacement

Xi Advanced Electronics

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.

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

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

6-8