Emerson Process Management IM-106-910Xi Power Connections Xi Advanced Electronics

Instruction Manual

IM-106-910Xi, Original Issue November 2010

Xi Advanced Electronics

Figure 2-6. Power Connections - Xi Advanced Electronics

Optional Flame Safety Interlock

Traditional Architecture Cable Connections

9.If your system is configured for two channel operation, repeat steps 2 through 7 to connect the other signal wires.

10.Remove the connector from the power supply board located on the left-hand side of the card rack inside the Xi.

11.See Figure 2-6. Connect the line, or L1 wire to the L1 terminal and the neutral, or L2 wire, to the N terminal.

12.Reinstall the power supply connector in the power supply board.

13.Close and fasten the Xi cover.

A flame safety interlock by Emerson Process Management is available for heater power disconnect whenever there is a loss of the process flame or a heater runaway condition (heater over-temperature) in the O2 Probe. A simplified wiring diagram for the flame safety interlock is shown in Figure 2-7. This input is internally powered by the Xi and is actuated via a dry contact output from the user’s flame scanner. A closed contact indicates a flame is present. An open contact indicates a loss of flame.

A traditional architecture configuration is used to provide for remote location of the transmitter electronics. All electronics are housed inside the Xi. A multi-conductor power/signal cable connects between the probe and the Xi. Use the following procedure to connect the traditional architecture probe to the Xi.

NOTE

The Traditional Architecture cable is provided at the specified length and is ready for installation. The cable glands must be properly terminated to maintain EMC/EMI noise protection.

1.Run the 7-conductor cable between the traditional architecture probe and the installation site for Xi. Use new cable conduit or trough as needed.

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