Honeywell UDA2182 manual Procedure for installing Input and Output wiring, Step Action

Inputs and Outputs Wiring

Table 7-2 Procedure for installing Input and Output wiring

Step Action

1Go to Configuration setup to view the displays showing analog input, relay, and analog output use. Note the assignments shown. You must wire the unit to match these assignments in order for the analyzer to work as expected (See Section 6).

ATTENTION

Turn off the power to the analyzer.

More than one switch may be required to remove power.

2With power off, open the case:

•Loosen the four captive screws on the front of the bezel.

•Grasp the bezel on the right side. Lift the bezel gently and swing the bezel open to the left.

3Refer to Figure 7-1 for the location of the terminal board retainer. Loosen the screws that hold the retainer and slide the retainer left until the retainer tabs disengage from the terminal boards.

4Insert a screwdriver into the tab in the terminal board to be wired and pull out gently. Slide the board half way out. There is a notch in the terminal board into which you can slide the retainer tabs and hold the boards in place while wiring.

5Connect the inputs from the electrode or cells to the terminals in accordance with the configuration setup assignments. Refer to the wiring diagram provided with the electrode or cell, and to Figure 7-2 through Figure 7-20

6Analog outputs (In addition to the standard outputs, one more is available as an option). See Option Board Wiring - Figure 7-20). Connect the outputs from the Analyzer terminals in accordance with the configuration setup assignments. Refer to the wiring diagrams provided with the field devices receiving the signals, and to Figure 7-2 through Figure 7-20.

7If the relay outputs are to be used, leave the unit open and powered down. The relays can be used for Time Proportioning Output, Pulse Frequency Output, and Digital Output control as well as alarm annunciation. (In addition to the standard relays, two more are available as an option. See Option Board Wiring - Figure 7-20). Connect the outputs from the Analyzer terminals in accordance with the configuration setup assignments. Refer to the wiring diagrams provided with the external device and to Figure 7-2 through Figure 7-20.

These relays can be programmed to de-energize or energize on alarm. Use the Maintenance configuration setup to specify relay state. (NOTE 1)

CAUTION: Alarm circuits are not internally fused in the analyzer. Provision for fuses in external circuits is recommended.

8Slide the retainer to the left then slide the terminal board back into place. Slide retainer to engage the tabs and tighten the screws.

9Close the Bezel and secure four captive screws to a torque value of .20Nm (1.5 Lb-in). Power up the unit.

Do not apply power until the bezel is closed.

Note 1: If set to de-energize on alarm, this means that when an alarm occurs (or the discrete control point becomes active), the relay coil will be de-energized. The NC contacts will then be closed and the NO contacts will be open. Conversely, during normal non-alarm operation (or when the control point is not active) the NC contacts will be open, and the NO contacts will be closed. If de-energize on alarm is selected, a power loss will force all relays to the same position as an alarm condition.

January 2009 UDA2182 Universal Dual Analyzer Product Manual 119