Procedure #5

Table 9-12 explains how to troubleshoot Current/Time or Time/Current Proportional Output failure.

Table 9-12 Troubleshooting Time/Current or Current/Time Proportional

Output Failure

Step

1

2

3

4

5

6

7

What to do

Make sure the controller is configured for Time/Current or Current/Time Proportional output.

Check the field wiring.

Make sure all the configurable tuning constants, limits, and configuration data stored in the controller are correct. Reconfigure, if necessary.

Check the relay output.

Check the Current Proportional Output.

Recalibrate the controller.

Change MCU/Output board.

How to do it

Make Output Algorithm Set Up group function prompt OUT ALG or OUT2 ALG = TI CUR or CUR TI.

Refer to Section 3 - Configuration.

Make sure the NO or NC contact wiring is correct at the rear terminals.

Refer to Section 2 - Installation for details.

Refer to Section 3 - Configuration to check all this data and how to reconfigure.

Put the controller into Manual mode. Vary the output above and below the present value. Observe OUT indicator on the operator interface.

Put the controller into Manual mode and change the output from 0 % to

100% (4-20 mA). Use a DC milliammeter at the rear terminals to verify the output.

Refer to Section 8 - Output Calibration for details.

Refer to Table 9-23.

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Honeywell UDC 3300 manual Procedure #5