Honeywell UDC 3300 manual Procedure #3

Procedure #3

Table 9-10 explains how to troubleshoot Position Proportional Output failure symptoms.

Table 9-10 Troubleshooting Position Proportional Output Failure

Step

1

2

What to do

Make sure the controller is configured for Position Proportional output.

Check the field wiring.

How to do it

Make Output Algorithm Set Up group function prompt OUT ALG = POSITN.

Refer to Section 3 - Configuration.

Refer to Section 2 - Installation for Position Proportional Wiring information.

3

Check the output.	Put the controller into Manual mode
	and change the output from 0 % to
	100 %.

4

5

Check whether the motor drives in both directions. If it does go to Step 6.

Check whether the motor drives in either direction. If the motor drives in one direction, check the slidewire. If the motor does not drive in either direction, check the motor.

See the Position Proportional calibration procedure in Section 8 for motor slidewire calibration.

Refer to the motor instructions.

6

7

8

9

Check the output voltage to the slidewire.

Make sure the output relays are actuating properly.

Recalibrate the controller.

Change MCU/Output board.

Should equal from 1.3 to 1.0 volts. See wiring in the installation section for terminal designations. The feedback slidewire output voltage must vary with the valve position.

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

If they are not working properly, check the field wiring, then go to Step 5.

If they are, go to Step 8.

Refer to Section 8 - Output

Calibration.

Refer to Table 9-23.

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