9.4 Status Tests

Introduction

How to check the status tests

When required, the results of these tests can be checked to determine the reason the controller has gone to Failsafe.

The procedure in Table 9-4 tells you how to display the results of the status tests. Table 9-5 lists the tests, the reason for the failure, and how to correct the problem.

Table 9-4 Procedure for Displaying the Status Tests Results

Step

1

2

Operation

Select

STATUS

Set Up Group

Read the status tests results

Press

SET UP

FUNCTION

LOOP 1/2

Action

until you see:

Upper Display

READ

Lower Display

STATUS

until you see:

Upper Display

NO or YES YES indicates a failure

Lower Display

FAILSAFE

Successive presses of the [FUNCTION] key will display the results of the status tests in the following order:

RAM TEST

CONF TEST

CAL TEST

FACT CRC

Identify the problem and correct the failure as shown in Table 9-5.

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Honeywell UDC 3300 manual Status Tests, Introduction How to check the status tests, RAM Test Conf Test CAL Test Fact CRC