Honeywell UDC 3300 What happens at power-up, Power-up Tests Upper Display, Test failures

9.3 Power-up Tests

What happens at power-up

When the controller is powered-up, three tests are run by the UDC 3300 software to ensure memory integrity. As the tests are run, the displays will appear as shown in Table 9-3.

Table 9-3

Lower Display

RAM TEST

CONFTEST

CAL TEST

Power-up Tests

Upper Display

PASS or FAIL

PASS or FAIL

PASS or FAIL

Test failures

If any of these three tests fail, FAIL will appear momentarily in the upper display, then a display test is run, after which the controller will go into manual mode and you will see:

Upper Display

PV value

Lower Display

FAILSAFE

(blinking)

Position proportional or 3 position step test failures

Refer to “Status Tests” to determine which tests have failed and how to correct them.

For controller configured for Position Proportional or 3 Position Step control with motor position indication and Auto-cal has never been done, a prompt CAL MTR will appear suggesting that the controller be calibrated.

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