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148 UDC 3300 Controller Product Manual 4/00
5.2 How to Power Up the Controller
Apply power
When power is applied, the controller will run three diagnostic tests. All
the displays will light and then the controller will go into automatic mode.
Diagnostic tests
Table 5-1 lists the three diagnostic tests.
Table 5-1 Power Up Diagnostic Tests
Prompt on Lower Display Condition
RAM TEST Check RAM
CONFTEST Check Non-volatile Memory
CAL TEST Check Calibration
Test failures
If one or more of these tests fail, the controller will go to the Fail-safe
Manual Mode, and “FAILSAFE” will flash in the lower display.
If the output type is Position Proportional, and AUTO-CAL has never
been done, a prompt “CAL MTR” will appear suggesting that the
controller be calibrated.
Troubleshooting
Refer to “STATUS TESTS” in Section 9 - Troubleshooting to identify and
correct the problem.