How To Power Up The Controller; Table 5-1 Power Up Diagnostic Tests - Honeywell UDC3300 Product Manual

5.2

How to Power Up the Controller

Apply power
Diagnostic tests
Test failures
Troubleshooting
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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.
Table 5-1 lists the three diagnostic tests.
Table 5-1 Power Up Diagnostic Tests
Prompt on Lower Display
RAM TEST
CONFTEST
CAL TEST
If one or more of these tests fail, the controller will go to the Failsafe
Mode, and "FAILSAFE" will flash in the lower display.
Refer to "STATUS TESTS" in Section 7 — Troubleshooting to identify
and correct the problem.
UDC3300 Limit Controller Product Manual
Condition
Check RAM
Check Non-volatile memory
Check Calibration
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