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4/00 UDC 3300 Controller Product Manual 247
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 Power-up Tests
Lower Display Upper Display
RAM TEST PASS or FAIL
CONFTEST PASS or FAIL
CAL TEST 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:
Lower Display
Upper Display
FAILSAFE
PV value
(blinking)
Refer to “Status Tests” to determine which tests have failed and how to
correct them.
Position proportional
or 3 position step test
failures
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.