United Security Products AVD-45c Manual Pagina 270

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256 UDC 6300 Process Controller Product Manual 1/03
8.4 Status Tests, Continued
Status Test,
continued
Table 8-5 Status Tests, continued
Test
(Lower Display)
Definition Upper
Display
Reason for Failure How to Correct the Failure
FACT CRC
Factory
calibration
test
PASS No Failure Factory calibration cyclic redundancy
test passed
FAIL Factory set input
constants have been
changed due to the
change in input type.
1. Cycle through Status to clear the
error.
2. Check the calibration. Make sure 0
and 100% are correct values.
3. Recalibrate if step 1 is
unsatisfactory. Refer to Section 6 -
Input Calibration.
LOOPTEST
DMCS
Loopback
Test
PASS No Failure Loopback Test passed.
FAIL Unable to communicate
with the controller
through DMCS
1. Check to see if the DMCS board is
installed properly.
2. Check the rear terminal wiring.
See Section 2 - Installation for
terminal designations.
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