United Security Products AVD-45c Manual Pagina 272

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258 UDC 6300 Process Controller Product Manual 1/03
8.5 Background Tests, Continued
Table 8-6 Background Tests, continued
Lower
Display
Reason for Failure How to Correct the Problem
IN1 RANGE
IN2 RANGE
IN3 RANGE
IN4 RANGE
IN5 RANGE
Input out of range. The process input
is outside the range limits.
Input 5 Pulse Input - Pulse Input less
than zero value or greater than span
value.
ATTENTION
If the range goes
outside the range limits, the controller
will switch to Manual and the
configured Failsafe output value.
1. Make sure the range and actuation are
configured properly.
2. Check the input source.
3. If the controller has not been field calibrated,
see Section 3 - Configuration and change the
input to a different type. Enter it, loop through
the status tests, then return the input type to
the original one.
4. If the controller has been field calibrated,
recalibrate the controller.
PV RANGE
A. PV out of range.
B. Loop Input algorithm exceeds
the PV limit
A1. Make sure the input signal is correct.
A2. Make sure the Bias setting is correct.
A3. Recheck the calibration. Use Bias of 0.0.
B1. Reconfigure the Input algorithm.
RV RANGE
RV out-of-range 1. Make sure the input signal is correct.
2. Make sure the Ratio and Bias settings are
correct.
3. Recheck the calibration. Use a Ratio of 1.0
and a Bias of 0.0.
DO FAILED
The read state of Digital Output 1
through 4 does not compare with the
correct state.
1. Make sure the connections are correct.
2. Check if the connections are shorted.
3. Does the load exceed 300mA?
4. Is there a closed Digital Input switch
connected to an active Digital Output?
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