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1/03 UDC 6300 Process Controller Product Manual 261
8.7 Troubleshooting Procedures, Continued
Procedure #2
Table 8-9 explains how to troubleshoot Current Proportional Output
failure symptoms.
Table 8-9 Troubleshooting Current Proportional Output Failure
Step What to do How to do it
1
Make sure the controller is
configured for Current output.
Make Set Up group prompt “OUT
ALG”. Function prompt “OUT
ALG” = selection “CURRENT” or
"OUT2 ALG = selection
"CURRENT".
Refer to Section 3 - Configuration.
2
Check the field wiring. Output impedance must be less
than or equal to 1000 Ohms.
3
Make sure all the configurable
tuning constants, limits, and
configuration data stored in the
controller are correct.
Reconfigure, if necessary.
Refer to Section 3 - Configuration
to check all this data and how to
reconfigure.
4
Check the output.
Press the LOWR DISP
key until
you see OUT in the Lower
Display. Change the output from 0
to 100% (4-20 mA).
Use a DC milliammeter at the rear
terminals 20 and 21 for current
output #1 or terminals 4 and 5 for
the second current output to verify
the output.
5
Recalibrate the Current
Proportional Output.
Refer to Section 7 - Output
Calibration for details.
Continued on next page
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