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256 UDC 3300 Controller Product Manual 4/00
Procedure #4
Table 9-11 explains how to troubleshoot Time Proportional Output
failure.
Table 9-11 Troubleshooting Time Proportional Output Failure
Step What to do How to do it
1
Make sure the controller is
configured for Time Proportional
output.
Make Output Algorithm Set Up group
function prompt OUT ALG = TIME or
TIME D or function prompt OUT2 ALG
= TIME.
Refer to Section 3 - Configuration.
2
Check the field wiring. Make sure the NO or NC contact
wiring is correct at the rear terminals.
Refer to Section 2 - Installation for
details.
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. Put the controller into Manual mode.
Vary the output above and below the
present value. Observe OUT indicator
on the operator interface.
5
Change MCU/Output board. Refer to Table 9-23.