Honeywell UDC 3300 사용자 설명서
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UDC 3300 Controller Product Manual
257
Procedure #5
Table 9-12 explains how to troubleshoot Current/Time or Time/Current
Proportional Output failure.
Proportional Output failure.
Table 9-12
Troubleshooting Time/Current or Current/Time Proportional
Output Failure
Step
What to do
How to do it
1
Make sure the controller is
configured for Time/Current or
Current/Time Proportional output.
configured for Time/Current or
Current/Time Proportional output.
Make Output Algorithm Set Up group
function prompt OUT ALG or OUT2
ALG = TI CUR or CUR TI.
function prompt OUT ALG or OUT2
ALG = TI CUR or CUR TI.
Refer to Section 3 - Configuration.
2
Check the field wiring.
Make sure the NO or NC contact
wiring is correct at the rear terminals.
wiring is correct at the rear terminals.
Refer to Section 2 - Installation for
details.
details.
3
Make sure all the configurable
tuning constants, limits, and
configuration data stored in the
controller are correct. Reconfigure,
if necessary.
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.
check all this data and how to
reconfigure.
4
Check the relay output.
Put the controller into Manual mode.
Vary the output above and below the
present value. Observe OUT indicator
on the operator interface.
Vary the output above and below the
present value. Observe OUT indicator
on the operator interface.
5
Check the Current Proportional
Output.
Output.
Put the controller into Manual mode
and change the output from 0 % to
100 % (4-20 mA). Use a DC
milliammeter at the rear terminals to
verify the output.
and change the output from 0 % to
100 % (4-20 mA). Use a DC
milliammeter at the rear terminals to
verify the output.
6
Recalibrate the controller.
Refer to Section 8 - Output Calibration
for details.
for details.
7
Change MCU/Output board.
Refer to Table 9-23.