Table 7-8 Troubleshooting Time Proportional Output Failure - Honeywell UDC3200 Product Manual

Universal digital controller
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7
Make sure the output relays
are actuating properly.
Recalibrate the controller.
8
9
Change the two Output Relays
or the Dual Relay Board
(depending upon unit)
Procedure #4
Table 7-8 explains how to troubleshoot Time Proportional Output failure.

Table 7-8 Troubleshooting Time Proportional Output Failure

Step
1
Make sure the controller is configured
for Time Proportional output.
2
Check the field wiring.
3
Check the output.
4
Check relay.
5
Change MCU board.
12/04
What to do
UDC3200 Universal Digital Controller Product Manual
Put the controller into Manual mode. Vary the
output above and below the present value.
Observe "OUT" indicators and the output value
("OUT") on the lower display. When the "OUT
1" indicator is on, the output value should be
increasing. When the "OUT 2" indicator is on,
the output value should be decreasing.
If these are not working properly, check the
field wiring, then go to Step 5.
If they are, go to Step 8.
Refer to Section 6 - Output Calibration.
Installation instructions supplied with the new
relays or board.
How to do it
Make Output Algorithm Set Up group function
prompt OUTALG = RLY or RLYD.
Refer to Section 3 - Configuration.
Make sure the NO or NC contact wiring is correct.
Refer to Section 2 - Installation for details.
Put the controller into Manual mode. Vary the
output above and below the present value.
Observe OUT1 indicator on the operator interface.
Contact should change state. 0 % open, 100 %
closed. Listen for a click from the relay when the
OUT1 indicator changes state.
Change relay.
Installation instructions supplied with the new
board.
Troubleshooting/Service
163

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