Procedure #4 - Time Proportional; Table 7-8 Troubleshooting Time Proportional Output Failure - Honeywell UDC3500 Product Manual

Troubleshooting/Service
7.6.4 Procedure #4 – Time Proportional
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.
Check relay.
4
Change relay board.
5
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What to do
UDC3500 Universal Digital Controller Product Manual
How to do it
Make Output Algorithm Set Up group function
prompt OUT ALG (Loop 1) or OUT2 ALG (Loop 2)
= RLY or RLYD.
Refer to Section 3.11.
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 (Loop 1) or OUT3
indicator (Loop 2) on the operator interface.
Contact should change state. 0 % open, 100 %
closed. Listen for a click from the relay when the
OUT1 or OUT3 indicator changes state.
Change relay.
Installation instructions supplied with the new
board.
10/05