Accutune Error Codes; Table 4-14 Procedure For Accessing Accutune Error Codes; Table 4-15 Accutune Error Codes - Honeywell UDC3500 Product Manual

Universal digital controller
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Monitoring and Operating the Controller
4.10.6

ACCUTUNE Error Codes

Table 4-14 Procedure for Accessing Accutune Error Codes

Step
Operation
Select Accutune
1
Set-up Group
2
Go to Error Code
Prompt
Error Code
(Upper Display)
RUNNING
ACCUTUNE RUNNING
NONE
NO ERRORS OCCURRED
DURING LAST ACCUTUNE
PROCEDURE
PROCESS IDENTIFICATION
ID FAIL
FAILURE
Applies only to SP or SP+PV
tuning. An illegal value for
Gain, Rate or Reset was
calculated.
ABORT
CURRENT ACCUTUNE
PROCESS ABORTED
caused by the following
conditions:
a. Operator changed to
Manual mode
b. Digital Input detected
c. In Heat region of output
and a Cool output calculated
or vice versa.
SP2
LSP2 not enabled or LSP1 or
LSP2 not in use (only applies
to Duplex Tuning)
OUTPUT LIMIT REACHED
OUTLIM
(HIGH OR LOW)
Applies only to SP or SP+PV
tuning. Output insufficient to
get to SP value.
200
Press
Upper Display = SETUP
Setup
Setup
Lower Display = ACCUTUNE
Upper Display = (an error code)
Func
Loop 1/2
Lower Display = AT ERROR
Table 4-15 lists all the error codes, definitions, and
fixes.

Table 4-15 Accutune Error Codes

Definition
UDC3500 Universal Digital Controller Product Manual
Result
The Accutune process is still active (Read Only)
None
Illegal Values
– try Accutune again.
• Untunable process – contact local application
engineer.
Try Accutune again
Enable LSP2 and configure the desired LSP1 and
LSP2 setpoints. See Section 4.10.
Check the Output Limits in the Control or Control 2
Set Up groups. See Section 3.17 or Section 3.18.
Verify that the correct Process Gain Value, KPG or
KPG2, is entered. See Section 3.7.
ATTENTION This error will cause the controller to
switch from Automatic to Manual Mode. The output
Fix
10/05

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