Error Codes; Table 4-16 Procedure For Accessing Accutune Error Codes; Table 4-17 Accutune Error Codes - Honeywell UDC2500 Product Manual

4.11.6

Error Codes

Table 4-16 Procedure for Accessing Accutune Error Codes

Step Operation
1 Select Accutune
Set-up Group
Go to Error Code
2
Prompt
Error Code
(Upper Display)
RUN
ACCUTUNE RUNNING
NONE
NO ERRORS OCCURRED
DURING LAST ACCUTUNE
PROCEDURE
PROCESS IDENTIFICATION
IDFL
FAILURE
Autotune has aborted
because an illegal value of
GAIN, RATE, or reset was
calculated.
ABRT
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)
Aborting Accutune
To abort Accutune and return to the last previous operation (SP or output level), press
key to abort the Accutune process.
M-A/RESET
4/07
Press
Upper Display = SET
Setup Setup
Lower Display = ATUNE
Upper Display = (an error code)
Function Function Function
Lower Display = ATERR
Table 4-17 lists all the error codes, definitions, and
fixes.

Table 4-17 Accutune Error Codes

Definition
UDC2500 Universal Digital Controller Product Manual
Monitoring and Operating the Controller
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.
Fix
109