Using Automatic Tune At Start-Up For Duplex (Heat/Cool); Table 4-10 Procedure For Using Automatic Tune At Start-Up For Duplex Control - Honeywell UDC3500 Product Manual

4.10.3

Using AUTOMATIC TUNE at start-up for Duplex (Heat/Cool)

Used when DUPLEX has been configured for AUTOMATIC. This is the preferred
selection for most Heat/Cool applications when tuning a new chamber. This selection
will sequentially perform both Heat and Cool tuning without further operator
intervention.

Table 4-10 Procedure for Using AUTOMATIC TUNE at Start-up for Duplex Control

Step
1
2
3
4
5
6
7
3/07
Operation
Configure LSP1
Configure LSP2
Switch to
"Automatic" Mode
Show Tuning
Prompt
Initiate Tuning
Tuning in operation
UDC3500 Universal Digital Controller Product Manual
Monitoring and Operating the Controller
Press
Until SP (Local Setpoint 1) shows
Lower
in the lower display.
Display
Until LSP1 is a value within the
or
Heat Zone (output above 50%).
Until 2SP (Local Setpoint 2) shows
Lower
in the lower display.
Display
Until LSP2 is a value within the
or
Cool Zone (output below 50%).
Until the "A" indicator is lighted (on
Man/Auto
controllers with Manual option).
Until "TUNE OFF" is shown on
Lower
lower display.
Display
Select "DO SLOW" or "DO FAST"
in lower display.
Lower Upper display will show a "T" as
Display
long as ACCUTUNE process is
operating. When process
completes, tuning parameters are
calculated and lower display will
show "NO TUNE" prompt.
Result
209