Setpoint Rate/Ramp/Soak Program Operation
56 UDC3300 Expanded Model: DC330E User Manual 5/00
4.3 Start-up Procedure
Table 4-3 Procedure for Starting Up the Controller
Step Operation Press Action
1
Select the
loop
FUNCTION
LOOP 1/2
to toggle between Loop 1 and Loop 2, if configured.
2
Select
manual mode
MANUAL
AUTO
until “MAN” indicator is ON.
The controller is in manual mode.
3
Adjust the
output
▲ or ▼
to adjust the output value and ensure that the final control
element is functioning correctly.
Upper Display shows the PV value
Lower Display shows OUT and the output value in %.
4
Enter the
local setpoint
LOWER
DISPLAY
Upper Display shows the PV Value
Lower Display shows SP and the local setpoint value
▲ or ▼
to adjust the local setpoint to the value at which you want
the process variable maintained.
The local setpoint cannot be changed if the Setpoint
Ramp function is running. “R” appears in the upper
display.
5
Select
automatic
mode
MANUAL
AUTO
until “A” indicator is ON.
The controller is in Automatic mode.
The controller will automatically adjust the output to
maintain the process variable at setpoint, if the controller
is properly tuned.
6
Tune the
controller
SET UP
Tuning will be required on the first startup. First enable
“TUNE” selection in the Accutune Group.
Refer to Tuning Set Up group to ensure that the proper
selections for PROP BD or GAIN, RATE MIN, and RSET
MIN, or RSET RPM have been entered.
Use Accutune to tune the controller as follows:
1. Adjust setpoint to the desired value.
2. Switch to Automatic mode by pressing the
MANUAL/AUTO key.
3. Initiate Tuning by:
• Pressing the up arrow key when the lower display
prompt shows TUNE-OFF, or
• Pressing the LOWER DISPLAY and Up arrow
keys simultaneously, or…
• Using the Digital Input, if configured.
If it is necessary to stop or abort the tuning process, press
the MANUAL/AUTO key and the controller will return to
manual mode.
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