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Operation
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UDC3300 Basic Model: DC330B User Manual
51
Starting TUNE (Demand Tuning)
After TUNE has been enabled use the following procedure to start tuning.
Table 4-13 Procedure for Starting TUNE (Demand) Tuning
Step
Action
1
Set the setpoint to the desired value.
2
Switch to Automatic mode by pressing the Manual/Auto key.
3
Initiate Tuning by:
• pressing the
▲
key when the lower display prompt = TUNE-OFF,
• pressing the Lower Display and
▲
keys simultaneously, or
• using the digital input, if configured.
Aborting Tuning
If it is necessary to stop or abort the tuning process, press the MANUAL/AUTO key
and the controller will return to manual mode. You can also disable TUNE in the
ACCUTUNE Set Up group.
Tune for Duplex (Heat/Cool)
TUNE can be done for applications using duplex (heat/cool) control. During tuning,
Accutune requires that setpoint 1 will cause a Heating demand, and then the
calculated tuning parameters will be automatically entered as PID set 1. Likewise, it
requires that tuning at local setpoint 2 will cause a Cooling demand, and then the
cooling parameters will be entered as PID set 2.
The tuning sequence will cycle the controller’s output two full cycles between the
high output limit and 50% for HEAT or between 50% and the low output limit for
COOL while allowing only a small process variable change above and below the
setpoint during each cycle.
Configuring TUNE for Duplex (Heat/Cool)
To configure this item, refer to Section 3 – Configuration.
Содержание DC3300
Страница 1: ...Sensing and Control UDC3300 Basic Model DC330B User Manual 51 52 25 78 5 00 ...
Страница 26: ...Installation 18 UDC3300 Basic Model DC330B User Manual 5 00 ...
Страница 70: ...Setpoint Rate Ramp Soak Program Operation 62 UDC3300 Basic Model DC330B User Manual 5 00 ...
Страница 72: ...Environmental and Operating Conditions 64 UDC3300 Basic Model DC330B User Manual 5 00 ...
Страница 74: ...Model Selection Guide 66 UDC3300 Basic Model DC330B User Manual 5 00 ...
Страница 80: ...Position Proportional Calibration 72 UDC3300 Basic Model DC330B User Manual 5 00 ...
Страница 82: ...Input Ranges 74 UDC3300 Basic Model DC330B User Manual 5 00 ...
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