At “Time-out":
n
Alarm 1 is active
n
The clock character has stopped moving
n
The Time display shows either 00:00 or the time-out period
depending on the configuration selection
n
The Timer is ready to be reset
At “Reset”:
n
Alarm 1 relay is inactive
n
The time display shows the time-out period
n
The time-out period can be changed at this time using the or
keys.
n
The Timer is ready to be activated
Accutune III
Introduction
Accutune III (TUNE) may be used for self-regulating and single
integrating processes. This autotuning method is initiated on-
demand, typically at initial start-up.
There are no other requirements necessary, such as prior knowledge
to the process dynamics or initial or post tune process line-out to
setpoint or manual output.
Also, the setpoint value is not required to change in order to initiate
the tuning process, but the controller must be in the Automatic mode
to start tuning. The process need not be in a static (lined out) state
and may be dynamic (changing with a steady output).
Configuration check
Make sure:
n
Accutune is slected as TUNE. See Accutune Set Up Group for
more information.
189
Chapter 5 - Monitoring and Operating the Controller
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