Brainchild BTC-2500, User Manual

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1 6 System Modes 1 6 System Modes
The controller performs close loop control under its normal control mode condition.
The controller will maintain its normal control mode when you are operating user menu,
setup menu or display mode, reloading default values or applying event input signal.
Under certain conditions the normal control mode will transfer to an
.
The exception modes include :
and All these modes perform in an open loop control except
the auto-tuning mode which performs ON-OFF plus PID close loop control. The mode
transfer is governed by the priority conditions. A lower priority mode can not alter a
higher priority mode, as shown in Figure 1.6.
Exception Mode
Sleep Mode, Manual Mode, Failure Mode, Calibration
Mode Auto-tuning Mode.
The controller performs close loop control under its normal control mode condition.
The controller will maintain its normal control mode when you are operating user menu,
setup menu or display mode, reloading default values or applying event input signal.
Under certain conditions the normal control mode will transfer to an
.
The exception modes include :
and All these modes perform in an open loop control except
the auto-tuning mode which performs ON-OFF plus PID close loop control. The mode
transfer is governed by the priority conditions. A lower priority mode can not alter a
higher priority mode, as shown in Figure 1.6.
Exception Mode
Sleep Mode, Manual Mode, Failure Mode, Calibration
Mode Auto-tuning Mode.
Figure 1.6
System Mode Priority Figure 1.6
System Mode Priority
? Mode ? Mode
Sleep Mode? Sleep Mode?
Failure Mode? Failure Mode?
No
No
No
Yes
Yes
Yes
Manual Mode? Manual Mode?
Request
Normal
Control
Mode Request
Normal
Control
Mode Request
Auto-tuning
Mode Request
Auto-tuning
Mode Request
Calibration
Mode Request
Calibration
Mode
Priority Priority
High
Low
The calibration mode, auto-tuning mode and normal control mode are in the same
priority level. The sleep mode is in the highest priority. The calibration mode, auto-tuning mode and normal control mode are in the same
priority level. The sleep mode is in the highest priority.
System Modes
Sleep Mode :
Manual Mode :
Failure Mode :
Calibration Mode :
Auto-tuning Mode :
Normal Control Mode :
See Section 4-11.
See Section 3-23.
See Section 3-17.
See Chapter 6.
See Section 3-20.
See Section 3-24, 3-26, 4-1
System Modes
Sleep Mode :
Manual Mode :
Failure Mode :
Calibration Mode :
Auto-tuning Mode :
Normal Control Mode :
See Section 4-11.
See Section 3-23.
See Section 3-17.
See Chapter 6.
See Section 3-20.
See Section 3-24, 3-26, 4-1
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UM25001C