Brainchild BTC-2500 - System Modes

1 6 System Modes1 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
PriorityPriority
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