Tim.hi - Impulse Mode Setpoint; Tim.on - Minimum Valve Impulse Time Or On Time In Impulse Mode; Tim.of - Off Time In Impulse Mode; Dead.b - Deadzone Symmetrical To Setpoint - gefran 850 Installation And Instruction Manual

4.20.5. TIM.HI - Impulse mode setpoint

Acronym
TIM.HI IMPULSIVE MODE INTERVENTION THRESHOLD
The parameter shows and sets the impulse mode setpoint as a percentage of valve opening time TRAVL.
The control function is explained in detail in paragraph "5.14. Managing motorized valves" on page <?>.
Unit of measurement:
Options: 0.0...100.0

4.20.6. TIM.ON - Minimum valve impulse time or ON time in impulse mode

Acronym
TIM.ON ON TIME FOR IMPULSIVE MODE
The parameter shows and sets the minimum valve impulse time or ON time in impulse mode as a percentage of valve
opening time TRAVL.
Unit of measurement:
Options: 0.0...100.0

4.20.7. TIM.OF - OFF time in impulse mode

Acronym
TIM.OF OFF TIME FOR IMPULSIVE MODE
The parameter shows and sets OFF time in impulse mode as a percentage of valve opening time TRAVL.
A value below TIM.ON is forced to TIM.ON.
The TIM.On and TIM.OF functions are both excluded if the parameter equals "0.0".
Unit of measurement:
Options: 0.0...100.0

4.20.8. DEAD.B - Deadzone symmetrical to setpoint

Acronym
DEAD.B DEAD ZONE
The parameter shows and sets a band symmetrical to the setpoint. If PV is in this band, valve activity and the related
integral action is stopped.
It prevents frequent corrections of the valve position, with consequent electromechanical stress, following small changes
in the value of the PV.
Unit of measurement:
Options: 0.0...25.0
Scrolling message
% di TRAVL
Scrolling message
% di TRAVL
Scrolling message
% di TRAVL
Scrolling message
% of full scale of main or auxiliary input.
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Submenu Attributes
VALVE R W
Submenu Attributes
VALVE R W
Submenu Attributes
VALVE R W
Submenu Attributes
VALVE R W