Func - Defining Valve Function; Key.mo - Enabling Valve Operation With Keys; Travl - Valve Actuator Travel Time; Tim.lo - Minimum Power Change For Valve Drive - gefran 850 Installation And Instruction Manual

4.20.1. FUNC - Defining valve function

Acronym
FuNC VALVE CONTROL FUNCTION
The parameter shows and sets the valve function, i.e., if it controls a heating or cooling system.
Unit of measurement:
Options: HEAT1 = PID.1 heat control power
COOL1 = PID.1 cool control power
if it is enabled PID2.E in EN.FUN function:
HEAT2 = PID.2 heat control power
COOL2 = PID.2 cool control power

4.20.2. KEY.MO - Enabling valve operation with keys

Acronym
KEY.MO VALVE OPEN/CLOSE FROM IN/DEC BUTT ENABLE
The parameter shows and sets enabling of valve opening and closing with controller keys
Unit of measurement:
Options: OFF
On

4.20.3. TRAVL - Valve actuator travel time

Acronym
TRAVL ACTUATOR TRAVEL TIME
The parameter shows and sets the time taken by the actuator to bring the valve from "full open" position to "full closed"
position or vice versa.
The time is obtained by trial or deduced from the valves technical data.
Unit of measurement:
Options: 0...2000

4.20.4. TIM.LO - Minimum power change for valve drive

Acronym
TIM.LO MINIMUM PULSE TIME
The parameter shows and sets the minimum power change needed to drive the valve.
The parameter is calculated as a percentage of the TRAVL parameter and serves to prevent excess activity of the valve,
with consequent electromechanical stress.
The control function is explained in detail in paragraph "5.14. Managing motorized valves" on page <?>.
Unit of measurement:
Options: 0.0...25.0
Scrolling message
-
Scrolling message
-
= Keys do not act directly on valve opening and closing
= Keys enabled for manual valve opening and closing
Scrolling message
Seconds
Scrolling message
% di TRAVL
80209C_MHW_850-1650-1850_02-2020_ENG_pag. 145
Submenu Attributes
VALVE R W
Submenu Attributes
VALVE R W
and in manual mode.
Submenu Attributes
VALVE R W
Submenu Attributes
VALVE R W