Genvex OPTIMA 270 Operating Instructions Manual page 20

Menu
EK - District heating
EK - Space heating
control
EL- Modbus
EM - Manual override
OEM
20
Description
EK6 - Max flow temperature
Flowtemperature will be limited to maximum 45 °C if underfloor
heating is selected in EK1
Flowtemperature will be limited to 90 °C if radiator heating is
selected in EK1
EK7 - Valve time (sec)
Time for 3-point control valve from fully closed to fully open
(depends on actuator and valve stem configuration). Please refer
to valve supplier manual for this information.
EK8 - Max return temperature
If max return temperature exceeds the temperature setpoint, then
the valve will close incrementally untill the return temperature
setpoint is archieved.
EK9 - Neutral Zone
Hysteresis for temperature control via PID
EK10 - Heating PI P
PI controller P-band
By increasing this value the controller will try to reach the setpoint
temperature faster (with a risk of overshooting the setpoint)
EK11 - Heating PI I (x10)
PI controller I-band
By increasing this value the controller will try to reduce
overshooting / offset of temperatures (with a risk of slowing the
controller down)
EK12 - Heating Reg time
PI controller regulation time
By increasing this value the controller will be slowed down as time
between recalculation of valve position will be increased
EL1 - Modbus adress
Modbus slave adress of unit
EL2 - Modbus baud rate
choose either 9600 or 19200 baud depending on the application
type
EL3 - Modbus Parity
choose odd or even depending on the application type
EL4 - Modbus Modify
choose off or on depending on the application type
Enter password for entering relay test program (only for
installers)
Enter password for entering OEM program (only for installers)
Factory setting and
(max. / min values)
EK6: 45°C
(20 - 65°C)
EK7: 150 sec
(1 - 255 sec)
EK8: 50°C
(25 - 70°C)
EK9: 1°C
(0 - 10°C)
EK10: 20
(0 - 255)
EK11: 50
(0 - 255)
EK12: 5 sec
(1 - 120 sec)
EL1: 20
(1 - 247)
EL2: 19200 baud
(9600 baud / 19200
baud)
EL3: Even
(None / Even / Odd)
EL4: On
(On/Off)