Carel EVD4, User Manual, Page: 15 / 48

15
ENGL
ISH
EVD
4
+030220227 - rel. 2.1 - 12.06.2008
Key:
„
= Main parameters required to start operation;
†
= Secondary parameters required for optimum operation;
— = Advanced parameters.
MANUFACTURER group
SYSTEM SET
Parameter name Description
EVD type
model of EVD used, from pCO
„
EVD probes type
number indicating the combination of sensors used to calculate the superheat
„
Valve type
number that defi nes the type of electronic valve used
„
Battery presence
enable valve not closed error, to be entered if the battery is present
„
Refrigerant
number indicating the type of refrigerant used
„
Custom valve confi guration
Minimum steps
minimum control steps —
Maximum steps
maximum control steps
—
Closing steps
steps completed in total closing —
Opening extra steps
enable extra steps in opening
—
Closing extra steps
enable extra steps in closing —
Phase current
peak current per phase
—
Still current
current with the motor off
—
Steprate
motor speed —
Duty cycle
motor duty cycle
—
EEV stand-by steps
number of valve standby steps, see standby steps —
S1 probe limits Min
‘zero’ scale for pressure sensor on input S1
„
S1 probe limits Max
end scale for pressure sensor on input S1
„
S2-Pt1000 calib.
calibration index for PT1000 sensor —
Alarms delay
Alarms delay Low SH
low superheat alarm delay
—
Alarms delay High SH
high superheat temperature alarm delay in CH mode —
Alarms delay LOP
low evaporation pressure (LOP) alarm delay
—
Alarms delay MOP
high evaporation pressure (MOP) alarm delay —
Alarms delay probe error
probe error alarm delay
—
Stand alone enable StandAlone
AUTOSETUP
Parameter name Description
Re-install AUTOSETUP values
confi rm enable restore parameter default values
„
Circuit/EEV ratio
percentage of the maximum capacity managed by the valve in the circuit where it is installed
„
Compressor or unit
macroblock parameter that defi nes the integral time
„
Capacity control
macroblock parameter that defi nes the proportional factor
„
Evaporator Type Cool
macroblock parameter that defi nes the integral time
„
Heat
macroblock parameter that defi nes the integral time
„
Cool Mode temperature at minimum operating pressure (MOP) in CH mode
†
Heat Mode temperature at minimum operating pressure (LOP) in HP mode
†
Defr. Mode temperature at minimum operating pressure (LOP) in DF mode
†
MOP
Cool Mode
temperature at maximum operating pressure (MOP) in CH mode
†
Standby steps temperature at maximum operating pressure (MOP) in HP mode
†
Defr. Mode temperature at maximum operating pressure (MOP) in DF mode
†
High SH alarm threshold maximum superheat temperature
ADVANCED SETTINGS – FINE TUNING
Parameter name Description
CH-Circuit/EEV Ratio
percentage of the maximum capacity managed by the valve in the circuit where it is installed, in CH mode —
CH-Superheat set
superheat set point in CH mode
—
cool mode adjust CH-Proportional gain
PID proportional factor in CH mode —
CH-Integral time
integral time for superheat control in CH mode
—
CH-Low Superheat
low superheat value in CH mode
—
heat mode adjust
HP-Circuit/EEV Ratio
percentage of the maximum capacity managed by the valve in the circuit where it is installed, in HP mode —
HP-Superheat set
superheat set point in HP mode
—
HP-Proportional gain
PID proportional factor in HP mode —
HP-Integral time
integral time for superheat control in HP mode
—
HP-Low Superheat
low superheat value in HP mode —
defr. mode adjust
DF-Circuit/EEV Ratio
percentage of the maximum capacity managed by the valve in the circuit where it is installed, in DF mode
—
DF-Superheat set
superheat set point in DF mode —
DF-Proportional gain
PID proportional factor in DF mode
—
DF-Integral time
integral time for superheat control in DF mode —
DF-Low Superheat
low superheat value in DF mode
—
common list adjust
SHeat dead zone
dead zone for PID control —
Derivative time
PID derivative time —
Low SHeat int. time
integral time for low superheat control
—
LOP integral time
integral time for low evaporation pressure (LOP) control —
MOP integral time
integral time for high evaporation pressure (MOP) control
—
MOP startup delay
MOP delay time —
Hi TCond. protection
maximum condensing temperature
—
Hi TCond. int. time
integral time for high condensing pressure control (HiTcond) —
Dynamic prop. gain
attenuation coeffi cient with change in capacity
—
Blocked valve check
time after which, in certain conditions, the valve is considered as being blocked —