
1592025920 XEV22D GB r3.0 02.02.2011.doc XEV22D 4/4
The instrument is provided with an internal check verifying memory integrity. Alarm “EE” will flash when
a failure in the internal memory is detected. In such case call the service.
15. TECHNICAL DATA
Housing: self extinguishing ABS.
Case: 4 DIN modules 70x135mm with male and female connectors; depth 60mm.
Mounting: DIN RAIL mounted in an omega (3) din rail.
Protection: IP20.
Connections: pluggable screw terminal block 2.5 mm
2
wiring.
Power supply: 24Vac/dc ±10%.
Power absorption: depending on connected valve 20VA max.
Display: three digits with icons, red LEDs, height 14.2 mm.
Inputs: 1 temperature probe:
PT1000 probe: -50 to 110°C (-58 to 230°F).
NTC probe: -40 to 110°C (-40 to 230°F).
1 pressure transducer: 4 to 20mA or 0 to 5V.
Digital inputs: 1 free of voltage.
1 high voltage.
Outputs for valve: bipolar or unipolar valves.
Data storage: on the non-volatile memory (EEPROM).
Kind of action: 1B.
Pollution degree: normal.
Software Class: A.
Operating temperature: 0 to 55°C (32 to 131°F).
Storage temperature: -25 to 60°C (-13 to 140°F).
Relative humidity: 20 to 85% (no condensing).
Resolution: 0.1°C or 1°F.
Precision a 25°C (77°F): ±0.7°C ±1digit.
16. STANDARD VALUES
Label Description Range Default Level
FtY Kind of gas
R22; 134; 404; 407;
410; 507; Co2
404 Pr2
Peo Probe Error opening percentage 0 to 100 % 50 Pr2
Ped Probe Error delay before stopping regulation 0 to 239 s; on on Pr2
tEU Type of Stepper motor uP; bP bP Pr2
tEP Automatic Valve configuration 0 to 10 1 Pr2
HFS Kind of driving HAF; FUL FUL Pr2
LSt Minimum number of steps 0; USt (*10) See tEP Pr2
USt Maximum number of steps LSt to 800 (*10) See tEP Pr2
ESt Extra steps in closing phase 0 to 255 (*10) 0 Pr2
Sr Step rate 10 to 600 step/s See tEP Pr2
CPP Current per phase (only bipolar valves) 0 to 100 (*10mA) See tEP Pr2
CHd Holding current per phase (only bipolar valves) 0 to 100 (*10mA) See tEP Pr2
oPE Start opening Percentage 0 to 100 % 85 Pr2
SFd Start Function duration 0.0 to 42min 00s, res. 10s 1.3 Pr2
Sti Stop regulation interval 0.0 to 24h 00min, res. 10min 0 Pr2
Std Stop duration 0 to 60 min 0 Pr2
MnF Maximum opening percentage 0 to 100 % 100 Pr2
FoP Forced Opening time-out 0 to 100 %; nU nU Pr2
PI PARAMETERS (trained staff)
Pb Proportional band
[0.1 to 50.0°C]
[1 to 90°F]
[10.0°C]
[50°F]
Pr2
rS Band Offset
[-12.0 to 12.0°C]
[-21 to 21°F]
[0.0°C]
[0°F]
Pr2
inC Integration time 0 to 255 s 120 Pr2
PROBE PARAMETERS
tPP Type of pressure transducer 420; 5V; LAn 420 Pr2
LPP Enable pressure probe sending in LAN n; Y n Pr2
PA4
Probe value at 4mA or at 0V (related to PrM
parameter)
[-1.0 to P20 bar]
[-14 to P20 psi]
[-0.5 bar]
[-7 psi]
Pr2
P20
Probe value at 20mA or at 5V (related to PrM
parameter)
[ PA4 to 50.0 bar]
[PA4 to 725 psi]
[11.0 bar]
[159 psi]
Pr2
oPr Pressure probe calibration
[-12.0 to 12.0 bar]
[-174 to 174 psi]
[0.0 bar]
[0 psi]
Pr2
ttE type of temperature probe PT1000; ntC ntC Pr2
otE Temperature probe calibration
[-12.0 to 12.0°C]
[-21 to 21°F]
[0.0°C]
[0°F]
Pr2
DIGITAL INPUTS
i1P Free of voltage digital input polarity CL; oP CL Pr2
i1F Free of voltage digital input function CCL; rL CCL Pr2
d1d Digital input 1 (free of voltage) activation delay 0 to 255 min 0 Pr2
i2P Main voltage digital input polarity CL; oP CL Pr2
i2F Main voltage digital input function CCL, rL CCL Pr2
d2d Digital input 2 (Main voltage) activation delay 0 to 255 min 0 Pr2
ALARMS
dAo Alarm delay after restarting regulation 0.0 to 42min 00s, res. 10s 10.0 Pr2
tdA Type of alarm signalled by relay ALL; SH; PrE; Di ALL Pr2
LPL
Lower pressure limit for superheat regulation
(related to PrM parameter)
[PA4 to P20 bar]
[PA4 to P20 psi]
[-0.5 bar]
[-7 psi]
Pr2
MoP
Maximum operating pressure threshold (related
to PrM parameter)
[LoP to P20 bar]
[LoP to P20 psi]
[11.0 bar]
[159 psi]
Pr2
LoP
Minimum suction pressure limit (related to PrM
parameter)
[PA4 to MoP bar]
[PA4 to MoP psi]
[-0.5 bar]
[-7 psi]
Pr2
PHy Pressure alarm Hysteresis
[0.1 to 5.0 bar]
[1 to 72 psi]
[0.1 bar]
[1 psi]
Pr2
dML delta MoP-LoP 0 to 100% 30 Pr2
MSH Maximum superheat alarm
[LSH to 80.0°C]
[LSH to 176°F]
[80.0°C]
[144°F]
Pr1
LSH Lowest superheat alarm
[0.0 to MSH°C]
[0 to MSH°F]
[2.5°C]
[2°F]
Pr1
SHY Superheat hysteresis
[0.1 to 25.5°C]
[1 to 77°F]
[0.1°C]
[1°F]
Pr2
SHd Superheat alarm activation delay 0 to 255 s 120 Pr1
FrC Fast-Recovery Constant 0 to 100 s 50 Pr2
DISPLAY
Lod Local display SH; PEr; P1; P2 SH Pr1
CF Temperature measurement units °C; °F
[°C]
[°F]
Pr2
PMu Pressure measurement unit bAr; PSi bAr Pr2
rES Resolution (only °C) dE; in dE Pr2
PrM Type of pressure (Absolute / relative) rEL; AbS rEL Pr2
CLP Cooling call percentage Read only - - - Pr2
tP1 Temperature probe value Read only - -- Pr1
PPr Pressure probe value Read only - - - Pr1
tP2 Temperature converted from pressure probe Read only - - - Pr1
oPP Acutal Opening percentage Read only - - - Pr1
d1S Free of voltage digital input state Read only - - - Pr1
d2S Main voltage digital input state Read only - - - Pr1
Adr Serial address 1 to 247 1 Pr2
Mod Modbus type Std; AdU Std Pr2
Ptb Parameters map - - - - - - Pr2
rEL Release software - - - - - - Pr2
Pr2 Second level menu - - - - - - Pr1
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