dIXEL
Operating instructions
1592002750
1592002750 XH240K GB r1.0 15.06.2004 *
XH240K
4/4
12.
ALARM SIGNALLING
Message Cause
Outputs
“P1”
Thermostat probe failure
Compressor and heating outputs off
“P3”
Humidity probe failure
Humidity regulation off
“HA”
High temperature alarm
Outputs unchanged
“LA”
Low temperature alarm
Outputs unchanged
“HHA” High humidity alarm
Outputs unchanged
“HLA” Low humidity alarm
Outputs unchanged
“dA”
Door switch alarm
Outputs depending on the odC parameter
The alarm message is displayed until the alarm condition recoveries.
All the alarm messages are showed alternating with the room temperature except for the “P1”
which is flashing. To reset the “EE” alarm and restart the normal functioning press any key, the
“
rSt
” message is displayed for about 3s.
12.1
SILENCING BUZZER
Once the alarm signal is detected the buzzer, if present, can be silenced by pressing any key.
12.2
ALARM RECOVERY
Probe alarms
: “
P1
” (probe1 faulty), “
P3
” ; they automatically stop 10s after the probe restarts
normal operation. Check connections before replacing the probe.
Temperature alarms
“
HA
” and “
LA
” automatically stop as soon as the thermostat temperature
returns to normal values or when the defrost starts.
Humidity alarms
“
HHA
” and “
LHA
” automatically stop as soon as the humidity returns to
normal values.
Door switch alarm
“
dA
” stop as soon as the door is closed.
13.
TECHNICAL DATA
VH620 keyboard
Housing:
self extinguishing ABS;
Case:
facia 100x64 mm; depth 23mm
Mounting:
panel mounting in a 56x72 mm panel cut-out with two screws.
∅
3 x 2mm.
Distance between the holes 40mm
Protection:
IP20.
Frontal protection:
IP65 with frontal gasket mod RG-V. (optional)
Connections:
Screw terminal block
≤
2,5 mm
2
heat-resistant wiring
Power supply:
from
XH240K; Display
: double d icons.
Optional output:
buzzer
XH240K board
Housing:
open board;
Case:
77x102mm
Mounting:
panel with two screws.
∅
3x2mm.
Connections:
Screw terminal block
≤
2,5 mm
2
heat-resistant wiring and 6,3mm Faston
Power supply:
230Vac
±
10%;
Power absorption:
7VA max.
Inputs
: 1 NTC probe + 4÷20mA probe
Digital input
: 1 free voltage
Relay outputs:
compressor:
relay SPST 20(8) A, 250Vac
heather:
relay SPST 16(6) A, 250Vac
fans:
relay SPST 8(3) A, 250Vac
humidifier:
relay SPST 8(3) A, 250Vac
Data storing
: on the non-volatile memory (EEPROM).
Kind of action:
1B.;
Pollution grade:
normal;
Software class:
A.
Operating temperature:
0÷60 °C.;
Storage temperature:
-25÷60 °C.
Relative humidity:
20
÷
85% (no condensing)
Measuring and regulation range:
NTC probe:
-40÷110°C (-58÷230°F)
Resolution:
0,1 °C or 1°C or 1 °F (selectable).
Accuracy (ambient temp. 25°C)
: ±0,5 °C ±1 digit
14.
WIRING CONNECTIONS
in
16A
250Vac
Thermostat
Probe
Humidity
Probe
20A
250Vac
Supply
230Vac
Comp
Fan
Heather
8A
250Vac
Hum
8A
250Vac
+
gnd
12V
+
Digital
Input
15.
DEFAULT SETTING VALUES
Label Value Menu
Description
Range
Set T
5.0
- - - Temperature Set Point
LS ÷ uS ( nu = temperature
regulation disabled )
Set H
50.0
- - - Humidity Set Point
LSH ÷ uSH ( nu = humidity
regulation disabled)
dbt
2.0
Pr1
Half dead band width for temperature
0.1°C o 1°F ÷ 25°C o 77°F
dbH
5.0
Pr1
Half dead band width for humidity
0.5 ÷ 50
LS
-40.0
Pr2
Minimum temperature set point limit
-50.0°C o –58°F ÷ Set T
uS
110
Pr2
Maximum temperature set point limit
Set T ÷ 110°C o 230°F
odS
1
Pr2
Outputs activation delay at start up
0 ÷ 250 min
Ac
1
Pr1
Anti-short cycle delay
0 ÷ 30 min
LSH
0.0
Pr2
Minimum humidity set point limit
Lci ÷ Set H
uSH
100
Pr2
Maximum humidity set point limit
Set H ÷ uci
cF
°C
Pr2
Measurement unit
°C ÷°F
rES
dE
Pr2
Resolution (for °C):
in = integer / dE = decimal
rEH
Hd
Pr2
Resolution for RH%:
in = integer / Hd = half digit
idF
8
Pr1
Interval between defrosts
1 ÷ 120 h
MdF
20
Pr1
Duration of defrost
0 ÷ 250 min
dFd
it
Pr2
Display during defrost
rt / it / SEt / dEF / dEG
dAd
30
Pr2
Defrost display time out
0 ÷ 250 min
Hud
no
Pr2
Humidity control during defrost
no; yES
Fnc
c-n
Pr2
Fan operating mode
c-n / c-Y / o-n / o-Y
ALc
Ab
Pr2
Temperature alarm configuration
rE = relative / Ab = absolute
ALL
-40.0
Pr1
Low temperature alarm setting
0°C ÷ 50.0°C / -50.0°C ÷ ALu
ALu
110
Pr1
High temperature alarm setting
0°C ÷ 50.0°C / ALL ÷ 110°C
ALH
1.0
Pr2
Temperature alarm recovery differential
0.1°C o 1°F ÷ 25°C o 77°F
ALd
15
Pr2
Temperature alarm delay
0 ÷ 250 min
dAo
1.3
Pr2
Delay of temperature alarm at start-up
0.0 ÷ 23.5 h
EdA
20
Pr2
Alarm delay at the end of defrost
0 ÷ 250 min
dot
20
Pr2
Delay of temp. alarm after closing the
door
0 ÷ 250 min
AHc
Ab
Pr2
Humidity alarm configuration
rE = relative / Ab = absolute
AHL
0.0
Pr1
Low humidity alarm setting
0 ÷ 50 / Lci ÷ AHu
AHu
100
Pr1
High humidity alarm setting
0 ÷ 50 / AHL ÷ uci
AHH
2.0
Pr2
Humidity alarm recovery differential
0.5 ÷ 25
AHd
15
Pr2
Humidity alarm delay
0 ÷ 250 min
dHo
1.3
Pr2
Delay of humidity alarm at start-up
0.0 ÷ 23.5 h
doH
20
Pr2
Alarm delay at the end of defrost
0 ÷ 250 min
doA
20
Pr2
Open door alarm delay
0 ÷ 250 min ( 250 = nu )
nPS
0
Pr2 Pressure switch number
0÷15
ot
0.0
Pr1 Thermostat probe calibration
-12.0 ÷ 12.0
o3
0.0
Pr1 Humidity probe calibration
-10 ÷ 10
P3P
yES
Pr2 Humidity probe presence
yES; no
Lci
0
Pr2 Readout with 4 mA
-999 ÷ 999
uci
100
Pr2 Readout with 20 mA
-999 ÷ 999
i1P
oP
Pr2 Digital input polarity
cL =open / oP = close
i1F
dor
Pr2 Digital input configuration
dor / PAL / EAL / bAL / Ht
odc
oFF
Pr2 Outputs status when open door
on / Fan / oFF
rrd
YES
Pr2 Outputs restarting after doA alarm
no = no / YES = yes
did
0
Pr2 Digital input alarm delay
0÷255 min.
Adt
1
Pr2
Serial address for temperature
0÷247
AdH
1
Pr2
Serial address for humidity
0÷247
Ptb
1
Pr2 Parameter table
- - -
rEL
1.0
Pr2 Software release
- - -
Pr2
321
Pr1 Access to the protected parameter list
- - -
Dixell S.p.A. Via dell’Industria, 27
32010 Z.I Pieve d’Alpago (BL) ITALY
tel. +39 - 0437 - 98 33 - fax +39 - 0437 - 98 93 13
E-mail:[email protected] - http://www.dixell.com
