1592023130 XM670K_XM679K GB r4.2 26.06.2017.docx
XM670K - XM679K
8/10
Rel
Release software:
(read only) Software version of the microprocessor.
Ptb
Parameter table:
(read only) it shows the original code of the Dixell parameter map.
Pr2
Access to the protected parameter list
(read only).
17.
DIGITAL INPUTS
The XM600 series can support up to 3 free of voltage contact configurable digital inputs (depending on
the models). They are configurable via i#F parameter
17.1
GENERIC ALARM (EAL)
As soon as the digital input 1, 2, or 3
is activated the unit will wait for “
d1d
” or “
d2d
”
or “
d3d
”
time delay
before signalling the “
EAL
” alarm message. The outputs status don’t change. The alarm stops just after
the digital input is de-activated.
17.2
SERIOUS ALARM MODE (BAL)
When the digital input is activated, the unit will wait for
“
d1d
” or “
d2d
”
or “
d3d
”
delay before signalling the
“
BAL
” alarm message. The relay outputs are switched OFF. The alarm will stop as soon as the digital
input is de-activated.
17.3
PRESSURE SWITCH (PAL)
If during the interval time set by
“
d1d
” or “
d2d
”
or “
d3d
”
parameter, the pressure switch has reached the number
of activation of the “
nPS
” parameter, the “
CA
” pressure alarm message will be displayed. The compressor and
the regulation are stopped. When the digital input is ON the compressor is always OFF.
If the nPS activation in
the d#d time is reached, switch off and on the instrument to restart normal regulation.
17.4
DOOR SWITCH INPUT (dor)
It signals the door status and the corresponding relay
output status through the “
odc
” parameter:
no
= normal
(any change);
Fan
= Fan OFF;
CPr
= Compressor OFF;
F_C
= Compressor and fan OFF. Since the door is
opened, after the delay time set through parameter “
d#d
”, the door alarm is enabled, the display shows
the
message “
dA
” and
the regulation restarts after rrd time.
The alarm stops as soon as the external digital input
is disabled again. With the door open, the high and low temperature alarms are disabled.
17.5
START DEFROST (DEF)
It executes a defrost if there are the right conditions. After the defrost is finished, the normal regulation
will restart only if the digital input is disabled otherwise the instrument will wait until the “
Mdf
” safety time
is expired.
17.6
RELAY AUX ACTUATION (AUS)
This function allows to turn ON and OFF the auxiliary relay by using the digital input as external switch.
17.7
RELAY LIGHT ACTUATION (LIG)
This function allows to turn ON and OFF the light relay by using the digital input as external switch.
17.8
REMOTE ON/OFF (ONF)
This function allows to switch ON and OFF the instrument.
17.9
KIND OF ACTION (HTR)
This function allows to change the kind of regulation from cooling to heating and vice versa.
17.10
FHU
–
NOT USED
This function allows to change the kind of regulation from cooling to heating and viceversa.
17.11
ENERGY SAVING INPUT (ES)
The Energy Saving function allows to change the set point value as the result of the SET+ HES
(parameter) sum. This function is enabled until the digital input is activated.
17.12
CONFIGURABLE INPUT - HOLIDAY FUNCTION (HDY)
In Holiday function Energy saving and defrost cycles follow holiday times.
(Sd1…Sd
6)
17.13
DIGITAL INPUTS POLARITY
The digital inputs polarity depends on “
I#P
”
parameters:
CL
: the digital input is activated by closing the
contact;
OP
: the digital input is activated by opening the contact.
18.
USE OF THE PROGRAMMING
“
HOT KEY
“
The XM units can UPLOAD or DOWNLOAD the parameter list from its own E2 internal memory to the
“Hot Key”
and vice-versa through a TTL connector.
18.1
DOWNLOAD (FROM THE “HOT KEY” TO THE INST
RUMENT)
1.
Turn OFF the instrument by means of the ON/OFF key ,insert the
“Hot Key”
and then turn the unit
ON.
2.
Automatically the parameter list of the
“Hot Key”
is downloaded into the controller memory, the
“
doL
” message is blinking. After 10 seconds the instrument
will restart working with the new
parameters. At the end of the data transfer phase the instrument displays the following messages:
“
end
“ for right programming. The instrument starts regularly with the new programming.
“
err
” for
failed programming. In this case turn the unit off and then on if you want to restart the download
again or remove the “
Hot key
” to abort the operation.
18.2
UPLOAD (FROM THE INS
TRUMENT TO THE “HOT KEY”)
1.
When the XM unit is ON, insert the “
Hot key
” and push
“UP”
key.
2.
The UPLOAD begins;
the “
uPL
” message is blinking.
3.
Remove the
“Hot Key”.
At the end of the data transfer phase the instrument displays the following messages:
“
end
“ for right programming.
“
err
” for failed programming. In this case push “SET” key if you want to restart th
e programming
again or remove the not programmed “
Hot key
”.
19.
TECHNICAL DATA
CX660 keyboard
Housing:
self extinguishing ABS.
Case:
CX
660
facia 35x77 mm; depth 18mm
Mounting:
panel mounting in a 29x71 mm panel cut-out
Protection:
IP20;
Frontal protection:
IP65
Power supply:
from
XM600K
power module
Display
: 3 digits, red LED, 14,2 mm high;
Optional output:
buzzer
Power modules
Case: 8 DIN
Connections:
Screw terminal block
1,6 mm
2
heat-resistant wiring and 5.0mm Faston
Power supply:
depending on the model 12Vac
–
24Vac - 110Vac
10% - 230Vac
10% or 90÷230Vac
with switching power supply.
Power absorption:
9VA max.
Inputs
: up to 6 NTC/PTC/Pt1000 probes
Digital inputs
: 3 free of voltage
Relay outputs:
Total current on loads MAX. 16A
Solenoid Valve:
relay SPST 5(3) A, 250Vac
defrost:
relay SPST 16 A, 250Vac
fan:
relay SPST 8 A, 250Vac
light:
relay SPST 16 A, 250Vac
alarm:
SPDT relay 8 A, 250Vac
Aux:
SPST relay 8 A, 250Vac
Valve output:
a.c. output up to 30W
(Only XM679K)
Optional output (AnOUT) DEPENDING ON THE MODELS:
PWM / Open Collector outputs:
PWM or 12Vdc max 40mA
Analog output:
4÷20mA
or 0÷10V
Serial output:
RS485 with ModBUS - RTU and LAN
Data storing
: on the non-volatile memory (EEPROM).
Kind of action:
1B.
Pollution degree:
2
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).
PTC probe:
-50÷150°C (-67 ÷ 302°F)
Pt1000 probe:
-100 ÷ 100°C (-148 ÷ 212°F)
Resolution:
0,1 °C or 1°C or 1 °F (selectable).
Accuracy (ambient temp. 25°C)
: ±0,5 °C ±1 digit
20.
DEFAULT SETTING VALUES
Lab
Val
Menù
Description
Range
SEt
2.0
- - -
Set point
LS - US
rtC
-
Pr1
CLOCK AND DEFROST menu
access
-
EEU
-
Pr1
Electro valve menu access
-
Regulation
Hy
2.0
Pr1
Differential
[0.1°C ÷ 25.5°C] [1°F ÷ 45°F]
Int
150
Pr1
Integral time for room temperature
regulation
0 ÷ 255 s
CrE
n
Pr1
Continuous regulation activation
n(0)
– Y(1)
LS
-30
Pr2
Minimum set point
[-55.0°C ÷ SET] [-67°F ÷ SET]
US
20
Pr2
Maximum set point
[SET ÷ 150.0°C] [SET ÷ 302°F]
odS
0
Pr1
Outputs activation delay at start
up
0 ÷ 255 (min.)
AC
0
Pr1
Anti-short cycle delay
0 ÷ 60 (min.)
CCt
0.0
Pr2
Continous cycle duration
0 ÷ 24.0(144) (hour.10min)
CCS
2.0
Pr2
Continuous cycle set point
[-55.0°C ÷ 150,0°C] [-67°F ÷
302°F]
Con
15
Pr2
Compressor ON time with faulty
probe
0 ÷ 255 (min.)
CoF
30
Pr2
Compressor OFF time with faulty
probe
0 ÷ 255 (min.)
CF
°C
Pr2
Measurement unit: Celsius ,
Fahrenheit
°C(0) - °F(1)
PrU
rE
Pr2
Pressure Mode
rE(0) - Ab(1)
PMU
bAr
Pr2
Pressure measurement unit
bAr(0)
– PSI(1) - MPA(2)
PMd
PrE
Pr2
Pressure displaying mode:
temperature or pressure
tEM(0) - PrE(1)
rES
dE
Pr2
Resolution (only °C) : decimal,
integer
dE(0) - in(1)
Lod
P1
Pr2
Local display: default display
nP(0) - P1(1) - P2(2) - P3(3) -
P4(4) - P5(5) - P6(6)
– tEr(7) -
dEF(8)
rEd
P1
Pr2
Remote display: default display
nP(0) - P1(1) - P2(2) - P3(3) -
P4(4) - P5(5) - P6(6)
– tEr(7) -
dEF(8)
dLy
0
Pr1
Display delay
0 ÷ 24.0(144) (Min.10s)
rPA
P1
Pr1
Regulation probe A
nP(0) - P1(1) - P2(2) - P3(3) -
P4(4) - P5(5)
rPb
nP
Pr1
Regulation probe B
nP(0) - P1(1) - P2(2) - P3(3) -
P4(4) - P5(5)
rPE
100
Pr1
Virtual probe percentage (room
temperature)
0 ÷ 100 (100=rPA, 0=rPb)
Electronic Expansion Valve
Fty
404
Pr1
Kind of gas
R22-134-290 - 404- 47A-47C- 47F
410-448-449-450- 507 -513-CO2
Atu
YES
Pr2
Minimum
STABLE
superheat
search
No; yES
AMS
YES
Pr2
Self self adaptive SH regulation
enabling
No; yES
SSH
8.0
Pr1
Superheat set point
[0.1°C ÷ 25.5°C] [1°F ÷ 45°F]
CyP
6
Pr1
Cycle Period
1 ÷ 15 s
Pb
5.0
Pr1
Proportional band for superheat
regulator
[0.1°C ÷ 60.0 °C] [1°F ÷ 108 °F]
rS
0.0
Pr1
Band Offset for superheat
regulator
[-12.0°C ÷ 12.0°C] [-12°C ÷
12°C] [-21°F ÷ 21°F]
inC
120
Pr1
Integration time for superheat
regulator
0 ÷ 255 s
PEO
50
Pr1
Probe error opening percentage
0 ÷ 100
PEd
On
Pr1
Probe error delay before stopping
regulation
0 ÷ 239 s - On(240)
OPE
85
Pr1
Start opening percentage
0 ÷ 100
