Dixell - Electronic Controls Handbook
Dixell
Electronic Controls
Handbook
September 2000
Programming Flow Charts & Parameter Lists for:
XR100 Series - Refrigeration Controller
XT Series - Heating & Cooling Controllers
XC Series - Step Controllers
Prime Series - Refrigeration Controllers
A
Specialists in electronic refrigeration control
www.thermofrostcryo.co.uk
London
Tel. 020 8655 7600
Fax. 020 8761 8081
Birmingham
Tel. 0121 666 4700
Fax. 0121 622 7268
HOW TO USE THIS GUIDE
THE PROGRAMMING FLOW CHART ON
PAGE 3 SHOULD BE USED FOR ALL
MODELS EXCEPT THE PRIME SERIES.
USE THE FLOW CHART ON PAGE 41 FOR
THE PRIME SERIES.
READ IT IN CONJUNCTION WITH THE
PARAMETER LIST FOR YOUR PARTICULAR
MODEL
Further information can also be found
on pages 5 - 7 & 33 - 35
-2-
PROGRAMMING FLOW CHART
ALL MODELS EXCEPT PRIME SERIES
(For Prime Series, see chart inside rear cover)
Read Notes
Power On
IMPORTANT NOTES:
Not every Menu Function Label or Parameter will be present in every model
The display briefly shows the version
number of the software in use then shows
current temperature
Enter the Main Function Menu by
buttons together
pressing the SET &
for 3 seconds. The display will then show
the first function menu label
( See Main Function Menu Labels )
Using the
&
buttons,
scroll through Function Menu labels until
“Pr2” is shown. Now press the “SET”
button. The display will flash “PAS” and
then the left hand digit will flash. Input
&
security code ( 3-2-1) using
and “SET” buttons as follows :3-SET, 2-SET, 1-SET
(XC step controller’s code is 3-2-1-0)
( See notes on other Function Menu labels
and their uses. )
If no button is pressed for 15 seconds, the controller will revert to normal
display. Any alteration that have been made will be stored.
Main Function Menu Labels
“dFt”
“Pt2”
“Pr1”
“Pr2”
“rTC”
“dIG”
Displays how long until next defrost
Displays the evaporator probe temperature
Contains any User accessible parameters ( no security code required )
Contains all parameters at engineers level ( security code protected )
Contains real time clock parameters at “User Level”
Configures digital input to work with a normally open or normally
closed circuit
“LOC” Locks the buttons so only temperature & Set Point can be viewed
“tSt” Starts the controller’s self test routine
“Alr” Displays any alarm messages
“Out” Exits Main Function Menu
“rAL” Resets & clears alarms in memory
“rESC” Resets run time meter for each stage ( security code 3-2-1-0 required)
Notes: Pressing “SET” while any of these labels are displayed will activate the
function or enter the sub menu.
To unlock buttons press the
&
buttons together for 3 seconds. The
display will flash “Pon” for a few seconds to confirm unlocking.
You are now in programming mode and
the first parameter’s label will be
displayed, which is normally “HY”
Press “SET” button to display setting.
Alarm Codes
DISPLAY FLASHING
EE
P1
Is the setting correct ?
Yes
000
CCC
P2
No
rtC
Press “SET” to
view next
parameter label.
Press “SET”
again to view it’s
setting
Have all the required parameters
now been set correctly ?
No
HA
LA
dEA
Use
&
to
alter setting. Press
“SET” to store new
setting and move on
to next parameter’s
label. Press “SET” to
display it’s setting.
Yes
FF
EA
CA
OFF
dA
PROBLEM
Data or memory corruption
Fault with thermostat probe or probe
wiring
Probe open circuit
Probe closed circuit
Fault with evaporator probe or probe
wiring
Real time clock settings have been
lost
High temperature alarm
Low temperature alarm
Defrost has terminated on time
instead of temperature
Power interruption during fast chill /
fast freeze cycle
External alarm
Klixon external alarm
Serious external alarm
Door open alarm
Press any button to silence alarm
Wait 15 seconds
to “time out”.
Display will
revert to normal
temperature
display
-3-
Now set the SET POINT by pressing
“SET” button for 3 seconds until the
LED’s at the top of the display start
&
buttons
flashing. Use the
to alter setting. Press “SET” to store
the new setting.
Note: To insure all changes are
updated without delay, turn the
power off, then on again
Dixell
INDEX
Subject
Page
Programming Flow Chart (All models except Prime Series)
Programming Flow Chart (Prime Series Models)
Introduction
General Information
Basic Programming
3
40
5
6
7
Parameter Lists:
•
XR100 & 500 Series Refrigeration Controllers
XR110C
8
XR120C - XR130C – XR130D
9
XR140C - XR150C
10
XR160C – XR160D – XR170C
XR170D - XR162C - XR172C
12
XR530C – XR530D
14
XR570C – XR570D - XR572C
16
•
XT Series Heating & Cooling Controllers
XT110C - XT111C
19
XT120C - XT121C
20
XT130C - XT131C
21
•
XC Series Step Controllers
XC440C - XC460C – XC460D
22
•
Universal-R overview
24
•
Prime Series Refrigeration Controllers
XR10C
26
XR20C
27
XR30C
29
XR40C
31
XR60C
33
Additional Information
Electrical filters & suppressors
35
-4-
Key Feature Check List
36
-5-
Dixell
Electronic Controllers
This booklet has been produced to assist you with the setting up and programming of Dixell
Controllers. It is not designed to totally replace the manufacturer’s manual, but rather to
compliment it. Please refer to the manufacturer’s manual when in any doubt.
The complete range of Dixell Controllers is extremely large, so only the popular models are
covered here. However, the method of programming any Dixell controller is very similar across
all the range.
Model numbers ending with “C” are 32 x 74mm panel mount versions.
Model numbers ending with “D” are DIN Rail mount versions.
XR = Refrigeration
Models beginning with “XR” are multi-function refrigeration controllers, most have defrost
interval timers, but some have Real Time Clocks for defrost. Dixell XR100 & 500 Series always
use PTC probes, Dixell Prime Series can use either PTC or NTC (selectable by parameter)
XT = Temperature
Models beginning with “XT” are for heating or cooling applications and can be programmed for
either function. XT120C & XT121C are two stage, but can be programmed to operate as Dead
Band controllers. XT130 & XT131C are Dead Band only controllers. XT models can accept a
range of probes but the type must be specified at time of order. They are most commonly, PTC,
Thermocouples K, J, S, Pt100, Ni100. Other input types are 0 to 1v, 0 to 10v and 4 to 20mA.
XC = Step Control
Models beginning with “XC” are step controllers. They can be used to control multiple stages,
compressors, condenser fans, heaters or pumps. They can work with a 4 to 20 mA input from a
pressure transducer or an input from a PTC temperature probe. This input type must be specified
at time of order.
-6-
General Information
Safety
Ensure that the controllers are installed in such a way so as to comply with all relevant regulations and with
the manufacturer’s instructions. Consult manufacturer’s manual before carrying out any installation or
maintenance procedure. Caution: Electrical shock can kill. Good Practice should at all times be observed.
Sensor interference and extension of probe cables
It is important to avoid running probe cables close to power cables or other electrical equipment and cables
that carry or switch heavy loads. This is even more important when extending probe cables. When
extending probe cables use cable Part No.s CON490 (100 metre roll ) & CON491 ( 25 metre roll ) If
extending beyond the normal maximum of 50 metres, please consult our technical dept.
Sensor resistances at degrees C
-30c
-20c
-10c
0c
+10c
+20c
PTC
Ohms
617
677
740
807
877
951
NTC
Ohms x 1000
115
70
42
27
18
12
Power supply interruption
Dixell controllers store parameter settings in Non Volatile memory, so they will maintain those settings
indefinitely even when disconnected from the power supply.
Models with Real Time Clocks (RTC) will maintain the correct day / time settings for approximately 7
hours (display will be off). If RTC setting is lost, once the power is restored, the controller will revert to it’s
defrost interval timer (see parameter IdF) and the display will alarm “rtC” to warn that the correct
day / time setting has been lost. Re-enter the correct RTC settings to restore Real Time Clock defrosts. The
start time for each defrost is stored in non volatile memory, so these will not have been lost.
Output relays
Always refer to the manufacturer’s manual and ensure that the currents being switched by the controller’s
output relays do not exceed the rating of that relay. If necessary fit an auxiliary relay or contactor of an
appropriate rating.
Output interference
If the control is connected to an inductive coil (e.g. solenoid valves, etc. ) it is possible to pick up and
transmit interference back to the control thus causing errors. If this could be a problem, fit an induction
noise filter model FT-IL ( Part No DIXL930 ). See page 33 for further details.
Electrical noise and Power spikes
If electrical noise is present, fit a line filter FT-PW ( Part No. DIXL932 ). If power spikes are likely to
occur, fit a Varsities Part no. CON210. See page 33 for further details.
Water / Moisture, Ventilation and Vibration
Ensure the controller is protected from excessive moisture and humidity. Air must be allowed to circulate
through the cooling vents at the rear of the controller’s housing. Panel mounted controllers have a frontal
protection rating of IP65. If there is any risk of water getting behind the front mounting then this must be
prevented by the use of a suitable gasket ( PELE 206). Do not fit a controller in a place where it will be
subjected to excessive vibration.
-7-
BASIC PROGRAMMING
To program your Dixell controller, fold out the Programming Flow Chart inside the front or rear cover.
Then turn to the parameter list for your particular model, which has all the information you need on the
various parameters, their functions and adjustment ranges.
Firstly though, please take a few moments to read the following section.
The Display
The Buttons
The controller is fitted with a display, which normally shows the current
temperature. There are 3 LED’s with a decimal point so the right hand
digit usually represents 0.1 degree, although on some models you can
switch the decimal point on or off
On most panel mount 32 x 74mm models, there are two double buttons,
each having 2 actions. To use them you must press either the left or right
hand side of the button as appropriate.
Up
To Display the Set Point
To alter the
Set Point
Programming
Down
Manual Defrost
SET
Set
Press and release the SET button and the Set Point will be displayed for
5 seconds.
Press and hold the SET button for at least 3 seconds and Set Point
change mode is entered, the 2 small LED’s will start flashing indicating
you are now in programming mode.
and
buttons to alter the Set Point .
Use the
The new value can then be stored either by pressing the SET button or by
waiting 15 seconds until the exit time out has expired.
• To enter the programming mode, you must press and hold the
SET &
buttons together until the display changes.
•
All models except Prime Series:
When you do this, you will have entered the Main Function Menu. In this
menu you will find Pr1, which contains any parameters that can be
accessed without a security code. You will also find Pr2, which contains
all parameters but requires a security code to gain access.
•
Prime Series
Prime Series models are similar, but instead of entering a Main Function
Menu, you enter directly into a menu of “Visible Parameters”. There is
however another menu of “Hidden Parameters” and access to these needs
a further operation but not a security code.
For more details, see the Fold Out Programming Flow Charts inside
the front and rear covers. Use them in conjunction with the
parameter list for a particular model
Note: To allow you to decide how much (if any) access you wish the end
user to have, you can transfer any parameter or combination of
parameters between the two access levels. See manufacturer’s manual for
details or call us.
-8-
Parameters – XR110C On / Off controller
Use fold out programming flow chart inside front cover
Parameter &
Label
SP Set Point
HY
Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
AC Anti
Short Cycle
ALC Alarm
Configuration
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm
Delay
dAO Alarm
Delay at Start
Up
Ods Delay of
Outputs on
Start Up
Ot
Thermostat
Probe
Calibration
CF Unit of
Measurement
CH Cooling
or Heating
mode
Con Probe
Fault “ON”
Time
COF Probe
Fault “OFF”
Time
Description
Range
Sets the temperature at which the compressor stops
Sets the number of degrees above set point at which the
compressor is re-started (Heating - If parameter
CH = 1, differential is beneath Set Point – see below)
Sets the lowest temperature to which the customer can
adjust the Set Point
Sets the highest temperature to which the customer can
adjust the Set Point
Sets the minimum time period between the stopping of
the compressor and it’s next possible restart
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set
Point is altered the alarm levels will follow it
Sets the high temperature alarm level. If ALC=0 it
sets how many degrees above Set Point. If ALC=1 it
sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets
how many degrees below Set Point. If ALC=1 it sets a
fixed alarm temperature.
Sets the time delay between a temperature alarm
condition being sensed and the alarm being signaled
during normal operation.
Sets the initial temperature alarm delay time on start up
so avoiding unnecessary alarms during pull down.
LS ÷ US
0∃2 ÷ 12∃0
c
Sets the time delay between the power to the controller
being turned on and any output relay starting to
operate. This can be used to prevent short cycling of
the compressor following a momentary power failure.
It can also be used to stagger the re-start of multiple
units following a power failure, to prevent everything
trying to start at once and blowing a fuse.
Probe offset adjustment.
Sets the display to read out in Celsius or Fahrenheit
Sets the controller for heating or cooling applications.
Cooling – Differential is above the Set Point
Heating – Differential is below the Set Point
If a probe fault is detected the display will flash P1 and
the controller will automatically cycle the compressor
on and off. This parameter sets the “ON” time period
If a probe fault is detected the display will flash P1 and
the controller will automatically cycle the compressor
on and off. This parameter sets the “OFF” time period
-9-
Pr1
Pr2
Pr1
Pr1
Factory
Default
5c
2c
Pr2
- 10 c
Pr2
20 c
Pr2
1 min.
0=Relative
1=Absolute
2=Relative
3=Absolute
Set Point ÷
99 c
Pr2
0
Pr2
5c
-57c ÷ Set
Point
Pr2
5c
0 ÷ 120
mins.
Pr2
15 mins.
0 ÷ 720
mins.
Pr2
60 mins.
0 ÷ 120
mins.
Pr2
1 min.
- 12∃0 ÷
+12∃0
Pr2
0
0=Degrees C
1=Degrees F
0 = Cooling
1 = Heating
Pr2
0
Pr2
0
0 ÷ 120
mins.
Pr2
30 mins.
0 ÷ 120
mins.
Pr2
30 mins.
- 57 c ÷
Set Point
Set Point ÷
99 c
0 ÷ 30 mins.
Parameters - XR120C – XR130C – XR130D Off cycle defrost controllers
Use fold out programming flow chart inside front cover
Parameter &
Label
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
AC Anti Short
Cycle
ALC Alarm
Configuration
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
Ods Delay of
Outputs on Start
Up
CCt Fast Chill /
Freeze
dAF Delay of
Defrost after fast
chill
IdF Interval
Between defrosts
ndF Length
of Defrost
dFd Display
During Defrost
dAd Max display
after Defrost
dPO First Defrost
after start up
Ot Thermostat
Probe Calibration
CF Unit of
Measurement
COn Probe Fault
“ON” Time
COF Probe Fault
“OFF” Time
Description
Range
Pr1
Pr2
Pr1
Pr1
Factory
Default
3c
2c
- 57 c ÷
Set Point
Set Point ÷ 99 c
Pr2
- 57 c
Pr2
99 c
0 ÷ 30 mins.
Pr2
1 min.
0=Relative
1=Absolute
2=Relative
3=Absolute
Pr2
0
Set Point ÷ 99c
Pr2
10 c
-57c ÷ Set Point
Pr2
10 c
0 ÷ 120 mins.
Pr2
15 mins.
0 ÷ 720 mins.
Pr2
90 mins.
0 ÷ 120 mins.
Pr2
1 min.
0 ÷ 990 mins.
Pr2
240 mins.
0 ÷ 120 mins.
Pr2
120 mins.
1 ÷ 120 hours
Pr2
8 hours
Sets the duration time of the defrost
0 ÷ 120 mins.
Pr2
20 mins.
This tells the controller what to display during defrost.
0 = Actual temperature,
1 = Temperature at start of defrost,
2 = Set Point,
3 = “DEF” label
0
1
2
3
0 ÷ 120 mins.
Pr2
1
Pr2
30 mins.
0=immediate
Pr2
1
Pr2
0c
Pr2
0
Pr2
15 mins.
Pr2
30 mins.
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the compressor
is re-started
Sets the lowest temperature to which the customer can adjust the Set
Point
Sets the highest temperature to which the customer can adjust the Set
Point
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Note: (Only for XR130C / D with alarm relay):0 & 1 – Muting buzzer de-activates alarm relay
2 & 3 – Muting buzzer leaves alarm relay activated
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
Sets the time delay between the power to the controller being turned
on and any output relay starting to operate. This can be used to
prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following a
power failure, to prevent everything trying to start at once and
blowing a fuse.
The controller has a thermostat override facility. This parameter sets
the override time during which the compressor will run continuously
irrespective of the temperature. Setting time to 0 to disables this
function
Sets the period of time following a thermostat override after which
the controller will go into a defrost. The controller will then resume
normal operation
Sets the interval time between the start of successive defrosts
After defrost, the temperature as it was at commencement of defrost
is displayed. Normal display is resumed once the actual temperature
drops below this point or the time set in this parameter has expired
Tells the controller whether to do an immediate defrost when the
power is switched on or to wait for the normal interval time as set in
parameter IdF. Can be used to make sure defrosts are not missed in
areas with unreliable power supplies.
Probe offset adjustment
Sets the display to read out in Celsius or Fahrenheit
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “ON” time period
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “OFF” time period
- 10 -
LS ÷ US
0∃ 2 ÷ 12∃ 0 c
1=After IdF
time
-12 ∃ 0 ÷
+12 ∃ 0 c
0=Degrees C
1=Degrees F
0 ÷ 120 mins.
0 ÷ 120 mins.
Parameters - XR140C - XR150C Controllers with forced defrost
Use fold out programming flow chart inside front cover
Parameter &
Label
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
AC Anti Short
Cycle
ALC Alarm
Configuration
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
Ods Delay of
Outputs on Start
Up
CCt Fast Chill /
Freeze
dAF Delay of
Defrost after fast
chill
IdF Interval
Between defrosts
dSd Delay start
of defrost
ndF Length
Of Defrost
dtE Defrost
Termination
Temperature
dFd Display
During Defrost
dAd Max display
after Defrost
tdF Defrost Type
EdF Evaporator
Probe Presence
Description
Range
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the compressor
is re-started
Sets the lowest temperature to which the customer can adjust the Set
Point
Sets the highest temperature to which the customer can adjust the Set
Point
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Note: (Only for XR150C with alarm relay):0 & 1 – Muting buzzer de-activates alarm relay
2 & 3 – Muting buzzer leaves alarm relay activated
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
Sets the time delay between the power to the controller being turned
on and any output relay starting to operate. This can be used to
prevent short cycling of the compressor following a momentary
power failure, or to stagger the re-start of multiple units following a
power failure, to prevent everything trying to start at once and
blowing a fuse.
The controller has a thermostat override facility. This parameter sets
the override time during which the compressor will run continuously
irrespective of the temperature. Setting time to 0 to disables this
function
Sets the period of time following a thermostat override after which
the controller will go into defrost. The controller will then resume
normal operation after this defrost terminates
Sets the interval time between the start of successive defrosts
When a defrost is due to commence ( after the IdF time), this
parameter adds a period of time during which the start of defrost is
delayed. Used to stagger defrosts between multiple controllers
Sets the maximum duration time of the defrost
Sets the evaporator temperature at which the controller will terminate
the defrost. This temperature is sensed by the evaporator probe.
This tells the controller what to display during defrost.
0 = Actual temperature,
1 = Temperature at start of defrost,
2 = Set Point,
3 = “DEF” label
After defrost, the temperature as it was at commencement of defrost
is displayed. Normal display is resumed once the actual temperature
drops below this point or the time set in this parameter has expired
Configures the controller for defrost by electrical heaters or hot gas.
If set for hot gas, the compressor is kept running during defrost.
* Settings 2 & 3 are for special applications only. Refer to
manufacturer’s manual
This controller can work with or without an evaporator probe.
0=No evaporator probe, defrost will terminate on time.
1=Evaporator probe present, defrost will terminate on temperature.
Note: When EdF=0, there is no need to fit an evaporator probe and
the controller will not produce a P2 evaporator probe alarm
- 11 -
Pr1
Pr2
Pr1
Pr1
Factory
Default
-5c
2c
- 57 c ÷
Set Point
Set Point ÷ 99 c
Pr2
- 30 c
Pr2
20 c
0 ÷ 30 mins.
Pr2
1 min.
0=Relative
1=Absolute
2=Relative
3=Absolute
Pr2
0
Set Point ÷ 99c
Pr2
10 c
-57c ÷ Set Point
Pr2
10 c
0 ÷ 120 mins.
Pr2
15 mins.
0 ÷ 720 mins.
Pr2
90 mins.
0 ÷ 120 mins.
Pr2
1 min.
0 ÷ 990 mins.
Pr2
240 mins.
0 ÷ 120 mins.
Pr2
120 mins.
1 ÷ 120 hours
Pr2
6 hours
0 ÷ 59 mins
Pr2
0 mins.
0 to 120 mins.
Pr2
30 mins.
- 57 to 99 c
Pr2
8c
0
1
2
3
0 to 120 mins.
Pr2
1
Pr2
30 mins.
Pr2
0
Pr2
1
LS ÷ US
0∃ 2 ÷ 12∃ 0 c
0=Electrical
1=Hot Gas
2=*
3=*
0 = No Probe
1 = Probe
Parameters - XR140C - XR150C continued.
Use fold out programming flow chart inside front cover
Fdt Drip Time
dPO First Defrost
after start up
Ot Thermostat
Probe Calibration
OE Evaporator
Probe Calibration
CF Unit of
Measurement
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
Sets the period of time following the termination of a defrost during
which nothing happens. This allows any residual moisture on the
evaporator time to drip down and drain away.
Tells the controller whether to do an immediate defrost when the
power is switched on or to wait for the normal interval time as set in
parameter IdF. Can be used to make sure defrosts are not missed in
areas with unreliable power supplies.
Probe offset adjustment – thermostat
Probe offset adjustment – evaporator
Sets the display to read out in Celsius or Fahrenheit
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “ON” time period
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “OFF” time period
- 12 -
0 ÷ 120 mins.
0=immediate
1=After IdF
time
- 12 ∃ 0 ÷ 12 ∃
0c
- 12 ∃ 0 ÷ 12 ∃
0c
0=Degrees C
1=Degrees F
0 ÷ 120 mins.
0 ÷ 120 mins.
Pr2
0
Pr2
1
Pr2
0
Pr2
0
Pr2
0
Pr2
15 mins.
Pr2
30 mins.
Parameters - XR160C – XR170C – XR162C – XR172C - XR160D –
XR170D Controllers with forced defrost & fan delay
Use fold out programming flow chart inside front cover
Parameter &
Label
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
AC Anti Short
Cycle
ALC Alarm
Configuration
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
Ods Delay of
Outputs on Start
Up
CCt Fast Chill /
Freeze
dAF Delay of
Defrost after fast
chill
IdF Interval
Between defrosts
dSd Delay start
of defrost
ndF Length
Of Defrost
dtE Defrost
Termination
Temperature
dFd Display
During Defrost
dAd Max display
after Defrost
tdF Defrost Type
Description
Range
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the compressor
is re-started
Sets the lowest temperature to which the customer can adjust the Set
Point
Sets the highest temperature to which the customer can adjust the Set
Point
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Note: (Only for XR150C with alarm relay):0 & 1 – Muting buzzer de-activates alarm relay
2 & 3 – Muting buzzer leaves alarm relay activated
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
Sets the time delay between the power to the controller being turned
on and any output relay starting to operate. This can be used to
prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following a
power failure, to prevent everything trying to start at once and
blowing a fuse.
The controller has a thermostat override facility. This parameter sets
the override time during which the compressor will run continuously
irrespective of the temperature. Setting time to 0 to disables this
function
Sets the period of time following a thermostat override after which
the controller will go into a defrost. The controller will then resume
normal operation
Sets the interval time between the start of successive defrosts
LS to US
0∃ 2 °÷ 12∃ 0 c
When a defrost is due to commence ( after the IdF time), this
parameter adds a period of time during which the start of defrost is
delayed. Used to stagger defrosts between multiple controllers
Sets the maximum duration time of the defrost
Sets the evaporator temperature at which the controller will terminate
the defrost. This temperature is sensed by the evaporator probe.
This tells the controller what to display during defrost.
0 = Actual temperature,
1 = Temperature at start of defrost,
2 = Set Point,
3 = “DEF” label
After defrost, the temperature as it was at commencement of defrost
is displayed. Normal display is resumed once the actual temperature
drops below this point or the time set in this parameter has expired
Configures the controller for defrost by electrical heaters or hot gas.
If set for hot gas, the compressor is kept running during defrost.
* Settings 2 & 3 are for special applications only. Refer to
manufacturer’s manual
- 13 -
Pr1
Pr2
Pr1
Pr1
Factory
Default
-5c
2c
- 57 c ÷
Set Point
Set Point ÷ 99 c
Pr2
- 30 c
Pr2
20 c
0 ÷ 30 mins.
Pr2
1 min.
0=Relative
1=Absolute
2=Relative
3=Absolute
Pr2
0
Set Point ÷ 99 c
Pr2
10 c
-57c ÷ Set Point
Pr2
10 c
0 ÷ 120 mins.
Pr2
15 mins.
0 ÷ 720 mins.
Pr2
90 mins.
0 ÷ 120 mins.
Pr2
1 min.
0 ÷ 990 mins.
Pr2
240 mins
0 ÷ 120 mins.
Pr2
120 mins.
1 ÷ 120 hours
Pr2
6 hours
0 ÷ 59 mins
Pr2
0 mins.
0 ÷ 120 mins.
Pr2
30 mins.
- 57 ÷ 50 c
Pr2
8c
0
1
2
3
0 ÷ 120 mins.
Pr2
1
Pr2
30 mins.
Pr2
0
0=Electrical
1=Hot Gas
2=*
3=*
Parameters - XR160C – XR170C – XR162C – XR172C - XR160D
XR170D Continued
Use fold out programming flow chart inside front cover
EdF Evaporator
Probe Presence
Fdt Drip Time
dPO First Defrost
after start up
FnC Fan
Operating Mode
Also control of a
2nd compressor
FSt Fan Stop
Temperature
Fnd Fan Delay
Ot Thermostat
Probe Calibration
OE Evaporator
Probe Calibration
CF Unit of
Measurement
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
This controller can work with or without an evaporator probe.
0=No evaporator probe, defrost will terminate on time.
1=Evaporator probe present, defrost will terminate on temperature.
Note: When EdF=0, there is no need to fit an evaporator probe and
the controller will not produce a P2 evaporator probe alarm
Sets the period of time following the termination of a defrost during
which period nothing happens. This allows any residual moisture on
the evaporator time to drip down and drain away.
Tells the controller whether to do an immediate defrost when the
power is switched on or to wait for the normal interval time as set in
parameter IdF. Can be used to make sure defrosts are not missed in
areas with unreliable power supplies.
Defines how the evaporator fan relay operates.
0 = The fan stops and starts with the compressor (fan off during
defrost )
1 = The fan runs continuously ( fan off during defrost )
2 = The fan stops and starts with the compressor (fan on during
defrost )
3 = The fan runs continuously ( fan on during defrost )
4 = Fan relay used instead, to control a 2nd compressor :If the fan relay is not being used to control an evaporator fan, it can
be used to control a second compressor by setting FnC = 4.
Note: Parameter Fnd ( fan delay ) now becomes the delay between
the start of the 1st and 2nd compressor.
Sets the maximum temperature ( sensed by the evaporator probe )
above which the controller stops evaporator fans from running
Sets the time delay between the end of defrost and the evaporator
fans re-starting.
Note: If parameter FnC=4 (fan relay used to control a 2nd
compressor), it sets the delay between the start of the 1st & 2nd
compressor
Probe offset adjustment – thermostat
Probe offset adjustment – evaporator
Sets the display to read out in Celsius or Fahrenheit
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “ON” time period
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “OFF” time period
- 14 -
0 = No Probe
1 = Probe
Pr2
1
0 ÷ 120 mins.
Pr2
0
0=immediate
Pr2
1
1=After IdF
time
0=cycle with
compressor
1= Continuous
Pr2
1
- 60 ÷ 50 c
Pr2
2c
0 ÷ 120 mins.
Pr2
10 mins.
- 12 ÷ 12
Pr2
0
- 12 ÷ 12
Pr2
0
0=Degrees C
1=Degrees F
0 ÷ 120 mins.
Pr2
0
Pr2
15 mins.
0 ÷ 120 mins.
Pr2
30 mins.
Parameters - XR530C - XR530D Off cycle defrost controllers with
Real Time Clock
Use fold out programming flow chart inside front cover
Parameter &
Label
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
AC Anti Short
Cycle
Ods Delay of
Outputs on Start
Up
ALC Alarm
Configuration
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
EdA Alarm delay
at end of defrost
CCt Fast Chill /
Freeze
dAF Delay of
Defrost after fast
chill
IdF Interval
Between defrosts
ndF Length
Of Defrost
dFd Display
During Defrost
dAd Max display
after Defrost
dPO First Defrost
after start up
Ot Thermostat
Probe Calibration
rES Resolution
Description
Range
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the compressor
is re-started
Sets the lowest temperature to which the customer can adjust the Set
Point
Sets the highest temperature to which the customer can adjust the Set
Point
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
Sets the time delay between the power to the controller being turned
on and any output relay starting to operate. This can be used to
prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following a
power failure, to prevent everything trying to start at once and
blowing a fuse.
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is altered t
alarm levels will follow it
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
Sets the time delay at the end of defrost between an alarm condition
being detected and the alarm being signaled.
The controller has a thermostat override facility. This parameter sets
the override time during which the compressor will run continuously
irrespective of the temperature. Setting time to 0 to disables this
function
Sets the period of time following a thermostat override after which
the controller will go into a defrost. The controller will then resume
normal operation
Sets the interval time between the start of successive defrosts. This
only functions if the real time clock settings are lost.
Sets the maximum duration time of the defrost
This tells the controller what to display during defrost.
0 = Actual temperature,
1 = Temperature at start of defrost,
2 = Set Point,
3 = “DEF” label
After defrost, the temperature as it was at commencement of defrost
is displayed. Normal display is resumed once the actual temperature
drops below this point or the time set in this parameter has expired
Tells the controller whether to do an immediate defrost when the
power is switched on or to wait for the normal interval time as set in
parameter IdF. Can be used to make sure defrosts are not missed in
areas with unreliable power supplies.
Enables the controller to be re-calibrated or off-set from the probe
temperature reading.
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
- 15 -
LS ÷ US
1 ÷ 50 c
Pr1
Pr2
Pr1
Pr1
Factory
Default
3c
2c
- 50 c ÷
Set Point
Set Point ÷ 50 c
Pr2
- 10 c
Pr2
20 c
0 ÷ 30 mins.
Pr2
1 min.
0 ÷ 30 mins.
Pr2
1 min.
0=Relative
1=Absolute
Pr2
0
Set Point ÷ 50c
Pr2
10 c
-50c ÷ Set Point
Pr2
10 c
0 ÷ 255 mins.
Pr2
15 mins.
0 ÷ 23h. 50min
Pr2
0 ÷ 255 mins.
Pr2
1hr. 30
mins.
30 mins.
0 ÷ 24 hours
Pr2
4 hours
0 ÷ 23h. 50min
Pr2
1 hour
1 ÷ 99 hours
Pr2
8 hours
0 ÷ 255 mins.
Pr2
20 mins.
0
1
2
3
0 ÷ 255 mins.
Pr2
1
Pr2
30 mins.
0=immediate
Pr2
1
1=After IdF
time
- 30 c ÷ 30 c
Pr2
0
Pr2
1
0=Off
1=On
Parameters - XR530C - XR530D Continued
Use fold out programming flow chart inside front cover
CF Unit of
Measurement
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
dIC Digital input
mode
dId Digital input
delay
tBA Alarm Mute
On / Off
Ad 1-Ad 2 Serial
Address
Ptb Parameter
Table
Sets the display to read out in Celsius or Fahrenheit
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “ON” time period
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “OFF” time period
Configures controller’s response to an input on “Digital input 1”
0 = Generic alarm. Display will flash “EA”, alarm sounds and
alarm relay operates, controller continues to control as normal
1 = Important alarm. Display will flash “CA”, alarm sounds and
alarm relay operates, controller relays open to stop all functions.
2 = Serious alarm. Display will flash “OFF”, alarm sounds and
alarm relay operates, controller relays open to stop all functions.
3=External consent for defrost end: See technical manual
Sets the delay between an input being detected by “Digital input 1”
and the alarm being activated.
Allows or prevents muting of the alarm buzzer and alarm relay.
0 = Alarm cannot be muted, 1 = Alarm can be muted
This is only utilized when the instrument is being used as part of a
networked control system together with other controllers, all linked
back to a monitoring panel. It gives the controller it’s system address.
Shows in sequence every parameter’s label and then displays the
factory default setting for that parameter.
0=Degrees C
1=Degrees F
0 to 255 mins.
Pr2
0
Pr2
15 mins.
0 to 255 mins.
Pr2
30 mins.
Pr2
0
0 to 255 mins.
Pr2
5 mins.
0=Mute disable
1=Mute enable
0 to 94
Pr2
1
Pr2
0/1
- - -
Pr2
- - -
0 = Generic
1 = Important
2 = Serious
3=External
consent
Real Time Clock Parameters
Note : Defrost time resolution is in 10 minute increments, so 12.4 means a start time of 12.40 pm.
To omit a particular defrost period, set it to 00.0
Ld1
Ld2
Ld3
Ld4
Ld5
Ld6
Sd1
Sd2
Sd3
Sd4
Sd5
Sd6
ILE Energy
Saving Cycle
Workdays
dLE Duration
Workdays
ISE Energy
Saving Cycle
Saturdays
dSE Duration
Saturdays
HES Higher set
point
ddd Day
HHH Hour
nnn Minute
Sets the start time for defrost 1, Mondays through to Saturdays
Sets the start time for defrost 2, Mondays through to Saturdays
Sets the start time for defrost 3, Mondays through to Saturdays
Sets the start time for defrost 4, Mondays through to Saturdays
Sets the start time for defrost 5, Mondays through to Saturdays
Sets the start time for defrost 6, Mondays through to Saturdays
Sets the start time for defrost 1, Sundays
Sets the start time for defrost 2, Sundays
Sets the start time for defrost 3, Sundays
Sets the start time for defrost 4, Sundays
Sets the start time for defrost 5, Sundays
Sets the start time for defrost 6, Sundays
Sets the start time ( for Mondays through to Fridays ) at which point
the controller will switch to operating at a higher Set Point. This
higher temperature is defined in parameter “HES” (see below)
Sets the length of time( for Mondays through to Fridays ) during
which the controller will operate at the higher set point set in “HES”
Sets the start time ( for Saturdays ) at which point the controller will
switch to operating at a higher Set Point. This higher temperature is
defined in parameter “HES” (see below)
Sets the length of time( for Saturdays ) during which the controller
will operate at the higher set point set in “HES”
Sets the number of degrees above the normal set point, at which the
controller will operate during the energy saving cycle. Note: During
the energy saving cycle, the temperature display will flash.
Sets the current day. 1 = Monday, 7 = Sunday
Sets the current hour.
Sets the current minute
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
00.0 to 24 .0
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
7.0
20.0
0.0
0.0
0.0
0.0
7.0
20.0
0.0
0.0
0.0
0.0
0.0
0 to 23
Pr2
0
0.0 to 24.0
Pr2
0.0
0 to 72
Pr2
0
0 to 30 c
Pr2
0c
1 to 7 Day
0 to 23 Hours
0 to 59 Mins.
Pr2
Pr2
Pr2
1
0
0
Note : Saturday’s energy saving cycle can be extended for up to 72 hours to allow for weekends and Bank
Holidays. If you want Friday’s energy saving cycle to start and run without a break throughout the
weekend, you can do this by setting Saturday’s cycle to start to a time which is earlier than Friday’s cycle is
due to finish.( which will be some time on Saturday AM ). Hence these two energy saving cycles will
overlap.
- 16 -
Parameters - XR570C - XR570D – XR572C Controllers with forced defrost
& fan delay with Real Time Clock
Use fold out programming flow chart inside front cover
Parameter &
Label
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
AC Anti Short
Cycle
Ods Delay of
Outputs on Start
Up
ALC Alarm
Configuration
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
EdA Alarm delay
at end of defrost
CCt Fast Chill /
Freeze
dAF Delay of
Defrost after fast
chill
IdF Interval
Between defrosts
ndF Length
Of Defrost
SdF Smart
Defrost
dtE Defrost
Termination
Temperature
dFd Display
During Defrost
dAd Max display
after Defrost
tdF Defrost Type
EdF Defrost
Mode
Description
Range
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the compressor
is re-started
Sets the lowest temperature to which the customer can adjust the Set
Point
Sets the highest temperature to which the customer can adjust the Set
Point
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
Sets the time delay between the power to the controller being turned
on and any output relay starting to operate. This can be used to
prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following a
power failure, to prevent everything trying to start at once and
blowing a fuse.
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is altered t
alarm levels will follow it
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
Sets the time delay at the end of defrost between an alarm condition
being detected and the alarm being signaled.
The controller has a thermostat override facility. This parameter sets
the override time during which the compressor will run continuously
irrespective of the temperature. Setting time to 0 to disables this
function
Sets the period of time following a thermostat override after which
the controller will go into a defrost. The controller will then resume
normal operation
Sets the interval time between the start of successive defrosts. This
only functions if the real time clock settings are lost.
Sets the maximum duration time of the defrost
Sets the temperature sensed by the evaporator probe, above which
the count towards next defrost is suspended (as set in parameter IdF )
Only functions if Smart Defrost is enabled ( see parameter EdF )
Sets the evaporator temperature at which the controller will terminate
the defrost. This temperature is sensed by the evaporator probe.
This tells the controller what to display during defrost.
0 = Actual temperature,
1 = Temperature at start of defrost,
2 = Set Point,
3 = “DEF” label
After defrost, the temperature as it was at commencement of defrost
is displayed. Normal display is resumed once the actual temperature
drops below this point or the time set in this parameter has expired
Configures the controller for defrost by electrical heaters or hot gas.
If set for hot gas, the compressor is kept running during defrost.
Sets the defrost mode.
O = Defrost terminates on time
1 = Defrost terminates on temperature with time over ride.
2 = Smart defrost
- 17 -
LS ÷ US
1 ÷ 50 c
Pr1
Pr2
Pr1
Pr1
Factory
Default
-5c
2c
- 50 c ÷
Set Point
Set Point ÷ 50 c
Pr2
- 30 c
Pr2
20 c
0 ÷ 30 mins.
Pr2
1 min.
0 ÷ 30 mins.
Pr2
1 min.
0=Relative
1=Absolute
Pr2
0
Set Point ÷ 50c
Pr2
10 c
-50c ÷ Set Point
Pr2
10 c
0 ÷ 255 mins.
Pr2
15 mins.
0 ÷ 23h. 50min
Pr2
0 ÷ 255 mins.
Pr2
1hr. 30
mins.
30 mins.
0 ÷ 24 hours
Pr2
4 hours
0 ÷ 23h. 50min
Pr2
2 hours
1 ÷ 99 hours
Pr2
6 hours
0 ÷ 255 mins.
Pr2
30 mins.
- 30 ÷ 30 c
Pr2
0c
- 50 ÷ 50 c
Pr2
8c
0
1
2
3
0 ÷ 255 mins.
Pr2
1
Pr2
30 mins.
0=Electrical
1=Hot Gas
0=Time/Time
1=Time/Temp.
2=Smart Def.
Pr2
0
Pr2
1
Parameters - XR570C - XR570D – XR572C - Continued
Use fold out programming flow chart inside front cover
Fdt Drip Time
Sets the period of time following the termination of a defrost during
which period nothing happens. This allows any residual moisture on
the evaporator time to drip down and drain away.
0 ÷ 255 mins.
Pr2
0
dPO First Defrost
after start up
Tells the controller whether to do an immediate defrost when the
power is switched on or to wait for the normal interval time as set in
parameter IdF. Can be used to make sure defrosts are not missed in
areas with unreliable power supplies.
Tells the evaporator fan to either run continuously ( apart from
during defrost ) or to cycle on and off with the compressor.
0=immediate
Pr2
1
Pr2
1
Pr2
10 mins.
- 50 c ÷ 50 c
Pr2
-1c
- 30 c ÷ 30 c
Pr2
0
- 30 c ÷ 30 c
Pr2
0
0=Off
1=On
0=Degrees C
1=Degrees F
0 ÷ 255 mins.
Pr2
1
Pr2
0
Pr2
15 mins.
0 ÷ 255 mins.
Pr2
30 mins.
Pr2
0
0 ÷ 255 mins.
Pr2
5 mins.
0 ÷ 255 mins.
Pr2
15mins.
0=Mute disable
1=Mute enable
0 ÷ 94
Pr2
1
Pr2
0/1
- - -
Pr2
- - -
FnC Fan
Operating Mode
Fnd Fan Delay
FSt Fan Stop
Temperature
Ot Thermostat
Probe Calibration
OE Evaporator
Probe Calibration
rES Resolution
CF Unit of
Measurement
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
dIC Digital input
mode
dId Digital input
delay
dOA Open door
alarm delay
tBA Alarm Mute
On / Off
Ad 1-Ad 2 Serial
Address
Ptb Parameter
Table
Sets the time between the end of defrost and the evaporator fans restarting.
Sets the maximum temperature ( sensed by the evaporator probe )
above which the controller stops evaporator fans from running
Enables the controller to be re-calibrated or off-set from the probe
temperature reading.
Adjusts the off – set of the evaporator probe
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
Sets the display to read out in Celsius or Fahrenheit
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “ON” time period
If a probe fault is detected the display will flash P1 and the controller
will automatically cycle the compressor on and off. This parameter
sets the “OFF” time period
Configures controller’s response to an input on “Digital input 1”
0 = Generic alarm. Display will flash “EA”, alarm sounds and
alarm relay operates, controller continues to control as normal
1 = Important alarm. Display will flash “CA”, alarm sounds and
alarm relay operates, controller relays open to stop all functions.
2 = Serious alarm. Display will flash “OFF”, alarm sounds and
alarm relay operates, controller relays open to stop all functions.
3=External consent for defrost end: See technical manual
Sets the delay between an input being detected by “Digital input 1”
and the alarm being activated.
Sets the delay between an input being detected by “Digital input 2”
and the “Door Open” alarm being activated. ( XR572C only )
Allows or prevents muting of the alarm buzzer and alarm relay.
0 = Alarm cannot be muted, 1 = Alarm can be muted
This is only utilized when the instrument is being used as part of a
networked control system together with other controllers, all linked
back to a monitoring panel. It gives the controller it’s system address.
Shows in sequence every parameter’s label and then displays the
factory default setting for that parameter.
Continued overleaf:-
- 18 -
1=After IdF
time
0=cycle with
compressor
1= Continuous
0 ÷ 255 mins.
0 = Generic
1 = Important
2 = Serious
3=External
consent
Parameters - XR570C - XR570D – XR572C - Continued
Use fold out programming flow chart inside front cover
Real Time Clock Parameters
Note : Defrost time resolution is in 10 minute increments, so 12.4 means a start time of 12.40 pm.
To omit a particular defrost period, set it to 00.0
Ld1
Ld2
Ld3
Ld4
Ld5
Ld6
Sd1
Sd2
Sd3
Sd4
Sd5
Sd6
ILE Energy
Saving Cycle
Workdays
dLE Duration
Workdays
ISE Energy
Saving Cycle
Saturdays
dSE Duration
Saturdays
HES Higher set
point
ddd Day
HHH Hour
nnn Minute
Sets the start time for defrost 1, Mondays through to Saturdays
Sets the start time for defrost 2, Mondays through to Saturdays
Sets the start time for defrost 3, Mondays through to Saturdays
Sets the start time for defrost 4, Mondays through to Saturdays
Sets the start time for defrost 5, Mondays through to Saturdays
Sets the start time for defrost 6, Mondays through to Saturdays
Sets the start time for defrost 1, Sundays
Sets the start time for defrost 2, Sundays
Sets the start time for defrost 3, Sundays
Sets the start time for defrost 4, Sundays
Sets the start time for defrost 5, Sundays
Sets the start time for defrost 6, Sundays
Sets the start time ( for Mondays through to Fridays ) at which point
the controller will switch to operating at a higher Set Point. This
higher temperature is defined in parameter “HES” (see below)
Sets the length of time( for Mondays through to Fridays ) during
which the controller will operate at the higher set point set in “HES”
Sets the start time ( for Saturdays ) at which point the controller will
switch to operating at a higher Set Point. This higher temperature is
defined in parameter “HES” (see below)
Sets the length of time( for Saturdays ) during which the controller
will operate at the higher set point set in “HES”
Sets the number of degrees above the normal set point, at which the
controller will operate during the energy saving cycle. Note: During
the energy saving cycle, the temperature display will flash.
Sets the current day. 1 = Monday, 7 = Sunday
Sets the current hour.
Sets the current minute
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
0.0 to 24.0
01.0 to 24 .0
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
Pr2
6.0
13.0
21.0
0.0
0.0
0.0
6.0
13.0
21.0
0.0
0.0
0.0
0.0
0 to 23
Pr2
0
0.0 to 24.0
Pr2
0.0
0 to 72
Pr2
0
0 to 30 c
Pr2
0c
1 to 7 Day
0 to 23 Hours
0 to 59 Mins.
Pr2
Pr2
Pr2
1
0
0
Note : Saturday’s energy saving cycle can be extended for up to 72 hours to allow for weekends and Bank
Holidays. If you want Friday’s energy saving cycle to start and run without a break throughout the
weekend, you can do this by setting Saturday’s cycle to start to a time which is earlier than Friday’s cycle is
due to finish.( which will be some time on Saturday AM ). Hence these two energy saving cycles will
overlap.
- 19 -
Parameters - XT110C & XT111C - Single Stage Controllers for heating or
cooling
Use fold out programming flow chart inside front cover
Parameter &
Label
SP 1 Set Point
HY 1
Differential
LS1 Lower Limit
Set Point
US1 Upper Limit
Set Point
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
od Output delay
OPb Probe
calibration
Ad1 – Ad2
PbC Probe type
S1C Action type
heating or cooling
So1 Probe fault
relay failsafe
Hdd Half digit
display
rES Resolution
CF Unit of
Measurement
ALC Alarm
configuration
OnF On / Off
Ptb Table
rEL Software
Description
Range
Sets the temperature at which load 1 is switched off
Sets the number of degrees above or below Set Point at which the
load is switched on.
Sets the lowest temperature to which the customer can adjust Set
Point
Sets the highest temperature to which the customer can adjust Set
Point
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms while temperatures stabilize.
Sets the minimum time between a load being switched off and it’s
next re-start. ( anti short cycle )
Probe offset adjustment
LS1 to US1
Bottom of scale
÷ top of scale
Bottom of scale
÷ Set Point
Set Point ÷ top
of scale
Set Point ÷ top
of scale
Bottom of scale
to Set Point
0 ÷ 999 mins.
Serial address – only used when connected to Xj500 monitoring unit
Configures controller for the following probe types
RTD Ni100 & Pt100 or Thermocouples J, K & S
Note: This parameter is not in controllers with PTC probe input
Configures output Relay to inverse or direct action.
0 = Inverse action ( Heating )
1 = Direct action ( Cooling )
Configures the relay to fail safe open or closed in the event of a
probe fault. 0 = Fail to open, 1 = Fail to closed
Half digit On / Off - Used to make the display’s right hand digit read
full scale ( 0 to 9 ) or half digit only ( 0 or 5 )
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree. Note : Not for thermocouple models.
Sets the display to read out in Celsius or Fahrenheit
Configures the temperature alarm to be either “Absolute”, i.e.
adjusted to a fixed temperature or “Relative to Set Point”, i.e. so
many degrees over and under set point. If set to “Relative” then the
alarms level will follow the Set Point if it is altered.
Allows the SET button to be used to put the controller into OFF
mode. Push SET for 4 secs. and the display will show “OFF” and
relays will remain open. Repeat to turn ON again.
Read only – for factory use.
Shows the version of software in use with this particular controller
Pr1
Pr2
Pr1
Pr1
Factory
Default
0c
-1c
Pr2
Min.
Pr2
Max.
Pr2
10 c
Pr2
10 c
Pr2
15 mins.
0 ÷ 999 mins.
Pr2
30 mins.
0 ÷ 500 secs.
Pr2
0 secs.
Bottom of scale
÷ top of scale
0 ÷ 99
0=J
1 = K ( Ni100 )
2 = S ( Pt100 )
0 = inverse
1 = direct
Pr2
0
Pr2
Pr2
-
Pr2
0
Pr2
0
Pr2
0
Pr2
0
Pr2
0
Pr2
0
0=Disable
1=Enable
Pr2
0
-----
Pr2
Pr2
-----
0 = Fail open
1 = Fail closed
0 = Off
1 = On
0 = Off
1 = On
0=Degrees C
1=Degrees F
0 = Relative
1 = Absolute
Note : If the decimal point is switched on ( rES ), all parameter values expressed in degrees will be divided
by 10, including the Set Point.
- 20 -
Parameters - XT120C & XT121C - Two stage for heating & cooling
Use fold out programming flow chart inside front cover
Parameter &
Label
SP 1 Set Point 1
SP 2 Set Point 2
HY 1
Differential 1
HY 2
Differential 2
LS1 Lower Limit
Set Point 1
LS2 Lower Limit
Set Point 2
US1 Upper Limit
Set Point 1
US2 Upper Limit
Set Point 2
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
od Output delay
OPb Probe
calibration
Ad1 – Ad2
PbC Probe type
OUC Set Points
linked or not
S1C Action type
Output 1
S2C Action type
for Output 2
So1 Probe fault
failsafe, Relay 1
So2 Probe fault
failsafe, Relay 2
Hdd Half digit
display
rES Resolution
CF Unit of
Measurement
ALC Alarm
configuration
OnF On / Off
Ptb Table
rEL Software
Description
Range
Sets the temperature at which load 1 is switched off
Sets the temperature at which load 2 is switched off
Note: If Set Points are linked (see parameter OUC), then the setting
of SP2= the number of degrees over or under Set Point 1
Sets the number of degrees above or below Set Point 1 at which the
load is switched on.
Sets the number of degrees above or below Set Point 2 at which the
load is switched on.
Sets the lowest temperature to which the customer can adjust Set
Point 1
Sets the lowest temperature to which the customer can adjust Set
Point 2
Sets the highest temperature to which the customer can adjust Set
Point 1
Sets the highest temperature to which the customer can adjust Set
Point 2
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms while temperatures stabilize.
Sets the minimum time between a load being switched off and it’s
next re-start. ( anti short cycle )
Probe offset adjustment
LS1 to US1
LS2 to US2
Serial address – only used when connected to Xj500 monitoring unit
Configures controller for the following probe types
RTD Ni100 & Pt100 or Thermocouples J, K & S
Note: This parameter is not in controllers with PTC probe input
Determines if Set Point 2 is linked or unlinked to Set Point 1.
If linked, then when Set Point 1 is altered, Set Point 2 will follow it.
Configures output Relay 1 to inverse or direct action.
0 = Inverse action ( Heating )
1 = Direct action ( Cooling )
Configures output Relay 2 to inverse or direct action.
0 = Inverse action ( Heating )
1 = Direct action ( Cooling )
Configures Relay 1 to fail safe open or closed in the event of a probe
fault. 0 = Fail to open, 1 = Fail to closed
Configures Relay 2 to fail safe open or closed in the event of a probe
fault. 0 = Fail to open, 1 = Fail to closed
Half digit On / Off - Used to make the display’s right hand digit read
full scale ( 0 to 9 ) or half digit only ( 0 or 5 )
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree. Note : Not for thermocouple models.
Sets the display to read out in Celsius or Fahrenheit
Configures the temperature alarm to be either “Absolute”, i.e.
adjusted to a fixed temperature or “Relative to Set Point”, i.e. so
many degrees over and under set point. If set to “Relative” then the
alarms level will follow the Set Point if it is altered.
Allows the SET button to be used to put the controller into OFF
mode. Push SET for 4 secs. and the display will show “OFF” and
relays will remain open. Repeat to turn ON again.
Read only – for factory use.
Shows the version of software in use with this particular controller
Pr1
Pr2
Pr1
Pr1
Factory
Default
0c
1c
Bottom of scale
÷ top of scale
Bottom of scale
÷ top of scale
Bottom of scale
÷ Set Point
Bottom of scale
÷ Set Point
Set Point ÷ top
of scale
Set Point ÷ top
of scale
Set Point ÷ top
of scale
Bottom of scale
÷ Set Point
0 ÷ 999 mins.
Pr1
-1c
Pr1
-1 c
Pr2
Min.
Pr2
Min.
Pr2
Max.
Pr2
Max.
Pr2
10 c
Pr2
10 c
Pr2
15 mins.
0 ÷ 999 mins.
Pr2
30 mins.
0 ÷ 500 secs.
Pr2
0 secs.
Bottom of scale
÷ top of scale
0 ÷ 99
0=J
1 = K ( Ni100 )
2 = S ( Pt100 )
0=Dependent
1=Independent
0 = inverse
1 = direct
Pr2
0
Pr2
Pr2
-
Pr2
1
Pr2
0
0 = inverse
1 = direct
Pr2
0
0 = Fail open
1 = Fail closed
0 = Fail open
1 = Fail closed
0 = Off
1 = On
0 = Off
1 = On
0=Degrees C
1=Degrees F
0 = Relative
1 = Absolute
Pr2
0
Pr2
0
Pr2
0
Pr2
0
Pr2
0
Pr2
0
0=Disable
1=Enable
Pr2
0
-----
Pr2
Pr2
-----
Note : If the decimal point is switched on ( rES ), all parameter values expressed in degrees will be divided
by 10, including the Set Point.
- 21 -
Parameters - XT130C & XT131C Dead Band Heating & Cooling
Use fold out programming flow chart inside front cover
Parameter &
Label
SP Set Point
db Dead Band
LS1 Lower Limit
of Set Point
US1 Upper Limit
of Set Point
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
od Output delay
OPb Probe
calibration
Ad1 – Ad2
PbC Probe type
So1 Probe fault
failsafe, Relay 1
So2 Probe fault
failsafe, Relay 2
Hdd Half digit
display
rES Resolution
CF Unit of
Measurement
ALC Alarm
configuration
OnF On / Off
Ptb Parameters
rEL Software
Description
Range
Sets the temperature at which either load is switched off
Sets the number of degrees above and below the Set Point, at which
temperature either of the loads are switched on
Sets the lowest temperature to which the customer can adjust Set
Point
Sets the highest temperature to which the customer can adjust Set
Point
Sets the high temperature alarm level. If ALC=0 it sets how many
degrees above Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the low temperature alarm level. If ALC=0 it sets how many
degrees below Set Point. If ALC=1 it sets a fixed alarm temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms while temperatures stabilize.
Sets the minimum time between a load being switched off and it’s
next re-start. ( anti short cycle )
Probe offset adjustment
LS1 to US1
0.1 c ÷ end of
scale
Bottom of scale
÷ Set Point
Set Point ÷ top
of scale
Set Point ÷ top
of scale
Bottom of scale
÷ Set Point
0 ÷ 999 mins.
Serial address – only used when connected to Xj500 monitoring unit
Configures controller for the following probe types
RTD Ni100 & Pt100 or Thermocouples J, K & S
Note: This parameter is not in controllers with PTC probe input
Configures Relay 1 to fail safe open or closed in the event of a probe
fault. 0 = Fail to open, 1 = Fail to closed
Configures Relay 2 to fail safe open or closed in the event of a probe
fault. 0 = Fail to open, 1 = Fail to closed
Used to make the display’s left hand digit read full scale ( 0 to 9 ) or
half digit only ( 0 or 5 ) Half digit On / Off
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree. Note : Not for thermocouple models.
Sets the display to read out in Celsius or Fahrenheit
Configures the temperature alarm to be either “Absolute”, i.e.
adjusted to a fixed temperature or “Relative to Set Point”, i.e. so
many degrees over and under set point. If set to “Relative” then the
alarms level will follow the Set Point if it is altered.
Allows the SET button to be used to put the controller into OFF
mode. Push SET for 4 secs. and the display will show “OFF” and
relays will remain open. Repeat to turn ON again.
Read only – for factory use.
Shows the version of software in use with this particular controller
Pr1
Pr2
Pr1
Pr1
Factory
Default
0c
1c
Pr2
Min.
Pr2
Max.
Pr2
10 c
Pr2
10 c
Pr2
15 mins.
0 ÷ 999 mins.
Pr2
30 mins.
0 ÷ 500 secs.
Pr2
0 secs.
Bottom of scale
÷ top of scale
0 ÷ 99
0=J
1 = K ( Ni100 )
2 = S ( Pt100 )
0 = Fail open
1 = Fail closed
0 = Fail open
1 = Fail closed
0 = Off
1 = On
0 = Off
1 = On
0=Degrees C
1=Degrees F
0 = Relative
1 = Absolute
Pr2
0
Pr2
Pr2
-
Pr2
0
Pr2
0
Pr2
0
Pr2
0
Pr2
0
Pr2
0
0=Disable
1=Enable
Pr2
0
-----
Pr2
Pr2
-----
Note : If the decimal point is switched on ( rES ), all parameter values expressed in degrees will be divided
by 10, including the Set Point.
- 22 -
Parameters XC440C – XC440D & XC460D – Step Controllers
Use fold out programming flow chart inside front cover
Parameter &
Label
SP
Set Point
Hy Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm
Delay
Ot Probe
calibration
Ods Delay of
Outputs on
Start Up
dSC Bottom
end of scale
FSC Top end
of scale
Ad 1-Ad 2
Serial Address
dIC Digital
input mode
dId Digital
input delay
noC Number of
stages
AC Stage
control logic
CP1 Stage 1
capacity
CP2 Stage 2
capacity
CP3 Stage 3
capacity
CP4 Stage 4
capacity
Cd1 Switch up
delay
Description
Sets the temperature (or pressure) at which the last load will switch
off. (PTC input for temperature, 4-20mA input for pressure)
Sets the band width above set point within which the controller will
switch the stages on and off. The controller will automatically divide
this band equally by the number of stages set in parameter noC
Note : You can control stages of heating by setting parameter CH for
inverse action, the band width will then be below the Set Point
Sets the lowest value to which the customer can adjust the Set Point
Range
*( in units )
LS ÷ US
Pr1
Pr2
Pr1
0.3 ÷ 50.0
Pr1
Factory
Default
- 30 c
*
- 80 ÷ SP
Pr2
*
SP ÷ 900.0
Pr2
*
0.5 ÷ 300
Relative to SP
- 300 ÷ 0.5
Relative to SP
0 ÷ 255 mins.
Pr2
*
Pr2
*
Pr2
15 mins.
- 30 ÷ 30
Pr2
*
Sets the time delay between the power to the controller being turned
on and any output relay starting to operate.
0 ÷ 255 mins.
Pr2
1 min.
Adjust this parameter to the same value as the transducer’s bottom
end of pressure scale, typically LP – 0.5 bar or HP 0 bar see note‡
Adjust this parameter to the same value as the transducer’s top end of
pressure scale, typically LP 7 bar or HP 30 bar see note‡
Serial Address. Only used when controller is connected to the Dixell
XJ500 monitoring system
Configures controller’s response to a digital input.
0 = Instrument Off Display will flash “OFF”, alarm sounds and
alarm relay operates, all other relays switch off.
1 = Compressor Alarm. Display will flash “CAL”, alarm sounds
and alarm relay operates, all other relays switch off.
2 = Generic Alarm. Display will flash “EA” alarm sounds and
alarm relay operates, all other relays continue to operate as normal.
3 = Alarm Mute. Allows the digital input to be used to mute a high
or low level alarm from a remote button. (also see parameter “tBA”)
Sets the delay between a digital input being detected and the alarm
response being activated.
Tells the controller how many stages it is controlling. Max 4 stages
for XC440C & XC440D, Max 6 stages for XC460D
Tells the controller how to control the stages.
0 = Straight on / off sequence – stage 1 is always first to start up
1 = Run rotation – Each time a sequence begins, the first stage to
start up rotates, first time it will be stage 1, next time stage 2 etc.
2 = Unequal stage capacities – auto selects best stage combinations
Note : See manual for fuller explanation
Only used when parameter “AC” = 2, for unequal stage capacities.
Tells the controller what percentage of the total available duty is
supplied by Stage 1
Only used when parameter “AC” = 2, for unequal stage capacities.
Tells the controller what percentage of the total available duty is
supplied by Stage 2
Only used when parameter “AC” = 2, for unequal stage capacities.
Tells the controller what percentage of the total available duty is
supplied by Stage 3
Only used when parameter “AC” = 2, for unequal stage capacities.
Tells the controller what percentage of the total available duty is
supplied by Stage 4
Sets the minimum time interval between the switching on of two
separate stages
- 80 ÷ top of
scale
Bottom of
scale ÷ 900.0
0 ÷ 94
Pr2
*
Pr2
*
Pr2
0/1
0
1
2
Pr2
1
0 ÷ 255 mins.
Pr2
60 mins.
XC440 1 ÷ 4
XC460 1 ÷ 6
0
1
2
Pr2
4 or 6
Pr2
1
1 ÷ 99%
Pr2
25%
1 ÷ 99%
Pr2
25%
1 ÷ 99%
Pr2
25%
1 ÷ 99%
Pr2
25%
0 ÷ 250 secs.
Pr2
15 secs.
Sets the highest value to which the customer can adjust the Set Point
Sets the high temperature ( or pressure ) alarm level.
Sets the low temperature ( or pressure ) alarm level.
Sets the time delay between a temperature or pressure alarm
condition being sensed and the alarm being signaled during normal
operation.
Offset for probe or transducer calibration
- 23 -
Parameters – XC440C – XC440D – XC460D - Continued
Use fold out programming flow chart inside front cover
Cd2 Switch
down delay
Cd3 Anti short
cycle
CD4 Anti short
cycle
CPd Anti short
cycle
HrC Hours run
check
IAC Excess
stage run
elimination
Ptb Parameter
Table
rEL Software
release
rES Resolution
CF Unit of
Measurement
CH Action
type all relays
tBA Alarm
Mute On / Off
Sets the minimum time interval between the switching off of two
separate stages
Sets the minimum time interval between successive cycles, i.e.
between the last load switching off and the first one switching on
again. Only used when parameter “AC” is set to 0 or 1
Sets the minimum time period that a stage remains switch on
0 ÷ 250 secs.
Pr2
15 secs.
0 ÷ 250 secs.
Pr2
15 secs.
0 ÷ 250 secs.
Pr2
15 secs.
Sets the minimum time interval between the switching off and back
on again of the same stage
0.0 ÷ 30.0
mins. (in 10
sec.
increments)
0 ÷ 9990
hours
Pr2
1.0 mins
Pr2
9990 hours
0.0 ÷ 25.3
hours
(in 30 min
increments)
Pr2
0.0
-
Pr2
-
Shows the number of the software release in use. ( read only )
-
Pr2
-
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
Sets the display to read out in Celsius or Fahrenheit.
PTC temperature probe input models only.
Configures the controller to inverse or direct action. see note †
0 = Direct action ( Cooling or de-pressurization )
1 = Inverse action ( Heating or pressurization )
Allows or prevents muting of the alarm buzzer and alarm relay.
0 = Alarm cannot be muted, 1 = Alarm can be muted
0
1
0
1
0
1
Pr2
1
Pr2
0
Pr2
0
0
1
Pr2
1
Sets the running hours after which a “Service Due” signal is
generated by the controller. Note : If set to zero, this function is
disabled.
If any stage has been running for a time that exceeds the time set in
this parameter, and no other stage has either switched on or off, the
controller will narrow the differential (parameter HY) to get stages
cycling on / off again. Once Set Point has been achieved, the
differential band will return to it’s normal setting.
Note: If this parameter is set to 0.0, this function is disabled
Factory use – Read only
* These parameters are expressed in units of measurement, which may be temperature ( degrees C ), or
pressure ( bar or PSI ) depending on the input type requested at time of order. The factory defaults
will differ accordingly.
‡ Most pressure transducers have an electrical output of 4 ÷ 20mA, but because the pressure sensing ranges
of different transducers will vary, the controller needs to be told what pressures are represented by
4mA and 20mA respectively. This is done by entering the transducer’s lower and upper pressure range into
parameters dSC & FSC
Example: If your transducer has pressure range of – 0∃5 ÷ 7 Bar (gauge), set parameters as follows:Parameter dSC = - 0∃5 Bar
Parameter FSC =
7 Bar
Note: Absolute pressure range – LP transducers
Your LP transducer may have a range of 0∃5 ÷ 8 Bar (absolute) This is the same as – 0∃5 ÷ 7 Bar (gauge)
so you should still set parameters dSC & FSC at - 0∃5 & 7 Bar when using these transducers.
For HP transducer with a range of 0 ÷ 30 Bar (gauge), set parameters dSC & FSC to 0 & 30 Bar
† Parameter CH sets the controller for Direct action (cooling) or Inverse action. (heating). If set for Inverse
action, these controllers can be used for up to 6 stages of heating (use version with PTC probe input)
- 24 -
UNIVERSAL-R
SERVICE REPLACEMENT CONTROL
The Dixell Universal-R is designed as a multi-purpose field replacement for
over 60 electronic refrigeration controllers commonly found in the field. Its
aim was to provide a solution to the problem of sourcing a service
replacement when there are so many different types of controller being
installed as original equipment. It has proved a great success, with thousands
sold and fitted.
The Universal-R can be used as a service replacement for all popular 32 x
74mm format electronic refrigeration controllers listed opposite. The
original model has now been upgraded. The new version, designated v 2.0,
has two major software improvements that make it even easier to apply.
The inclusion of a new ‘smart’ parameter allows the Universal-R to be
quickly set up to mimic the five basic refrigeration applications of such
controllers: thermostat, thermostat with off-cycle defrost, thermostat with
time initiated and terminated defrost, thermostat with time initiated and
temperature terminated defrost, and the same but with evaporator fan delay.
Setting the 'smart' parameter sets the software defaults accordingly. As a
result programming takes just a few minutes using the new 'Quick
Programming' guide.
The revised Universal-R can also now work with either the industry standard
PTC sensor or the newer NTC type. This means that when replacing
controllers that use either type of sensor the original sensor can be retained if
need be. Should the existing sensors need to be replaced, the Universal-R is
supplied complete with 2 new PTC sensors.
A separate programming guide is available for the Universal-R.
- 25 -
UNIVERSAL-R
A GUIDE TO WHICH MODELS THE UNIVERSAL-R CAN REPLACE.
The Dixell Universal-R can directly replace all of the following controllers
for their most typical applications as well as many others not listed. It is
compatible with the existing sensors from most other leading brands. If the
existing sensors are incompatible or possibly faulty, they can be replaced by
the two new PTC sensors which come supplied with the Universal-R.
When ever practical, replacement of the sensors is always recommended as
good practice.
Controllers that use PTC sensors*
* Please note that some Every controllers may be using NTC sensors
LAE
SAE
MTR11/T1RDS
MTR11/T1RES
SDU11/T1RES
SDU11/T1REBS
MCDU11/T1RDS
MCDU11/T1RDS/1
MCDU11/T1RDS/2
MCDU11/T1RDS/3
CDC112/T1R2S
CDC112/T1R3S
CDC112/T1RBS
RT31-0000
RT31-1000
RC31
RC31-1000
RC31-0100
RC32-0000
RC33
DC31 (PTC)
Eliwell
EWPC
Intek
RK31
RK32
RK33
TK31
DK31 (PTC)
EWPC901
EWPC902
EWPC961
EWPC970
EWPC971
EWPC974
EWPC977A
EWTC101
Tedding- Every
ton
Dixell
EC3-120
EC3-130
EC3-131
EC3-110
EC3-111
EC3-180
EC3-181
EC3-185
XR110C
XR120C
XR130C
XR140C
XR150C
XR160C
XR170C
EK-R31
EK-R32
EK-R33
Controllers that use NTC probes.
Carel
IR32S
IR32Y
IR32C
Eliwell EWPX
CR32T
CR32X
CR32S
CR32Y
EWPX161
EWPX161AR
EWPX170
EWPX171
- 26 -
EWPX174
EWPX174AR
EWPX177A
EWPX185
Parameters – Prime Series XR10C
On / Off Controller for refrigeration or heating
Use fold out programming flow chart inside rear cover
Parameter &
Label
Description
Range
Visible
or
Hidden
menu
Factory
Default
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the
compressor is re-started
Sets the lowest temperature to which the customer can adjust the
Set Point
Sets the highest temperature to which the customer can adjust the
Set Point
Probe offset adjustment – thermostat
LS to US
0∃ 1 ÷ 25∃ 5 c
V
V
5c
2c
- 50 c ÷
Set Point
Set Point ÷
150 c
- 12 ÷ 12 c
H
- 50 c
H
150 c
V
0c
Sets the time delay between the power to the controller being
turned on and any output relay starting to operate. This can be used
to prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following
a power failure, to prevent everything trying to start at once and
blowing a fuse.
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “ON” time period
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “OFF” time period
Sets the controller for heating or cooling applications.
Cooling – Differential is above the Set Point
Heating – Differential is below the Set Point
0 ÷ 255 mins.
H
0 mins.
0 ÷ 50 mins.
V
1
0 ÷ 255 mins.
H
30 mins.
0 ÷ 255 mins.
H
30 mins.
V
CL
H
C
V
dE
rE = Relative
Ab = Absolute
H
Ab
Set Point ÷
150 c
V
150 c
-50 c ÷ Set
Point
V
- 50 c
0 ÷ 255 mins.
H
15 mins.
REGULATION
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
Ot Thermostat
Probe Calibration
Ods Delay of
Outputs on Start
Up
AC Anti Short
Cycle
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
CH Cooling or
Heating mode
CL = Cooling
Ht = Heating
DISPLAY
CF Unit of
Measurement
rES Resolution
Sets the display to read out in Celsius or Fahrenheit
ALC Alarm
Configuration
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Sets the high temperature alarm level. If ALC = rE it sets how
many degrees above Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the low temperature alarm level. If ALC = rE it sets how
many degrees below Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
C = °C
F = °F
in = Off
dE - On
ALARMS
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
- 27 -
Parameters – Prime Series XR20C
Controller for off cycle defrost or heating
Use fold out programming flow chart inside rear cover
Parameter &
Label
Description
Range
Visible
or
Hidden
menu
Factory
Default
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the
compressor is re-started
Sets the lowest temperature to which the customer can adjust the
Set Point
Sets the highest temperature to which the customer can adjust the
Set Point
Probe offset adjustment – thermostat
LS to US
0∃ 1 ÷ 25∃ 5 c
V
V
3c
2c
- 50 c ÷
Set Point
Set Point ÷
150 c
- 12 ÷ 12 c
H
- 50 c
H
150 c
V
0c
Sets the time delay between the power to the controller being
turned on and any output relay starting to operate. This can be used
to prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following
a power failure, to prevent everything trying to start at once and
blowing a fuse.
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
The controller has a thermostat override facility. This parameter
sets the override time during which the compressor will run
continuously irrespective of the temperature. Setting time to 0 to
disables this function
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “ON” time period
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “OFF” time period
Sets the controller for heating or cooling applications.
Cooling – Differential is above the Set Point
Heating – Differential is below the Set Point
0 ÷ 255 mins.
H
0 mins.
0 ÷ 50 mins.
V
1
0.0 ÷ 24.0 hours
(in 10 min.
increments)
H
0.0
0 ÷ 255 mins.
H
15 mins.
0 ÷ 255 mins.
H
30 mins.
V
CL
H
C
V
dE
REGULATION
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
Ot Thermostat
Probe Calibration
Ods Delay of
Outputs on Start
Up
AC Anti Short
Cycle
CCt Fast Chill /
Freeze
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
CH Cooling or
Heating mode
CL = Cooling
Ht = Heating
DISPLAY
C = °C
F = °F
in = Off
dE - On
CF Unit of
Measurement
rES Resolution
Sets the display to read out in Celsius or Fahrenheit
IdF Interval
Between defrosts
ndF Length
Of Defrost
dFd Display
During Defrost
Sets the interval time between the start of successive defrosts
1 ÷ 120 hours
V
8 hours
Sets the maximum duration time of the defrost
0 ÷ 255 mins.
V
20 mins.
This tells the controller what to display during defrost.
rt = Actual temperature,
it = Temperature at start of defrost,
SEt = Set Point,
DEF = “DEF” label
rt
it
SEt
DEF
0 ÷ 255 mins.
H
it
H
30 mins.
rE = Relative
Ab = Absolute
H
Ab
Set Point ÷
110 c
V
150 c
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
DEFROST
dAd Max display
after Defrost
After defrost, the temperature as it was at commencement of
defrost is displayed. Normal display is resumed once the actual
temperature drops below this point or the time set in this parameter
has expired
ALC Alarm
Configuration
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Sets the high temperature alarm level. If ALC = rE it sets how
many degrees above Set Point. If ALC = Ab it sets a fixed alarm
temperature.
ALARMS
ALU Alarm
Level Upper
- 28 -
Parameters – Prime Series XR20C - Continued
Use fold out programming flow chart inside rear cover
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
i1P Digital input
polarity
i1F Digital input
function
did Digital input
delay
PbC Probe Type
Sets the low temperature alarm level. If ALC = rE it sets how
many degrees below Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
The digital input can be activated by either opening or closing the
circuit. oP = Activate on opening, CL = activate on closing
Defines what action the controller will perform in the event that the
digital input is activated.
EAL = External alarm – display will flash “EA”
bAL = Serious alarm – display will flash “CA” - relay turns off
dEF = Controller will start a defrost cycle
AUS = Do not select this setting
Sets the delay period between the sensing of a digital input and the
controller responding with it’s programmed action
Configures controller to work with PTC or NTC probes
- 29 -
-50 c ÷ Set
Point
V
- 50 c
0 ÷ 255 mins.
H
15 mins.
0.0 ÷ 23∃5
hours
(in 10 min.
increments)
oP
CL
EAL
bAL
nPS
AUS
H
1∃30
hours
V
CL
V
EAL
0 ÷ 255 mins.
V
5 mins.
Ptc = PTC
ntc = NTC
V
Ptc
Parameters – Prime Series XR30C
Controller for off cycle defrost or heating
Use fold out programming flow chart inside rear cover
Parameter &
Label
Description
Range
Visible
or
Hidden
menu
Factory
Default
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the
compressor is re-started
Sets the lowest temperature to which the customer can adjust the
Set Point
Sets the highest temperature to which the customer can adjust the
Set Point
Probe offset adjustment – thermostat
LS to US
0∃ 1 ÷ 25∃ 5 c
V
V
3c
2c
- 50 c ÷
Set Point
Set Point ÷
150 c
- 12 ÷ 12 c
H
- 50 c
H
150 c
V
0c
Sets the time delay between the power to the controller being
turned on and any output relay starting to operate. This can be used
to prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following
a power failure, to prevent everything trying to start at once and
blowing a fuse.
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
The controller has a thermostat override facility. This parameter
sets the override time during which the compressor will run
continuously irrespective of the temperature. Setting time to 0 to
disables this function
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “ON” time period
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “OFF” time period
Sets the controller for heating or cooling applications.
Cooling – Differential is above the Set Point
Heating – Differential is below the Set Point
0 ÷ 255 mins.
H
0 mins.
0 ÷ 50 mins.
V
1
0.0 ÷ 24.0 hours
(in 10 min.
increments)
H
0.0
0 ÷ 255 mins.
H
15 mins.
0 ÷ 255 mins.
H
30 mins.
V
CL
H
C
V
dE
REGULATION
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
Ot Thermostat
Probe Calibration
Ods Delay of
Outputs on Start
Up
AC Anti Short
Cycle
CCt Fast Chill /
Freeze
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
CH Cooling or
Heating mode
CL = Cooling
Ht = Heating
DISPLAY
C = °C
F = °F
in = Off
dE - On
CF Unit of
Measurement
rES Resolution
Sets the display to read out in Celsius or Fahrenheit
IdF Interval
Between defrosts
ndF Length
Of Defrost
dFd Display
During Defrost
Sets the interval time between the start of successive defrosts
1 ÷ 120 hours
V
8 hours
Sets the maximum duration time of the defrost
0 ÷ 255 mins.
V
20 mins.
This tells the controller what to display during defrost.
rt = Actual temperature,
it = Temperature at start of defrost,
SEt = Set Point,
DEF = “DEF” label
rt
it
SEt
DEF
0 ÷ 255 mins.
H
it
H
30 mins.
rE = Relative
Ab = Absolute
H
Ab
Set Point ÷
110 c
V
150 c
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
DEFROST
dAd Max display
after Defrost
After defrost, the temperature as it was at commencement of
defrost is displayed. Normal display is resumed once the actual
temperature drops below this point or the time set in this parameter
has expired
ALC Alarm
Configuration
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Sets the high temperature alarm level. If ALC = rE it sets how
many degrees above Set Point. If ALC = Ab it sets a fixed alarm
temperature.
ALARMS
ALU Alarm
Level Upper
- 30 -
Parameters – Prime Series XR30C - Continued
Use fold out programming flow chart inside rear cover
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
tbA Alarm relay
muting
nd
0AC 2 Relay
configuration
i1P Digital input
polarity
i1F Digital input
function
did Digital input
delay
PbC Probe Type
Sets the low temperature alarm level. If ALC = rE it sets how
many degrees below Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
With parameter 0AC set at Alr, the second relay is used as an alarm
relay. Muting can be enabled or disabled by this parameter’s setting
n = When alarm buzzer is muted, alarm relay still remains active
until alarm condition clears
Y = When alarm buzzer is muted, alarm relay will de-activate
The second relay can act as an auxiliary or an alarm relay
ALr = Alarm relay
AUS = Auxiliary relay
DEF = Do not select this setting
The digital input can be activated by either opening or closing the
circuit. oP = Activate on opening, CL = activate on closing
Defines what action the controller will perform in the event that the
digital input is activated.
EAL = External alarm – display will flash “EA”
bAL = Serious alarm – display will flash “CA” – relay turns off
dEF = Controller will start a defrost cycle
AUS = With parameter A0C = AUS, the auxiliary relay activates
Sets the delay period between the sensing of a digital input and the
controller responding with it’s programmed action
Configures controller to work with PTC or NTC probes
- 31 -
-50 c ÷ Set
Point
V
- 50 c
0 ÷ 255 mins.
H
15 mins.
0.0 ÷ 23∃5
hours
(in 10 min.
increments)
H
1∃30
hours
n
H
Y
ALr
AUS
DEF
V
AUS
oP
CL
EAL
bAL
nPS
AUS
V
CL
V
AUS
0 ÷ 255 mins.
V
5 mins.
Ptc = PTC
ntc = NTC
V
Ptc
Y
Parameters – Prime Series XR40C
Controller with forced defrost & fan delay
Use fold out programming flow chart inside rear cover
Parameter &
Label
Description
Range
Visible
or
Hidden
menu
Factory
Default
LS to US
0∃ 1 ÷ 25∃ 5 c
V
V
-5c
2c
- 50 c ÷
Set Point
Set Point ÷
150 c
- 12 ÷ 12 c
H
- 50 c
H
150 c
V
0c
n = No Probe
V
Y
- 12 ÷ 12 c
H
0c
0 ÷ 255 mins.
H
0 mins.
0 ÷ 50 mins.
V
1
0.0 ÷ 24.0 hours
(in 10 min.
increments)
H
0.0
0 ÷ 255 mins.
H
15 mins.
0 ÷ 255 mins.
H
30 mins.
C = °C
F = °F
in = Off
dE - On
H
C
V
dE
REGULATION
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
Ot Thermostat
Probe Calibration
P2P Evaporator
Probe Presence
OE Evaporator
Probe Calibration
Ods Delay of
Outputs on Start
Up
AC Anti Short
Cycle
CCt Fast Chill /
Freeze
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the
compressor is re-started
Sets the lowest temperature to which the customer can adjust the
Set Point
Sets the highest temperature to which the customer can adjust the
Set Point
Probe offset adjustment – thermostat
This controller can work with or without an evaporator probe.
n = No evaporator probe, defrost will terminate on time.
Y = Evaporator probe present, defrost will terminate on
temperature.
Note: When P2P = n, there is no need to fit an evaporator probe
and the controller will not produce a P2 evaporator probe alarm
Probe offset adjustment – evaporator
Sets the time delay between the power to the controller being
turned on and any output relay starting to operate. This can be used
to prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following
a power failure, to prevent everything trying to start at once and
blowing a fuse.
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
The controller has a thermostat override facility. This parameter
sets the override time during which the compressor will run
continuously irrespective of the temperature. Setting time to 0 to
disables this function
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “ON” time period
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “OFF” time period
Y = Probe
DISPLAY
CF Unit of
Measurement
rES Resolution
Sets the display to read out in Celsius or Fahrenheit
Prd Evap Probe
tdF Defrost Type
Shows current temperature of evaporator probe
Configures the controller for defrost by electrical heaters or hot gas.
If set for hot gas, the compressor is kept running during defrost
Sets the evaporator temperature at which the controller will
terminate the defrost. This temperature is sensed by the evaporator
probe ( if fitted )
Sets the interval time between the start of successive defrosts
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
DEFROST
dtE Defrost
Termination
Temperature
IdF Interval
Between defrosts
ndF Length
Of Defrost
Sets the maximum duration time of the defrost
- 32 -
-EL = Electrical
in = Hot Gas
- 50 ÷ 50 c
H
V
-EL
V
8c
1 ÷ 120 hours
V
6 hours
0 ÷ 255 mins.
V
30 mins.
Parameters – Prime Series XR40C - Continued
Use fold out programming flow chart inside rear cover
dFd Display
During Defrost
This tells the controller what to display during defrost.
rt = Actual temperature,
it = Temperature at start of defrost,
SEt = Set Point,
DEF = “DEF” label
dAd Max display
after Defrost
After defrost, the temperature as it was at commencement of
defrost is displayed. Normal display is resumed once the actual
temperature drops below this point or the time set in this parameter
has expired
Sets the period of time following the termination of a defrost during
which period nothing happens. This allows any residual moisture
on the evaporator time to drip down and drain away.
Tells the controller whether to do an immediate defrost when the
power is switched on or to wait for the normal interval time as set
in parameter IdF. Can be used to make sure defrosts are not missed
in areas with unreliable power supplies.
Sets the period of time following a thermostat override after which
the controller will go into a defrost. The controller will then resume
normal operation
Fdt Drip Time
dPO First Defrost
after start up
dAF Delay of
Defrost after fast
chill
rt
it
SEt
DEF
0 ÷ 255 mins.
H
it
H
30 mins.
0 ÷ 120 mins.
H
0
Y = Immediate
H
n
H
0∃ 0
Hours
rE = Relative
Ab = Absolute
H
Ab
Set Point ÷
150 c
V
150 c
-50 c ÷ Set
Point
V
- 50 c
0 ÷ 255 mins.
H
15 mins.
0.0 ÷ 23∃5
hours
(in 10 min.
increments)
Ptc = PTC
ntc = NTC
H
1∃30
hours
V
Ptc
n = After IdF
time
0 ÷ 23∃ 50
(in 10 min.
increments)
ALARMS
ALC Alarm
Configuration
dAO Alarm
Delay at Start Up
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Sets the high temperature alarm level. If ALC = rE it sets how
many degrees above Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the low temperature alarm level. If ALC = rE it sets how
many degrees below Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
PbC Probe Type
Configures controller to work with PTC or NTC probes
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
- 33 -
Parameters – Prime Series XR60C
Controller with forced defrost & fan delay
Use fold out programming flow chart inside rear cover
Parameter &
Label
Description
Range
Visible
or
Hidden
menu
Factory
Default
LS to US
0∃ 1 ÷ 25∃ 5 c
V
V
-5c
2c
- 50 c ÷
Set Point
Set Point ÷
110 c
- 12 ÷ 12 c
H
- 50 c
H
110 c
V
0c
n = No Probe
V
Y
- 12 ÷ 12 c
H
0c
0 ÷ 255 mins.
H
0 mins.
0 ÷ 50 mins.
V
1
0.0 ÷ 24.0 hours
(in 10 min.
increments)
H
0.0
0 ÷ 255 mins.
H
15 mins.
0 ÷ 255 mins.
H
30 mins.
C = °C
F = °F
in = Off
dE - On
H
C
V
dE
REGULATION
SP Set Point
HY Differential
LS Lower Set
Point Limit
US Upper Set
Point Limit
Ot Thermostat
Probe Calibration
P2P Evaporator
Probe Presence
OE Evaporator
Probe Calibration
Ods Delay of
Outputs on Start
Up
AC Anti Short
Cycle
CCt Fast Chill /
Freeze
COn Probe Fault
“ON”
Time
COF Probe Fault
“OFF”
Time
Sets the temperature at which the compressor stops
Sets the number of degrees above Set Point at which the
compressor is re-started
Sets the lowest temperature to which the customer can adjust the
Set Point
Sets the highest temperature to which the customer can adjust the
Set Point
Probe offset adjustment – thermostat
This controller can work with or without an evaporator probe.
n = No evaporator probe, defrost will terminate on time.
Y = Evaporator probe present, defrost will terminate on
temperature.
Note: When P2P = n, there is no need to fit an evaporator probe
and the controller will not produce a P2 evaporator probe alarm
Probe offset adjustment – evaporator
Sets the time delay between the power to the controller being
turned on and any output relay starting to operate. This can be used
to prevent short cycling of the compressor following a momentary
power failure.
It can also be used to stagger the re-start of multiple units following
a power failure, to prevent everything trying to start at once and
blowing a fuse.
Sets the minimum time period between the stopping of the
compressor and it’s next possible restart
The controller has a thermostat override facility. This parameter
sets the override time during which the compressor will run
continuously irrespective of the temperature. Setting time to 0 to
disables this function
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “ON” time period
If a probe fault is detected the display will flash P1 and the
controller will automatically cycle the compressor on and off. This
parameter sets the “OFF” time period
Y = Probe
DISPLAY
CF Unit of
Measurement
rES Resolution
Sets the display to read out in Celsius or Fahrenheit
Prd Evap Probe
tdF Defrost Type
Shows current temperature of evaporator probe
Configures the controller for defrost by electrical heaters or hot gas.
If set for hot gas, the compressor is kept running during defrost
Sets the evaporator temperature at which the controller will
terminate the defrost. This temperature is sensed by the evaporator
probe ( if fitted )
Sets the interval time between the start of successive defrosts
Turns the decimal point on or off. This gives a display resolution of
either 1 degree or 0.1 degree Celsius.
DEFROST
dtE Defrost
Termination
Temperature
IdF Interval
Between defrosts
ndF Length
Of Defrost
Sets the maximum duration time of the defrost
- 34 -
-EL = Electrical
in = Hot Gas
- 50 ÷ 50 c
H
V
-EL
V
8c
1 ÷ 120 hours
V
6 hours
0 ÷ 255 mins.
V
30 mins.
Parameters – Prime Series XR60C - Continued
Use fold out programming flow chart inside rear cover
dFd Display
During Defrost
This tells the controller what to display during defrost.
rt = Actual temperature,
it = Temperature at start of defrost,
SEt = Set Point,
DEF = “DEF” label
dAd Max display
after Defrost
After defrost, the temperature as it was at commencement of
defrost is displayed. Normal display is resumed once the actual
temperature drops below this point or the time set in this parameter
has expired
Sets the period of time following the termination of a defrost during
which period nothing happens. This allows any residual moisture
on the evaporator time to drip down and drain away.
Tells the controller whether to do an immediate defrost when the
power is switched on or to wait for the normal interval time as set
in parameter IdF. Can be used to make sure defrosts are not missed
in areas with unreliable power supplies.
Sets the period of time following a thermostat override after which
the controller will go into a defrost. The controller will then resume
normal operation
Fdt Drip Time
dPO First Defrost
after start up
dAF Delay of
Defrost after fast
chill
rt
it
SEt
DEF
0 ÷ 255 mins.
H
it
H
30 mins.
0 ÷ 120 mins.
H
0
Y = Immediate
H
n
H
0∃ 0
Hours
C-n
o-n
C-Y
o-Y
V
o-n
0 ÷ 255 mins.
V
10 mins.
- 50 ÷ 50 c
V
2c
rE = Relative
Ab = Absolute
H
Ab
Set Point ÷
110 c
V
110 c
-50 c ÷ Set
Point
V
- 50 c
0 ÷ 255 mins.
H
15 mins.
0.0 ÷ 23∃5
hours
in 10 min steps
oP
CL
EAL
bAL
nPS
AUS
H
1∃30
hours
V
CL
V
bAL
0 ÷ 255 mins.
V
5 mins.
0
1
2÷15
H
0
n = After IdF
time
0 ÷ 23∃ 50
(in 10 min.
increments)
FANS
FnC Fan
Operating Mode
Fnd Fan Delay
FSt Fan Stop
Temperature
Defines how the evaporator fan relay operates.
C-n = The fan stops and starts with the compressor (but always off
during defrost )
o-n = The fan runs continuously ( but always off during defrost )
C-Y = The fan stops and starts with the compressor (fan stays on
during defrost )
o-Y = The fan runs continuously ( fan stays on during defrost )
Sets the time delay between the end of defrost and the evaporator
fans re-starting.
Sets the maximum temperature ( sensed by the evaporator probe )
above which the controller stops evaporator fans from running
ALARMS
ALC Alarm
Configuration
ALU Alarm
Level Upper
ALL Alarm
Limit Lower
Ald Alarm Delay
dAO Alarm
Delay at Start Up
i1P Digital input
polarity
i1F Digital input
function
did Digital input
delay
nPS Digital input
action
Configures the alarm either to absolute temperatures or
to be relative to the Set Point ( i.e. so many degrees
above & below Set Point ) If “Relative”, when the Set Point is
altered the alarm levels will follow it
Sets the high temperature alarm level. If ALC = rE it sets how
many degrees above Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the low temperature alarm level. If ALC = rE it sets how
many degrees below Set Point. If ALC = Ab it sets a fixed alarm
temperature.
Sets the time delay between a temperature alarm condition being
sensed and the alarm being signaled during normal operation.
Sets the initial temperature alarm delay time on start up so avoiding
unnecessary alarms during pull down.
The digital input can be activated by either opening or closing the
circuit. oP = Activate on opening, CL = activate on closing
Defines what action the controller will perform in the event that the
digital input is activated.
EAL = External alarm – display will flash “EA”
bAL = Action will depend on the setting of parameter nPS
dEF = Controller will start a defrost
AUS = Not enabled – no action
Sets the delay period between the sensing of a digital input and the
controller responding with it’s programmed action
If parameter i1F has been set to bAL, the controller will respond to
a digital input according to this parameter’s setting:0 = Door open – Fans & Compressor stop ( or liquid valve closes)
1 = Alarm – all relays will turn off after time set in parameter did
2 ÷ 15 = Pressure switch alarm: All relays turn off.
If the number of times the input is activated exceeds this value
within the time set in parameter did, the relays lock out. To re-set,
turn the power to the controller off & on
- 35 -
Dixell Controls - Adverse Condition Protection
In circumstances where a control could be influenced by other local electrical equipment or by an
erratic or spike prone mains supply, it may be prudent to take action to protect the control and
thereby the reliable operation of the system. Generally, these 'safeguards' are very inexpensive
and may in some situations be looked upon as standard procedure where there is any doubt about
the quality of the electrical supply or the effect of associated electrical equipment.
Noise Filter for Inductive coils -
part no. DIXL930
Inductive coils as fitted, for example, to solenoid valves or contactors can produce a back EMF
which can interfere with the control. This particularly relates to coils directly operated by the
control. To minimize the effect, a noise filter should be fitted in parallel, and as near as possible,
to the relevant coil as shown below.
Coil or
Contactor
Noise Filter for Mains supply -
DIXL930
Filter
part no. DIXL932
Almost all electrical supplies are influenced by the running of other electrical equipment and will
carry some 'noise' or transients. Most normal supplies are however acceptable but where the
supply is also used for large motors, fluorescent lights, etc., the fitting of a mains noise filter is
advisable. The filter should be fitted in series to the 240vac supply to the control or transformer.
The earth connection must be made otherwise the filter will not function.
DIXL932
Line Filter
230 volt
Controller
Transformer
DIXL932
Line Filter
12 volt
Controller
12 volt set up
230 volt set up
Varistor Voltage Spike suppressor
part no. CON210
Spikes of up to 35 times the normal line voltage are not uncommon and will often either damage
or influence any electronic control. When a poor quality supply is established or suspected, it is
practical to fit a spike suppressor in parallel with the 240vac supply to the transformer or, in the
case of 240v instruments, in parallel with the mains supply.
CON210
Transformer
12 volt
Controller
12 volt set up
230 volt
Controller
CON210
230 volt set up
- 36 -
Key Feature Check List
REFRIGERATION CONTROLLERS
Model
Supply
Voltage
Mount
(mm)
Defrost
Start
Defrost
End
Defrost
Type
Compressor
Relay
XR10C
230
-
-
-
XR20C
230
230
XR40C
230
XR60C
230
XR110C
12
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
-
Time
XR30C
-
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
-
XR110C
230
-
-
-
XR120C
12
230
XR130C
12
XR130D
230
XR140C
12
XR150C
12
XR160C
12
XR160D
230
XR162C
230
XR170C
12
XR170D
230
XR172C
230
XR530C
12
XR570C
12
XR572C
230
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Interval
Timer
Real
Time
Real
Time
Real
Time
Time
XR120C
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
DIN rail
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
Elec. or
Hg.
1 x 20A
( 8A )
1 x 20A
( 8A )
1 x 20A
( 8A )
1 x 20A
( 8A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 5A
( 2A )
1 x 16A
( 8A )
1 x 8A
( 3A )
1 x 5A
( 2A )
1 x 16A
( 8A )
1 x 8A
( 3A )
1 x 8A
( 3A )
1 x 16A
( 8A )
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
DIN rail
Panel
(32x74)
Panel
(32x74)
DIN rail
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Time
Time or
Temp
Temp
Time
Time
Time
Time or
Temp
Time or
Temp
Temp
Temp
Temp
Temp
Temp
Temp
Time
Temp
Temp
Defrost &
Evaporator
Fan Relays
-
Alarm
Buzzer
Alarm
Output
✖
-
✖
-
✖
12v
40mA
12v
40mA
Relay
1 x 8A
( 3A )
2 x 8A
( 3A )
-
✖
✖
✖
✖
✔
✖
-
✖
12v
40mA
-
✔
✖
-
✖
-
✔
12v
40mA
Relay
-
✔
Relay
1 x 8A
( 3A )
1 x 8A
( 3A )
2 x 8A
( 3A )
2 x 8A
( 3A )
2 x 8A
( 3A )
2 x 8A
( 3A )
2 x 5A
( 2A )
2 x 8A
( 3A )
-
✖
✖
✔
Relay
✔
✖
✔
✔
12v
40mA
12v
40mA
Relay
✔
Relay
✔
Relay
✔
Relay
2 x 8A
( 3A )
2 x 8A
( 3A )
✔
Relay
✔
Relay
✖
Relays - Ratings are resistive (inductive in brackets) Defrost – Elec. = Electric, Hg = Hot Gas
Continued:-
- 37 -
Key Feature Check List
TEMPERATURE (Heating / Cooling) CONTROLLERS
Model
XT110C
Supply
Voltage
12
XT111C
12
XT120C
12
XT121C
12
XT130C
12
XT131C
12
Mount
(mm)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Panel
(32x74)
Load Relay (s)
Alarm Buzzer
Alarm Output
1 x 8A
( 3A )
1 x 8A
( 3A )
2 x 8A
( 3A )
2 x 8A
( 3A )
2 x 8A
( 3A )
2 x 8A
( 3A )
✖
✖
✔
Relay
✖
✖
✔
Relay
✖
✖
✔
Relay
STEP CONTROLLERS
Model
XC440C
Supply
Voltage
12
XC440D
230
Mount
(mm)
Panel
(32x74)
DIN rail
XC460D
230
DIN rail
Number of
Stages
4 Step
6 Step
4 Step
Relays - Ratings are resistive (inductive in brackets)
- 38 -
Load
Relay(s)
4 x 5A
( 2A )
4 x 5A
( 2A )
6 x 5A
( 2A )
Alarm
Buzzer
✔
Alarm
Output
Relay
✔
Relay
✔
12v 40mA
Dixell
WARNING : These controllers are electrical devices. Under no circumstances should they be
opened. Electric shock can be serious or fatal
For further information please contact Thermofrost Cryo PLC.
A
London
Tel. 020 8655 7600
Fax. 020 8761 8081
Birmingham
Tel. 0121 666 4700
Fax. 0121 622 7268
www.thermofrostcryo.co.uk
Copyright Thermofrost Cryo PLC September 2000
- 39 -
THE PROGRAMMING FLOW CHART ON
THE NEXT PAGE IS FOR PRIME SERIES
ONLY.
READ IT IN CONJUNCTION WITH THE
PARAMETER LIST FOR YOUR PARTICULAR
MODEL
THIS CHART IS FOR DIXELL PRIME SERIES MODELS
THERE IS ANOTHER CHART INSIDE THE FRONT COVER FOR
ALL OTHER MODELS
- 40 -
PROGRAMMING FLOW CHART
ALL PRIME SERIES MODELS
(For all other models, see chart inside front cover)
Read Notes
Power On
IMPORTANT NOTES:
Visible Parameter Menu
Enter the Visible Parameter Menu by pressing the
buttons together for 3 seconds. The
SET &
display will then change and show the first
parameter label (HY)
Not every parameter will be present in every model
If no button is pressed for 15 seconds, the controller will revert to normal
display. Any alteration that have been made will be stored.
Note: Parameters in the Visible Menu can now be
accessed directly. Only go to Hidden Menu if you
need access to all parameters
Alarm Codes
DISPLAY FLASHING
EE
P1
Hidden Parameter Menu
From the Visible Menu, enter the
Hidden Parameter Menu by
buttons
pressing the SET &
again for a further
7 seconds. The display will
briefly flash “Pr2”, then show
the first parameter label (HY)
P2
HA
LA
EA
CA
PROBLEM
Data or memory corruption
Fault with thermostat probe or probe
wiring
Fault with evaporator probe or probe
wiring
High temperature alarm
Low temperature alarm
External alarm
Serious external alarm
Press any button to silence alarm
Note: All parameters can be now
be accessed
You are now in programming mode with
the first parameter’s label will being
displayed, which is normally “HY”
Press “SET” button to display setting.
Is the setting correct ?
Yes
Press “SET” to
view next
parameter label.
Press “SET”
again to view it’s
setting
No
Use
&
to
alter setting. Press
“SET” to store new
setting and move on
to next parameter’s
label. Press “SET” to
display it’s setting.
Have all the required parameters
now been set correctly ?
No
Yes
Wait 15 seconds
to “time out”.
Display will
revert to normal
temperature
display
- 41 -
Now set the SET POINT by pressing
“SET” button for 3 seconds until the
LED’s at the top of the display start
&
buttons
flashing. Use the
to alter setting. Press “SET” to store
the new setting.
Note: To insure all changes are
updated without delay, turn the
power off, then on again
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