Arctiko LMC260 User manual

Technical Manual
Controller for UPUL580
Controller type LMC260

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod. lamroN 41f a200 : 63 : 316002
Content
1Introduction...............................................................................................................................................................................................3
2Controlling................................................................................................................................................................................................4
2.1 Indicator LEDs ................................................................................................................................................................................4
2.2 Turn/Push button.............................................................................................................................................................................4
2.3 Main switch......................................................................................................................................................................................4
2.3.1 Menu selection........................................................................................................................................................................4
2.3.2 Settings menu..........................................................................................................................................................................4
2.3.3 Adjustment of settings...........................................................................................................................................................4
3Menuoverview.........................................................................................................................................................................................5
4 Operation description..............................................................................................................................................................................5
4.1 Operating mode and status............................................................................................................................................................5
4.2 Usage.................................................................................................................................................................................................6
4.2.1 Setup.........................................................................................................................................................................................6
4.2.2 Usage........................................................................................................................................................................................6
4.2.3 Run time monitor ...................................................................................................................................................................6
4.2.4 Manual mode ..........................................................................................................................................................................6
4.2.5 UserTest...................................................................................................................................................................................6
4.2.6 Calibration of sensor..............................................................................................................................................................7
5Installation.................................................................................................................................................................................................8
5.1 Connection .......................................................................................................................................................................................8
6Alarm.......................................................................................................................................................................................................10
6.1 Alarm list........................................................................................................................................................................................10
Alarm system...............................................................................................................................................................................................11
6.2 Explanation of Alarms .................................................................................................................................................................11
6.3 Reset alarms ...................................................................................................................................................................................11
6.4 CTS Signal .....................................................................................................................................................................................11
7Technicaldata.........................................................................................................................................................................................12
7.1 Authority approval........................................................................................................................................................................12
7.2 Supply and surroundings..............................................................................................................................................................12
7.3 In- and output specifications.......................................................................................................................................................13
7.4 Screw terminals .............................................................................................................................................................................13
7.5 NTC Temperature sensor table (for freezer) ............................................................................................................................14

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa300:63:316002
1 Introduction
LMC 260 contains a complete controller for an Ultra Low Freezer capable of cooling down to -85°C.
Functions:
•Controlling of the temperature in the freezer
•Supervision of the freezer temperature
•Supervision of the ambient temperature
•Connection to CTS
•Audio and visual alarm
•Battery mode
•Emergency function. Constant compressor run without any temperature regulation
•

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
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2Controlling
2.1 Indicator LEDs
The LMC 260 has two LEDs at the left side of the display. They light up as described below:
OFF Green Red Green flash Red flash
Upper LED -- Power OK -- -- --
Lower LED -- -- -- -- Alarm
The display backlight is always swithced on unless the controller is in battery mode. In battery mode the backlight will be
switched on when the button has been pressed or turned. It will then be turned off after approx. 20 seconds. If the turn/push
button has not been activated for 5 minutes the main menu will be shown. Active alarms will result in flashing lower LED
and backlight. Inactive alarm will only make the lower LED flash.
2.2 Turn/Push button
The LMC 260 control panel is controlled by turning / pushing the button at the right hand side of the display. The button has
three functions:
1. Turn CW : Next Menu or increase set value
2. Turn CCW : Previous Menu or decrease set value
3. Push : Select Menu and accept edited set value
2.3 Main switch
The LMC 260 control panel has a main switch. It is located at the left hand side of the display and has two functions:
1. Up : The freezer is in Standby Mode. Works like an OFF function but the temperature readout is active.
2. Down : The freezer is in Auto Mode. Works like a normal ON switch, where the controller controls the
freezers temperature, the CTS signal and alarm system.
2.3.1 Menu selection
The menu can be changed by turning the turn/push button. The menus shown with an arrow in the lower righthand corner,
have sub menus. The submenu is activated by pressing the button once. When turning the button the submenu items appear.
Pressing on the item “Menu Up” exits the submenu.
2.3.2 Settings menu
Part of the menu system is normally invisible for the user as it is only used by authorized personnel during installation or
service. This part of the menu can be activated by entering the correct code (344) in the settings menu.
2.3.3 Adjustment of settings
Turn the button until the required parameter value is shown in the display. Press once to edit the value. It will now flash. Turn
the button to adjust the parameter. Press the button to accept the value or cancel it be not pressing the button for 5 seconds.

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa500:63:316002
3Menuoverview
The Menu stucture is shown in Appendix A.
4Operationdescription
4.1 Operating mode and status
The user selects the operating mode of the system with the switch at the left side of the display:
Operation Description
STANDBY The temperature in the freezer is shown but there is no regulation/control
AUTO The LMC260controls the temperature in the freezer
The actual status of system is shown in upper line of the main menu:
Status Desription
STANDBY Freezer is turned off. No active functions except the actual freezer temerature
FREEZER Normal mode. Temperature regulation is active.
TEST User test active
T1 OPEN Temperature sensor for the freezer is open
T1 SHORT Temperature sensor for the freezer is closed
T2 OPEN Temperature sensor for the room is open
PWR FAIL There is no mains on and the main switch is in auto mode
DOOR Door is open
ROOM TEMP Room temperature too high
T LOW The freezer temperature is too low
T HIGH The freezer temperature is too high

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
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4.2 Usage
4.2.1 Setup
The freezer must be set up by an authorized person. In the settings menu the correct code must be entered so that the items
below become visible .
1. SETPOINT : The temperature that the controller is set to achieve [SetPoint]
2. T DIFF : The difference between the SetPoint and the temperature that causes the fan and
compressor to restart
3. ALARM LO : SetPoint – [value] set off Alarm Lo
4. ALARM HI : SetPoint + [value] set off Alarm Hi
5. AL.DELAY : Delay before Alarm Hi/Lo is activated
6. MAX ROOM : Maximum room temperature before room temp alarm is given
7. CPRTIMER : Minimum time between each compressor startup
8. CHANGE CODE : Change the access code
4.2.2 Usage
When the freezer has been setup and the freezer is in auto mode, it will operate in accordance with these settings. When
settings are changed the freezer will use the new settings immideatly after.
The controller will now try to cool the freezer to the SetPoint. When this is reached the fan and compressor will stop. When
the freezer temperature rises above SetPoint - TDiff they will start up again.
Please note that the fan will run 15 seconds before and after the compressor.
4.2.3 Run time monitor
A person with the correct access code will be able to monit or the run time of the fan and compressor in the Service Menu.
4.2.4 Manual mode
A person with the correct access code will be able to operate the controller manually. Select MODE->MANUA L to put the
freezer into manual mode. From SERVICE->MANUAL->[Menu] the operator is now able to turn on/off the compressor, fan,
light, CTS, Battery Charge and Buzzer.
IMPOTANT: When manual control is finished the operator must select MODE->AUTO again to cancel manual mode.
There are no regulation or safety features of any kind active in manual mode. Please note that this mode is only for service
and trouble shooting.
THE CONTROLLER WILL NOT GO BACK TO AUTO BY IT SELF
4.2.5 UserTest
There is a user test for testing the room temperature sensor, door sensor and buzzer in the controller. The test can only be
activated if the controller is in Auto Mode and there are no alarms. Pressing and holding the turn / push button for more than
10 seconds will activate the test. All answers to the questions must be YES or NO.
1. ROOM OK? - The lower line shows the room temperature as the controller sees it.
The operator must estimate if the temperature shown is correct.
2. OPEN DOOR - Open the door and press YES .
3. CLOSE DOOR - Close the door and press YES.
4. SOUND ON - If the buzzer is on press YES, if not press NO.
The test is finished with ”TEST PASSED” in the display if no faults were found. Otherwise ”TEST FAILED” will appear in
the display and the alarm log will be updated with the test result. The entrys in the error log will be:
1. NO SOUND - No sound in the buzzer
2. D.SENSOR - Door sensor failed during the test
3. T.SENSOR - Room temperature sensor failed during the test

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
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4.2.6 Calibration of sensor
The temperature sensor of the freezer can be calibrated. Before this the temperature must be stable. Therefore this menu item
is not active until the freezer has settled on the SetPoint for one hour as a minimum.
Below is a description of the calibration procedure:
Enter a calibration value in SETTINGS -> CALI. This value represents the offset from the SetPoint. The LMC260 now
controls the freezer according to SetPoint +/- this value.
Example :
SetPoint is adjusted to – 70 °C. The reference thermometer indicates – 72 °C. To correct this enter -2 °C and the freezer will
cool down to -72 °C. The LMC260 will now operate with the new correct value.
Resetting this value to the factory setting is done by setting the CALI value to 0 °C.

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa800:63:316002
5Installation
5.1 Connection
See wirring diagram for connection diagram.
65
M
Mcond
78
Run capacitor and Stop capacitor
Trafo 230V/12V, 25W
[Blue] [Black]
1 5
Buzzer
2
X1
Compressor
21 43
X2
Digital input
Mcpr
M
2 pcs 12V 10W
2
1 43
X3
6
578
2
1 43
X4
65 78
21 43
X5
X9
X8
X7
X6
1123465 123465 1 2
R4 R5 R6 R72R3R
R1
D1 D3 T1 T2
Temperatur input
Display and MMI interface With switch, display and led's
Valve Heater Mcond
[Black] [Y/Gr]
[Blue]
LMC260
[Brown]
Y/Gr [Blue]
Door Frame Heater
X11
9 ways Dsub male
3 2 1 5 4
RS232C
6 7 8 9
[Blue] [Y/Gr] [Brown] [Blue] [Brown]
[White] [White]
[Y/Gr]
X22
+
1,1 6,1
[Blue] [Brown]
10
7
[Y/Gr]
1
TP2
X23
6,4 1,4
Battery 12V
SW1
2B 2 2A
1B 1 1A
Terminal view
1
X10 X22
TR1
[Black]
[Black/White]
[Yellow] [Green]
[Brown] [White]
[Black]
[Black] [Yellow]
CTS
1 2
3 4
X21
12 V Battery Charger
-12V +12V
240 VAC
240 VAC
[Brown] [Blue] [Blue] [Black] [Yellow] [Green]
POWER IN 230 Vac
L
N
X20
Earth
Chassis tab
[Red]
[Red]
[Blue]
[Black]
2A 1B
( Standby position shown )
2
1A
[Grey]
SW1
1
2B
21 3
X21
1234
Outside view
[Brown]
[White]
Door sensor
Temperature room (optional)
Temperature freezer
Top view
1,1 1,4 6,1 6,4
Terminal numbers
+5V
X24
OPT1
X25
[Yellow] [Green] [White]
This end
towards front
[Red]
[Black]
ThermoFuse
R2 10K
D1 1N4007
R1
15K
Fuse

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
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Type Switch Terminal Name Connection
1, 2 DI1 Main switch
3, 4 DI2 Power Sense
5, 6 DI3 Door sensor
Digital Input X2
7, 8 DI4
1, 2 T1 Temperature in the freezer
3, 4 T2 Temperature in the room
5, 6 T3
Temperature sensor X3
7, 8 T4
124VVoltage Output
25V
Analog Input 3, 4 AI
5, 6 AO1 Buzzer [Piezo]Analog Output
X4
7, 8 AO2
6, 5 R1 Compressor
4, 3 R2 Fan
X8
2, 1 R3 Light
6, 5 R4 CTS
Relay Output
X7
2, 1 R6 Battery Charge
X5 1..4 COM1 RS 485Communi c ation
X12 1..10 COM2 RS 232
X11 1..10 ISP For Software updatingSystem
X13 1..20 OPTION Expansion connector
X1 1 -- EarthSupply
X9 2, 1 230 230 V AC

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa0100:63:316002
6Alarm
6.1 Alarm list
Alarm no. Alarm Alarm text display Type Limit Sound
XC°09-CNEPO1TnepO1T01LA
AL11 T1 Short T1 SHORT C XC°941
XC°09-CNEPO2TnepO2T21LA
AL30 Power Fail X-CFFOSNIAM
AL31 Door open DOOR C Xnim51>neeporooD
AL32 TRoom ROOMTEMP C Room temp erature too high X
AL33 TLow T LOW C Freezer temp erature too lo w X
AL34 Thigh T HIGH C Freezer temp erature too high X
AL40 Room Sensor T.SENSOR W
AL41 Door Sensor D.SENSOR W
AL42 No Sound in
Test
NO SOUND W
AL02 SW error SOFTWARE C
AL04 Initialisering INIT W
AL05 Database DATABASE W
AL06 Watchdog WATCHDOG W

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa1100:63:316002
Alarm system
A complete overview of alarms is in the section "Alarm list" on page 10.
The upper LED will flash when there is an alarm. The operation status will change to "ALARM". In the sub menu "View" the
reason for the alarm and the alarm code can be read. The alarm will change from actve to inactive when the reason for the
alarm has been removed.
After entering the access code the “Alarm Menu” can be activated. Acknowledge an alarm by pushing the Turn / Push Button
when the alarm is shown to delete the alarm from the list. Active alarms cannot be acknowledged. See 6.3
There are 2 alarm levels :
WARNING: When the user test is faulty in one or more tests
CRITICAL: The LMC260 continues to control the temperature in the freezer, however CTS and audial alarm are
active
In the “ALARM LOG” sub menu the last 15 alarms can be read.
If the mains voltage is interrupted the mains voltage will be checked continously.
6.2 Explanation of Alarms
AL10 – T1 OPEN : Temperature sensor to freezer interrupted
AL11 – T1 SHORT : Temperature sensor to freezer short circuited
AL12 – T2 OPEN : Temperature sensor to room interrupted
AL30 – MAINS OFF : No mails supply to the freezer
AL31 – DOOR : Dor was open for more than 5 minutes
AL32 – ROOMTEMP : Roo m temperature too high
AL33 – T LOW : Freezer temperature too low for more time than alarm delay
AL34 – T HIGH : Freezer temperature too low for more time than alarm delay
AL40 – T.SENSOR : User test fault at room temperature sensor
AL41 – D.SENSOR : User test fault at door sensor
AL42 – NO SOUND : User test fault at buzzer
6.3 Reset alarms
To reset an alarm
Go to “Settings” press the button.
Go to “Enter code” press the button.
Turn the code (default 344) press the button.
Go to “Menu up” press the button.
Go to “Alarm” press the button.
Now you can see the alarms press the button. To accept/reset the alarm (s)
6.4 CTS Signal
The controller gives at potential free signal when an alarm occurs. The contact is closed doing
normal operation and open doing alarm. It is not possible to get the alarm as closed contact.
To get the signal out of the controller simply connect to the two terminals located on the back
side of the controller.

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa2100:63:316002
7Technicaldata
7.1 Authority approval
•IEC 60335-2 (high-voltage current regulations)
•CE marked according to light industry and domicile EN61000-6-1
•CE marked according to light industry and domicile EN61000-6-3
•LVD low power directions
7.2 Supply and surroundings
•Supply voltage: 230VAC ±10%, 50Hz ±5% og 60Hz ±5%
•Ambient temperature operation for control: 0 to 50 °C
•Ambient temperature keeping: - 20 til 70 °C
•Relative humidity max. 95%, non-condensing
•LMC 260 density IP 20

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa3100:63:316002
7.3 In- and output specifications
Nane Amount Description Specifikation
T1 – T 4 4 Temperatureinput for
NTC sensor
Measuring range: -10°C to -90°C
Accuracy non-calibrated: -85 to -50 +/- 2,65 °C
-50 to -10 +/- 2,15 °C
2 terminals per input
•Signal
•Frame
AI1 1 Analog Input
Voltage
0-10V
Rin : 25 k O
AO1-2 2 Analog Output 0-5V/20mA
DI1-DI4 4 Digital Input Pull-up to +5VDC through 10kΩ
2 terminals per Input
•Signal
•Frame
R1-R7 7 Relay Output 13A/250VAC AC1
10A/30VDC
500VA at inductive load
2 terminals per outlet
COM1 1 RS485 communication RS485, half duplex, Max.100 meter twisted cable
Max termination: 2*120 O
Receipt impedans >=12 kOh m
4terminals:
•+12V ±10% (I-limit ca. 100mA)
•Frame
•A
•/B
4 pol terminals
COM2 1 RS232 pc/modem RS232, 5 input, 3 output. Max. baud 9600
Implementation on UART1
Terminal: 10-pole pinheader
ISP 1 Plug for SW updating 10-pole pinheader
OPTION 1 Option plug 20-pole pinheader
MMI 1 Operation Control print and operation connection by a 20 pole flat cable
7.4 Screw terminals
Conductive type mm2
Fle xible with crimps 0,25 - 2,5
5,2-2,0spmirctuohtiwelbixelF
2conductorswiththesamecrosssectioninthecrimpswithoutflange 0,25 - 0,75
2 conductors with the same cross section in twin crimps with flange 0,5 - 1,5
5,1-2,0noitcesssorcemasehthtiwsrotcudnoc2
0,4-2,0pmirC

Ultra Low Freezer UPUL580 / LMC 260 ver 1.00
-90-70tod.lamroN 41fa4100:63:316002
7.5 NTC Temperature sensor table (for freezer)
Resis tance in Ohm
Temperature in Celsius degrees
°C + 0 °C + 2 °C + 4 °C + 6 °C + 8 °C
-80 13800
-70 7763 8782 9832 11008 12137
-60 4482 4810 5536 5944 6823
-50 2597 2830 3186 3568 3862
-40 1604 1812 1989 2202 2400
-30 1016 1119 1223 1334 1447
-20 673 731 793 857 930
-10 467 487 533 571 620