KELD KLTX3 Specification And Operating Instructions - page 2
Display Messages
In normal operation the probe temperature selected by P5 will be displayed.
The following messages can also appear :
- Err
Memory reading error.
- ErP1, ErP2, ErP3
Probe1 , 2 or 3 error
- Eri Internal parameter error. In this case, enter the standard configuration,
as it is indicated in “To record a standard configuration”.
- ALH
High temperature alarm.
- ALL
Low temperature alarm.
- ALE
External alarm.
- AEH
High temperature and external alarm.
- AEL
Low temperature and external alarm.
- ooo Open probe.
- - - - Short-circuited probe.
- DON Defrosting activated.
- DOF Defrosting de-activated or cannot be done.
- CON Continuous cold cycle activated.
- COF Continuous cold cycle de-activated or cannot be done.
- -d-
Thermostat on defrosting.
To view the probe not chosen by P5, press SET+UP
The display blinks when there is an error recording a parameter in memory or
when awaiting confirmation of a value.
Operation in Error Case
If the ambient probe fails, the thermostat will connect the compressor
according to parameters c2 and c3, being able to perform defrosting and
continuous cold cycles.
If the memory fails the thermostat will connect the compressor ON for 5
minutes and OFF for 5 minutes, not being able to perform defrosting or
continuous cold cycles.
Buzzer Operation
If there is a memory error, probe error, temperature alarm (high or low),
external alarm or door open alarm, the internal buzzer sounds.
The buzzer can be muted pressing any key.
Two Compressors Operation
In this case, when the thermostat demands cold (Sd1 >= Set+r0) the first
compressor to be connected is the compressor with less running hours, and
after c6 seconds, the second compressor is also connected. When the
thermostat begins to cool, and Sd1 compressor stops, and the first one continues. The second will be stopped when Sd1 Set+r0, the second compressor starts running again. HACCP If this option is activated, the thermostat registers up to 5 alarms of the types Hight, Low, and blackout. These alarms can be seen in the menu Registry of Alarms (HAC). To acced to this menu, proceed as for the parameters menu. The first value that appears is the number of registered alarms. Afterwards, for each alarm (if it has existed), the value of the temperature and the time of the alarm. For the disconnection alarm, the temperature when returning the connection is registered, as well as the time until the correct values are reached. (Probe When the elapsed time is showed it will appear xxd (days).Pressing UP xxH (Hours) will be shown, and pressing UP again, xxn (Minutes) will be displayed. When located over a temperature of alarm or time, pressing UP+DOWN during 2 seconds, both recorded data of the alarm (time and temperature value) are deleted. In the Ald menu, and pressing UP+DOWN keys during 2 seconds, all the recorded data of alarms are deleted. Front Operation Set Point Setup - Press key SET. The Set label appears. - Press SET again. Current set point value appears blinking. - Press UP or DOWN to increase or decrease the value. - Press SET to confirm the new value. - Press SET and DOWN to exit Time programming - Press key SET. The Set label appears. - Press UP or DOWN to go to Hour or Minute - Press SET to see the value. - With UP and DOWN set the desired new value. - Press SET for 8 seconds, Pro will appear on the display once the time has been correctly programmed - Press SET + DOWN to quit or wait for 1 minute (keyboard timeout). Parameter programming - The parameters are grouped in the menus COM, DEF, PRO, ALA, INI - Press SET for 8 seconds. Value 00 appears blinking. - Set the code with UP and DOWN (it is set to 00 from factory). - Press SET to confirm the code. If it is right, the label of the first menu will appear. - With UP and DOWN go to the desired menu. - Press SET, the label of the first parameter of menu will appear. - With UP and DOWN go to the desired parameter label of the list of parameters. - Press SET to see the value. - With UP and DOWN set the desired new value. - Press SET to confirm it and exit to the parameter label. -Press SET + DOWN to go to menu list. -Press SET + DOWN to quit programming or wait 1 minute (keyboard timeout). To record a standard configuration - Access to parameter H0 as explained in Parameter programming. - Choose desired configuration. For series KLT13I-Dx: H0 is set to 0 For series KLT23I-Dx: H0 is set to 1 For series KLT33I-Dx: H0 is set to 2 For series KLT33I-Dx: H0 is set to 3 - Press SET for 8 seconds, and the thermostat will be reset. -Press SET + DOWN to quit or wait for 1 minute (keyboard timeout). Manual Defrost. Pressing UP key for 8 seconds defrost is activated. Repeating the operation is deactivated. Continuous cold cycle. Pressing DOWN key for 8 seconds a continuous cold cycle begins. Repeating the operation the cycle finalizes. Setting keyboard code to zero The keyboard code can be programmed to zero by turning off the controller, and turning it on again, while the key SET is pressed. Alarm validation An active alarm can be validated (the alarm output will be turned off) pressing the SET and DOWN keys simultaneously. Led Indications Out: It indicates Compressor connected. It blinks when a continuous cold cycle has to be initiated and has to wait until the minimum compressor stoppage time is over. Def: It indicates defrosting is activated. Fan: It indicates ventilator is connected. Alarm: It indicates an error or alarm. It blinks when the alarm is validated by the user ON OFF Thermostat Pressing the keys SET+DOWN for 8 seconds the thermostat will turn-on or turn-off If we have a relay setup as light, pressing keys UP+DOWN for 3 seconds the thermostat will turn-on or turn-off the light The cycles of defrosting can be performed counting total time (d14= rt) or counting the time only when the compressor is connected (d14= ct). When (d14= rt) and (d8 24.0 ) First defrosting of day is made at the hour d3 And the others with the cycle given by d8. When (d14= ct) or (d8 24.0 ) the cycle is only performed by d8 . Hour/Minutes Parameters H-M It is a way to show hours and minutes in 3 digits The two first digits are the hours and the third the tens of minutes. E.g. 2.4 2 hours 40 minutes 8.0 8 hours 0 minutes 10.3 10 hours 30 minutes COMPRESSOR c2 = ON time of fault cycle, when ambient probe is broken c3 = OFF time of fault cycle, when ambient probe is broken Minimum time between two connections of the compressor ON OFF Light Defrosting Cycles < >= Parameter description (CON) SET = Work set point. Temperature we wish to maintain the machine. Variable between r1 and r2. r0 = Differential. When ambient probe temperature >= Set+r0 Compressor ON When ambient probe temperature <= Set Compressor OFF r6 = Fan operation on regulation. Off = Fan does not connect on regulation. On = Fan is always connected on regulation. Con= Fan linked to compressor start-up. (Fan ON if allowed by the temperature given by F0) F0 = Fan temperature limit. Direct mode. Relay selected as FAN Fan OFF on regulation when probe temperature setup in d12 is >= F0. Fan ON on regulation, when temperature is =< F0 - A0. Reverse mode. Relay selected as FAI Fan OFF on regulation when probe temperature setup in d12 is < F0. Fan ON on regulation, when temperature is >= F0 + A0. F1 = Stop compressor and Fan if door opened. No = The fan and compressor do not stop on regulation and continuous cycle when opening the door. Yes = The fan and compressor stop on regulation and continuous cycle when opening the door. Con = The compressor stop but the fan do not stop on regulation and continuous cycle when opening the door. Fan = The fan stop but the compressor do not stop on regulation and continuous cycle when opening the door. c0 = Minimum compressor stop time Minimum time since compressor stops until it is starts again. c1 = Continuous cycle time. Duration of a continuous cold cycle. c4 = Minimum time of working of the compressor Minimum time since compressor starts until it stops. c5 = Minimum time since compressor starts until it starts again. c6 = Delay Time 2 Compressor Time since compressor 1 is connected until compressor 2 is connected, if it is necessary to connect it and if H9=Con List of parameters Con Description Units Range Factory Set Set point Degrees r1 to r2 3.0 r0 Differential or hysteresis Degrees 0,1 to 20 1.0 r1 Minimum value for set point Degrees -99,9 to r2 -50.0 r2 Maximum value for set point Degrees r1 to 302 150 r6 Fan operation Range off /on /con con F0 Fan stoppage temperature Degrees -99.9 to 302 28.0 F1 Stop compressor & Fan with Option no/yes/Con/Fan yes door open c0 Minimum compressor stoppage time Minutes 0 to 240 1 c1 Continuous cycle time h - m 0.0 to 18 1.0 c2 ON time of fault cycle Minutes 0 to 999 5 c3 OFF time of fault cycle Minutes 0 to 999 5 c4 Minimum ON time of the compressor Minutes 0 to 240 0 c5 Minimum time between two Minutes 0 to 240 1 connections of the compressor c6 Delay time for second compressor Seconds 0 to 999 30 dEF Description Units Range Factory d0 Cold / Heat mode (KLT13) Range re /in re d0 Type of defrosting (KLT23, 33 & 43) Range re /in re d1 Temperature at which defrosting Degrees -99.9 to 302 80.0 will stop d2 Maximum defrosting time Minutes 0 to 240 30 d3 First Hour of Day for Defrosting h-m 00,0 to 18,0 00.0 d4 Delay of first defrosting Minutes 0 to 999 0 d5 Display on defrosting Range off/on/-d- -d- d6 Display return limit. Minutes 0 to 240 15 d7 Compressor drip time. Minutes 0 to 240 0 d8 Interval between defrosting. h - m 00,0 to 99,0 8.0 d9 Fan works on defrosting. Range no/yes no d10 Fan drip time Minutes 0 to 240 0 d11 Minimum Defrosting time Minutes 0 to 240 0 d12 Fan/defrosting control probe Range sd1/sd2/sd3 sd2 d14 Units to count the defrosting cycle Option rt / ct rt Pro Description Units Range Factory P0 Temperature scale Option ºC/ºF ºC P1 Ambient probe 1 calibration Degrees -20,0 to 20,0 0.0 P2 Defrosting probe 2 calibration Degrees -20,0 to 20,0 0.0 P3 Product probe 3 calibration Degrees -20,0 to 20,0 0.0 P4 Decimal point Option no/yes no P5 Probe to display Range sd1/sd2/sd3 sd1 P6 Probe 2 present Option no/yes yes P7 Probe 3 present Option no/yes no ALA Description Units Range Factory A0 Fan and alarm differential Degrees 0.1 to 20.0 4.0 A1 Maximum alarm temperature Degrees 0.1 to 99.9 8.0 A2 Minimum alarm temperature Degrees 0.1 to 99.9 8.0 A3 Time validation open door or Minutes 0 to 999 11 external alarm A4 Time without alarm after defrosting h - m 0.0 to 18.0 1.1 A5 Time without alarm after h - m 0.0 to 18.0 1.1 opening the door A6 Time without alarm h - m 0.0 to 18.0 1.1 after connection A7 Alarm verification time h - m 0.0 to 18.0 1.1 A8 Probe for alarm Range sd1/sd2/sd3 sd1 Ini Description Units Range Factory Hor Hour Hours 0 to 23 0 Min Minutes Minutes 0 to59 0 E0 Configure digital input Range off/Al/In/def/ndf def H0 Factory Settings Range 0 to 3 H1 Master/Slave Range Mst/Slv Mst H2 Keypad protection Option no/yes no H3 Delay time on connecting Seconds 0 to 240 0 H4 Address for serial communication Numeric 0 to 999 0 H5 Keyboard code Numeric 0 to 999 0 H6 Type of probe Option ptc / ntc ptc H7 Relay 2 Setup Option Lit/FAn/ALA/dEF/FAI dEF H8 Relay 3 Setup Option Lit/FAn/ALA/dEF/FAI FAn H9 Relay 4 Setup Option Lit/FAn/ALA/dEF/Con Con H10 HACCP Activated Option no/yes no HdE Next defrost Time Hours (only read) MdE Next defrost Time Minutes (only read) SLINK In this input we can connect a programming key to read or to write the parameters. We can also connect a clock module so that the hour of the thermostat goes with a realtime clock. If we manage the system with a PC we can connect it to the thermostat through this input with a communication module.