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Product Manual, Issue 6

CMS200

www.nexo.com

Page 32

3.7

Viewing the last three cooler faults witnessed by the controller

It is possible to view the last three faults (FLt) and understand problems that have occurred with the cooler.

Step

Action

Display

1

Press the Set button

2

The display shows:

3

Enter the appropriate password to access the main menu

4

The display shows:

5

Press the Down button and scroll to FLt

6

The display shows:

7

Press the Set button to select

The controller displays the last three faults witnessed

The last three faults, or alarms, to occur are displayed for example:

A condenser high temperature alarm has occurred

An appliance sensor alarm has occurred

A Condenser Sensor alarm has occurred

Note

The alarms may have been cleared, or cancelled, by the retail outlet operators pressing

the Down button.

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Содержание Nexo CMS200

Страница 1: ...CMS200 PRODUCTMANUAL Issue 6 ...

Страница 2: ...2017 All Rights Reserved All information in this document is property of Elstat Ltd Commercial use and distribution of the contents of this publication is not allowed without express and prior written consent of Elstat Ltd ...

Страница 3: ... 3 USER GUIDE 3 1 Power up sequence 21 3 2 Function buttons 21 3 3 SubZero Firmware menus 22 3 4 The menu arrangement 23 3 5 Menu access 24 3 6 Test routines 24 3 7 Viewing the last three cooler faults witnessed by the controller 32 3 8 Half reset 33 3 9 Viewing statistics 35 4 ALARMS AND TROUBLESHOOTING 4 1 Limp home functionality 37 4 2 Door open alarms 37 4 3 Door alarms Limp home mode 38 4 4 T...

Страница 4: ...41 5 5 Condenser Sensor Alarms 42 5 6 Evaporator Sensor Alarms 42 5 7 Freeze up protection 888 42 5 8 Condenser high temperature Ht alarms 42 5 9 Other Problems 43 6 PARAMETER REFERENCE 6 1 Parameters by function 45 6 2 Parameter validation 46 6 3 Parameters definition 46 7 APPROVALS 7 1 Product Approvals 61 7 2 Bluetooth Approvals 62 8 GLOSSARY OF TERMS 8 1 Acronyms 63 8 2 Controller and accessor...

Страница 5: ...witch inputs CDM is powered by a 12VDC supply from the power supply module and it provides the following functionality Feature Description User and diagnostic information 3 digit 7 segment display that displays the product temperature and other information such as defrost and alarm conditions Push buttons enable the end users to cancel alarms and service technicians to run test routines Product te...

Страница 6: ...it can see activity Item LED Indicator Function 1 Compressor On when the compressor is running 2 Evaporator fan On when evaporator fan is running 3 Saving temperature disable On if the saving mode temperature is disabled The controller maintains the Ready mode temperature at all times 4 Motion On when motion is detected Item Push Button Name Function 5 Set Accept forward selects menu options and p...

Страница 7: ...0 mm 100 mm 111 mm 50 mm 1 1 2 CDM Mounting The control display module is designed for panel mounting and is secured using the fitted clips The aperture dimensions are as shown To mount the control display module simply push in the unit into the aperture till it clicks into place Check that the control display module is held firmly in position 72 mm 122 mm ...

Страница 8: ...ower supply module PSM contains the power supply for the control unit and the relays to switch the following cooler components Feature Description Compressor relay Switches the compressor to manage the temperature of the refrigeration compartment Evaporator fan relay Switches the evaporator fan to minimize heat transfer to products when the compressor is not running Auxiliary relay Switches a defr...

Страница 9: ...ecting to the compressor lights evaporator fan and defrost heaters or valves Interface cable that connects to the control display module The power supply module must be mounted vertically with the cables exiting vertically downwards The power supply module has an Ingress Protection IP rating of IPX5 which means the power supply module is protected against water jets Note The power supply module mu...

Страница 10: ...n to the power supply module a drip loop must be formed in all wiring Cable routing looms must not be secured to hot pipes or vibrating components Secure cable routing looms with clips where ever possible 1 High voltage connection cable six way 2 Interface cable PSM CDM 3 Drip loop Note The Water Ingress Protection ratings IP ratings are only valid when the product is mounted in the recommended or...

Страница 11: ... Neutral Blue 5 Lights White 6 Compressor Red 1 2 4 Wiring diagram A Interface cable H Control display module Q Door switch B Lights I RMD R Motion sensor C Evaporator fan J Evaporator sensor S Display D Defrost heater K Condenser sensor T RJ45 Port E Compressor L Live V Modem interface F Power supply module N Neutral W Stock product sensor G 6 Way connector P Appliance sensor ...

Страница 12: ...ater or a solenoid valve for hot gas defrosts Note This controller is designed for integration into 3rd party equipment only and should be installed according to these instructions and all relevant local electrical and safety standards 1 4 Temperature input ranges Sensor Input range ºC Input range ºF Appliance sensor 15ºC to 50 0ºC 0 5ºC 5ºF to 122ºF 1ºF Condenser sensor 50ºC to 125ºC 5 0ºC 122ºF ...

Страница 13: ...r use in Class I or Class II appliances Class II SELV electronic control Software Class Class A Class A Limitation of operating control Continuous Continuous Action Type 1B Type 1B Control pollution degree Degree 2 Degree 2 Rated impulse voltage Loads 2 5KV Control 330V SELV Loads 2 5KV Control 330V SELV Temperature ball pressure test 160ºC PCB 125ºC Enclosure 160ºC PCB 125ºC Enclosure 75ºC front ...

Страница 14: ...Product Manual Issue 6 CMS200 www nexo com Page 14 ...

Страница 15: ...e only sensors supplied by Elstat should be used The NTC thermistor is rated from 35ºC to 125ºC 31ºF to 257ºF 2 1 1 Appliance sensor The appliance sensor measures air temperature of the refrigerated compartment by measuring the return air temperature The diagram shows the recommended position of the appliance sensor The appliance sensor measures the air temperature after the air has been drawn ove...

Страница 16: ...temperature when the condenser is approximately 75 blocked The temperature is then set as the value of the condenser high temperature Ht parameter Ensure that the condenser sensor is fixed using a metal pipe clip 1 or foil tape 2 as shown Elstat can supply pipe clips for 6 8 mm and 8 10 mm pipes A B C D E A Condenser hot gas pipe Condenser inlet pipe B Condenser C Compressor D Liquid pipe Condense...

Страница 17: ...o defrost Note Do not use cable ties The head of the sensor is fragile and can be easily damaged Using cable ties to secure the sensor head or sensor cable invalidates the warranty 2 2 Door switch Door switches are used to detect door openings They are SELV safety extra low voltage components that are able to create an open and closed circuit The Elstat enhanced door switch and activator are over ...

Страница 18: ...easured when the door is closed and the gap z dimension is correct Y Vertical 0mm 0in 10mm 0 4in Measured when the door is closed and the gap z dimension is correct Z Gap 0mm 0in to 5mm 0 2in 2mm 0 07in The diagram below shows the horizontal vertical and gap alignment between the door switch and the activator for open and closed doors Z X Y To mount door switches on double door coolers two door sw...

Страница 19: ...red location of the motion sensor is in the upper section or in header panel of the cooler to ensure the best motion detection and to lower the risk of the motion sensor being blocked by objects such as packages For the controllers without integrated motion sensor a remote motion sensor can be used The remote motion sensor head is supplied detached from the cable to allow the cable to be easily ro...

Страница 20: ...e is required 55 mm 30 mm 65 mm 15 mm The motion sensor head must be fixed using counter sunk screws or bolts with the following characteristics Head countersunk maximum diameter 6 0mm 0 24in Thread maximum diameter 4 0mm 0 16in The screws must be tightened to a maximum torque of 0 5Nm 0 37lbfft Overall dimensions of the motion sensor Dimensions of the mounting holes 25 mm 41 mm 5 435 mm 48 5 mm 8...

Страница 21: ...tions and parameters Use as part of the controller password Selects menu options Selects parameters for change Use in the test routine Defrost Activates a manual defrost only applicable if controller is set to timed defrost and temp is below termination temp Use as part of the controller password Use to de select menu options return Use in the test routine Up Scrolls up menus Increases parameter v...

Страница 22: ...Displays the parameters and the parameter values Test routine Enters the test routine that tests the relays temperature sensors door switch and motion sensor Faults Displays the last three faults alarms Half reset Clears the self learning matrix Full reset Resets the parameters settings to the global default values and clears the self learning matrix and statistics Elstat use only Data dump Downlo...

Страница 23: ...rn Up button press to scroll up Down button press to scroll down Behind each of the main menu headings there is a list for further options Selecting PS enters the parameter list and from here parameters and their values can be viewed checked and amended as required Selecting tSt the test menu allows all inputs and outputs to be tested Selecting Hr half re set will allow a half reset to be performe...

Страница 24: ...p button once x 1 7 Press the Defrost button twice x 2 8 The display shows 3 6 Test routines The test tSt routine tests the following All load relays and buzzer output Analogue inputs temperature sensors and door switch Motion sensor Should a problem be suspected with the controller it is recommended that the test routine is carried out before disconnecting or replacing the controller The test rou...

Страница 25: ... to select which test to use Using the Up and Down buttons to scroll between tests Set to select the test required and Defrost to return to the test menu 3 6 2 The relay test The relay test rEL is used to test the function of the relays and buzzer within the controller and can also be used to diagnose problems with the cooler components such as compressor and lights before beginning work on the co...

Страница 26: ...mpressor LED is on Press Compressor relay disengaged Compressor stopped running and compressor LED is off Press Press Defrost to return to the relay test menu Follow the routine below for Light Action Button Display Test Check Press Light Press Select light Press Light relay engaged Cooler lights are on Press Light relay disengaged Cooler lights are off Press Press Defrost to return to the relay t...

Страница 27: ...ged Evaporator fan is on Press Fan relay disengaged Evaporator fan is off Press Press Defrost to return to the relay test menu Follow the routine below for Buzzer Action Button Display Test Check Press Buzzer Press Select buzzer Press Buzzer engaged Buzzer sound is on Press Buzzer disengaged Buzzer sound is off Press Press Defrost to return to the relay test menu ...

Страница 28: ...off Press Press Defrost to return to the relay test menu Follow the routine below for All outputs Action Button Display Test Check Press All outputs Press Select all outputs Press All outputs engaged All outputs are on Press All outputs disengaged All outputs are off Press Press Defrost to return to the relay test menu Note All outputs should only be engaged by experienced service personnel and re...

Страница 29: ...to the test menu 2 From the test menu Press the Down button to scroll to the analogue input test menu 3 The display shows 4 Press the Set button to enter the analogue input test menu Then follow the routine Action Button Display Test Check Appliance sensor input Press Appliance sensor temperature Displayed temperature is as expected Press Press Defrost to return to the analogue input test menu Pre...

Страница 30: ...input Press Condenser sensor temperature Displayed temperature is as expected Press Press Defrost to return to the analogue input test menu Press Evaporator sensor input Press Evaporator sensor temperature Displayed temperature is as expected Press Press Defrost to return to the analogue input test menu Press For future use Stock sensing hardware currently unavailable ...

Страница 31: ...the test menu Press the Down button to scroll to the PIR input test Then follow the routine Action Button Display Test Check Press Press the Set button to enter the motion sensor test Place your hand about 300mm from the motion sensor Move your hand from left to right Check for the following The display count increments for each detected movement The motion LED flashes for each detected movement P...

Страница 32: ...priate password to access the main menu 4 The display shows 5 Press the Down button and scroll to FLt 6 The display shows 7 Press the Set button to select The controller displays the last three faults witnessed The last three faults or alarms to occur are displayed for example A condenser high temperature alarm has occurred An appliance sensor alarm has occurred A Condenser Sensor alarm has occurr...

Страница 33: ...e when it is expected to be in ready mode The cooler does not appear to be going into the saving mode when expected A half reset will not Adjust change or alter any of the parameters or their values as set by the OEMs or Brands Fix any issues with cable connection Step Action Display 1 Press the Set button 2 The displays shows 3 Enter the button sequence of the Main menu entry password 4 Press the...

Страница 34: ...anual Issue 6 CMS200 www nexo com Page 34 Step Action Display 11 Press the Up button to change nO to yES 12 Press the set button to perform half reset The controller should reset and begin the power up sequence ...

Страница 35: ...nd Down buttons simultaneously The controller then scrolls through the statistics pausing for 6 seconds at each statistic before returning to normal operation The 3 digit display can show values from 0 to 999 For values of 1000 and above the display shows the value as a rounded decimal number For example 1 1 represents 1100 1 2 represents 1200 and so on Display Statistic Description Activity frequ...

Страница 36: ...he appliance sensor during the last 24 hours Motion counts Total number of motion counts since first powered up or last full reset Saving temperature disable Value of the standby temperature disable PEr parameter Possible values are OFF or ON OFF Saving temperature disable is switched off ON Saving temperature disable is switched on ...

Страница 37: ...ty As the CMS200 acts as a diagnostic device and manages various operational functions of the cooler it serves to prevent faults from becoming critical to the cooler for example over working of the compressor The limp home functionality has been added to the CMS200 controller in order to allow time for the end user to contact a service engineer in the event of any such problems occurring while pre...

Страница 38: ...r the duration of Ad alarm delay and b1 buzzer duration parameters 2 The compressor switches off 3 The RT compressor rest time parameter begins 4 In normal operation if DIS parameter is set to 1 the controller display will alternate between In normal operation if DIS parameter is set to 0 the controller display will alternate between 5 In saving mode the controller display will alternate between 6...

Страница 39: ...indicating a fault for the duration of defrost cycles Note Sensor faults may also be identified by using the input test within the test routines tSt 4 5 Appliance sensor failure alarms The limp home aspect of this alarm ensures that the cooler continues to operate with limited disruption to the end user The cooler will operate cooling the products while a service engineer visit is scheduled The ta...

Страница 40: ... will see Audio alarm Display Audible alarm sounds for ten seconds every compressor cycle compressor switches ON or OFF if the buzzer is enabled In Ready mode In Saving mode While the above is displayed the controller is managing the compressor and the fans The compressor cycles fifteen 15 minutes off then five 5 minutes on The fan switches on with the compressor on cycle then cycles when the comp...

Страница 41: ... the door switch The door switch input on the controller is in working order The controller should only register door open do when an open circuit is seen on the door switch input 5 3 Door Broken Alarms The controller has detected a problem with the door please check The door of the cooler is fully closed and able to be fully closed after each opening The door switch is properly connected to the d...

Страница 42: ...with freeze up protection may occur if the ambient temperature falls below 0 C 32 F or if the appliance sensor fails The controller has detected a below nominal temperature for the cabinet please check The appliance sensor is properly connected to the appliance input on the controller The correct positioning of the appliance sensor An adequate DTT parameter setting has been selected when taking in...

Страница 43: ...n motor is in working order including fuse protection if fitted Ensure the fan blades are free from obstruction Ensure the evaporator fan belt is not loose and or worn out 5 9 3 Heater does not switch ON OFF as expected Note Enter the service mode via the APP or the In code test routine via the front panel of controller if applicable to ensure that the controllers intended operation is not affecti...

Страница 44: ...es are due to a problem with the system that causes the compressor to fail If you don t find this problem with the system and correct it a replacement compressor would also soon fail Some of the most common contributors to compressor failure are Dirty Evaporator or Condenser Loose Evaporator Fan Belts Improper Refrigerant Charge ...

Страница 45: ...elsius or Fahrenheit CF Set point SP and Differential dIF Saving set point SSP Saving differential Sd and Saving temperature disable PEr Appliance sensor calibration 1 CA1 Operation Saving restart Sr Delay to saving mode dS Freeze up protection dtt Compressor rest time rt Defrost Defrost interval dE and Defrost duration dd Defrost termination temperature dtd Defrost heater relay dHr Defrost activa...

Страница 46: ... the parameter listings The controller will only display one broken rule at a time even if all rules are broken Priority order as above 6 3 Parameters definition 6 3 1 Set point SP Display Description Defines the compressor cut out temperature during the ready mode The set point SP temperature is the lowest measured temperature under normal operating conditions Considerations Must be above the fre...

Страница 47: ...or rest time rt helps to avoid the following Passing peak current through the windings of the compressor motor Switching off the system on the thermal overload protection Short cycling of the system Considerations If set too low the compressor rest time may cycle on the set point SP and differential dIF temperatures or the saving set point SSP and saving differential Sd temperatures Range 1 to 30 ...

Страница 48: ...eriod to ensure that the product is at the ready mode temperatures prior to retail outlet opening time Considerations Set and verified by OEMs through the test protocol to ensure that product temperatures are within specification when outlets open Set in multiples of 30 minutes Range 0 to 240 minutes in multiples of 30 minutes Global default 120 minutes 6 3 8 Refrigeration system failure Ct Displa...

Страница 49: ...lay Description Defines the compressor cut in temperature when added to the saving set point SSP temperature during the Saving mode Considerations If the saving differential Sd is set too low for example less than 2 0 C the compressor may cycle on the minimum compressor rest time rt Range 0 0 to 9 9 C 0 to 18 F Global default 3 0 C 5 F 6 3 11 Saving set point SSP Display Description Defines the co...

Страница 50: ...od between the end of defrost cycle and beginning of the next defrost cycle A time based defrost cycle helps improve evaporator efficiency Considerations In the event of power loss the defrost interval dE is not maintained The defrost interval is reset If icing up occurs review the values of the defrost parameters Range 0 to 199 hours Global default 6 hours 6 3 14 Defrost duration dd Display Descr...

Страница 51: ...le the compressor is switched off Considerations Fan cycle is the fan cycle on FCO time the fan cycle off FCF time Range 0 to 30 minutes Global default 20 minute 6 3 17 Alarm delay Ad Display Description Defines the maximum time the cooler door can be open before sounding the alarm buzzer Considerations If disabled the door switch is also disabled if so the controller does not detect door openings...

Страница 52: ...fault 60 seconds 6 3 19 Motion sensor enable Sn Display Description Enables the input from the motion sensor Considerations Must be disabled if a motion sensor is not fitted Range 0 disabled or 1 enabled Global default 1 enabled 6 3 20 Display stability d2 Display Description Defines the rate of change of the displayed temperature Limiting the rate of change provides a dampening effect so as not t...

Страница 53: ... 110 11 210 21 Note Voltage measurement is accurate to typically 10 Caution Voltage management operation as described above will only operate reliably when power is supplied by the following power supply modules Elstat Sub Zero PSM part number 30001 0102 120V variant or 30002 0102 240V variant If Elstat ems75 SZ PSM part number 3101 0102 120V variant or part number 33102 0102 240V variant are used...

Страница 54: ...25 260 26 270 27 Note Voltage measurement is accurate to typically 10 Caution Voltage management operation as described above will only operate reliably when power is supplied by the following power supply modules Elstat Sub Zero PSM part number 30001 0102 120V variant or 30002 0102 240V variant If Elstat ems 75 SZ PSM part number 3101 0102 120V variant or part number 33102 0102 240V variant are u...

Страница 55: ...eration system by monitoring the condenser sensor On reaching the condenser high temperature Ht the controller disables the compressor and activates an alarm Considerations Requires a condenser sensor To set the condenser high temperature Ht measure the refrigeration system temperature when the condenser is 75 blocked To disable set below 50ºC or 122ºF Range 0 to 125ºC 32 to 257ºF Global default 0...

Страница 56: ...cy If power is lost during the 48 hour period the controller restarts the 48 hour period The controller must complete the 48 hour period to determine the activity frequency before starting the 1 day or 7 day learning period 6 3 26 Fan set point FSP Display Description Prevents excessive condensation on the evaporator in environments where warm and presumed humid air is present by operating the eva...

Страница 57: ...larms sound the buzzer as standard Range 0 disabled or 1 enabled Global default 1 enabled 6 3 28 Saving temperature disable PEr Display Description Disables the saving mode temperatures so that the controller maintains the Ready mode temperatures at all times Disabling the Saving mode temperatures does not affect the light functionality Considerations None Range 0 off or 1 on Global default 0 off ...

Страница 58: ...mperature Global default 1 temperature 6 3 31 Marketing mode Ar Display Description Sets the cooler lights to remain on at all times for display purposes The coolers lights will remain on during saving mode Considerations Does not affect saving temperature Range 0 off or 1 on Global default 0 off 6 3 32 Defrost method dF Display Description Provides the option for a time based or temperature based...

Страница 59: ...controller ends the defrost cycle on the first to occur Considerations Defrost method dF must be set to 0 Range 0 time dd or 1 time dd or temperature dtd Global default 1 time or temperature 6 3 34 Defrost activation temperature ddt Display Description Defines the temperature measured on the evaporator sensor that activates an off cycle defrost The defrost activation temperature minimizes the risk...

Страница 60: ... for one minute after the end of the defrost cycle 4 Switch on the defrost heater during the defrost cycle and do not run the evaporator fan The evaporator fan then remains off for two minutes after the end of the defrost cycle 5 Switch on the defrost heater during the defrost cycle and do not run the evaporator fan The evaporator fan then remains off for three minutes after the end of the defrost...

Страница 61: ...otechnical Commission IEC IEC60730 1 IEC60730 2 9 Glow wire IEC60335 1 North America including Canada UL mark Component Recognition UL60730 1 CSA E60730 1 UL60730 2 9 CSA E60730 2 9 Federal Communications Commission FCC FCC Part 15 107 15 109 Electromagnetic Compatibility EMC EMC EN55014 1 EN55014 2 EN61000 6 1 EN61000 6 3 EN61000 3 2 EN61000 3 3 European Telecommunications Standards Institute ETS...

Страница 62: ...C 729 80 Resolución SC 784 87 European Telecommunications Standards Institute ETSI EN300 328 V1 8 1 Federal Communications Commission FCC Part 15C Instituto Federal de Telecomunicaciones IFETEL NOM 121 SCT1 2009 IC Industry Canada RSS GEN RSS 102 RSS 247 Note Elstat Bluetooth Module This product is approved by ANATEL according to the procedures regulated by Resolution 242 2000 and meets applied te...

Страница 63: ...usion and water into the housing of the controller 8 2 Controller and accessory terms The table below describes the meanings of some of the terms used frequently within the manual in relation to the controller and accessories Term Meaning Ready mode The cooler is operational and cooling products to the set point Saving mode The cooler is saving energy and cooling products to the saving set point A...

Страница 64: ...CMS200 Product Manual Installation set up guide Accessories User guide Troubleshooting Elstat Ltd Astra Business Centre Roman Way Preston Lancashire PR2 5AP UK www nexo com info nexo com ...

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