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2

what is the ems55

advanced

?

The ems55 series is for use with open front (

OFC

) or glass door (

GDC

) coolers, offering energy savings and guaranteed

product temperatures.

Unlike mechanical thermostats, the ems self-learning technology ensures the product is at the optimum serving tem-
perature required by the customer from the moment the outlet opens.

The ems55 series is available with an integrated motion sensor - ems55

advanced

, and with out and integrated motion sensor

- ems55R

advanced

Example ems55

advanced

pictured below - with integrated motion sensor

Example ems55R

advanced

pictured below - with remote motion sensor

The ems55 series with the suitable accessories also provide the following functionality.

feature

description

user and diagnostic
information

3-digit, 7-segment display. Shows the product temperature and other information such as defrost
and alarm conditions. Push buttons enable end-users to cancel alarms and service technicians to
run test routines.

product
temperature

an appliance sensor measures the temperature of the refrigeration compartment.
ems controllers use the refrigeration temperature to manage the product temperature.

refrigeration system
high temperature
alarms

a temperature sensor mounted on the gas cooler outlet pipe, measures the temperature of the
gas cooler system.
ems controllers monitor the temperature to alert to high temperature or pressure problems.

temperature-based
defrost (

OFC

coolers)

an optional evaporator sensor to activate and terminate defrost cycles on

OFC

coolers based on

the evaporator temperature.
use the

aux

input at the rear of the controller for the evaporator sensor.

ems55advanced and ems55Radvanced / General Use

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Содержание ems25+

Страница 1: ...ebruary 2014 Firmware U01 n01 ems55advanced and ems55Radvanced GDC Firmware U02 r01 ems55advanced and ems55Radvanced OFC Elstat Electronics Ltd Astra Business Centre Roman Way Preston Lancashire PR2 5AP 44 0 161 2277200 www elstatgroup com ...

Страница 2: ...12 3 temperature input ranges 13 3 1 how to mount the appliance sensor 13 3 2 how to mount the condenser sensor 14 3 2 1 condenser sensor 14 3 3 how to mount the evaporator sensor 15 4 door switch 16 4 1 how to mount the door switch 16 4 2 how to mount the enhanced door switch 17 4 3 how to mount door switches on double door coolers 18 5 ems controllers functionality 19 5 1 product temperature 19 ...

Страница 3: ... tst 40 7 7 how to perform a half reset Hr 42 7 8 how to view the last three alarms FLt 43 7 9 how to view statistics 43 8 troubleshooting 46 8 1 how to check that ems controllers are working correctly 46 8 2 how to troubleshoot condenser high temperature Ht alarms 47 8 3 how to troubleshoot door alarms door switch fitted 48 8 4 how to troubleshoot door alarms no door switch fitted 48 8 5 how to t...

Страница 4: ...ter by owners 67 10 3 alarm delay Ad 67 10 4 activity frequency AF 67 10 5 marketing mode Ar 68 10 6 buzzer enable b0 68 10 7 buzzer duration b1 69 10 8 calibration 1 CA1 69 10 9 calibration 2 CA2 69 10 10 Celsius or Fahrenheit CF 70 10 11 refrigeration system failure Ct 70 10 12 display stability d2 70 10 13 defrost duration dd 71 10 14 defrost activation temperature ddt 71 10 15 defrost interval...

Страница 5: ...ights delay Ld 77 10 31 low voltage LO 77 10 32 learning period LP 78 10 33 saving temperature disable PEr 78 10 34 compressor rest time rt 79 10 35 saving differential Sd 79 10 36 motion sensor enable Sn 79 10 37 set point SPC or SPF 80 10 38 saving restart period Sr 80 10 39 saving set point SSP 80 11 technical data ems55advanced 82 ems55advanced and ems55Radvanced General Use 5 of 84 ...

Страница 6: ...oor coolers l double door coolers l open front coolers l vending machines l sub zero beer coolers 1 1 about this reference guide The purpose of this guide is to explain in detail all information regarding elstat controllers including the user interface para meters accessories and troubleshooting Complimentary information is also available from elstat such as accessory lists accessory data sheets a...

Страница 7: ...ic information 3 digit 7 segment display Shows the product temperature and other information such as defrost and alarm conditions Push buttons enable end users to cancel alarms and service technicians to run test routines product temperature an appliance sensor measures the temperature of the refrigeration compartment ems controllers use the refrigeration temperature to manage the product temperat...

Страница 8: ...sor to manage the temperature of the refrigeration com partment evaporator fan ems controllers switch the evaporator fan to manage the evaporator fan lights ems controllers switch the cooler lights to save energy 2 1 ems55 series controllers ems55 series controllers have an IP ingress protection rating of IPX5 An appropriate level of protection must be given for the effects of water ingress due to...

Страница 9: ...PX5 certified The OEM or installer is responsible to ensure that local country laws and regulatory requirements are met 2 3 ems55 user interface The user interfaces of the ems55advanced the ems55Radvanced are as follows LED indicators indicator function colour compressor on when the compressor is running green evaporator fan on when evaporator fan is running red ems55advanced and ems55Radvanced Ge...

Страница 10: ...ics of ems55 series controllers characteristic value IP rating IPX5 maximum operating temperature 55oC 131o minimum operating temperature 0oC 32oF housing material black polycarbonate 2 5 ems55 series relay ratings The table below details the relay ratings of ems55advanced and ems55Radvanced controllers relay maximum IEC rating 100 240VAC maximum UL ratings 120VAC compressor 10 10 A p f 0 6 16 FLA...

Страница 11: ... ems55 series controllers are designed to be mounted horizontally Ingress protection IP rating of IPX5 applies to ems55 controllers mounted in the correction orientation only as shown below ems55advanced and ems55Radvanced General Use 11 of 84 ...

Страница 12: ...re immediately prior to the connection to the controller a drip loop must be formed in all wiring as shown below Attention l Cable routing looms must not be secured to hot pipes or vibrating components l Secure cable routing looms with clips where ever possible 2 8 how to mount ems55 series controllers ems55 series controllers have an IP ingress protection rating of IPX5 An appropriate level of pr...

Страница 13: ...sensor measures air temperature of the refrigerated compartment by measuring the return air temperature The diagram below shows the recommended position of the appliance sensor The appliance sensor measures the air tem perature after the air has been drawn over the products The return air provides a close approximation of the product tem perature To measure the return air temperature secure the se...

Страница 14: ... 2 1 condenser sensor ems controllers can generate alarms if the refrigeration system temperature rises too high The value of the high temperature is set by measuring the refrigeration system temperature when the condenser is approx imately 75 blocked The temperature is then set as the value of the condenser high temperature Ht parameter l See condenser high temperature Ht on page 76 For example f...

Страница 15: ...low The sensor head must be mounted securely to prevent being dislodged due to vibration For coolers fitted with a defrost heater the evaporator sensor should be placed as far away as possible from the heating ele ment i e at the opposite end of the evaporator If the evaporator sensor measures the localized heating from the heating element defrost cycles will terminate before the whole evaporator ...

Страница 16: ...switches and activators must be fixed using counter sunk screws or bolts with the following characteristics l Head countersunk head maximumdiameter 5 0mm 0 24in l Thread maximumdiameter 3 0mm 0 16in The screws must be tightened to a maximum torque of 0 5Nm 0 37lb f ft Caution l Door switches and activators supplied by elstat must not be installed using rivets Using rivets invalidates the warranty ...

Страница 17: ... minimumdiameter 5 0mm 0 196 in l Thread maximumdiameter 3 0mm 0 118in The screws must be tightened to a maximum torque of 0 5Nm 0 37lb f ft Caution Door switch kits supplied by elstat must not be installed using rivets Using rivets invalidates the warranty The alignment of the door switch and activator is critical for the correct operation of the door switch The table below details the alignment ...

Страница 18: ...3 how to mount door switches on double door coolers For double door coolers two door switches must be connected in series Connect two door switches in series as follows 1 Remove the two wires fromone of the connectors Be carefulnot to damage the terminals 2 Remove the white wire fromthe second connector Again be carefulnot to damage the terminal 3 Insert the white wire of the first cable into the ...

Страница 19: ...energy saving purposes Note l Dependent on controller and sensor configuration 5 1 product temperature ems controllers manage the product temperature ems controllers use an appliance sensor to measure the air temperature of the refrigeration compartment The location of the appliance sensor within the refrigeration compartment depends on the cooler type However to compensate for differences between...

Страница 20: ...eriods with activity and the saving mode during periods without activ ity ems controllers record the periods with and without activity in the self learning matrix 5 3 ready mode ems controllers run in the ready mode when outlets are open In the ready mode the product is at the correct serving temperature and the cooler lights are on ems controllers ensure that the product is at the correct serving...

Страница 21: ... ready mode during periods without activity immediately prior to outlets closing for marketing purposes For more information about the parameters used in ready mode l See display stability d2 on page 70 l See differential dIF on page 72 l See display dIS on page 72 l See delay to saving dS on page 73 l See set point SPC or SPF on page 80 5 4 saving mode ems controllers run in the saving mode when ...

Страница 22: ...rollers switch on the cooler lights for the remainder of the current 30 minute period but do not start cooling cycle For more information about the parameters used in saving mode l See saving temperature disable PEr on page 78 l See saving differential Sd on page 79 l See saving restart period Sr on page 80 l See saving set point SSP on page 80 5 5 defrost on glass door coolers GDC Defrost cycles ...

Страница 23: ...t duration dd or either on the defrost duration or on reaching defrost termination temperature dtd as defined by the defrost termination method dtF temperature based Temperature based defrost cycles occur when the temperature measured on the evaporator sensor falls below the defrost activation temperature ddt Temperature based defrost cycles end after the defrost duration dd or on reaching the def...

Страница 24: ...dtt temperature plus the differential dIF temperature For ems controllers that manage the evaporator fan the ems controller starts the evaporator fan cycle For more information about the parameters used in freeze up protect l See differential dIF on page 72 l See freeze up protection dtt on page 74 5 8 compressor management ems controllers manage the compressor to maintain the product temperature ...

Страница 25: ...he dis play between PF2 and the appliance sensor temperature l PF2 alarms may also indicate a problemwith the gas cooler high temperature sensor when the cooler is a CO2 R744 version An ems55advanced CO2controller willalternate between PF2 and the gas cooler temperature sensor temperature l For evaporator failures indicated by PF3 alarms ems controllers continue running the compressor ems controll...

Страница 26: ...ode Ar can keep the lights on for the duration of the saving mode For more information about the parameters used in lights management l See marketing mode Ar on page 68 l See lights delay Ld on page 77 5 11 statistics ems controllers start gathering statistics when first powered up Statistics provide information on the following l temperature lowest highest and average temperature measured on the ...

Страница 27: ...ons Note l For door open alarms the buzzer sounds regardless of the buzzer enable b0 setting For more information about the parameters used in alarms l See buzzer enable b0 on page 68 l See buzzer duration b1 on page 69 ems55advanced and ems55Radvanced General Use 27 of 84 ...

Страница 28: ...ts ems controllers to use a 1 day or 7 day learning period ems controllers build the complete 7 day self learning matrix as follows l 1 day learning period the ems controller runs in ready mode for the first day 24 hours The ems controller then uses the self learning matrix of day 1 for the next six days to build a complete 7 day self learning matrix l 7 day learning period the ems controller runs...

Страница 29: ...ns in the ready mode from06 00 to 20 00 l Day 6 the ems controller runs in the ready mode from08 00 to 14 00 l Day 7 the ems controller remains in the savingmode Note l The self learning matrix starts the moment the ems controller is first switched on and is not synchronized with calendar days However the diagrambelow starts at 00 00 on Day 1 for clarity 6 2 how a 7 day learning period works ems c...

Страница 30: ...e state frommonitor 1 to ready 2 depends on the setting of the activity frequency AF para meter Therefore at the end of day 1 first 24 hours the ems controller has set all the 30 minutes to ready 2 or saving 0 depend ing the outlet activity pattern as shown in the following example matrix The ems controller then continues to run in the ready mode for the remainder of the 7 day learning period whil...

Страница 31: ...elf learning matrix depending on how much activity is detected in each 30 minute period as follows l if the ems controller detects activity during a 30 minute period the ems controller changes the state frommonitor 1 to ready 2 l if the ems controller does not detect activity the ems controllers changes the state frommonitor 1 to saving 0 Note l The amount of activity required to change the state ...

Страница 32: ... saving 0 if activity is detected change to monitor 1 Otherwise keep the period set to monitor 0 For example the self learning matrix shows that the outlet is open for longer on day 2 than day 1 Therefore the ems controller has changed the state of the periods that were set to saving 0 to monitor 1 as shown in the following example matrix At the end of week 1 the ems controller has updated the sel...

Страница 33: ...riod 0 reaches the minimumnumber of door openings or motion counts the ems controller sets the period to monitor 1 For example the self learning matrix below shows monitor 1 periods during periods with and without activity Note l If activity occurs in a saving period 0 such as a motion detection or a door opening the ems controller switches the cooler lights on and sets the period to monitor 1 How...

Страница 34: ...tive period is less than the saving restart time For example the diagram below shows a period of inactivity saving 0 at 18 00 followed by two monitor 1 periods In this instance the ems controller would ignore the saving 0 at 18 00 and switch to the saving mode at 19 30 Note l ems controllers always run in the ready mode for periods in the self learning matrix that are set to 1 monitor or 2 ready I...

Страница 35: ...rd USE 7 2 display codes The table below details the display codes for ems controllers display state description ready mode ems controllers display the appliance sensor temperature such as 4 0 or the word USE Also the cooler lights are switched on See how to check that ems controllers are working correctly on page 46 saving mode ems controllers keep products at the saving mode temperature unless t...

Страница 36: ...evaporator fan if applicable according to the evaporator fan cycle Problems may occur if the ambient temperature falls below 0 C 32 F or if the appliance sensor fails See how to troubleshoot problems with freeze up protection 888 on page 51 refrigeration system failure See how to troubleshoot refrigeration system failure rSF alarms on page 50 condenser high temperature Not applicable to CO2 R744 c...

Страница 37: ...s to check the values of the parameters View the parameter settings as follows 1 Press and hold the set button until PAS is displayed 2 Enter the button sequence of the password 3 Ensure that PS is displayed 4 Press and hold the set button to view the parameter name and value alternatively 5 Keep the menu button pressed to scroll through the parameter settings See Celsius or Fahrenheit CF on page ...

Страница 38: ...F on page 67 See fan set point FSP on page 75 See motion sensor enable Sn on page 79 See condenser high temperature Ht on page 76 not used with CO2 R744 coolers See saving temperature dis able PEr on page 78 See defrost termination tem perature dtd on page 73 See learning period LP on page 78 See compressor rest time rt on page 79 See display dIS on page 72 See delay to saving dS on page 73 See ma...

Страница 39: ...nter the button sequence of the password 3 Ensure that PS is displayed 4 Press and hold the set button to view the parameter name and value alternatively 5 Keep the menu button pressed to scroll through the parameter settings See Celsius or Fahrenheit CF on page 70 See defrost interval dE on page 71 See set point SPC or SPF on page 80 See defrost duration dd on page 71 See differential dIF on page...

Страница 40: ...tem perature dtd on page 73 See buzzer enable b0 on page 68 See compressor rest time rt on page 79 See activity frequency AF on page 67 See delay to saving dS on page 73 See motion sensor enable Sn on page 79 See lights delay Ld on page 77 See saving temperature dis able PEr on page 78 See saving restart period Sr on page 80 See learning period LP on page 78 See refrigeration system fail ure Ct on...

Страница 41: ...e down button to start and test the relays as described in the following table button display test check or compressor relay compressor is running and com pressor LED is on light relay cooler lights are on evaporator fan relay evaporator fan is run ning Note l To switch off the relays that are on press the defrost button 8 Press the defrost and set buttons simultaneously to test the analogue input...

Страница 42: ...right and ensure the following l The display count increments for each detected movement l The motion LED flashes for each detected movement 12 Press the defrost and set buttons simultaneously to end the test routine 7 7 how to perform a half reset Hr Perform a half reset to clear the self learning matrix if the ems controller has been unable to detect activity correctly for example the view of th...

Страница 43: ...equence of the menu entry password 3 Ensure that PS is displayed 4 Press down to scroll down to FLt 5 Press the set button 6 The last three faults or alarms to occur are displayed For example a condenser high temperature alarm has occurred a refrigeration system failure alarm has occurred a door open alarm has occurred Please note l The alarms may have been cleared or cancelled by the retailoutlet...

Страница 44: ...x 24 hour periods Note that the average is a moving average Total number of compressor cycles since first powered up or last full reset compressor runtime Total number of hours that the compressor has run since the ems controller was first powered up or since the last full reset No change door openings Average number of door open ings per day 24 hour period during the past 7 days 7 x 24 hour perio...

Страница 45: ...the average is moving average saving temperature disable Value of the standby temperature disable PEr para meter Possible values are OFF or ON OFF Standby temperature dis able is switched off ON Stanby temperature disable is switched on No changes ems55advanced and ems55Radvanced General Use 45 of 84 ...

Страница 46: ...page 50 flashes for 3 seconds then static CO2 alarm gas cooler high temperature continuous flashing CO2 alarm Lock out motion detection LED flashing continuously motion sensor problem l See how to troubleshoot motion sensor alarms on page 49 cooler not cooling l See how to troubleshoot not cooling problems on page 52 cooler lights do not switch on If the ems controller is in the ready mode check t...

Страница 47: ... the refrigeration system such as a blocked condenser or faulty con denser fan Note this alarm is not applicable with CO2 coolers and the ems55advanced CO2 For information about the condenser high temperature Ht parameter l See condenser high temperature Ht on page 76 Follow the chart to troubleshoot condenser high temperature Ht alarms ems55advanced and ems55Radvanced General Use 47 of 84 ...

Страница 48: ... delay Ad parameter l See alarmdelay Ad on page 67 Follow the chart to troubleshoot door open alarms on coolers with a door switch 8 4 how to troubleshoot door alarms no door switch fitted Door alarms with coolers without a door switch fitted usually indicates that the ems controller has an incorrect parameter set For information about the alarm delay Ad parameter l See alarmdelay Ad on page 67 Fo...

Страница 49: ...is faulty or if a motion sensor is not fitted that the parameter settings are incorrect Note l The ems controller stays in the ready mode if the motion detection LED is flashing continuously For information about the motion sensor enable Sn parameter l See motion sensor enable Sn on page 79 Follow the chart to troubleshoot problems with the motion sensor ems55advanced and ems55Radvanced General Us...

Страница 50: ...sor runtime Ct parameter For information about the set point and compressor run time parameters l See refrigeration systemfailure Ct on page 70 l See set point SPC or SPF on page 80 Follow the chart to troubleshoot refrigeration system failures 8 7 how to troubleshoot temperature sensor alarms ems controllers manage sensor failures as follows ems55advanced and ems55Radvanced General Use 50 of 84 ...

Страница 51: ...play PF2 and the gas cooler sensor temperature indicating a fault l PF3 alarms ems controllers continue to run the compressor normally and alternate the display PF3 and the appliance sensor tem perature Sensor faults may also be identified by using the input test within the test routine l See how to run the test routine tst on page 40 Follow the chart to troubleshoot problems with the appliance se...

Страница 52: ...ameter l See freeze up protection dtt on page 74 8 9 how to troubleshoot not cooling problems Follow the chart below to troubleshoot problems of the cooler not cooling i e the cooler or product is warm ems55advanced and ems55Radvanced General Use 52 of 84 ...

Страница 53: ...ler XML files cannot be manually edited If an operator or engineer tries to edit an XML file the parameter loader displays a message stating the XML file is not valid The table below details the naming conventions of the XML file names for ems controllers ems controller XML file name ems25 EMS25BAS CCCC NNNNN XXXXX ems25 EMS25PLUS CCCC NNNNN XXXXX ems25advanced EMS25ADV CCCC NNNNN XXXXX ems55advan...

Страница 54: ...e CRC C Checksum displayed on an ems55advanced with firmware version E52 F07 Displayed after manually scrolling through the parameter list following download of the parameter settings with the parameter programming tool dongle CRC D Checksum displayed on all other ems controllers following download of the parameter settings with the parameter programming tool dongle 9 3 parameter programming acces...

Страница 55: ... CDM20808 zip from the files supplied by elstat which contain the Windows drivers for Windows XP and save into a suitable location For example C Program Files elstat drivers 2 Insert the USB docking cradle into a spare USB port and ensure that the Windows New Hardware Found wizard starts automatically 3 Select No not this time as shown below 4 Select Install from a list or specific location Advanc...

Страница 56: ...e the drivers were saved For example C Program Files elstat drivers Click Next and wait while the wizard searches and downloads the drivers 6 Once completed click Finish to close the wizard ems55advanced and ems55Radvanced General Use 56 of 84 ...

Страница 57: ...r version to a suitable location on the localcomputer Double click the file Setup_ParameterLoader_Rx x exe to start in the setup wizard 2 Click Next to start the installation wizard 3 Select the destination location Click Next to use the default location or click Browse to define a different location and then click Next ems55advanced and ems55Radvanced General Use 57 of 84 ...

Страница 58: ... folder Click Next to use the default folder or click Browse to define a different folder and then click Next 5 Confirm that the setup information is correct Click Install ems55advanced and ems55Radvanced General Use 58 of 84 ...

Страница 59: ... in the Start menu l Double click the file ParameterLoader exe located in for example the folder C elstat ParameterLoader Note On starting the parameter loader for the first time the dialog box below appears prompting for the fractional sep arator Select point or comma according to the decimal format in your region ems55advanced and ems55Radvanced General Use 59 of 84 ...

Страница 60: ...rivers on Windows XP on page 55 Finally define the COM port of the docking cradle 9 8 how to configure the COM port Configure the COM port as follows 1 Start the parameter loader as follows l Click Parameter Loader in the Start menu l Double click the file ParameterLoader exe 2 Click the Start menu select Control panel System Device Manager Ports COM LPT as shown below 3 Check the COM port allocat...

Страница 61: ...he USB serial port and make a note of the port settings as shown below 4 On the parameter loader click the Edit Com port settings to display the dialog box below ems55advanced and ems55Radvanced General Use 61 of 84 ...

Страница 62: ...own below 4 Click Load XML and browse to the location of the extracted file and then select the XML file with the parameter set tings For example select the XML file C Program Files elstat EMS25PLUS GDC 12312 NNNN xml 5 Ensure that the parameter values displayed on the parameter loader are correct as stated in the parameter inform ation pack The parameter loader also displays the name of the XML n...

Страница 63: ... and settings and repeat the procedure If the error persists this indicates a malfunction of the equipment 8 Remove the parameter programming toolfromthe USB docking cradle 9 10 how to view the download counter When programming a large quantity of parameter programming tools dongles a display counter can be viewed To view the download counter click Tools Download counter Note The download counter ...

Страница 64: ...ow Fractional number settings l Select point or comma according to the decimalformat in your region Do not show download completed successfully window l Check this option to stop the down completed successfully window appearing after each successfuldownload 9 13 display codes for parameter downloads The table below shows the display when downloading parameters to the controller display description...

Страница 65: ...splay description The parameters were not downloaded The ems controller will reboot and display the checksum following successful parameter downloads ems55advanced and ems55Radvanced General Use 65 of 84 ...

Страница 66: ...rential dIF saving set point SSP and saving differential Sd 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 method dF and defrost termination method dtF defrost interval dE and defrost duration dd defrost activation temperature ddt and defrost termination temperatu...

Страница 67: ... learning period LP and activity frequency AF display dIS and display stability d2 light delay Ld and marketing mode Ar fan set point FSP alarm delay Ad buzzer enable b0 and buzzer duration b1 refrigeration system failure Ct condenser high temperature Ht 10 3 alarm delay Ad The table below details the alarm delay Ad parameter display description Defines the maximum time the cooler door can be open...

Страница 68: ...s the value of the activity frequency to 0 1 or 2 Note l If AFis set to 3 the ems controller must run continuously for 48 hours to set the value of the activity frequency If power is lost during the 48 hour period the ems controller restarts the 48 hour period The ems controller must complete the 48 hour period to determine the activity frequency before starting the 1 day or 7 day learning period ...

Страница 69: ... for door open alarm conditions If the door remains open after the buzzer duration b1 the ems controller switches off the compressor considerations The ems controller switches off the compressor after the duration defined by alarm delay Ad buzzer duration b1 range 1 to 254 seconds global default 60 seconds 10 8 calibration 1 CA1 The table below details the calibration 1 CA1 parameter display descr...

Страница 70: ...l Aglobalreset sets ems controllers using Fahrenheit F to Celsius C l Applies to alltemperature settings and values range 00 C or 01 F global default 00 C 10 11 refrigeration system failure Ct The table below details the refrigeration system failure Ct parameter display description Defines the maximum continuous runtime of the compressor without reaching the set point SP tem perature If the set po...

Страница 71: ...up occurs review the values of the defrost parameters range 1 to 199 minutes global default 15 minutes 10 14 defrost activation temperature ddt The table below details the defrost activation temperature ddt parameter display description Defines the temperature measured on the evaporator sensor that activates an off cycle defrost The defrost activation temperature minimizes the risk of evaporator i...

Страница 72: ...rature based defrost cycle considerations Used only with sub zero and OFC firmware Not available on GDC firmware range 00 time based or 01 temperature based global default 00 time based 10 17 differential dIF The table below details the differential dIF parameter display description Defines the compressor cut in temperature when added to the set point SPC or SPF temperature dur ing the ready mode ...

Страница 73: ...ture dtd The table below details the defrost temperature duration dtd parameter display description Defines the temperature to end the defrost cycle Ending defrost cycles on temperature minimizes the duration of defrost cycles The temperature is measured as follows l OFC and sub zero coolers the temperature is measured on the evaporator sensor l GDC coolers the temperature is measured on the appli...

Страница 74: ...on demand time dtO The table below details the maximum defrost on demand time dtO parameter Display Description Maximum defrost on demand time is the maximum time of a temperature based defrost cycle Considerations Available only with the ems55 series using OFC Open Front Cooler firmware This parameter may not appear in all firmware versions Range 10 to 120 minutes Global default 30 minutes 10 23 ...

Страница 75: ...CO time the fan cycle off FCF time Not used on the ems25 range 1 to 30 minutes global default 30 minutes ems75sz 5 minutes 10 26 fan set point FSP The table below details the fan set point FSP parameter display description Prevents excessive condensation on the evaporator in environments where warm and presumed humid air is present by operating the evaporator fan If the fan set point FSP temperatu...

Страница 76: ...80 139 180 230 190 114 185 142 185 235 195 118 190 145 190 240 200 122 195 148 195 245 205 250 210 255 215 260 220 note Voltage measurement is accurate to 10 265 225 Caution l High voltage protection is not calibrated and actualperformance can be influenced by severalfactors Therefore totalprotection cannot be guaranteed 10 28 condenser high temperature Ht The table below details the condenser hig...

Страница 77: ... as follows l Above the saving set point SSP plus saving differential Sd temperature l Above the defrost termination dtd temperature range 0 0 to 30ºC 32 to 86ºF global default 20ºC 68ºF 10 30 lights delay Ld The table below details the lighst delay Ld parameter display description Defines the delay to switch off the cooler lights after the ems controller switches to the saving mode considerations...

Страница 78: ...ed by severalfactors Therefore totalprotection cannot be guaranteed 10 32 learning period LP The table below details the learning period LP parameter display description Defines whether the ems controller uses a 1 day or a 7 day learning period considerations None range 00 1 day or 01 7 days global default 00 1 day 10 33 saving temperature disable PEr The table below details the saving temperature...

Страница 79: ...e 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 minutes global default 3 minutes 10 35 saving differential Sd The table below details the saving differential Sd parameter display description Defines the compressor cut in temperature when added to the saving set point SSP tempera...

Страница 80: ...us or Fahrenheit considerations Must be above the freeze up protection dtt temperature range 9 9 to 9 9 C 14 to 50 F global default 3 0 C 37 F ems75sz 3 0 C 27 F 10 38 saving restart period Sr The table below details the saving restart period Sr parameter display description Defines the maximum time allocated to reach the set point SP temperature from the saving mode tem perature considerations l ...

Страница 81: ...saving mode considerations Must be set above the set point SP plus differential dIF temperature range 0 0 to 9 9 C 32 to 50 F ems75sz 9 9 to 9 9 C 14 to 50 F global default all except ems75sz 7 0 C 45 F ems75sz 3 0 C 37 F ems55advanced and ems55Radvanced General Use 81 of 84 ...

Страница 82: ...A p f 0 6 light 4 4 A p f 0 6 evaporator fan 4 4 A p f 0 6 Temperature sensors sensor input range oC input range oF appliance sensor 10oC to 23 3oC 0 5oC 14oF to 74oF 1oC condenser sensor 10oC to 23 3oC 5oC 122oF to 257oF 10oF Environmental ratings characteristic value IP Ingress Protection l controller IPX5 maximum ambient temperature 55oC 131oF ems55advanced and ems55Radvanced General Use 82 of ...

Страница 83: ...otechnical Commission UL 60730 1 CSA E60730 1 UL 60730 2 9 CSA E60730 2 9 North America including Canada only UL mark Component recognition mark Please note CE Conformité Européene European Conformity Replaces RoHS Restriction of Hazardous Substances On controller labelling as of January 2013 ems55advanced and ems55Radvanced General Use 83 of 84 ...

Страница 84: ... pre viously supplied Neither elstat nor any of its directors employees or other representatives will be liable for loss or damage arising out of or in connection with the use of this document This is a comprehensive limitation of liability that applies to all damages of any kind including without limitation compensatory direct indirect or consequential damages loss of data income or profit loss o...

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