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Refrigeration System Code: FLSTDMFC0A Version V1.1

1. A SMALL MEDIUM LARGE ja E E E s28 8 8 EMI S 3 3 3 3 3 3 3 3 a o n 3 8 8 farada RR ER lala 3 S Z z E 2 3 x MES s gs Sls s g E S a m a m A en E 0 0 0 XN V VII XY y Y V NX XN 0 0 0 1 Y Y Y Y Y Y Y y y E 0 0 2 V NX vi XY y Y X Vv XN 2 0 o 3 MII v TN TN v LN TN EE 0 0 4 vy v v 24 V _v Nelli vy 4 0 0 5 N 4X s V N Y N 4 E E TI 4 E v LN TN ja 1 0 1 _v 4X FERES y _v JN Vv 2 1 0 2 Y Y Y Y Y Y V N N 3 1 0 3 V NX vi VY ov Y X Vv ov 4 1 0 4 Y Y Y N y Y Y y Y estas 4 N SN TN MOI 6 pue 3 3 L3 YO SN ES LS E 1 1 1 EA se a SE 4 gps Tet E 4 III OTT 4 Y Y Y Y Y Y Y Y TA 1 1 4 v vy vi Vv X 6 Paes E TTT N N 3 1 2 0 lt _ 2_ a la L lt E m Az E H i lt 2 AR NJN Ne zz Lje lt Leje HE HH TE H E E SISSE E 4 lt __ 1 2 5 y y y y 1 3 0 v 4X v JN x Y EE v vy 4 1 3 1 Y Y y Y Y Y Y Y Y 5 1 3 2 x xc osx en v y V v V 6 1 3 3 y y v V y y V V y BEL RN 1 3 4 y v v vi y vI v 8 I 3 5 GA ea ee X d E 9 2 0 0 Y Y Y Y Y Y Y Y Y 2 lt lt a 2 va NJN ojo Nl Lje a l
2. OUT D 14 RICH_PARZ13 Status of capacity control 1 compressor 3 OUT D 15 RICH PARZ23 Status of capacity control 2 compressor 3 OUT D 16 COMP4 Status of compressor 4 OUT D 17 RICH PARZ14 Status of capacity control 1 compressor 4 OUT D 18 RICH PARZ24 Status of capacity control 2 compressor 4 OUT D 19 COMP5 Status of compressor 5 OUT D 20 RICH PARZ15 Status of capacity control 1 compressor 5 OUT D 21 RICH PARZ25 Status of capacity control 2 compressor 5 OUT D 22 COMP6 Status of compressor 6 OUT D 23 RICH PARZ16 Status of capacity control 1 compressor 6 OUT D 24 RICH PARZ26 Status of capacity control 2 compressor 6 OUT D 25 DINI Status of digital input 1 OUT D 26 DIN2 Status of digital input 2 OUT D 27 DIN3 Status of digital input 3 OUT D 28 DIN4 Status of digital input 4 OUT D 29 DINS Status of digital input 5 OUT D 30 DIN6 Status of digital input 6 OUT D 31 DINT7 Status of digital input 7 OUT D 32 DIN8 Status of digital input 8 OUT D 33 DIN9 Status of digital input 9 OUT D 34 DIN10 Status of digital input 10 OUT D 35 DINII Status of digital input 11 OUT D 36 DIN12 Status of digital input 12 OUT D 37 DIN13 Status of digital input 13 OUT D 38 DIN14 Status of digital input 14 OUT D 39 DINI5
3. APOE TL MP OLaLNQ a TPO OLS ALM TPN ol a lm st mf ol alm st n Ol a m st n Ol alm st OPO apPAL ap TPM OPap_ ALO SPOLOLaLA Mt nf ol a lm st n ol alm st a SII MINI NTN NINN OPO apm mM Ol Ol Ol OL OL OI SS SS SINT NI NI NINN MEM MPM NLM OL OLO OPO Ol Spas aaa NIE NT NI NEN NE OPO ape aya Ol Ol oO Ol Oo oO NINININI NINININI NINININI ALATA APO en en en en en cn en en on en ca ea on a a en on ea on pen ey ny SpE Sp TPT TPO OO HHH 46 cod Carel 030221991 rel 1 0 dated 27 07 01 FLSTDMFCOA pCO refrigeration system y y d d NX N E N 4 3 NI NI V N V N NI NI V y V y Y Y E E v NI Y Y Y V y v d Y J N y gt gt gt gt rep emL nb e oOl alm s vw ol alm s nj ol a m st n Ol alm st n Ol a m s najol a m st nf Ool alm st n SSSI MINI NI NIN NIN MOM MY MIE NO OL OL OO OPO SIS SPRINT NI NI NI NEN en en en en
4. Code Description PCOIOOPGLO Large backlit graphic display PCOI000CBB LCD backlit display 4x20 PCOIO00CBO LCD display 4x20 Terminal for plastic box for built in wall mounting Code Description PCOTOOPGHO Small backlit graphic display 64x128 pixels PCOT000CBO LCD display 4x20 PCOTOOSCBO LCD display 4x20 for connection to serial printer PCOT000CBB LCD backlit display 4x20 PCOTOO0L60 LED display 6 digits Terminal for IR32 plastic box 32x74 for built in mounting Code Description PCOT32RN00 LED display 3 digits Control interface card Code Description PCO2000AL0 LARGE with plug in connectors PCO2000AMO MEDIUM with plug in connectors PCO2000AS0 SMALL with plug in connectors PCO2000BLO LARGE with plug in connectors built in terminal PCO2000BMO MEDIUM with plug in connectors built in terminal PCO2000BS0 SMALL with plug in connectors built in terminal PCO2003AL0 LARGE with plug in connectors 3 SSR PCO2002AMO MEDIUM with plug in connectors 2 SSR PCO2001AS0 SMALL with plug in connectors 1 SSR Plug in connector kits Code Description PCO2CONOSO Screw version for pCO2 SMALL PCO2CONOMO Screw version for pCO2 MEDIUM PCO2CONOLO Screw version for pCO2 LARGE PCO2CONISO Spring version for pCO2 SMALL PCO2CONIMO Spring version for pCO2 MEDIUM PCO2CONILO Sp
5. 4 DZN Dead zone differential 5 DFNI_CP Dead zone differential Compressor inverter 6 DFNL F Dead zone differential Fan inverter 7 BL Proportional band 8 BLI CP Proportional band Compressor inverter 9 BLIF Proportional band Fan inverter 10 T ON CP Minimum compressor ON time 11 T_ON_CP Minimum compressor OFF time cod Carel 4030221991 rel 1 0 dated 27 07 01 35 6 PARAMETER TABLES 6 1 Default value FLSTDMFCOA pCO refrigeration system The following table provides a complete list of the values set as default parameters set by automatic installation In addition a column is available for the users to write their own settings Variable Description SET_COMP compressor set point DIFF COMP compressor differential MIN SET COMP minimum compressor set point limit default 1 0 limits can be set 9 9 99 9 MAX SET COMP maximum compressor set point limit 9 9 99 9 bar SET FAN fan set point DIFF FAN fan differential MIN SET FAN minimum fan set point limit can be set 9 9 99 9 MAX_SET_FAN maximum fan set point limit 25 0 9 9 99 9 bar SET VENT INV fan inverter set point DIFF VENT INV fan inverter differential 10 25 SG ORE COMP Compressor operating hour threshold 0 99999 THRESH HIGHI High inlet threshold 5 0 1 6 bar DIFF
6. m conf unit2 arse mi Comps rotation DISABLED Comps regulation PROPORTIONAL BAND Position on the board of the digital outputs for the first compressor Position on the board of the digital outputs for the fans If outputs are available and if the alarm relay has been enabled its position can be configured Logic of the digital inputs Normally open when there is no alarm the contact is open Logic of the remote On Off from digital input Normally open unit Off from digital input The type of reset for the high low pressure switch for each compressor can be set Automatic when the alarm stops the compressor starts this screen is only displayed if the high low pressure switches are enabled for each compressor Logic of the alarm relay This screen is not visible unless the alarm relay is enabled Enable FIFO rotation first on first off for the compressors Type of control used for compressor management Proportional band or Dead zone cod Carel 030221991 rel 1 0 dated 27 07 01 27 m conf unit3 Compressors regulation type P Integration time only P I f m conf unit4 Comps switch ON mode CppCppCpp Comps switch OFF mode ppCppCppC m conf unloader IT Unloaders Logic NORMALLY CLOSE l_________ m_conf_inverter mmy Inverter minimum Il opening 021000 Compres
7. This table summarises the inputs outputs and provides a short description of each As the inputs and outputs of the software are completely configurable the physical connection of the inputs and outputs changes according to which devices are configured also see the tables on the different configurations that can be set In addition the input output branch displays what devices are configured and how they are connected Analogue inputs Connector Code Description Type of analogue input J2 1 Bl Inlet pressure probe Universal analogue input 1 J2 2 B2 Outlet pressure probe Universal analogue input 2 J2 3 B3 Ambient temperature probe opt Analogue input 3 NTC J2 4 GND Common for analogue inputs J2 5 VDC 21Vdc power supply for active probes Imax 200mA J3 1 B4 Input can be configured by software passive analogue input 4 ON OFF J3 2 BC4 common for analogue input 4 J3 3 B5 Input can be configured by software passive analogue input 5 ON OFF J3 4 BC5 common for analogue input 5 J6 1 B6 Outside temperature probe opt analogue input 6 NTC J6 2 B7 General temperature probe opt analogue input 7 NTC J6 3 B8 universal analogue input 8 J6 4 GND common for analogue inputs J20 3 B9 Input can be configured by software Passive analogue input 9 ON OFF J20 4 BC9 Common for analogue input 9 J20 5 Passive analogue input 10
8. Thermal overload Klixon fan 2 J20 BC10 common analogue input 10 NTC 0 Analogue outputs 1 V 0 10V 0 20mA 4 20mA Table 6 3 3 1 connector code sade type of analogue output Description J4 power to optically isolated analogue output 24Vac Vdc J4 v 0 power to optically isolated analogue output OVac Vdc J4 a analogue output no 1 0 10V fan inverter J4 Y2 analogue output no 2 0 10V compressor inverter Table 6 3 3 2 Digital inputs connector code type of digital input Description J5 IDI digital input no 1 24Vac Vdc thermal overload comp 1 J5 ID2 digital input no 2 24Vac Vdc thermal overload comp 2 J5 ID3 digital input no 3 24Vac Vdc thermal overload comp 3 J5 1D4 digital input no 4 24Vac Vdc thermal overload comp 4 J5 ID5 digital input no 5 24Vac Vdc thermal overload comp 5 J5 ID6 digital input no 6 24Vac Vdc oil differential 1 J5 ID7 digital input no 7 24Vac Vdc oil differential 2 J5 ID8 digital input no 8 24Vac Vdc oil differential 3 J5 IDC1 common for digital inputs 1 to 8 J7 ID9 digital input no 9 24Vac Vdc oil differential 4 J7 IDIO digital input no 10 24Vac Vdc oil differential 5 J7 ID11 digital input no 11 24Vac Vdc High low pressure switch 1 J7 IDI2 digital input no 12 24Vac Vdc High low pressure switch 2 J7 IDC9 c
9. en cn AJAJAJ MPHIL MPHLMPMPWM MPM WMPMPW L MPM WM ee e e Se SeSe Sele Se e Se el Se e ele wo oOo wo oy Oo wo wo Carel reserves the right to modify or change its products without prior warning 47 cod Carel 030221991 rel 1 0 dated 27 07 01 Notes CAREL s E Technology amp Evolution CAREL srl Via dell Industria 11 35020 Brugine Padova Italy Tel 439 049 9716611 Fax 439 049 9716600 http www carel com e mail carel carel com Agency Cod Carel 4030221991 rel 27 07 01
10. ALARMI PROG branch stops the corresponding compressor manual reset Displayed if the input configured as the liquid level changes status for a set time screen M ALARMI PROG branch Display only manual reset cod Carel 03022199 rel 1 0 dated 27 07 01 30 General low pressure pressostat High pressure general pressotat Compressor 1 maintenance Outlet low pressure Outlet Inlet Inlet high pressure Configurable digital inputs num exceeded 00 Configurable devices number exceeded 00 FLSTDMFCOA pCO refrigeration system Displayed only if the general low pressure switch is activated All compressors will be stopped Alarm with automatic reset Displayed only if the general high pressure switch is activated All compressors will be stopped Alarm with manual reset Displayed only if the operating hours of compressor no exceed the limit Call service Display only Low outlet pressure pre alarm Displayed if the low outlet pressure limit is exceeded Goes off after a pre set time see screen M ALARM6 PROG branch Stops all the fans Automatic reset High outlet pressure pre alarm Displayed if the high outlet pressure limit is exceeded screen M ALARM5 PROG branch Starts all the fans Automatic reset Low inlet pressure pre alarm Displayed if t
11. J13 1 common relay 4 5 6 J13 2 normally open contact relay no 4 J13 3 Outputs can be configured by software see corresponding paragraph normally open contact relay no 5 J13 4 NO6 normally open contact relay no 6 J13 5 C4 common relay 4 5 6 J14 1 C7 common relay no 7 J14 2 NO7 Outputs can be configured by software see corresponding paragraph normally open contact relay no 7 J14 3 C7 common relay no 7 J15 1 NOS normally open contact relay no 8 J15 2 C8 Outputs can be configured by software see corresponding paragraph common relay no 8 315 3 NC8 normally closed contact relay no 8 J16 NO9 normally open contact relay no 9 J16 NO10 Outputs can be configured by software see corresponding paragraph normally open contact relay no 10 J16 NO11 normally open contact relay no 11 J16 C9 common relay no 9 J17 NO12 Outputs can be configured by software see corresponding paragraph normally open contact relay no 12 J17 C12 common relay no 12 J17 NC12 Outputs can be configured by software see corresponding paragraph normally closed contact relay no 12 J18 NO13 Outputs can be configured by software see corresponding paragraph normally open contact relay no 13 J18 C13 common relay no 13 J18 NC13 Outputs can be configured by software see corresponding paragraph normally closed contact relay no 13 J21 1 NO
12. ___ _____ ____J m_manuf420 4 Change passwords Manufacturer 0000 e Assistence 0000 User 0000 I10 m manuf425 Default values initialization N PLEASE WAIT FLSTDMFCOA pCO refrigeration system Minimum ON time for same compressor Minimum OFF time for same compressor Also see paragraph 3 3 1 Minimum time between two start requests for different compressors avoids simultaneous starts Minimum time between two effective starts of same compressor This parameter is displayed only if the capacity control steps are configured Delay between the request and the effective activation of the capacity control steps Minimum time between two starts of the same fan Minimum time between two stops of the same fans Minimum time between two start requests for different fans Avoids simultaneous starti Supervisor configuration Enters the identification number of the pCO board for the supervisor serial network communication speed with the supervisor system type of conversion protocol changes the password for access to the various branches Deletes the entire permanent memory and resets the default values N B This operation should be performed when the machine is off cod Carel 03022199 rel 1 0 dated 27 07 01 29 FLSTDMFCOA pCO refrigeration system 3 5 10 ALARM button branch If there are no active alarms or alarms in the memory e the buzzer is off e alarm
13. display only AL28 maintenance comp 4 manual no display only AL29 maintenance comp 5 manual display only AL30 maintenance comp 6 manual no display only AL31 pre alarm low outlet pressure all fans OFF automatic no AL32 pre alarm high outlet pressure all fans ON automatic AL33 pre alarm low inlet pressure all comps OFF automatic AL34 pre alarm high inlet pressure all comps ON automatic AL35 Exceeded max no inputs avail automatic no display only AL36 Exceeded max no devices automatic display only AL37 Clock fault or battery discharged Disable time bands manual AL38 probe 1 fault or disconnected no of comps ON manual can be set AL39 probe 2 fault or disconnected no of fans ON can manual no be set Table 2 5 1 Alarms with automatic reset When one or more automatic reset alarms are detected these are signalled by e red LED below the ALARM button on e buzzer active with external terminal e the alarm relay changes status the logic can be set in the manufacturer branch general parameters screen M CONF LOGIC AL if enabled manufacturer branch unit configuration screen M CONF DEV04 Pressing the ALARM button silences the buzzer and displays the alarm codes If the cause of the alarms is resolved the devices that have shut down will restart normal operation and the status of the signal devices changes as follows e the alarm relay c
14. 1 capacity control step per compressor Liquid level alarm and On Off from digital input Analogue inputs code type of analogue input Description connector J2 Bl universal analogue input 1 inlet pressure probe J2 B2 universal analogue input 2 outlet pressure probe n GND J2 VDC 21Vdc power supply for active probes 14 2 200mA J3 B4 passive analogue input 4 NTC PT1000 ON OFF general low pressure switch J3 BC4 common for analogue input 4 33 general high pressure switch J3 BC5 common for analogue input 5 NTC 0 1V 0 10V 0220mA 4 20mA Table 6 3 2 1 Analogue outputs connector code type of analogue output Description J4 VG power to optically isolated analogue output 24Vac Vdc J4 VGO power to optically isolated analogue output OVac Vdc J4 Y1 analogue output no 1 0 10V fan inverter J4 Y2 analogue output no 2 0 10V compressor inverter Table 6 3 2 2 cod Carel 030221991 rel 1 0 dated 27 07 01 42 Digital inputs FLSTDMFCOA pCO refrigeration system connector code type of digital input Description ID1 digital input no 1 24Vac Vdc thermal overload comp 1 ID2 digital input no 2 24Vac Vdc thermal overload comp 2 J5 ID3 digital input no 3
15. 17 00 to 6 00 the Set Point will be 0 8 bar Table 2 4 1 1 Four time bands can be set and in the case where one or more are not used it is important to attribute these the same values as the previous band so as to not compromise the correct operation of the control 2 4 20 Force devices The individual devices can be activated manually without the time settings rotation and irrespective of the values measured by the probes The only support to the control in manual operation is the alarm management The manual activation of the inverter devices forces the corresponding analogue outputs to the set value The manual procedure can be activated only if the unit is OFF therefore the parameters are not enabled if the unit is ON In any case the procedure finishes automatically after 5 minutes See MAINT branch button 2 4 3 Auxiliary probe management The software can manage as well as the inlet and outlet probes three auxiliary NTC display only probes these are enabled on the screen M CONF PROBEA The three probes are B3 ambient temperature probe B6 outside temperature probe Medium and Large boards only B7 general temperature probe the name can be set Medium and Large boards only Once enabled the value of these probes can be seen in the I O branch Note if the inlet probe is connected to B7 the general temperature probe cannot be enabled 2 5 Alarm management The unit checks all the procedures of the individual al
16. 24Vac Vdc thermal overload comp 3 J5 1D4 digital input no 4 24Vac Vdc thermal overload comp 4 J5 ID5 digital input no 5 24Vac Vdc oil differential 1 J5 ID6 digital input no 6 24Vac Vdc oil differential 2 J5 ID7 digital input no 7 24Vac Vdc oil differential 3 J5 ID8 digital input no 8 24Vac Vdc oil differential 4 J5 IDC1 common for digital inputs 1 to 8 J7 ID9 digital input no 9 24Vac Vdc Liquid level J7 ID10 digital input no 10 24Vac Vdc On Off from digital input J7 ID11 digital input no 11 24Vac Vdc Thermal overload Klixon fan 4 J7 IDI2 digital input no 12 24Vac Vdc Thermal overload Klixon fan 3 J7 IDC9 common for digital inputs 9 to 12 J8 IDI3 digital input 13 24Vac Vdc Thermal overload Klixon fan 2 J8 IDC13 common for digital inputs 13 and 14 J8 IDI4 digital input 14 24Vac Vdc Thermal overload Klixon fan 1 Table 6 3 2 3 Digital outputs connector code type of digital output Description J12 C1 common relay 1 2 3 J12 NOI normally open contact relay no 1 Compressor 1 J12 capacity control 1 compressor 1 J12 NO3 _ normally open contact relay no 3 Compressor 2 J12 C1 common relay 1 2 3 J13 C4 common relay 4 5 6 J13 NO4 capacity control 1 compressor 2 J13 NOS _ normally open contact relay no 5 Compressor 3 J13 NO6 normally open contact relay no 6 capacity control 1 compressor 3 J13 C4 common relay 4 5 6 114 J14 NO7 normally open contact relay no 7 C
17. Enter the password default 1234 and press ENTER to confirm Move to the last row INITIALISATION gt and press ENTER Press the UP button The M DEFAULT screen will be displayed Select the configuration model required Press ENTER and UP the text PLEASE WAIT will be displayed for a few seconds this mode deletes the permanent memory and enters the manufacturer values defined by Carel so as to speed up the work of the installer nm Av cod Carel 030221991 rel 1 0 dated 27 07 01 1 FLSTDMFCOA pCO refrigeration system NOTE The default values differ depending on the type of board used To see the parameters installed please refer to Default value Configuration examples to see on which inputs outputs the devices are configured and which models are covered by the various configurations If some standard values are not correct for the required application the user can always change them by accessing the screen from the supervisor making the machine customisable according to the specific application The fundamental parameters to be checked are e the number of devices and their configuration the language used e the control parameters Set Point time settings alarm thresholds etc AII the data set is stored in permanent memory to prevent it being lost when the machine is not powered Using the program WINLOAD the permanent memory can be read and saved to file for subsequent programming In th
18. ON OFF J20 6 BC10 Common for analogue input 10 NTC 0 1 V 0 10V 0 20mA 4 20mA Table 1 5 1 Analogue outputs Connector Code Description Type of analogue output J4 1 VG power to optically isolated analogue output 24Vac Vdc J4 2 VGO power to optically isolated analogue output OVac Vdc J4 3 YI analogue output no 1 0 10V J4 4 Y2 Compressor controller analogue output no 2 0 10V J4 5 Y3 analogue output no 3 0 10V J4 6 Y4 analogue output no 4 0 10V Table 1 5 2 Digital inputs Connector Code X Description Type of digital input J5 1 ID digital input no 1 24Vac Vdc 15 2 ID2 digital input no 2 24Vac Vdc J5 3 ID3 digital input no 3 24Vac Vdc pee IDAs T Inputs can be configured by software see corresponding paragraph digital input nO AAN AUNE J5 5 ID5 digital input no 5 24Vac Vdc J5 6 ID6 digital input no 6 24Vac Vdc J5 7 ID7 digital input no 7 24Vac Vdc J5 8 ID8 digital input no 8 24Vac Vdc J5 9 IDC1 common for digital inputs from 1 to 8 7 1 1D9 digital input no 9 24Vac Vdc J7 2 ID10 digital input no 10 24Vac Vdc 773 IDII Inputs can be configured by software see corresponding paragraph digital input no 11 24Vac Vdc J7 4 ID12_ digital input no 12 24Vac Vdc J7 5 IDC9 common for digital inputs from 9 to 12 J8 1 ID13H digital inp
19. RERO ee ete 37 6 2 2 Digital variables 5 ep KAA 37 6 2 3 Integer variables ponto te e E ehe uo e eii nana 39 6 3 Examples innesto funa nale Gian Seb REO pnm re OD IPODepi eR De Dp ene pen Deren 41 6 3 1 Example of SMALE configuratiohi using asl 41 6 3 2 Example of MEDIUM configuration nr iet ee pere aio la nora 42 6 3 3 Example of LARGE Configuration iaia ee ted dete desde cie ie dee tid ree des 43 6 4 Possible configurations eet Ur en jakki tion ilma ae nete j uka i este ctn daa 45 FLSTDMFCOA pCO refrigeration system 1 THE PROGRAM 1 1 Introduction This program allows the management of a refrigeration system with the following characteristics e display and control of the values measured e management of between one and six compressors depending on the number of outputs with between zero and three capacity control steps each and between one and five condensation stages configuration of the devices being controlled display of alarms by LCD display and audible signal programming of the configuration parameters and a number of operating parameters with password protected access availability of three levels of access to the parameter setting screens controlled by three different passwords modification of the fundamental operating parameters set point differentials alarm thresholds time settings programming of the time bands and control of the compressors with a second set point to allow e
20. Status of digital input 15 OUT D 40 DIN16 Status of digital input 16 OUT D 41 DIN17 Status of digital input 17 OUT D 42 DIN18 Status of digital input 18 OUT D 43 ALL PRES LPRES Low pressure switch alarm OUT D 44 ALL PRES HPRES High pressure switch alarm OUT D 45 DIN101 Status of digital input expansion no 1 OUT D 46 DIN102 Status of digital input expansion no 2 OUT D 47 DIN103 Status of digital input expansion no 3 OUT D 48 DIN104 Status of digital input expansion no 4 OUT D 49 DIN105 Status of digital input expansion no 5 OUT D 50 DIN106 Status of digital input expansion no 6 OUT D 51 DIN107 Status of digital input expansion no 7 OUT D 52 DIN108 Status of digital input expansion no 8 OUT D 53 MALL_TERM_KLIX1 Thermal overload alarm compressor 1 OUT D 54 MALL_TERM_KLIX2 Thermal overload alarm compressor 2 OUT D 55 MALL TERM KLIX3 Thermal overload alarm compressor 3 OUT D 56 MALL TERM KLIX4 Thermal overload alarm compressor 4 OUT D 5 1 MALL TERM KLIX5 Thermal overload alarm compressor 5 OUT D 58 MALL TERM KLIX6 Thermal overload alarm compressor 6 OUT D 59 MALL PRES HI High low pressure switch alarm compressor 1 OUT D 60 MALL PRES H2 High low pressure switch alarm compressor 2 OUT D 61 MALL PRES H3 High low pressure switch alarm compressor 3 OUT D 62 MALL PRES H4 High low pressure switch alarm compressor 4 OUT D 63 MALL PRES H5 Hig
21. and so on also see manufacturer branch unit configuration screen M CONF OUT1 without needing to modify the electrical system and in any case freely deciding upon the use of the outputs Language selection The user can easily set the language used on the screens To do this go to the main screen M MAIN MENU and press the PROG button for Built in terminals press the PROG button then move to the row PROG BRANCH gt and press ENTER then enter the password default 0 and press the ENTER button until the desired language appears Note 1 the software currently manages three languages Italian English French Note 2 the user may at any moment change language without needing to place the unit in Standby cod Carel 4030221991 rel 1 0 dated 27 07 01 2 FLSTDMFCOA pCO refrigeration system Machine On Off There are various ways to activate or deactivate the control and the management of the various devices with related alarms in order of priority l from the alarms the screen M PROGI2 can be used to select if a faulty probe alarm is to turn the unit off or not 2 from the supervisor the screen M PROGI2 PROG branch is used to enable shut down from the supervisor 3 from digital input if configured M CONF DEV06 configuration branch in addition to the screen M LOGIC ONOFF configuration branch the logic can be selected 4 from the keypad if enabled on the screen M ON OFF UNITA maintenance branch pressing t
22. bh ei m te ert ESTIR EEHEHE ESE 16 3 5 2 MAINT button maintenance branch 17 3 5 3 PRINTER button branch terret e eei rode eb eer retine itn e pef eee edes 19 3 5 4 I O button input output status branch iii 19 3 5 5 Clock branch ue eR Dae E EE uses RUN OR E RUE n d I Ee 21 3 5 6 SET button set pomt branchi ee ERE TERR n E Ooh sob aud be En EHE ERE SER e eb cu baee bed 21 3 5 7 PROG button Oran hy EE 22 3 5 8 INFO button btratich iaia iena EE os Lives coh be ERUIT ERE p ebbe ELSE LE 24 3 5 9 MENU PROG buttons unit configuration branch ii 24 3 5 10 ALARM vbutton branch eene tere eee eet P EO Re HH e ee eee adire cr Me ee e Rep eget 30 3 39 11 ON OFF button branch 5 gu eT Aet LOSANNA 32 3 9 12 Wop branch 325 epo Ls KULA Ee REI E 32 pco INSTRUMENT AND ACCESSORY CODES eese eeeeeee eene enne sere re cere nese nine e ea zece nice nese nese ees nere nere nese neczezenete 33 PARAMETER DEFINITION TABLE eeeeeeee esee eee ze rece ce cene eine eee nere nice nese eee ee ze zece nese nese nese eene eee eine senese nere issos 35 6 PARAMETER TABLES 36 6 1 Default value erum eee tese bee helle iaia lea lilla eben suisa 36 6 2 Variables for communication with the supervisor e 37 6 2 1 Analogue variables sick siasi oh ded
23. connected OUT I 32 BIOS RELEASE version of bios used OUT I 33 BIOS DATE date of bios used OUT I 34 BOOT RELEASE version of boot used OUT I 35 BOOT DATE date of boot used IN OUT I 36 INTEGR TIMEI integration time IN OUT I 37 TIME SWITCH ONI Delay in calling compressor starts dead zone IN OUT I 38 TIME SWITCH OFFI1 Delay in calling compressor stops dead zone IN OUT I 39 TIME MIN ON Minimum compressor ON time IN OUT 1 40 TIME MIN OFF Minimum compressor OFF time IN OUT I 41 TIME BETW COMP Delay time between starts of different compressors IN OUT I 42 TIME SAME COMP Delay time between starts of same compressor IN OUT I 43 UNLOAD DELAY Delay in capacity control steps IN OUT I 44 TIME SWITCH ON2 Delay in calling fan starts dead zone IN OUT I 45 TIME SWITCH OFF2 Delay in calling fan stops dead zone IN OUT I 46 TIME BETW FAN Delay time between starts of different fans IN OUT I 47 RIT DIF OLIO Delay in oil differential alarm at start IN OUT I 48 RIT ALL LIQ Delay in liquid level alarm IN OUT I 49 MIN OPEN INV Minimum compressor inverter opening IN OUT I 50 MIN OPEN INV2 Minimum fan inverter opening IN OUT I 51 MIN N COMP AL number of compressors forced with probe B1 faulty or disconnected IN OUT I 52 MIN N FAN AL number of fans forced with probe B2 faulty or disconnected IN OUT I 53 SG ORE COMP Compressor operating hour threshold by
24. diff Fans diff m diff inverter RAMA 7 Change Inverter diff Comps inv Fans inv 1 m_password_set a EEA Change user password 3 5 7 m_password_prog Program loop Insert user password li m_language IZ Language used ENGLISH ENTER to change language m prog02 pM Max comps setpoint 00 0bar Min comps setpoint 00 0bar l___i FLSTDMFCOA pCO refrigeration system Entering the user password accesses the protected branch This screen is displayed only if the inverter is enabled and is working in the dead zone Sets a deviation from the compressor Set Point and the increase per second of the inverter This screen is displayed only if the inverter is enabled and is working in the dead zone Sets a deviation from the fan Set Point and the increase per second of the inverter This screen is used to set the differentials This screen is used to set the inverter differentials if working in the proportional band and if enabled Modifies the user password PROG button branch Entering the correct password accesses the following setting screens This screen changes the language used on the screens in the application the number of languages available depends on the type of installation performed Sets the upper and lower limit for the compressor Set Point cod Carel 030221991 rel 1 0 dated 27 07 01 22 m prog03
25. fan EN INV COMP Compressor inverter cod Carel 030221991 rel 1 0 dated 27 07 01 36 EN KEYB ON OFF Enable off from keypad Yes No STOP SONDE Off from probe fault No Yes No EN OFF SUPERVISOR Enable on off from supervisor No Yes No input logic INPUT LOGIC Input logic N C UNLOAD LOGIC Capacity control step logic N C TYPE UNIT Type of system TN LT NT TYPE_FREON Type of freon R22 R22 R134a R404a NH3 R12 BAUD_RATE Communication baud rate 19200 19200 bps IDENT Identification number for supervisor 1 NEW_PASS_UTENTE User password 0000 NEW_PASS_MANU Service password 0000 0 9999 NEW PASS COST Manufacturer password 1234 0 9999 FSC_MIN_MAND Minimum outlet d bar FSC_MAX_MAND Maximum outlet 19 bar FSC MIN ASP Minimum inlet 3j bar ESC MAX ASP Maximum inlet 19 2 bar Table 6 1 1 FLSTDMFCOA pCO refrigeration system 6 2 Variables for communication with the supervisor The pCO can be connected to a local or remote supervisory telemaintenance system for controlling the unit The accessories for the pCO board include an optional serial communication board using an RS485 interface In this version of the software the baud rate can be set to 1200 2400 4800 9600 or 19200 bps The variables sent and received by the supervisor are shown in the tables Tab 6 2 1 1 Tab 6 2 2 1 Tab 6 2 3 1 with reference to the
26. i 1 l Introd ction LLL olk AKA ca yes chick bees eee ede diva li Eilat bia 1 L2 GeneraldesctptioDn sire tenia repete oet ei epi e e re edt e re p ER E Ee ir re Pers 1 1 35 Starting the machine se be D Ue RU re kaak cien alal aaa lignano 1 1 3 1 Initialising the parameters in the permanent Memory 1 1 3 2 Ba ic conflguratloN 1 12 E x M 2 1 4 The Supervisor Networks E 3 1 4 1 Serial boards as Leap ee e titii EU ORE 3 1 4 2 Communication protocols 2 eerte a ie eden eee eoe eerie secte 3 1 5 Meaning of the pCO inputs OUtputs neen nein nein eret enne enne enne trennen ne tenete nete en trennen nnn 4 MAIN SETTINGS ree eeeoseo eun ceto oro toe eru Eo ouo S Uo HIR HERE A I PRIA I E RI O 6 24 JDeadzone 2 aceti ARP GR he tete ere rer t RealSports 6 2 1 1 Proportional band o eno mee pp relire ote tee ie ede er iem eret tie 6 2 2 Compressor managemebt xi E rire oe ep ed et en e re ene p p eei rete rd e ie i foga 6 2 2 1 ON OFF compressor management without inverter enne nre nennen nennen nennen nenne 7 212 2 Compressor management with inverter e 7 2 23 Compressor parameters iatale dona IE re tuner E EE cold Re LL taha k lakas geret 8 2 2 4 Compressor time settings a si ee e etuer est LGR piece eire eame od
27. input 18 OUT I 97 CONFIG OUTI Type of device connected to output 1 OUT I 98 CONFIG OUT2 Type of device connected to output 2 OUT I 99 CONFIG_OUT3 Type of device connected to output 3 OUT I 100 CONFIG OUT4 Type of device connected to output 4 OUT I 101 CONFIG OUT5 Type of device connected to output 5 OUT I 102 CONFIG OUT6 Type of device connected to output 6 OUT I 103 CONFIG OUT7 Type of device connected to output 7 OUT I 104 CONFIG OUT8 Type of device connected to output 8 OUT I 105 CONFIG_OUT9 Type of device connected to output 9 OUT I 106 CONFIG OUT10 Type of device connected to output 10 OUT I 107 CONFIG OUTII Type of device connected to output 11 OUT I 108 CONFIG OUT12 Type of device connected to output 12 OUT I 109 CONFIG OUT13 Type of device connected to output 13 OUT I 110 CONFIG OUT14 Type of device connected to output 14 OUT I 111 CONFIG OUTIS Type of device connected to output 15 OUT I 112 CONFIG OUTI6 Type of device connected to output 16 OUT I 113 CONFIG OUT17 Type of device connected to output 17 OUT I 114 CONFIG OUT18 Type of device connected to output 18 Table 6 2 3 1 6 3 Examples The versatility of the instrument means that it can be programmed in a number of ways depending on the characteristics of the system being controlled and the type of board used For this reason the following tables
28. on off from digital input priority over keypad command enable liquid level alarm from digital input display only Enable auxiliary probes display only enable NTC ambient temperature probe enable NTC outside temperature probe medium or large board only enable general NTC temperature probe medium or large board only In the following two screens the type of inlet and outlet probe connected can be configured Type of analogue probes c Carel NTC temperature probes 50 100 C R T 10KQ at 25 C gt Voltage 0 1Vdc or 0 10Vdc c Current 0 20mA or 4 20mA m_conf_probel Inlet probe type NTC Board In wiring B1 ee defines the type of inlet probe connected defines the position of the inlet probe B1 or B7 for Medium or Large boards only note if positioned at b7 the NTC general temperature probe cannot be configured cod Carel 030221991 rel 1 0 dated 27 07 01 25 FLSTDMFCOA pCO refrigeration system m conf probe2 rca defines the type of outlet probe connected outlet probe type NTC Board In wiring B2 eo m_conf_probe3 Sets the limits for the inlet probes n press end scale defines the position of the outlet probe B2 or B8 for Medium or Large boards only Sets the limits for the outlet probes in 00 0 Max 00 0 m_conf_freon Type of freon 2 Min 00 0 Max 00 0 out press end scale M sets the type of freon used use
29. rotation can be selected the first on is the first off Compressor and fan control Manufacturer branch general parameters screen M CONF UNITO2 M CONF UNIT06 Dead zone see Dead zone or proportional band control see Proportional band can be selected Type of compressor control Manufacturer branch general parameters screen M CONF UNITO3 Can be proportional or proportional plus integral only in proportional band e Proportional control Based on the set point entered SET branch screen M_SET_COMP a proportional band is calculated the width of which is equal to the differential set SET branch screen M DIFF DEVICE The positions of the control stages of the devices are calculated within this band according to the number of compressors configured and any capacity control steps e Proportional and integral control Proportional plus integral control uses the same parameters as for just proportional calculating the device activation steps according to the set point differential and the integration time set Manufacturer branch general parameters screen M CONF UNIT03 The integral action is doubled if the conditions do not vary after the set time Number of compressors forced on with probe 1 fault Manufacturer branch general parameters screen M CONF UNIT5 If the probe 1 failure or not connected alarm is activated BROKEN PROBE LI this parameter indicates the minimum number of compressors forced on cod Carel 03022199
30. the buzzer If the button is lit red at least one alarm has been G v activated if the LED is flashing an alarm with automatic reset has passed 3 The UP ARROW has two functions e Scroll the various screens when the cursor is in the top left of the Fig 3 3 1 1 display e Ifthe cursor is inside a numeric field the button increases or decreases the corresponding value If the field is a selection pressing the button displays the available options not back lit The DOWN ARROW see the UP arrow ENTER button used to move the cursor around the screens and to save the values of the set parameters The button is constantly back lit yellow to indicate that the power is on eds 3 4 Built in terminal Layout of the buttons on the keypad for the version with built in display AD pCO built in terminal ALARM PROG ESC UP DOWN ENTER cod Carel 030221991 rel 1 0 dated 27 07 01 15 FLSTDMFCOA pCO refrigeration system 3 4 1 Use ofthe buttons on the Built in terminal Button Description ALARM Has the same functions as the button on the external terminal R UP DOWN Have the same functions as on the external terminal ENTER This button has the same functions as the button on the external terminal while el the LED under the button indicates that the unit is on ESC Returns to the previous branch ESC PROG Accesses the menu screen M MENU 1 for entering the var
31. 1 inlet broken or not connected alarm AL38 forces a number of compressors on controlled in any case by the individual alarms and by the general pressure switches Enable FIFO rotation first on first off for the fans Type of control used for fan management Proportional band or Dead zone In the event of a probe b2 outlet broken or not connected alarm AL38 forces a number of fans on controlled in any case by the individual alarms and by the general pressure switches These parameters are displayed only if dead zone control is set for the compressors Time between compressor start requests Time between compressor stop requests cod Carel 03022199 rel 1 0 dated 27 07 01 28 m comp timing02 ll Minimum compressors power on time 0000s Minimum compressors power off time 0000s M m comp timing03 roc Compressors Min time between different start 0000s L m comp timing04 Compressor Min time between same start 0005 DJD m comp timingO05 SH Unloaders Switching On delay time l m_time_fan_1 Fans switching ON delay time 0005 Fans switching OFF delay time 0005 l____i m time fan 2 pM Fans Min time between different start 000s Initialisation m conf supervl l A FA Supervisor system Identification N 00 Com Speed 1200 bau Protocol type CAREL l___ __
32. 1000 OUT I 54 HOUR COMPI High part operating hours compressor 1 OUT I 55 HOUR L COMPI Low part operating hours compressor 1 OUT I 56 HOUR COMP2 High part operating hours compressor 2 OUT I 54 HOUR L COMP2 Low part operating hours compressor 2 OUT I 58 HOUR COMP3 High part operating hours compressor 3 OUT I 59 HOUR L COMP3 Low part operating hours compressor 3 OUT I 60 HOUR_COMP4 High part operating hours compressor 4 OUT I 61 HOUR L COMP4 Low part operating hours compressor 4 OUT I 62 HOUR COMP5 High part operating hours compressor 5 OUT I 63 HOUR L COMP5 Low part operating hours compressor 5 OUT UER 64 HOUR_COMP6 High part operating hours compressor 6 OUT I 65 HOUR L COMP6 Low part operating hours compressor 6 OUT I 66 H HOUR FANI High part operating hours fan 1 OUT I 67 L HOUR FANI Low part operating hours fan 1 OUT al 68 H_HOUR_FAN2 High part operating hours fan 2 OUT I 69 L HOUR FAN2 Low part operating hours fan 2 OUT I 70 H HOUR FAN3 High part operating hours fan 3 OUT I 71 L HOUR FAN3 Low part operating hours fan 3 OUT I 72 H HOUR FAN4 High part operating hours fan 4 OUT I 73 L HOUR FAN4 Low part operating hours fan 4 IN OUT I 74 SG ORE FAN Fan maintenance threshold alarm by 1000 OUT I 75 VERSION version application OUT I 76 H_HOUR_FANS High part operating hours fan 5 OUT I 7 L HOUR FAN5 Low part operati
33. 14 Outputs can be configured by software see corresponding paragraph Normally open contact relay no 14 J21 2 C14 Common relay no 14 21 3 NC14 Normally closed contact relay no 14 J21 4 NO15 Outputs can be configured by software see corresponding paragraph Normally open contact relay no 15 J21 5 C15 Common relay no 15 J21 6 NCIS Outputs can be configured by software see corresponding paragraph Normally closed contact relay no 15 122 1 cle Common relay 16 17 18 J22 2 NO16 Normally open contact no 16 J22 3 NO17 Outputs can be configured by software see corresponding paragraph Normally open contact no 17 J22 4 Normally open contact no 18 22 5 Common relay 16 17 18 cod Carel 4030221991 rel 1 0 dated 27 07 01 5 Table 1 5 4 FLSTDMFCOA pCO refrigeration system 2 MAIN SETTINGS 2 1 Dead zone This setting determines a zone in which no device is activated or deactivated as a consequence minimising rapid changes in the system pressure and thus stabilising its behaviour The devices are activated when the measured value exceeds the dead zone measured value greater than SP DZN see Figure 1 The number of devices to be activated varies according to the time elapsed in this situation The controller checks the parameter TIME SWITCH ONI configuration branch times screen M COMP TIMINGOI used to measure the minimum time to remain in the zone for requesting the activation of a fu
34. 2 N_SUPERV_ONOFF Enable ON OFF from supervisor T 113 E EN_AL_LIQUID_LEVEL Enable liquid level alarm 114 115 116 z TE eiii OIGIDID FANS MALL_TERM_VENTS EN_KEYB_ON_OFF Status of fan 5 Thermal overload alarm fan 5 Enable On Off from the keypad 117 EN_ALARM_RELE Enable alarm relay 118 3 Z e e 5 i vii EN_ON_BALCK_OUT Enable delay at restart after Black Out T 119 DOUTI Status of digital output 1 T 120 DOUT2 Status of digital output 2 OUT D 121 DOUT3 Status of digital output 3 OUT D 122 DOUT4 Status of digital output 4 OUT D 123 DOUTS Status of digital output 5 OUT D 124 DOUT6 Status of digital output 6 our D 125 DOUT7 Status of digital output 7 OUT D DOUT8 Status of digital output 8 OUT D 127 DOUT9 Status of digital output 9 OUT D 128 DOUTIO Status of digital output 10 our D 129 DOUTII Status of digital output 11 our D 130 DOUTD2 Status of digital output 12 OUT D 131 DOUT13 Status of digital output 13 OUT D 132 DOUTI4 Status of digital output 14 OUT D 133 DOUT15 Status of digital output 15 OUT D 134 DOUT16 Status of digital output 16 OUT D 135 DOUTI7 Status of digital output 17 OUT D 136 DOUT18 Status of digital output 18 Table 6 2 2 1 6 2 3 Integer variables Flow Type Index Variable name Desc
35. HIGHI High inlet differential 0 1 2 THRESH HIGH2 High outlet threshold DIFF HIGH2 High outlet differential THRESH LOWI Low inlet threshold DIFF LOWI Low inlet differential THRESH LOW2 Low outlet threshold ABIL ROTAZ COMP FIFO rotation compressors 3 LARGE board DIFF LOW2 Oil differential alarm delay s RIT ALLARMI Alarm relay delay s RIT_DIF_OLIO Liquid level alarm delay at start s RUN_DELAY_OILD Liquid level alarm delay when running s TIME_SWITH_ON1 Compressor start request delay 10 360 s TIME SWITH OFFI Compressor stop request delay 10 10 360 s TIME_MIN_ON Minimum compressor ON time 10 360 S TIME MIN OFF Minimum compressor OFF time 120 S TIME BETW COMP Time between two starts of different compressors 0 9999 S TIME SAME COMP Time between two starts of the same comp 360 240 600 s UNLOAD_DELAY Capacity control step delay time 0 999 S TIME SWITH ON2 Time between fan starts ZN s TIME_SWITH_OFF2 Time between fan stops ZN s TIME BETW FAN Time between two starts of different fans 5 0 999 s 4 SMALL board N COMP Number of compressors 4 MEDIUM board 1 6 5 LARGE board 1 SMALL board TYPE INPUT X COMP _ Type of inputs per compressor 2 MEDIUM board EN INV FAN Fan inverter EN ROT FAN FIFO rotation fans N VENT Number of fans 4
36. INT PRINT W O CLOCK SET PROG VERSION HEAT COOL ON OFF ALARM UP DOWN ENTER cod Carel 030221991 rel 1 0 dated 27 07 01 14 FLSTDMFCOA pCO refrigeration system 3 3 1 Use of the buttons on the external terminal Button Description Pressed once returns to the main screen M mean menu MENU Pressed again goes to the screens for accessing the various branches m menu 1 S MAINT displays the values corresponding to the maintenance of the devices operating hours of the devices and reset hour counter accesses the manual operation procedure PRINTER accesses the group of screens for printer management not featured in this application vO displays the status of the digital and analogue inputs and outputs and the input output configuration sets the Set Point and differentials CLOCK displays sets the clock and of the time bands PROG sets the various operating parameters thresholds delays etc MENU PROG pressing these buttons at the same time accesses the machine configuration INFO displays the version of the software application and other information on the machine Table 3 3 1 1 External silicon rubber buttons 1l ON OFF button switches the machine on and off The green LED on the button indicates if the machine is on if the LED is off the unit is OFF 1 2 3 4 5 2 ALARM button used to display the alarms to perform manual resets and to silence
37. Rechargeable battery module for EVD 0907930AXX Net filter for EVD driver 0907858AXX Ferrites toroid Carel network RS485 2 wires Code Description IR32SEROOE Serial card RS485 2 wires for IR32 refrigeration old version and universal IRDRSEROOE Serial card RS485 for IRDR IR96 MasterCella PJOPZ48500 Additional module for RS485 optoinsulated for PJ32 PCO2004850 Optically isolated RS485 serial connection board for pCO2 PCOSER4850 Serial card RS485 2 wires for pCO MCHSMLSERO RS 485 serial card remote terminal interface for chiller Compact PC485KIT00 Serial Converter RS485 RS232 including serial cable for connection to PC PC485KITNO Serial Converter RS232 RS485 without transformer 09C425A017 Transformer for PC485KITNO Accessories Code Description S9IOCONN002 0 8m cable telephone connector S90CONNO000 1 5m cable telephone connector S90CONNOOI 3m cable telephone connector S90CONN003 6m cable telephone connector TCONN60000 T device connection T connectors with the possibility of an earth connection and screw connectors for shielded cable cod Carel 4030221991 rel 1 0 dated 27 07 01 34 FLSTDMFCOA pCO refrigeration system S PARAMETER DEFINITION TABLE Below is a list of the codes used in the figures in this manual NO Code 1 SP Set Point 2 RP Read parameter 3 DF _ Differential
38. alarm threshold for low outlet pressure with corresponding differential and delay Management of alarm times delay in the activation of the liquid level alarm if configured Delay at unit start up after black out Enable delay at start Used to diversify the restart times for various units when power returns after a black out cod Carel 03022199 rel 1 0 dated 27 07 01 23 FLSTDMFCOA pCO refrigeration system m progiZ2 Enable to unit shut down due to Swich OFF unit mode OFF by supervisor N Probes faulty N i m change pass3 Change user password supervisor inlet or outlet probe broken Changes the user password 3 5 8 INFO button branch This group of screens is accessed by pressing the INFO button The screens provide information on the characteristics of the system the software installed and the date of the most recent maintenance performed m info01 STANDARD CAREL Code date version of the application COD FLSTDMFCOA Version 1 106 09 MAR 2000 l o___ m info02 rmm Supply voltage 22 0V Supply voltage to the pCO board Bios 02 27 01 01 0 the version and the date of the Bios and Boot Boot 02 02 01 01 0 L m info03 Last maintenance Screen displaying the last maintenance performed date 00 00 00 the type of refrigerant used lcs type SMALL the type of board used Freon type R22 and the typ
39. alue 1234 new user service and manufacturer password and the entering of the default values Table 1 2 1 There is a fixed password that accesses any branch and is set during programming FIXED PASSWORD 1234 IMPORTANT WARNING to avoid tampering during the operation of the machine only qualified personnel must know the manufacturer password In particular the manufacturer and fixed password are used in the preliminary phases of installation and when the setting screens protected by the other passwords cannot be accessed 1 3 Starting the machine 1 3 1 Initialising the parameters in the permanent memory The first time that the pCO is used the data in the permanent memory should be initialised to prevent the use of incorrect for the required control functions For this reason the first time the pCO is used and any time the software release is upgraded the default values should be entered This is performed automatically the fist time the program is run To perform the same procedure at any other time follow these steps 1 Turn the pCO on after a certain time in which the check routine is run the pCO will display the main screen M MAIN MENU During the first installation IGNORE the alarms as these may be the result of incorrect data in the permanent memory Press the MENU PROG buttons to display the password setting screen This screen prevents access to the configuration branch by unauthorised persons
40. an be defined the possible choices are as follows general one safety device only per compressor not delayed with manual reset B thermal overload oil differential one input dedicated to the thermal overload not delayed with manual reset and one input dedicated to the oil differential delayed with manual reset C thermal overload high low pressure switch one thermal overload input immediate with manual reset while the pressure switch is immediate with reset set on the screen M TYPE RES HL P general parameter configuration branch D thermal overload oil differential high low pressure switch includes all three types of alarm The user can decide which inputs to use for the various safety devices Example If input 6 is used for the compressor 1 thermal overload switch simply go to the screen M CONF INOUT 1 configuration branch unit configuration sub branch move to the row Thermal comp 1 ID 00 and choose number 6 from the possible free inputs NOTE the software does not allow two devices to be connected to the same input To reverse two devices a special input needs to be used also see manufacturer branch unit configuration screens M CONF INOUT 1 Output logic The application can manage a maximum of six compressors with three capacity control steps each and a maximum of five fans The user can decide which inputs to use for the various devices e g first a compressor then a capacity control step then a fan
41. ance Alarm Compressors work of threshold 100000 f m maint07 Maintenance Alarm Compressors threshold 000000 li m_maint08 ETA Aa TI Compressors time counters reset 2131 NUI MG L i m maint09 Fans time counters reset Ii DI m maint10 E Td Last maintenance date 00 00 00 Freon type unit type MT I1 m mainti1 p Probes calibration Inlet 00 se Manual device operation FLSTDMFCOA pCO refrigeration system Deletes all the alarms saved in the log Modifies the value of the maintenance threshold alarm for the compressors and fans over which an alarm is activated as above Sets the operating hours of the compressors to zero Sets the operating hours of the fans to zero This screen is reserved for the parameters corresponding to the last maintenance operations performed on the system This includes the date the type of gas used and the type of system All this data can be displayed by pressing the INFO button Setting these parameters sets all the hour counters for the compressors and fans to zero Sets the calibration values for the probes to be added or subtracted The following screens include the parameters that allow the manual activation of the individual devices without the time settings rotation and irrespective
42. arms action delays resets and corresponding signals When an alarm is activated it acts on the devices if enabled and simultaneously activates the LED the buzzer on the external terminal the corresponding screen and the corresponding event recording To monitor the active alarm simply press the ALARM button and use the UP DOWN buttons to scroll any other active alarms To reset the relay and delete the alarms in the memory first display the alarm screen and then press the ALARM button again Also see ALARM button branch chap 3 7 10 WARNING The alarm from digital input arises when there is no voltage at the corresponding terminal if the parameter input logic is configured as normally closed Manufacturer branch general parameters screen M CONF LOGIC IN Table of alarms The following table explains the alarms controlled by the pCO code alarm description Action performed reset delay NOTES auto man ALO thermal overload Klixon generic compressor 1 OFF comp 1 manual no ALI thermal overload Klixon generic compressor 2 OFF comp 2 manual no AL2 thermal overload Klixon generic compressor 3 OFF comp 3 manual no AL3 thermal overload Klixon generic compressor 4 OFF comp 4 manual no AL4 thermal overload Klixon generic compressor 5 OFF comp 5 manual no ALS thermal overload Klixon generic compressor 6 OFF comp 6 manual no AL6 fan thermal overload switch 1 OFF fan 1 manua
43. ble inputs Gen LP pressostat N Gen HP pressostat NJ ee m_conf_dev06 ra Enable inputs On OFF by dig in NJ Liquid livel al NJ ee m_conf_probe4 Probes enable B3 Ambient temp N B6 External temp N B7 N FLSTDMFCOA pCO refrigeration system Configures the number of inputs per compressor and the type A One generic input only instant manual reset B 2 inputs 1 for the thermal overload instant manual reset plus 1 for the oil differential delayed with manual reset C 2 inputs 1 for the thermal overload plus 1 for the high low pressure switch instant with settable reset D 3 inputs 1 for overload 1 for high low pressure switch and 1 for the oil differential Configures the number of fans compressors and capacity control steps per compressor number of fans number of compressors number of capacity control steps cannot be configured with the compressor inverter The software automatically limits the number of devices that can be configured according to the inputs and outputs available for that type of board enables or disables the inverter on the first compressor cannot be configured if capacity control steps are present enables or disables the fan inverter Enables the alarm relay If not configured an extra output is available Enable inputs general low pressure switch automatic reset general high pressure switch manual reset Enable inputs enable unit
44. cated to the compressor safety devices Devices used Various digital outputs that depend on the configuration used Parameters used for the control compressor set point compressor differential minimum compressor set point limit maximum compressor set point limit number of compressors compressors times type of rotation type of control cod Carel 403022199 rel 1 0 dated 27 07 01 6 FLSTDMFCOA pCO refrigeration system 2 2 1 ON OFF compressor management without inverter Can be configured with or without capacity control Parameters used for ON OFF control number of capacity control steps capacity control step times compressor times Description of dead zone or proportional band operation The compressors are managed by the unit based on Set Point and a differential which can be set on the screen M SETPOINT10 SET branch and on the value read by the inlet probe In the default configuration dead zone control is activated which can be set on the screen M MANUF220 manufacturer branch with FIFO rotation M MANUF220 manufacturer branch respecting the various time settings see the corresponding paragraph For a description of dead zone or proportional band operation please see the following paragraph 2 2 2 Compressor management with inverter If the control is configured with an inverter no capacity control can be used Parameters used for inverter control enable inverter inverter set point invert
45. contact relay no 9 compressor 5 J16 NOIO normally open contact relay no 10 capacity control 1 compressor 4 J16 NOII normally open contact relay no 11 J16 C9 commonrelay no 9 J17 NOI2 normally open contact relay no 12 J17 C12 common relay no 12 J18 NO13 normally open contact relay no 13 J18 C13 common relay no 13 cod Carel 030221991 rel 1 0 dated 27 07 01 44 FLSTDMFCOA pCO refrigeration system J21 NO14 normally open contact relay no 14 general alarm J21 C14 common relay no 14 J21 NO15 normally open contact relay no 15 fan 4 J21 C15 common relay no 15 J22 C16 common relay no 16 J22 NOI6 normally open contact relay no 16 fan 3 J22 NO17 normally open contact relay no 17 fan 2 J22 NO18 normally open contact relay no 18 fan 1 J22 C16 common relay no 16 Table 6 3 3 4 6 4 Possible configurations This table shows all the possible configurations for the refrigeration system The table is divided by the type of board and the number of inputs per compressor Note the following table does not include the possibility of inserting the following in the place of another occupied input e liquid level alarm e remote On Off The same is true for the addition of a further output for the alarm relay Key V possible configuration
46. d to convert from pressure to temperature vei can be configured none R22 R134a NH3 R404a lo The position the various digital inputs for the compressors on the board can be configured The software automatically limits the inputs that are already occupied The following inputs can be used allthe digital inputs analogue inputs B4 B5 used as digital analogue inputs B9 B10 Large board only used as digital To reverse the position of two inputs proceed as follows Position the first device on input 2 Position the second device on the previous input of the first device 3 Position the first device on the previous input of the second device Note if a device remains configured at position it is not considered m conf inout 1 Bass rdis ia ne Position of the digital inputs used as safety devices for the compressors compl Overl 01 Compl oil diff 02 HP LP press c1 O03 li m_conf_inout_2 Board dig in wiring Position of the digital inputs used as safety devices for the fans comp2 Overl 00 Comp2 oil diff 00 HP LP press C2 00 f m dig on offl M Position on the board of the digital input used as an external ON OFF Board dig in wiring this parameter is only displayed if enabled on Off by digital input 00 m_dig_on_off2 Er oe ee this parameter is only displayed if enabled Board dig in wiring Liguid livel alarm o0 l __i
47. display bar Celsius or Fahrenheit The last row shows the status of the machine On OFF from alarm OFF from Supervisor Ret ON from Blackout OFF from remote input OFF from keypad Manual oper Default inst OFF from screen Displays the status of the devices present E device on device off the last row indicates if the unit is the start or stop phase Displays the status of the analogue outputs if configured cod Carel 403022199 rel 1 0 dated 27 07 01 16 m main 4 Auxiliary probe 00 0C 00 Olic 00 omic Switch ON unit No FLSTDMFCOA pCO refrigeration system displays the status of the auxiliary probes if enabled only medium or large boards ambient probe b3 outside temperature probe B6 general probe B7 can be enabled only if the inlet probe is not connected to B7 Unit status On the built in terminal this screen can be used to switch the unit on or off Pressing the MENU button or PROG on the built in terminal from the main screen M MAIN MENU accesses the two screens M MENU 1 and M MENU 1 move around these screens with the UP and DOWN buttons until reaching the branch that needs to be accessed and then press the ENTER button to access the branch highlighted by the cursor m menu 1 SETPOINT INPUT OUTPUT SERVICE M er CONFIGURATION CLOCK INFORMATIONS ALARM HISTORY 3 5 2 P
48. e etate diei rai 9 2 3 Fanimanapement a ec eto ette Ie iicet iere e ee ice e oA Sein goce ui cate Pete ovens 9 2 3 1 ON OFF fan management without inverter eene nete neret ne trennen teen netn nete ee tren trennen 10 2 32 Fan management with inverter enne neen nest ne PENDEK ENENKO TEANS EENS T rena ENEE Snot 10 2 3 3 Fan parameters A uS SC A E A I eae edet ee A 10 2 3 4 Fan tine settings ies uet PEOR Lieve eigen eb 10 2 4 Special f nctions ente neon ner idera e ort e t av ks OE iaia 11 2 4 1 Compressor time bands a ph E e EF EE rer EP ete ee ete eibi 11 2 4 2 Force deyices ea ace quee eet pore ie eire rtu OP i 11 2 4 3 Auxiliary probe management iir teh tr o ree eee tede de Eo ee ho be rbi ni 11 25 Alarmimanapementi ii ep oria entree pdt ene n pe epe nee e ne ep ees epe i ee eer 11 USER INTERFAGE op 14 SS MESI t 14 3 2 LEDs under the Dutton coi Un Ret e lk de IER elia kle sul apd AUGA dees o lan 14 3 58 External keypad s prua ete pali ee pet ee ide etie 14 3 3 1 Use of the buttons on the external terminal 15 3 4 V Builtinitermimnal zi n IVREA GRENIER RERUMS 15 3 4 1 Use of the buttons on the Built in terminal ii 16 3 5 Tree layout of the screens te oen nope peti OE ae epo S PESEE EADE OPERERE prre ee ERR IRE 16 3 5 1 MENU button branch eene diee epi ep ee non
49. e of system configured Unit type TN 3 5 9 MENU PROG buttons unit configuration branch The screens in this branch can be accessed only by personnel who know the manufacturer password m manuf01 Manufacturer loop Insert password 0000 Entering the correct password accesses the following setting screens default 1234 ee m_manuf_menu This is a sub menu that allows access to the various manufacturer branches NIT CONFIGURATION ENERAL PARAMETER IMINGS i NITIALIZATION s Haag Unit configuration enable devices and define their position on the board General parameters general parameter settings Times main time settings for the management of the compressors and fans LILI Unit initial default installation password management supervisor management N B All the parameters in the manufacturer branch can only be modified with the machine off cod Carel 03022199 rel 1 0 dated 27 07 01 24 Unit configuration m conf dev01 om na eest e al Compressor inputs type selection C Overloadtpressostat high low pressure JI m conf dev02 aa ar a Configuration Fans number 0 Comps number 0 Unloads number 0 LJ m conf dev03 ed Compressor inverter DISABLED Fans inverter DISABLED pu m conf dev04 ra aal Alarm relay enabled i AOo J m conf dev05 Ena
50. er branch general parameters screen M CONF UNLOADER If capacity control steps are used this parameter selects the operating logic for the outputs dedicated to the capacity control steps normally energised or normally de energised Compressor start mode with capacity control steps Manufacturer branch general parameters screen M CONF UNITO4 If the parameter is set to CppCppCpp the software gives the precedence to the complete start of each compressor while if set to CCCpppppp the software will first switch on all the compressors and then act on the capacity control steps Compressor stop mode with capacity control steps Manufacturer branch general parameters screen M CONF UNITO4 If set to ppppppCCC when the compressors are being stopped first all the capacity control steps are deactivated and then the corresponding compressors are stopped This procedure is useful when wanting to limit the number of compressor stops and starts and consequently extend the compressor working life If ppCppCppC is set when the compressors are being stopped priority goes to the complete stop of the individual compressor so as to more frequently alternate which compressors are on obviously only with FIFO rotation Compressor and fan rotation Manufacturer branch general parameters screen M CONF UNITO2 M CONF UNIT06 Rotation can be DISABLED number 1 is always turned on first then 2 etc while the highest number compressor always stops first or FIFO
51. er step minimum compressor inverter opening Operating description The compressor inverter can be activated on the screen M MANUFI15 manufacturer branch if no capacity control steps are configured A lower limit can be set for the inverter M MANUF240 manufacturer branch The inverter is managed as follows case 1 dead zone control The inverter is set on the first compressor which will always be the first on and the last off The control requires the setting of a differential DZNI for the control of the inverter M SETPOINT35 branch SET from the inverter Set Point SP and the amount to increase the value by each second The output of the inverter of compressor no 1 starts increasing when the reading of probe al exceeds the inverter Set Point the differential A decrease occurs when the reading of probe al is below the value of the Set Point In the zones between the SP and SP DZNI the output of the inverter is not changed The output of the inverter is increased decreased every second by the value defined as the inverter step M SETPOINT35 SET branch Caution when the compressor inverter is enabled and is controlled outside of the dead zone the compressors are started in the following way compressor 1 which is managed by the inverter is activated as soon as there is a start request ifthe request remains the output of compressor 1 inverter is increased ifthe request is still present and the output of t
52. ermal overload switch alarm Alarm relay Liquid level On Off from input enable ON from digital input LP pressure switch general low pressure switch HP pressure switch general high pressure switch Table 3 5 4 1 m_see_in_out1 ER Input output configuration type of board used Board ee m_see_outl RAA 7 Outputs config relay k1 relay k2 relay k3 E m_see_in_1 mmm Outputs config relay kl fan 1 relay k2 fan 2 relay k3 fan 3 cod Carel 030221991 rel 1 0 dated 27 07 01 20 3 5 5 m clock01 Change hour date Hour 00 00 00 Date 00 00 00 Dd Mm Year l_ _ _ ___________J m_clock02 Daily time zones with setpoint variation enabled N 1 m clock03 i 00 00h Set 00 0 2 00 00h Set 00 0 3 00 00h Set 00 0 4 00 00h Set 00 0 _ _ _ __J 3 5 6 Clock branch FLSTDMFCOA pCO refrigeration system Sets the date Enables the daily time bands 4 bands are available with the corresponding 4 set points that can be set within the limits configured in the PROG branch SET button set point branch Pressing the SET button accesses the following screen for displaying and setting the Set Point and differential values for the compressors and the fans m see set comp lr WX Compressors Proportional Band Set 00 0bar 00 omc Dif
53. essor Manufacturer branch general parameters screen M COMP TIMINGO4 Sets the minimum time that must elapse between two starts of the same device irrespective of the measured value and the set point This parameter limits the number of starts per hour If for example the maximum allowable number of starts per hour is 10 to guarantee this limit simply set a value of 360 seconds Minimum time between capacity control step activation for the same compressor Manufacturer branch general parameters screen M TIME UNLOAD Sets the minimum time that must elapse between the activation of two capacity control steps or between the start of the compressor and its capacity control steps The parameter is present only if capacity control steps have been selected M MANUF325 manufacturer branch This is a safety parameter if rotation with dead zone operation has been selected as in fact the minimum time between requests also includes the time between the activation of two capacity control steps or alternatively between the start of i i i the compressor and its capacity control steps P T_ON_CP i T OFF CP E Figure 2 2 4 1 2 3 Fan management The fans can be managed with inverter control or as simple ON OFF stages Inputs Used Outlet pressure probe Digital inputs dedicated to the fan safety devices Devices used Various digital outputs that depend on the configuration used Parameters used for the control Fan set point Fan diffe
54. f 00 0bar l__i m_set_comp p gt N Compressors Proportional Band Change Setpoint l___i m set fan ET Fans Proportional Band Set 00 0bar 00 0MIC m_inv_comp_step p Compressors Inveter Proportional band Change setpoint 00 0bar Le m_set_inv_fan rmm Fans inverter Proportional band Change Setpoint 1 OJ Compressors Displays if the compressors are working with dead zone or proportional band control Displays the Set Point and the differential Compressors Changes the Set Point within the limits set on the screen M LIMIT SET PROG branch Changes the Set Point within the limits set on the screen M LIMIT SET FAN PROG branch This screen is only displayed if the compressor inverter is enabled indicates if the inverter is working with proportional band control Sets an inverter Set Point in proportional band Screen only displayed if the fan inverter is enabled and is working in proportional band Indicates if the inverter is working in dead zone or proportional band Sets an inverter Set Point in proportional band cod Carel 03022199 rel 1 0 dated 27 07 01 21 M SETPOINT6 E Setpoint loop Insert user lp assword m set invl zn E I Compressors inverter insert offset 00 0volt ID XO m setinv2 zn pM Fans inverter insert offset Step 00 0Volt DO m diff device Comps
55. following key IN Supervisor gt pCO D digital OUT Supervisor pCO I integer IN OUT Supervisor pCO A analogue 6 2 1 Analogue variables flow type Index variable name Description OUT A 1 SUCT PRESS Value of analogue input B1 OUT A 2 DISCH_PRESS Value of analogue input B2 OUT A 3 OUT_INV_FAN Value of analogue output 1 OUT A 4 INVERTER COMPI Value of analogue output 2 OUT A 5 SET COMP compressor Set Point OUT A 6 DIFF COMP compressor differential OUT A 7 SET FAN fan Set Point OUT A 8 DIFF FAN fan differential OUT A 9 VOLTAGE IN power supply voltage to the pCO board IN OUT A 10 MAX SET COMP maximum compressor Set Point IN OUT A 11 MIN SET COMP minimum compressor Set Point IN OUT A 12 MAX SET FAN maximum fan Set Point IN OUT A 13 MIN SET FAN minimum fan Set Point IN OUT A 14 THRESH HIGHI High inlet alarm Set Point INOUT A 15 DIFF HIGHI High inlet alarm differential IN OUT A 16 THRESH LOW1 Low inlet alarm Set Point IN OUT A 17 DIFF LOWI Low inlet alarm differential IN OUT A 18 THRESH HIGH2 High outlet alarm Set Point INOUT A 19 DIFF HIGH2 High outlet alarm differential IN OUT A 20 THRESH LOW2 Low outlet alarm Set Point IN OUT A 21 DIFF LOW2 Low outlet alarm differential INOUT A 22 INS COMP compressor on point IN OUT A 23 DIS_COMP compressor off point IN OUT A 24 STEP_INVDAVI comp
56. h low pressure switch alarm compressor 5 OUT D 64 MALL PRES H6 High low pressure switch alarm compressor 6 OUT D 65 MALL DIF OLIOI Oil differential alarm compressor 1 OUT D 66 MALL DIF OLIO2 Oil differential alarm compressor 2 OUT D 67 MALL DIF OLIO3 Oil differential alarm compressor 3 OUT D 68 MALL DIF OLIO4 Oil differential alarm compressor 4 OUT D 69 MALL DIF OLIOS5 Oil differential alarm compressor 5 OUT D 70 MALL DIF OLIO6 Oil differential alarm compressor 6 OUT D 71 MALL ORE COMPI Maintenance hours threshold exceeded alarm compressor 1 OUT D 72 MALL ORE COMP2 Maintenance hours threshold exceeded alarm compressor 2 OUT D 73 MALL ORE COMP3 Maintenance hours threshold exceeded alarm compressor 3 OUT D 74 MALL ORE COMP4 Maintenance hours threshold exceeded alarm compressor 4 OUT D 75 MALL ORE COMP5 Maintenance hours threshold exceeded alarm compressor 5 OUT D 76 MALL ORE COMP6 Maintenance hours threshold exceeded alarm compressor 6 OUT D 77 MALL TERM VENTI Thermal overload alarm fan 1 OUT D 78 MALL TERM VENT2 Thermal overload alarm fan 2 OUT D 79 MALL TERM VENT3 Thermal overload alarm fan 3 OUT D 80 MALL TERM VENT4 Thermal overload alarm fan 4 cod Carel 030221991 rel 1 0 dated 27 07 01 38 FLSTDMFCOA pCO refrigeration system our D 81 mAL LIQUID LEVEL Liq
57. hanges status e the buzzer if not silenced by pressing the ALARM button stops e the red LED below the ALARM button flashes If in this situation new alarms are activated the initial situation will return The red LED flashing informs the user that there have been active alarms during the day and that the causes have now passed To display the codes of the alarms that were activated simply go to the alarm log press the MENU or PROG button for the Built In terminal alarm log branch Alarms with manual reset When one or more manual reset alarms are detected these are signalled by e red LED below the ALARM button on e buzzer active with external terminal e the alarm relay changes status Pressing the ALARM button silences the buzzer and displays the screens of the activated alarms If the cause of the alarms is resolved the red LED stays on to inform the user that alarms have been activated during the day and to press the ALARM button to reset this situation In this situation the alarm relay remains in an alarm condition If in this situation new alarms are activated the initial situation will return cod Carel 03022199 rel 1 0 dated 27 07 01 12 FLSTDMFCOA pCO refrigeration system The devices remain off until the user deletes the alarm messages The messages are deleted by pressing the ALARM button when the alarm messages are displayed If the causes no longer exist the status of the signal devices changes as follow
58. he ON OFF button turns the unit on or off For Built in terminals to switch the unit on off simply go to the main screen M MAIN MENU and press the UP button then select whether to switch the machine on or off 5 from the screen the unit can be turned off or on from the screen M MAINT20 1 4 The supervisor network The pCO system allows connection to the main supervisory systems using interface boards and suitable protocols In this application program the following data is exchanged with the supervisor e display of the status of the inputs outputs e the status of the enabled devices e any alarms present and in the memory the enabling of the devices various management etc Furthermore a number of parameters can be modified such as set point differential time settings unit status alarm reset etc Also see paragraph 5 2 Variables used in communication with the supervisor which lists in detail all the variables currently available to the supervisor 1 4 1 Serial boards For connection to the supervisory systems the pCO is designed to support the main and most common communication standards As a result connection boards are available for the following standards e optically isolated RS485 serial connection board for pCO PCO2004850 e RS232 serial connection board per modem not optically isolated for pCO PCO200MDM0O e LON RS485 serial connection board for pCO PCO20L4850 e LON FTT10 serial connection boa
59. he inverter reaches 10 Volts the other compressors are requested one at a time with rotation if selected and respecting the time settings For deactivation the following occurs the output of the inverter is decreased SP when the output of the inverter reaches 0 Volt the other compressors stop one at a time respecting the time settings and rotation the last compressor to stop is no 1 Figure 2 2 2 1 case 2 proportional band control The control requires the setting of a set point and a differential M SETPOINT20 50 SET branch When the value measured by the inlet probe is less than or equal to the value of the inverter set point the output of the inverter is 0 Volt As the value measured by probe B1 moves away from the set point the analogue output is increased in proportion to the deviation until reaching 10 Volts when the value measured is greater than or equal to the inverter set point differential Figure 2 2 2 2 cod Carel 403022199 rel 1 0 dated 27 07 01 7 FLSTDMFCOA pCO refrigeration system 2 2 3 Compressor parameters Number of capacity control steps Manufacturer branch configuration screen M CONF DEV02 One two or three capacity control steps can be selected This parameter is displayed only if there is at least one free output per configured compressor and if the Compressor Inverter functions have not been enabled at the same time Capacity control step logic Manufactur
60. he low inlet pressure limit is exceeded Goes off after a pre set time see screen M ALARM4 PROG branch Stops all the compressors Automatic reset High inlet pressure pre alarm Displayed if the high inlet pressure limit is exceeded Goes off after a pre set time see screen M ALARM3 PROG branch Starts all the compressors Automatic reset indicates that there is an error in the configuration of the inputs on the board display only automatic reset call service indicates that there is an error in the configuration of the outputs on the board display only automatic reset call service cod Carel 030221991 rel 1 0 dated 27 07 01 31 FLSTDMFCOA pCO refrigeration system Ere Clock board fault or flat battery this alarm inhibits the time bands or discharged battery Warns that the values measured by the inlet probe are not possible Check the connection and the probe itself Alarm Inhibits compressor control Probe inlet fault Some compressors can be forced on when this alarm is activated or not connected iLdLd OO 2 4l broke probe2 l Warns that the values measured by the outlet probe are not possible Check the connection and the probe itself Inhibits fan control Some fans can be forced on when this alarm is activated Probe outlet fault or not connected i 2 Ood Alarm 3 5 11 ON OFF button branch There are various ways to control the switching on off of the unit see
61. he value measured by probe 2 is lower than the value of the inverter Set Point M SETPOINT25 SET branch the output of the inverter is 0 Volt As the value measured by probe 2 moves away from the inverter set point the analogue output is increased in proportion to the deviation until reaching 10 Volts when the value measured is greater than or equal to the inverter set point inverter differential 2 3 3 Fan parameters Fan rotation Manufacturer branch general parameters screen M CONF UNIT06 Rotation can be DISABLED number 1 is always turned on first then 2 etc while the highest number fan always stops first or FIFO rotation can be selected the first on is the first off Fan control Manufacturer branch general parameters screen M CONF UNIT06 Dead zone see Dead zone or proportional band control see Proportional band can be selected Number of fans forced on with probe 2 fault Manufacturer branch general parameters screen M CONF UNIT7 If the probe 2 failure or not connected alarm is activated BROKEN PROBE this parameter indicates the minimum number of fans forced on 2 3 4 Fan time settings Time between start requests dead zone Manufacturer branch general parameters screen M TIME FAN 1 These parameters set the time between the successive start requests for the devices managed by the probes Present only for dead zone control Time between stop requests dead zone Manufacturer branch general paramete
62. inverter J4 Y2 analogue output no 2 0 10V compressor inverter Table 6 3 1 2 Digital inputs connector code type of digital input Description J5 ID1 digital input no 1 24Vac Vdc thermal overload comp 1 5 m J5 ID3 J5 ID4 digital input no 4 24Vac Vdc Liguid level J5 IDS digital input no 5 24Vac Vdc Thermal overload Klixon fan 4 J5 ID6 digital input no 6 24Vac Vdc Thermal overload Klixon fan 3 J5 J5 ID8 digital input no 8 24Vac Vdc Thermal overload Klixon fan 1 Table 6 3 1 3 Digital outputs connector code type of digital output Description J12 CI common relay 1 2 3 J12 NO1 normally open contact relay no 1 Compressor 1 J12 NO2 normally open contact relay no 2 Compressor 2 J12 NO3 normally open contact relay no 3 Compressor 3 J12 CI common relay 1 2 3 J13 C4 common relay 4 5 6 J13 NO4 normally open contact relay no 4 General alarm J13 NOS normally open contact relay no 5 fan 4 J13 NO6 normally open contact relay no 6 fan 3 J13 C4 common relay 4 5 6 J14 C7 common relay no 7 J14 NO7 normally open contact relay no 7 fan 2 J14 C7 common relay no 7 J15 NO8 normally open contact relay no 8 fan 1 J15 C8 common relay no 8 6 3 2 Table 6 3 1 4 Example of MEDIUM configuration Refrigeration system made up of 4 fans 4 compressors fan inverter 2 inputs per compressor
63. ious sub branches Prg The Built in terminal does not have an ON OFF button therefore to switch the unit on off the user must go to the main screen M MAIN MENU and press the UP button a screen will be displayed allowing the unit to be switched on or off m_main_5 JUnit status Switch ON unit No 3 5 m_start Language used ENGLISH ENTER to change language i 3 5 1 m_main_menu 00 00 00 00 00 Iniet pres 00 0 HF Outlet pres 00 0 MC EI al m_main_2 o ompressors status Eam I gt DN uu lt 1 4 Proportional band Inverter status 021000 0000 Compressors 0000 Unit status On the built in terminal this screen can be used to switched the unit on or off This is only displayed if enabled on the screen M ON OFF UNITA maintenance branch Tree layout of the screens This screen appears when the unit is started and remains active for a few seconds During this period the software initialises the operating parameters and if the program is installed for the first time automatically saves the default values MENU button branch Main screen accessed by pressing the MENU button It displays the pressure values read by the two probes the current date and time the type of gas configured the presence of an alarm signal the machine status Pressing the ENTER button changes the type of
64. is way different configurations can be modified read and saved for different models of machine using one board 1 3 2 Basic configuration According to the board used SMALL MEDIUM or LARGE and the number of inputs per compressor M CONF DEVOI manufacturer branch the number of compressors set can vary from 1 to 6 with between 1 and 3 capacity control steps and between 1 and 5 fans In addition the compressors and the fans can be configured for phase cutting speed controllers or inverters The program checks the type of board SMALL MEDIUM or LARGE that it is working with and makes the inputs and outputs that can actually be used available Number of compressors and fans The number of compressors controlled managed by the inlet probe can be set by the user screen M CONF DEV02 manufacturer branch Depending on the board the pCO system can manage a minimum of 1 compressor up to a maximum of 6 all with the same capacity and with the possibility to rotate activation The number of condenser fans controlled varies from 1 to 5 and can be set by the user screen M CONF DEVOI manufacturer branch with the possibility to rotate activation Input logic The user can decide if the inputs are normally closed when an alarm is present the contact is open or normally open when an alarm is present the contact is closed screen M CONF LOGIC IN manufacturer branch In addition the type of compressor safety devices connected to the inputs c
65. l AL7 fan thermal overload switch 2 OFF fan 2 ALS fan thermal overload switch 3 OFF fan 3 cod Carel 030221991 rel 1 0 dated 27 07 01 11 FLSTDMFCOA pCO refrigeration system AL9 fanthermal overload switch 4 OFF fan 4 manual no AL9 fan thermal overload switch 5 OFF fan 5 manual no AL10 pressure switch comp 1 OFF comp 1 manual no AL11 high low pressure switch comp 2 OFF comp 2 manual no AL12 high low pressure switch comp 3 OFF comp 3 manual AL13_ high low pressure switch comp 4 OFF comp 4 manual no AL14 high low pressure switch comp 5 OFF comp 5 manual no AL15 high low pressure switch comp 6 OFF comp 6 manual AL16_ oil differential comp 1 OFF comp 1 can be set AL17_ oil differential comp 2 OFF comp 2 manual can be set ALIS oil differential comp 3 OFF comp 3 manual can be set ALI9 oil differential comp 4 OFF comp 4 manual can be set AL20 oil differential comp 5 OFF comp 5 manual can be set AL21_ oil differential comp 6 OFF comp 6 can be set AL22_ low liquid level alarm manual can be set display only AL23 gen low pressure switch compressors OFF automatic no AL24 gen high pressure switch compressors OFF manual no AL25 maintenance comp 1 manual display only AL26 maintenance comp 2 manual display only AL27 maintenance comp 3 manual no
66. l parameters Time settings Unit initialisation 3 1 Display The display used is an LCD with 4 rows x 20 columns The values and operating information are presented in the form of successive screens The user can move around the screens using the buttons on the terminal described as follows T TI x Row0 Home Rowl pel O N f If the cursor is positioned in the top left corner Home pressing the UP DOWN buttons accesses the successive screens in the selected branch If the screen includes fields to be set then pressing the ENTER button moves the cursor to these fields Inside the setting fields the values can be modified within the limits envisaged by pressing the UP DOWN buttons Once the value required has been set press the ENTER button to save it 32 LEDsunder the buttons Three LEDs are located under the rubber buttons and indicate respectively ON OFF button green LED indicates that the instrument is on and in operation On the built in terminal the ENTER button lights up ALARM button red LED indicates the presence of an alarm situation when flashing the alarm condition is no longer present ENTER button yellow LED on the external terminal indicates that the instrument is correctly powered green LED on the built in terminal indicates that the instrument is on and in operation 3 3 External keypad Layout of the buttons on the pCO external terminal MENU MA
67. lx AT Max fans setpoint 00 0bar Min fans setpoint m_prog04 Fe a ZZZ Alarms Oil diff delays Startup 000s Running 00s S m prog05 Alarms relay m prog06 Inlet press alarms H threshold 00 0bar Diff 00 0bar Delay 000min i m prog07 Inlet press alarms L threshold 00 0bar Diff 00 0bar Delay m_prog08 o outlet press alarms H threshold 00 0bar Diff 00 0bar l___i m_prog09 Outlet press alarms L threshold 00 0bar Diff 00 Obar Delay m prog10 delay 000s m_progll Black out startup delay enabled N Delay time 0000s i FLSTDMFCOA pCO refrigeration system Sets the upper and lower limit for the fan Set Point Management of alarm times for the oil differential digital input if configured oil differential alarm delay from the start of the individual device oil differential alarm delay when individual device is running This screen is displayed only if the alarm relay has been configured Delay in the activation of the alarm relay following an alarm Sets the pre alarm threshold for high inlet pressure with corresponding differential and delay Sets the pre alarm threshold for low inlet pressure with corresponding differential and delay Sets the pre alarm threshold for high outlet pressure with corresponding differential Sets the pre
68. m conf main pss ET TTT Board dig in wiring A Gen LP press 00 general low pressure switch Gen HP press 00 general high pressure switch these parameters are only displayed if enabled Position on the board of the digital input used as cod Carel 03022199 rel 1 0 dated 27 07 01 26 FLSTDMFCOA pCO refrigeration system In the following screens the outputs on the board can be configured for the various devices To reverse the position of two outputs proceed as follows 1 Position the first device on output 00 2 Position the second device on the previous output of the first device 3 Position the first device on the previous output of the second device Note During normal operation DO NOT leave any device configured in position 00 m conf out 1 comp 1 relay rnB oi Unload 1 relay nW2 Unload 2 relay nW 3 Unload 3 relay nio4 m conf out 7 Board d out wiring relay nB o5 an 2 relay nB o6 relay niio7 l_____i m_conf_out_8 Td Board d out wiring Alarm relay nii 18 ee General parameters m_conf_logic_in la Digital inputs Logic N O No alarm f m logic onoff On OFF by dig input Logic N O OFF unit _ M 4 m type res hl p A1arm pressostat High Low comp reset type AUTOMATIC ee m_manuf210 Alarm relay logic NORMALLY CLOSE f
69. nergy savings in the set time bands multi language management e connection to a supervisor telemaintenance serial line 1 23 General description The purpose of this application is to control a refrigeration system in which the maximum configuration features the management of 6 compressors with 3 capacity control steps 5 fans and 2 controllers The control is based on the readings from the two pressure probes connected to analogue inputs B1 and B2 The digital inputs on the pCO board are connected to the alarm signals from the devices The activation of the alarms is signalled on the display in the specific screens and by a buzzer only with the external terminal The program features a number of screens for setting the operating values and others for setting the machine configuration all protected by password There are three levels of access to the protected screens each referring to different passwords User password user branch refers to a modifiable password which allows access A Default value 0 only to the setting of the control operating parameters level 1 Service password service branch refers to a modifiable password which allows level 2 access to the maintenance parameters Default value 0 Manufacturer password manufacturer branch refers to a modifiable password level 3 which allows access to all the machine configuration screens including the setting of a Default v
70. ng hours fan 5 OUT I 78 TIME ON BLACK OUT Minimum off time after restart from black out OUT I 79 CONFIG INI Type of device connected to input 1 OUT I 80 CONFIG_IN2 Type of device connected to input 2 OUT I 80 CONFIG IN2 Type of device connected to input 2 OUT I 81 CONFIG IN3 Type of device connected to input 3 OUT I 82 CONFIG IN4 Type of device connected to input 4 cod Carel 403022199 rel 1 0 dated 27 07 01 40 FLSTDMFCOA pCO refrigeration system OUT I 83 CONFIG IN5 Type of device connected to input 5 OUT I 84 CONFIG IN6 Type of device connected to input 6 OUT I 85 CONFIG IN7 Type of device connected to input 7 OUT I 86 CONFIG IN8 Type of device connected to input 8 OUT I 87 CONFIG_IN9 Type of device connected to input 9 OUT I 88 CONFIG_IN10 Type of device connected to input 10 OUT I 89 CONFIG IN11 Type of device connected to input 11 OUT I 90 CONFIG IN12 Type of device connected to input 12 OUT I 91 CONFIG INI3 Type of device connected to input 13 OUT I 92 CONFIG_IN14 Type of device connected to input 14 OUT I 93 CONFIG_IN15 Type of device connected to input 15 OUT I 94 CONFIG IN16 Type of device connected to input 16 OUT I 95 CONFIG IN17 Type of device connected to input 17 OUT I 96 CONFIG IN18 Type of device connected to
71. of the values measured by the probes The only support to the control in manual operation is the alarm management The manual activation of the inverter devices forces the corresponding analogue outputs to the set value The manual procedure can only be activated if the unit is OFF therefore the parameters are not enabled if the unit is ON The manual procedure is in any case automatically ended after 5 minutes The status of the corresponding device is displayed to the right manual_protocol12 Devices forcing ends within 5 minutes cod Carel 030221991 rel 1 0 dated 27 07 01 18 m maint13 EE Comp 1 No Status Unloadl No Status Unload2 No Status Unload3 No Status M m maint19 Force ON Fan 1 No Status Fan 2 No Status Fan 3 No Status m_maint21 RAMA 7 Forcing de Comps inveter AUTO Fans inveter AUT E m_change_pass2 ________ Change assistence i FLSTDMFCOA pCO refrigeration system Forces the inverter to 100 MAN or zero AUTO Changes the maintenance password The default is 0 3 5 3 PRINTER button branch m printl Printer not available f Pressing the PRINTER button accesses this screen for managing the serial printer The printer is not featured in this version 3 5 4 I O button input output status branch This group of screens displays the complete status of the inputs and outputs connec
72. oint branch input output branch programming branch maintenance branch and manual procedures configuration branch time modification and print branch branch with information on the version of the software the bios and the boot MAINT button maintenance branch Pressing the MAINT button accesses the following screens which display the number of operating hours for each compressor and fan configured The pCO counts the operating time of each device and every three hours saves this value in the flash memory on the board If the number of operating hours of a device reaches or exceeds the set maintenance threshold the corresponding alarm signal is activated m maint01 ET Working Hours Compressor 1 000000n Compressor 2 000000n Compressor 3 000000n l__i m_maint03 mmm working Hours Fan 1 000000n 000000n 0000001 be t m maint05 Td Maintenance loop Insert assistence password 0000 i Ood m on off unita Keyborad On Off enabled Switch Off unit NO No Displays the operating hours of the various devices Displays the operating hours of the various devices Entering the password accesses the following screens The ON OFF button can be enabled from the keypad If YES is selected the unit will remain off cod Carel 03022199 rel 1 0 dated 27 07 01 17 m reset history E Ml Erase alarm history N li m_maint06 Mainten
73. ommon for digital inputs 9 to 12 J8 IDI3 digital input 13 24Vac Vdc High low pressure switch 3 J8 IDC13 common for digital inputs 13 and 14 J8 IDI4 digital input 14 24Vac Vdc High low pressure switch 4 J19 IDI5 digital input 15 24Vac Vdc High low pressure switch 5 J19 IDC15 common for digital inputs 15 and 16 J19 1D16 digital input 16 24Vac Vdc Liquid level alarm J20 IDI7 digital input 17 24Vac Vdc Thermal overload Klixon fan 4 J20 IDI8 digital input 18 24Vac Vdc Thermal overload Klixon fan 3 J20 IDC17 common for digital inputs 17 and 18 Table 6 3 3 3 Digital outputs connector code type of digital output Description J12 CI common relay 1 2 3 J12 NOI normally open contact relay no 1 compressor 1 J12 NO2_ normally open contact relay no 2 capacity control compressor 1 J12 NO3 normally open contact relay no 3 compressor 2 J12 CI common relay 1 2 3 J13 C4 common relay 4 5 6 J13 NO4 normally open contact relay no 4 capacity control 1 compressor 2 J13 NO5 normally open contact relay no 5 compressor 3 J13 NO6 normally open contact relay no 6 capacity control 1 compressor 3 J13 C4 common relay 4 5 6 J14 C7 __ common relay no 7 J14 NO7 normally open contact relay no 7 compressor 4 J14 C7 common relay no 7 J15 NOS normally open contact relay no 8 capacity control 1 compressor 4 J15 C8 common relay no 8 J16 C9 common relay no 9 J16 NO9 normally open
74. ompressor 4 J14 C7 common relay no 7 J15 NOS8 normally open contact relay no 8 capacity control 1 compressor 4 115 C8 J16 C9 common relay no 9 J16 NO9 normally open contact relay no 9 General alarm J16 NO10 normally open contact relay no 10 fan 4 116 fan 3 J16 C9 common relay no 9 J17 NO12 normally open contact relay no 12 fan 2 J17 C12 common relay no 12 J18 NO13 fan 1 J18 C13 Table 6 3 2 4 6 3 3 Example of LARGE configuration 4 fans 5 compressors fan inverter 3 inputs per compressor Liquid level alarm analogue inputs 1 capacity control step per compressor connector code type of analogue input universal analogue input 1 Description inlet pressure probe B2 universal analogue input 2 outlet pressure probe J2 GND common for analogue inputs J2 VDC 21Vdc power supply for active probes Imax 200mA J3 B4 passive analogue input 4 NTC PT1000 ON OFF general low pressure switch J3 BC4 common for analogue input 4 J3 B5 passive analogue input 5 NTC PT1000 ON OFF general high pressure switch J3 BC5 common for analogue input 5 cod Carel 030221991 rel 1 0 dated 27 07 01 43 J20 B9 J20 BC9 common analogue input 9 passive analogue input 9 NTC PT1000 ON OFF FLSTDMFCOA pCO refrigeration system Thermal overload Klixon fan 1 J20 B10 passive analogue input 9 NTC PT1000 ON OFF
75. pCO Standard Application Ventilatori banda laterale Impostazioni Setpoint 00 0bar m setpoint20 Inverter compressori banda laterale Impostazioni Inverter Ventilatori Inverter compressori Refrigeration System Code FLSTDMFCOA Version V1 1 Manual LEGGI E CONSERVA QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS CAREL EEE A Technology amp Evolution LEGGI E CONSERVA QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS We wish to save you time and money We can assure you that the thorough reading of this manual will guarantee correct installation and safe use of the product described IMPORTANT WARNINGS BEFORE INSTALLING OR HANDLING THE APPLIANCE PLEASE CAREFULLY READ AND FOLLOW THE INSTRUCTIONS DESCRIBED IN THIS MANUAL The appliance that this software is dedicated to has been developed to operate risk free and for a specific purpose as long as e the software is installed programmed run and maintained according to the instructions in this manual and by qualified personnel e all the conditions prescribed in the installation and user manual of the appliance in question are respected All other uses and modifications made to the device that are not authorised by the manufacturer are considered incorrect Liability for injury or damage caused by the incorrect use of the device lies exclusively with the user CONTENTS 1 THE 1 01 60
76. paragraph Machine On Off One of the ways is using the On Off button on the external keypad e Unit off OFF from keypad pressing the ON OFF button starts the machine LED under ON OFF button lights up e Unit on pressing the ON OFF button turns the machine off forcing the outputs to zero the LED under the button goes off When using the built in terminal go to the main screen and press the UP button The following screen will appear m main 5 ANA Unit status OFF keyboard Switch ON unit No This screen can be used to switch the unit on or off also see the paragraph Machine On Off 3 5 12 Log branch To access this branch go to the main screen press the Menu button and then scroll the rows until the ALARM LOG row is selected then press the ENTER button the following screen will appear m al historyl 5 5a a a 28 11 00 15 41 NMooi Event description Alarm no alarm detected the log in reverse order of time AII the alarms are saved together with the date The data from when the unit was restarted and when the user attempted to reset the alarms by pressing the ALARM button can also be saved The first screen displayed is the most recent alarm activated Pressing the UP button scrolls cod Carel 03022199 rel 1 0 dated 27 07 01 32 FLSTDMFCOA pCO refrigeration system 4 PCO2 INSTRUMENT AND ACCESSORY CODES Terminal for flush plastic box for built in mounting
77. rd for pCO PCO20LFTTO The user may depending on requirements decide whether to install the board or not The board allows connection to a supervisory system for the transmission of all the parameters set in the pCO In addition an external GATEWAY is available for communication with the BACNET protocol 1 4 2 Communication protocols The pCO line supports and integrates two communication protocols MASTERPLANT CAREL and MODBUS into the machine s operating system As well as installing the board for the correct operation the identification number of the pCO needs to be set and the board needs to be enabled M CONF SUPERV configuration branch initialisation and the communication protocol used needs to be selected Each pCO must have its address defined so that on the same serial line there are no other devices with the same address the addresses of pCO s on the same serial line must be set in progressive order starting from no 1 As well as the two protocols boards are also available for LON networks All the variables defined in the tables for communication with the supervisor can be used in communication with the LON network but with a maximum limit of 59 When programming the boards these variables must be defined For further information refer to the corresponding manual or contact CAREL cod Carel 030221991 rel 1 0 dated 27 07 01 3 FLSTDMFCOA pCO refrigeration system 1 5 Meaning of the pCO inputs outputs
78. rel 1 0 dated 27 07 01 8 FLSTDMFCOA pCO refrigeration system 2 2 4 Compressor time settings The following is a list of all the time parameters used for compressor management Time between start requests dead zone Manufacturer branch general parameters screen M COMP TIMINGOI These parameters set the time between the successive start requests for the devices managed by the probes Present only for dead zone control Time between stop requests dead zone Manufacturer branch general parameters screen M COMP TIMINGOI These parameters set the time between the successive stop requests for the devices managed by probes 1 and 2 Present only for dead zone control Minimum compressor ON time Manufacturer branch general parameters screen M COMP TIMINGO2 Sets the minimum time in seconds the compressors stay on that is once activated must remain on for the time set by this parameter Minimum compressor OFF time Manufacturer branch general parameters screen M COMP TIMINGO2 Sets the minimum time the compressors stay off The devices are not started again if the minimum time selected has not elapsed since the last stop Minimum time between starts of different compressors Manufacturer branch general parameters screen M COMP TIMING03 Represents the minimum time that must elapse between the start of one device and the next This parameter allows simultaneous starts to be avoided Minimum time between starts of the same compr
79. relay is in rest status e the red LED is off pressing the ALARM button will display the following screen no_alarm No alarm detected f If there is at least one active alarm e the buzzer is on e the alarm relay has changed status e the red LED is on pressing the ALARM button and the using the UP and DOWN buttons will display all of the alarms present in the memory To reset or delete an alarm from the memory press the ALARM button again also see paragraph 3 3 2 al0 a Overload Klixon Compressor 1 overload Klixon compressor 1 a110 Compressor 1 High low Pressure pressostat all6 IZ a116 Oil differential pressostat 1 jor Demand Cooling Alarm displays if the generic safety device from the digital input corresponding to that compressor has been activated stops the corresponding compressor manual reset displays if the thermal overload corresponding to that compressor has been activated stops the corresponding compressor manual reset displays if the thermal overload corresponding to that fan has been activated switches off the corresponding fan manual reset displays if the high low pressure switch corresponding to that compressor has been activated stops the corresponding compressor automatic reset Displayed if the input configured as the oil differential changes status for a set time screen M
80. rential Minimum fan set point limit Maximum fan set point number of fans fan times type of rotation type of control cod Carel 03022199 rel 1 0 dated 27 07 01 9 FLSTDMFCOA pCO refrigeration system 2 3 1 ON OFF fan management without inverter The fans are managed by the unit based on Set Point and a differential which can be set on the screen M SETPOINT15 SET branch and on the value read by the outlet probe In the default configuration proportional band control is activated which can be set on the screen M MANUF250 manufacturer branch with FIFO rotation M MANUF250 manufacturer branch respecting the various time settings If a fan remains off due to an alarm the pressure tends to increase requesting the start of another fan once the alarm has passed the fan will restart normal operation 2 3 2 Fan management with inverter Parameters used Fan inverter set point Fan inverter differential The fan inverter can be set on the screen M MANUFI15 manufacturer branch A minimum value can be set for the inverter M MANUF240 manufacturer branch general parameters The management of the inverter depends on the type of control performed case 1 dead zone control The control requires a deviation to be set M_SETPOINT40 branch SET from the Set Point and the amount to increase the value by each second Operation in this case is similar to the compressor inverter case 2 proportional band control When t
81. ressor inverter step IN OUT A 25 MIN_FREQUENZA minimum frequency IN OUT A 26 MAX_FREQUENZA maximum frequency IN OUT A 27 SET_VENT_INV fan inverter Set Point IN OUT A 28 DIFF_VENT_INV fan inverter differential IN OUT A 29 FREQUENZA Frequency IN OUT A 30 TAR_ASP Calibration probe 1 IN OUT A 31 TAR_MAND Calibration probe 2 IN OUT A 32 SET_INV_COMP Compressor inverter Set Point proportional band IN OUT A 33 DIFF_INV_COMP Inverter differential proportional band Table 6 2 1 1 6 2 2 Digital variables flow type Index variable name Description OUT D 1 SCHEDA MODEM Presence of modem board OUT D 2 PRESENT EXPANSION Presence of expansion board OUT D 3 FANI Status of fan 1 OUT D 4 FAN2 Status of fan 2 OUT D 5 FAN3 Status of fan 3 OUT D 6 FAN4 Status of fan 4 OUT D 7 COMPI Status of compressor 1 OUT D 8 RICH PARZII Status of capacity control 1 compressor 1 OUT D 9 RICH PARZ21 Status of capacity control 2 compressor 1 OUT D 10 COMP2 Status of compressor 2 OUT D 11 RICH PARZ12 Status of capacity control 1 compressor 2 OUT D 12 RICH PARZ22 Status of capacity control 2 compressor 2 OUT D 13 COMP3 Status of compressor 3 cod Carel 030221991 rel 1 0 dated 27 07 01 37 FLSTDMFCOA pCO refrigeration system
82. ring version for pCO2 LARGE PCO2CON3S0 Pitch header version for pCO2 SMALL PCO2CON3MO Pitch header version for pCCO2 MEDIUM PCO2CON3LO Pitch header version for pCO2 LARGE Control terminal connection cables Code Description S90CONNO002 0 8m cable telephone connector S90CONNO000 1 5m cable telephone connector S90CONNOOI 3m cable telephone connector S90CONN003 6m cable telephone connector TCONN6J000 T device for pCO and terminal connections cod Carel 030221991 rel 1 0 dated 27 07 01 33 FLSTDMFCOA pCO refrigeration system Options Code Description PCOUMID000 Control card for CAREL OEM humidifiers PC200MEMO Flash memory expansion board for pCO2 PCO200KEYO Programming key board for pCO2 PCO2004850 Optically isolated RS485 serial connection board for pCO2 PCO200MDMO Non optically isolated RS232 serial connection board for modem pCO2 PCO20LFTTO Serial interface LON FTT10 PCO20L4850 Serial interface LON RS485 PC485KIT00 Serial Converter RS485 RS232 including serial cable for connection to PC PCO20DCDCO Converter DC DC 48Vdc 24Vdc o 48Vdc 30Vdc 0907858AXX Ferrites toroid To let the board be operative it must be programmed by the End user depending on the software that has been installed Driver for electronic expansion valve Code Description EVD0000000 Driver for electronic expansion valve EVBAT00000
83. ription OUT I 10 IDENT identification number IN OUT I 11 LDAY Day setting value INOUT I 12 LHOUR Hour setting value IN OUT 1 13 LMINUTE Minute setting value IN OUT I 14 LMONTH Month setting value IN OUT I 15 LYEAR Year setting value OUT I 16 HOUR current hour OUT I 17 MINUTE current minute OUT I 48 MONTH current month cod Carel 4030221991 rel 1 0 dated 27 07 01 39 FLSTDMFCOA pCO refrigeration system OUT I 19 PYEAR current year OUT I 20 DAY current day IN OUT I 21 RUN DELAY OILD Oil differential alarm delay when running IN OUT I 22 N INPUT FOR COMP number of inputs per compressor IN OUT I 23 N COMP Number of compressors IN OUT I 24 N FAN Number of fans INOUT I 25 N UNLOAD Number of capacity control steps OUT I 26 OUT INV FAN Status of analogue output 1 OUT I 27 OUT INV COMP Status of analogue output 2 OUT I 28 BOARD TYPE type of board connected OUT I 29 UNIT STATUS Unit status On OFF from alarm OFF from supervisor Restart after Blackout OFF from remote input OFF from keypad Manual op Default installation OFF from screen OUT I 30 TYPE BI type of probe b1 connected OUT I 3 TYPE B2 type of probe b2
84. rs screen M TIME FAN 1 These parameters set the time between the successive stop requests for the devices managed by the probes Present only for dead zone control Minimum time between starts of different fans Manufacturer branch general parameters screen M TIME FAN 2 Represents the minimum time that must elapse between the start of one device and the next This parameter allows simultaneous starts to be avoided cod Carel 03022199 rel 1 0 dated 27 07 01 10 FLSTDMFCOA pCO refrigeration system 2 4 2 4 1 Compressor time bands Clock branch screen M CLOCK02 and M CLOCK03 Programmable time bands have been included allowing the variation of the Set Point Pressing the CLOCK button accesses the branch for programming the time bands Once time band control has been enabled the start time in hour and minutes of the time band and the corresponding Set Point must be set M CLOCK03 clock branch This Set Point will be referred to by the control when the current time coincides with that of the time band and will remain the point of reference for the system until the following time band starts For example assuming time bands with the following values Special functions HOURS MINUTES SET POINT RESULT 06 00 0 9 bar _ from 06 00 to 07 00 the Set Point will be 0 9 bar 07 00 1 bar from 07 00 to 10 00 the Set Point will be 1 bar 10 00 1 1 bar from 10 00 to 17 00 the Set Point will be 1 1 bar 17 00 0 8 bar from
85. rther step Similarly the devices are stopped when the measured value falls below the dead zone measured value less than the set point and remains there for a period equal to the time between device stop requests TIME SWITCH OFFX configuration branch times screen M COMP TIMINGO1 in this case the first device stops immediately while the others wait the delay time between stops Also see the paragraph on Time settings If the next device that should start is off due to a time setting then the start of another device will be requested respecting the delay between starts for the devices 1 Device stop zone 2 Dead zone 3 Device start zone Figure 2 1 1 2 1 1 Proportional band Proportional band control calculates based on the parameters SP DF and the number of devices set the various points of activation and deactivation of the devices so as the various starts and stops are positioned proportionally within the controlled differential ON The example shows the activation of the steps for a system with 4 stages For each step by setting the parameters listed above each individual step has a differential equal OFF to SP DE No steps for the first SP 2 DF No steps for the second up to SP DF for the last step DF RP Figure 2 1 1 1 2 2 Compressor management The compressors can be managed with inverter control or as simple ON OFF stages Inputs Used Inlet pressure probe Digital inputs dedi
86. s e the alarm relay changes status switches according to the set logic e the buzzer if not silenced by pressing the ALARM button stops e the red LED below the ALARM button goes off If on the other hand the cause of the alarms is still present the initial situation will return Alarm relay The user may decide whether to configure the alarm relay simply by enabling it manufacturer branch unit configuration screen M CONF DEVO04 and entering the relay to assign to the alarm manufacturer branch unit configuration screen M CONF OUT 9 If enabled a delay time can be set screen M PROGOS PROG branch between the activation of an alarm and the change in the status of the signal relay If the time is set to 0 the activation of the alarm relay is immediate Alarm log Press the MENU or PROG button for the built in terminal and scroll the rows until reaching the alarm log branch AII the activated alarms attempts to reset them from the keypad and black outs are automatically saved in the alarm log A maximum of 300 events can be saved all of which can be displayed on the screen M AL HISTORYT in the Alarm log branch m al historyl 28 11 00 15 41 N0017 Event description Alarm no alarm detected The type of alarm the time and date of the alarm and the number of events saved so far as well as a progressive index number are all indicated on the screen When accessing the screen the las
87. show the input output configurations of a number of applications Each configuration has the following in common e alarm relay e Inlet probe e Outlet probe e general high pressure switch e general low pressure switch Note these three configurations are set as default for the three types of board 6 3 1 Example of SMALL configuration Refrigeration system made up of 4 fans 3 compressors 1 generic input per compressor 0 capacity control steps compressor inverter fan inverter Liquid level alarm analogue inputs connector code e of analogue input description J2 BI universal analogue input 1 inlet pressure probe J2 B2 universal analogue input 2 outlet pressure probe J2 GND common for analogue inputs 21Vdc power supply for active probes Imax 200mA J3 B4 passive analogue input 4 NTC PT1000 ON OFF general low pressure switch J3 BC4 common for analogue input 4 J3 B5 passive analogue input 5 NTC PT1000 ON OFF general high pressure switch common for analogue input 5 NTC 0 1V 0 10V 0220mA 4 20mA Table 6 3 1 1 cod Carel 4030221991 rel 1 0 dated 27 07 01 41 FLSTDMFCOA pCO refrigeration system Analogue outputs connector code type of analogue output description J4 VG power to optically isolated analogue output 24Vac Vdc J4 VGO power to optically isolated analogue output OVac Vdce J4 YI analogue output no 1 0 10V fan
88. sors 000 Fans 000 ll m_conf_unit5 Probe fault alarm forcea compressors number o 1 m conf unit6 4 Fans rotation Fans regolation PROPORTIONAL BAND i m conf unit7 DISABLED Probe fault alarm forced fans number o _ __J m_conf_unit8 Operating range Inverter Hertz Min 00 0 Max 00 0 Time settings m comp timing0l Comps switching on delay time 0005 Comps switching off delay time 000s FLSTDMFCOA pCO refrigeration system This screen is displayed only if Proportional band control is set for the compressors Type of control P Proportional or P I Proportional plus integral If P I is used the integration time needs to be set Compressor start mode see paragraph 3 3 CppCppCpp switch on one compressor completely at a time CCCppppppp first all the compressors then all the capacity control steps Compressor stop mode see paragraph 3 3 ppCppCppC switch off one compressor completely before moving to the following comp ppppppCCC switch off all the capacity control steps then the compressors configures whether the capacity control step solenoids are normally energised NORMALLY CLOSED normally de energised NORMALLY OPEN Sets the minimum opening threshold for the inverter configured the screen is displayed only if the inverters are enabled In the event of a probe b
89. t 2 2 tA a lt Ze a 2 2 i ala la L Be i Li L jejeje WIN lt 4 NIN ojo Ro L L jejejejeje 2 0 5 V Ia 7 2 I 0 mola Y NS TN 4 2 1 1 E REN v Y KEKERE 5 cod Carel 030221991 rel 1 0 dated 27 07 01 n FLSTDMFCOA pCO refrigeration system td Ra aka kaka Ra kaka kaka ka Rata kaka kaka kaka kaka Ra ep pe ere pepe e e 9b beb bebe m did did ka ka kd kd kaka Ra kaka kaka ka kaka rd kd kaka Rd EAKA she k kdkdid dkd d dkdkdkdkdidkdkdid dkdididididkdididkdididididkididkdkdidkdididididkdidkdkididkidididididkdkdkdidididididid kaka gt J EC EMI mes N v v NI N vy v NI NI v NI vy Lv X v N V a vy 7 v v N N LE V LN asi V y v v V v y v V v BS N NI v y v EMI sai X y V NI v N NI v NI N v v ES X 7 gt gt gt gt gt gt
90. t active alarm is displayed The UP and DOWN buttons can be used to check the previous alarms Once the maximum number of alarms has been saved the new events replace the oldest ones The alarm log can be deleted from the screen M RESET HISTORY in the maintenance branch password protected Installing the default values also resets the log cod Carel 030221991 rel 1 0 dated 27 07 01 13 FLSTDMFCOA pCO refrigeration system 3 USER INTERFACE The user interface for this application is divided into four fundamental parts e a USER section not password protected for monitoring the controlled values setting the main control Set point control differential and displaying the active alarms and saved alarms e a USER section password protected which sets all the control parameters for the various functions and processes managed by the program Set point limits alarm thresholds etc only the parameters regarding the manufacturer password enabled functions are displayed and can be set e a SERVICE section password protected reserved for service operations that is the management of the device hour counters the calibration of the connected probes and the forcing of the relay outputs e a MANUFACTURER section password protected for configuring the system selecting and activating the functions of the controlled devices The password protected Manufacturer section contains a menu with four choices Unit configuration Genera
91. ted to the board In addition it provides information on which devices are physically connected to the board m in outO01 A a en inputs 0 open C c1ose lis ccccc 06 ccccc 11 ccccc 16 ccc m in out02 io inpats Il In press 00 Obar out press 00 0bar f m in out04 E 0 pons b4 b5 0 open C clos b4 SG p5 C Ld Contact open A C Contact closed inlet probe status outlet probe status status of analogue inputs used as digital b4 b5 cod Carel 03022199 rel 1 0 dated 27 07 01 19 FLSTDMFCOA pCO refrigeration system m in out05 inputs b9 b10 status of analogue inputs used as digital b4 b5 Large board only 0 open C c1ose 69 c b10 c f m in out20 eee o Digital outputs aa outputs 0 Open C C1ose Noo 00000 06 00000 11 00000 16 000 l____i Min out25 status of analogue outputs vary from 0 1000 Inverter 021000 Y1 Fans 0000 Y2 0000 The following screens show where the various devices configured are connected Key Inputs Outputs no device connected no device connected Therm fan fan thermal overload switch Comp l _ compressor Press sw A B C1 individual compressor high low pressure switch Step C1 _ capacity control Oil diff C1 oil differential compressor Fani Fan Therm comp 1 compressor th
92. uid level alarm OUT D 82 MALL PRES LPRES General low pressure switch alarm OUT D 8 MALL PRES HPRES General high pressure switch alarm OUT D 84 mAL LOW2 Low pressure outlet probe alarm OUT D 85 MALL ALTA MAND High pressure outlet probe alarm OUT D 86 mAL LOW PRESS Low pressure inlet probe alarm OUT D 87 mAL HIGH PRESS High pressure inlet probe alarm OUT D 88 mAL N INPUT Exceeded number of inputs available alarm OUT D 89 mAL N DEVICES Exceeded number of devices available alarm OUT D 90 MALL ORA Clock fault or flat battery alarm OUT D 91 mAL BROKEN PRI Inlet probe faulty or disconnected alarm OUT D 92 mAL BROKEN PR2 Outlet probe faulty or disconnected alarm OUT D 93 GLB AL General alarm signal IN OUT D 94 RES SIR silence buzzer INOUT D 95 RES_AL reset alarm relay IN OUT D 96 CH HOUR Hour setting IN OUT D 97 CH MINUTE Minute setting IN OUT D 98 CH DAY Day setting INOUT D 99 CH MONTH Month setting IN OUT D 100 CH YEAR Year setting OUT D 101 SYSON Unit status IN OUT D 102 INPUT LOGIC Input logic IN OUT D 103 ALARM LOGIC Alarm relay logic IN OUT D 104 EN_INV_COMP Enable compressor inverter IN OUT D 105 EN INV FAN Enable fan inverter IN OUT D 106 EN DIG ON OFF Enable ON OFF from digital input IN OUT D 108 RICH DEFAULT Set default value IN OUT D 110 UNLOAD LOGIC Capacity control logic IN OUT D 111 SUPERV ONOFF Select ON OFF from supervisor IN OUT D 11
93. ut 13 230Vac J8 2 1D13 Inputs can be configured by software see corresponding paragraph digital input 13 24Vac Vdc J8 3 IDC13 common for digital inputs 13 and 14 J8 4 ID14 Inputs can be configured by software see corresponding paragraph digital input 14 24Vac Vdc 78 5 ID14H digital input 14 230Vac J19 1 ID15H Digital input 15 230Vac J19 2 ID15 Inputs can be configured by software see corresponding paragraph Digital input 15 24Vac Vdc J19 3 IDC15 Common for digital inputs 15 and 16 negative pole if the group is supplied in DC J19 4 ID16 Inputs can be configured by software see corresponding paragraph Digital input 16 24Vac Vdc cod Carel 403022199 rel 1 0 dated 27 07 01 4 FLSTDMFCOA pCO refrigeration system 119 5 IDI6H Digital input 16 230Vac Ta an Inputs can be configured by software see corresponding paragraph J20 9 IDC17 Common for digital inputs 17 and 18 negative pole if the group is supplied in DC Table 1 5 3 Digital outputs Connector Signal Description Type of digital output J12 1 CI common relay 1 2 3 J12 2 normally open contact relay no 1 J12 3 Outputs can be configured by software see corresponding paragraph normally open contact relay no 2 J12 4 NO3 normally open contact relay no 3 J12 5 CI common relay 1 2 3 l

Refrigeration System Code: FLSTDMFC0A Version V1.1

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