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1. A Expansion Memory Printer Card Y Q o a a Fig 4 4 2 1 pCO terminals NTC proti tiad GND BC4 BCS BC9 BC10 B1 B2 B3 B4 B5 B6 B9 BIO gt Tab 4 4 2 1 pCO NOTE the two NTC probe leads are the same in that they have no polarity therefore it is not necessary to respect any specific order when connecting to the terminal block cod Carel 030221826 rel 2 0 dated 03 10 02 20 4 4 3 Connecting the PT1000 temperature probes The pCO features connection for PT1000 type 2 lead sensors for all high temperature applications the operating range is 100 C 200 C The inputs which can accept this type of sensor are B4 B5 B9 B10 The inputs must be pre configured for PT1000 signals by the application software resident in the flash memory The following shows the connection diagram Rx Tx RxHTx A O o _ gt QO 2 lll 1 G Expansion Memory Printer Card asa DOGV e N st LO O nane 2 d mo O gt an a pCO terminals PT1000 probe lead probe 1 probe 2 probe 3 probe 4 BC4 BCS BC9 BCIO l B4 B5 B9 BIO 2 Tab 4 4 3 1 WARNINGS e In order to get a correct measurement from the PT1000 probe it is necessary to connect each probe lead to one single terminal as shown in fig 4 4 3 1 NES _____ pCO e The two leads of the PT1000 probes do not hav
2. and the terminal MR e MEET o Saas Expansion Memory cod Carel 030221826 rel 2 0 dated 03 10 02 30 pCO 4 9 Installing the program EPROM in the terminal with graphic display Before inserting removing the EPROM disconnect the power supply to the terminal with graphic display For correct system operation the EPROM has to be inserted in the special socket on the board making sure that the notch on the surface of the EPROM matches the reference notch silk screened on the board The program can be saved to two different types of EPROM according to the its memory requirements The more commonly used in the case of the terminal with graphic display is outlined in Tab 4 9 1 type of EPROM capacity size 27C1001 128 kByte 32 pin Fig 4 9 1 All the information relating to the management of the graphic display fonts graphs and various symbols displayed are created by the application software contained in an EPROM To install the EPROM remove the board shield see Fig 4 9 1 or the optional serial printer board if present
3. cross sections from min 0 5mm l to max 2 5mm Fig 3 10 1 1 10 protective sereem I Tab 3 10 1 1 3 10 2 Inverter card for powering the fluorescent light on the display CFL and connecting to the pco This card provides power to the fluorescent back lighting on the display and allows the main board to correctly control the display used The fluorescent light is available only on PCOIOOPGLO 240x128 pixels Tab 3 10 2 1 Fig 3 10 2 1 WARNING The dotted area in Fig 3 9 2 1 indicates the high voltage area around 360 Vac do not in any circumstances touch this area with your fingers or with conducting tools 3 10 3 Protective screen optional printer card For all pCO graphic terminal models an optional card can be inserted in the pin connector marked by number 2 as shown in Fig 3 9 3 1 for managing a serial printer To insert the card first remove the protective screen which is found in the area reserved for the optional printer card The function of the screen is to increase immunity against terminal disturbances Mounting is made by tightening the three screws in the three holes marked by no 1 Fig 3 3 1 3 1 Do e Fig 3 10 3 1 cod Carel 030221826 rel 2 0 dated 03 10 02 16 pCO 4 INSTALLATION 4 1 Anchoring the pCO The pCO should be installed on a DIN rail To fasten the unit to the DI
4. o o y 3 E 5 5 7 gt 5 3 5 n z A z ccoo VET e UU e LT 6 ci fe Z Expansion Memory Expansion Memory Expansion Memory Printer Card Printer Card Printer Card FUSE FUSE J3 J3 J2 J1 J2 J1 FUSE 5 J2 J3 Fig 5 4 1 AWG 20 22 AWG 20 22 AWG 20 22 T m sr ___ _ x Ri ar Rx Tx ND a o or Lum gt a i DUSCOI E a u ES Expansion Memory Expansion Memory Printer Card Printer Card o o gt AT ee EM Ss a TE o oO Expansion Memory Printer Card Fig 5 4 2 Fig 5 4 2 shows a diagram of a number of boards connected in a pLAN network and powered by different transformers with GO not earthed Typical application a number of boards inside different electrical panels cod Carel 030221826 rel 2 0 dated 03 10 02 35 pCO Fig 5 4 2 shows a diagram of a number of boards connected in a pLAN network and powered by different transformers with the same earth reference Typical application a number of boards inside different electrical panels AWG 20 22 AWG 20 22 AWG 20 22 UN Printer Card Ll JA Printer Card E Printer Card I DOADDADAaQg amaoxtx 2 Rg o AS a Fig 5 4 3 IMPORTANT WARNINGS e the ground connection must be made to the same ground same ground pole for all the pCO boards e wi
5. NO17 normally open contact no 17 J22 4 NO18 normally open contact no 18 J22 5 C16 common relay 16 17 18 J23 1 E E terminal for RS485 connection to I O expansion modules J23 2 E E terminal for RS485 connection to I O expansion modules J23 3 GND GND terminal for RS485 connection to I O expansion modules Tab 2 2 1 The following table gives examples of the distribution of the inputs and outputs in relation to the 3 versions analogue inputs analogue digital inputs digital outputs passive universal outputs 24Vac Vde 230Vac NO changeov e i Z _ _ 2K _F ONNNI 24Vac Vde contacts contact SMALL 2 3 2 28 0 7 1 _ Hr lt lt ee E O MEDIUM 2 6 2 2 0 30 eta 8 KB LARGE 4 6 la 4 13 Ss dom PT Tab 2 3 1 cod Carel 030221826 rel 2 0 dated 03 10 02 11 pCO 3 TERMINAL USER 3 1 Contrast control in LCD Display 4x20 LCD display models have a trimmer for adjusting the display contrast The trimmer can be accessed using a flat head screwdriver through the hole located on the top right corner of the rear cover PCOT models or by removing the rear cover PCOI models in the latter case the potentiometer is located on the top right corner of the main board itself Graphic display models allow control of contrast by pressing simultaneously the Menu and 4 buttons or Menu and T Here follows the descript
6. This instrument has been designed to operate without risks only if e Installation operation and maintenance are performed according to the instructions of this manual e Environmental conditions and supply voltage fall within the values indicated here below Any different use or changes which have not been authorised by the manufacturer previously are considered improper Responsibility for injures or damage caused by improper use will fall exclusively on the user Be careful voltage is present in some electrical components of this instrument thus all the service or maintenance operations must be done by expert and skilled personnel only aware of the necessary precautions to be taken Before accessing the internal parts cut off the power supply Disposal of the instrument The controller is made up of metal and plastic parts and a Lithium battery All these components must be disposed of according to the standards in force in your own country cod Carel 030221826 rel 2 0 dated 03 10 02 3 pCO INTRODUCTION The pCO represents the evolution of the well known pCO electronic control developed by Carel and designed for multiple applications in the fields of air conditioning and refrigeration The new range has been designed to satisfy the needs of the leading manufacturers in the sector who require increasingly innovative and flexible products There are three sizes differentiated according to the I O and power requirements pCO SM
7. for PCOT000L60 and PCOTOOPGHO e 20T50 20 50 C 4 158 F for all the other models 90 rH non condensing index of protection e IP55 front panel for panel mounting e IP20 for models PCOT CB if wall mounted e IP55 for models PCOT32RN front panel for panel mounting environment pollution normal classification according to protection against electric shock to be incorporated in Class I and or II PTI of insulating materials 250V period of electric stress across insulating parts long category of resistance to fire and heat category D category immunity against voltage surges category I Tab 8 4 2 1 cod Carel 030221826 rel 2 0 dated 03 10 02 48 9 USER TERMINAL MOUNTING 9 1 Panel mounting 9 1 1 PCOT drilling template 167 x 108mm 181 5 pCO Legend Fig 7 1 1 1 dimensions in mm n description rear cover HIT 3 front cover drilling template tolerance 0 5 1mm on the indicated dimensions Tab 9 1 1 1 9 1 2 PCOI Legend Fig 7 1 2 1 dimensions in mm 4 25 kt m deseription drilling template 173 x 154 mm OQ Ba external frame 4 drilling template tolerance 0 5mm on the indicated dimensions Tab 9 1 2 1 Fig 9 2 1 cod Carel 030221826 rel 2 0 dated 03 10 02 49 WARNING the maximum thickness of the panel is 6mm Wall mounting requires the u
8. 1 1 The following figure represents one of the more common connection diagrams for the 24Vac digital inputs cod Carel 030221826 rel 2 0 dated 03 10 02 24 pCO 4 5 2 Digital inputs powered at 24Vdc 202 0000000006 Vo a 00000 082 ae my ve Expansion Memory art pCO built in terminal Printer Card Serial Card ZAN _ FUSE A KIPn_R_R_R nnnnn n eee Ce ME al laa 2202220222 O 29000292 2 22 2 2oodobogzoozo 22222 OR awmtwMoonRoor DO Ora oO Tv T Seles TaN 25508 abi 24 Vdc Serial Card 24 Vdc Fig 4 5 2 1 The following figure represents one of the more common connection diagrams for the 24 Vdc digital inputs IMPORTANT WARNINGS to maintain the optical isolation of the digital inputs a separate power supply must be used just for the digital inputs Figs 4 5 2 1 and 2 show the versions MEDIUM in full and LARGE limited to the terminals located more internally on the board The connection diagrams in Figs 4 5 2 1 and 2 while being the more common and the more convenient do not exclude the possibility of powering the digital inputs independently from to the power supply to the pCO cod Carel 030221826 rel 2 0 dated 03 10 02 25 p
9. 4 Y Z NO A mae A Printer Card Z Z Q D oN Y o d gt 500d09 Room 1 f Temp 10 ic 7 Fig 5 5 2 1 Fig 5 5 2 2 shows the TCONN6J000 connector used in a pair for the remote installation of the pCO in a pLAN network using an AWG24 shielded cable terminal etna o e o o shiel d 6545210 first pair A Tab 5 5 2 1 O tie Cie Fig 5 5 2 2 cod Carel 030221826 rel 2 0 dated 03 10 02 38 pCO 5 5 3 Remote installation of the terminal in a pLAN network with AWG20 22 shielded cables This remote installation is shown in Fig 5 5 3 1 Power supply is independent from the shared terminal pLAN to next T device AWG20 22 2 twisted pair AC DC gt P 3VA converter JW A J14 and J15 on 2 3 Fig 5 5 3 1 5 6 pLAN network technical specifications The technical specifications of the pLAN network are summarised in the following table description characteristics Communication standard RS485 baud rate Kbit s 65 2 Protocol Multimaster Carel proprietary control Tab 5 6 1 cod Carel 030221826 rel 2 0 dated 03 10 02 39 pCO 6 OPTIONAL BOARDS 6 1 Programming key The programming key which represents one of the more interesting new features of the pCO can transfer upload and download the application software Upload the program The application softwar
10. 5 Optional boards options code optically isolated RS485 serial connection board for pCO PCO2004850 non optically isolated RS232 modem serial connection board for pCO PCO200MDMO printer interface board for graphic display PCOSERPRNO control board for Carel OEM steam humidifier PCOUMID000 flash memory expansion board for pCO PCO200MEMO parallel printer interface board for pCO PCO200PRNO programming key board for pCO PCO200KEY0 Tab 2 1 6 cod Carel 030221826 rel 2 0 dated 03 10 02 8 pCO The following is a description of the pCO with reference to the basic layout ppuru ur z ing 09d mw pieg Jey Kowa uoisuedxy peg Juas CIO C16 NO16 NO17 NO18 C16 ORF E 22 Fig 2 1 1 cod Carel 030221826 rel 2 0 dated 03 10 02 9 Rx Tx Rx Txt GND C1 NO1 NO2 NO3 C1 C4 NO4 NO5 NO6 C4 C7 NO7 C7 NO8 C8 NC8 C9 NO9 NO10 NO11 C9 NO12 C12 NC12 NO13 C13 NC13 J11 J15 J16 Ne pCO Power connector G GO Yellow power LED and red alarm LED 3 250Vac 2A slow blow fuse T2 A 4 universal analogue inputs NTC 0 1V 0 10V 0 20mA 4 20mA 5 passive analogue inputs NTC PT 1000 ON OFF 6 analogue outputs 0 10V 7 digital inputs 24Vac Vdc 8 digital inputs 230Vac or 24Vac Vdc 9 connector for synoptic terminal 10 connector for all standard terminals
11. Graphic display DO rd Lauria eroe 16 3 10 2 Inverter card for powering the fluorescent light on the display CFL and connecting to the pCO 16 510 3 Protective Screen OpuOmal primer Cane arci laia 16 di MINS 1 E N tcc ae ine iii ia iaia ei 17 4 1 MCO calli 17 4 2 LOWER SUI Y sce tec ro coi elica 17 4 3 Installation warnings destination and connection environments ooooooooonnccnnnnnnnnnnnnnnonononononnnnnnnnnnnnnnnnnnnnnnnnannnnnnnononanos 17 4 4 Connecting the analogue Inputs ii A A Hyun ieee aie 18 4 4 1 Connecting active temperature and humidity probes 19 4 4 2 Connecting the universal NTC temperature probes ccccccccccccccceceeseeseseeseeeeeeeeeeeeeeeeeaaaaseesessseeeeeeeeseeeeeeeeeeeeeeaaaas 20 4 4 3 Connectine the PT 1000 temperature PIODE Scrittori nitore seladuentucnadaibens 21 4 4 4 Connecting the Pressure probes iii 22 4 4 5 Connecting the ON OFF selectable analogue Inputs iii 23 4 4 6 Table summarising the analogue inputs according to the available versions 23 4 5 Eonnectine ne disttalinpuisata taa ada ndes 24 4 5 1 Digttal inputs powered at 24 Vita a 24 4 5 2 Disitalinputs power Tat 24V dealer 25 4 5 3 Digitalanputs powered at 230 Va olo iii 26 4 5 4 Table summarising the digital inputs according to the available Versions 26 4 6 Connectinse the analogue Urpuls ail idos 2 4 7 Con
12. OFF power supply active not active CI N red ON probe power current overload signal short Expansion Memory po circuitoranomaly _ OFF regular probe power Tab 4 2 1 Printer Card DOGG nam gt A a 24 Vac 24 Vde yellow red LED aliment Fig 4 2 1 4 3 Installation warnings destination and connection environments Avoid mounting of the boards in environments with the following characteristics e relative humidity over 90 strong vibrations or bumps exposure to continuous jets of water exposure to aggressive and polluting environments e g sulphuric and ammoniac gases saline mists fumes with consequent corrosion and or oxidation high levels of magnetic and or radio frequency interference thus avoid installing the machine near transmitting antennae exposure of the pCO to direct sunlight and atmospheric agents in general large and rapid fluctuations in ambient temperature environments where explosives or inflammable gases are present exposure to dust formation of corrosive patina with possible oxidation and reduction of insulation cod Carel 030221826 rel 2 0 dated 03 10 02 17 pCO The following warnings must be respected for correct connection electrical power supply different from that specified can seriously damage the system use cable plugs suitable for the terminals being used Loosen each screw and insert the cable plug t
13. WARNINGS all operations involving the key and the relative exchange button must be performed with the machine off Pay attention to the electrical contacts when handling the key to avoid dangerous flexing of the terminal strip 6 2 Memory expansion If the flash memory is not sufficient for the application software or data logs the pCO allows the memory to be expanded with the addition of an expansion board For details on the technical specifications and the installation of the expansion board refer to the instructions provided on the instruction sheet enclosed with the board itself 6 3 RS485 serial board for supervisor and telemaintenance The PCO2004850 board is an option for the pCO electronic control which allows the latter to interface with an RS485 network It guarantees the optical isolation of the control from to the RS485 serial network The maximum baud rate is 19200 baud set via software For details on the technical specifications and the meaning of the pins as well as the installation of the board refer to the instructions provided on the instruction sheet enclosed with the board itself cod Carel 030221826 rel 2 0 dated 03 10 02 40 pCO 6 4 RS232 modem interface card The modem interface card PCO200MDMO is an optional card which allows the pCO to be interfaced with a HAYES standard modem The hardware signals managed are ein output request to send RTS in parallel to data terminal ready DTR ein inp
14. YI analogue output no 1 0 10V J4 4 Y2 analogue output no 2 0 10V J4 5 Y3 analogue output no 3 0 10V J4 6 Y4 analogue output no 4 0 10V J5 1 IDI digital input no 1 24Vac Vdc J5 2 D2 digital input no 2 24Vac Vdc J5 3 ID3 digital input no 3 24Vac Vdc J5 4 ID4 digital input no 4 24Vac Vdc J5 5 IDS digital input no 5 24Vac Vdc J5 6 ID6 digital input no 6 24 Vac Vde J5 7 D7 digital input no 7 24Vac Vdc J5 8 ID digital input no 8 24Vac Vdc J5 9 IDCI1 common for digital inputs to 8 negative pole if the group is DC powered J6 1 B6 universal analogue input 6 NTC 0 1V 0 10V 0 20mA 4 20mA J6 2 B7 universal analogue input 7 NTC 0 1V 0 10V 0 20mA 4 20mA J6 3 B8 universal analogue input 8 NTC 0 1V 0 10V 0 20mA 4 20mA J6 4 GND common for analogue inputs J7 1 ID9 digital input no 9 24Vac Vdc J7 2 ID10 digital input no 10 24Vac Vdc J7 3 ID11 digital input no 11 24Vac Vdc J7 4 ID12 digital input no 12 24Vac Vdc J7 5 IDC9 common for digital inputs 9 to 12 negative pole if the group is DC powered J8 1 ID13H digital input 13 230Vac J8 2 1D13 digital input 13 24Vac Vde J8 3 IDC13 common for digital inputs 13 and 14 negative pole if the group is DC powered 18 4 ID14 digital input 14 24Vac Vde J8 5 ID14H
15. absence of voltage is an alarm condition In this way any interruption or disconnection of the input can be signalled When remoting the analogue inputs the cross section of the leads must be as reported in the following table Tab 4 5 4 2 size mm size mm for_up to 50m long leads for up to 100m long leads 0 25 0 5 Tab 4 5 4 2 cod Carel 030221826 rel 2 0 dated 03 10 02 26 pCO 4 6 Connecting the analogue outputs The pCO provides up to six optically isolated 0 10V analogue outputs powered externally at 24Vac Vdc Fig 4 6 1 shows the connection wiring diagram the OV zero voltage of the power supply is also the reference for the voltage of the outputs Serial Card SATIRA ene mm mm e 2 cc SCs T a TIE ee S N AA 22222 O Q QQ TT O AAA MA MN ON nn Ny nn nN nn nn nn Nn ln ny nilo nN A 7 y lan On N o oo00a 00220990 poe qeejja peas ee ESOO A OO AC AAC E CS EA A RH Co E AUS ss IA cc fo Vout 24 Vac Vdc OV Fig 4 6 1 Tab 4 6 1 summarises the distribution of the analogue outputs according to the available versions version no analogue outputs SMALL 4 MEDIUM 4 LARGE 6 Tab 4 6 1 When remoting the analogue inputs the cross section of the leads must be as reported in the following table Tab 4 5 4 2 size mm size mm for_up to 50m long leads for up to 100m long leads 0 25 0 5 Tab 4 6 2 c
16. for pCO SMALL PCO2CON0SO for pCO SMALL PCO2CONISO for pCO MEDIUM PCO2CONOMO for pCO MEDIUM PCO2CONIMO for pCO LARGE PCO2CONOLO for pCO LARGE PCO2CONILO IDC insulator displacement connector code pitch header code for pCO SMALL PCO2CON2S0 for pCO SMALL PCO2CON3S0 for pCO MEDIUM PCO2CON2M0 for pCO MEDIUM PCO2CON3M0 for pCO LARGE PCO2CON2L0 for pCO LARGE PCO2CON3L0 Tab 2 1 2 pCO user terminal plastic case for panel mounting code graphic display 240x128 pixel back lit PCOI00PGLO LCD display 4x20 back lit PCOI000CBB LCD display 4x20 PCOIO00CBO plastic case for panel mounting and wall mounting code graphic display 64x128 pixel back lit PCOT00PGHO0 LCD display 4x20 PCOT000CBO LCD display 4x20 ready for printer connection PCOTOOSCBO LCD display 4x20 back lit PCOT000CBB 6 digit LED display PCOT000L60 plastic case for panel mounting 32X72 code 3 digit LED display PCOT32RN00 Tab 2 1 3 User terminal interface connecting cables length m ene m lt type code telephone connectors S90CONN002 i a telephone connectors S90CONN000 3 telephone connectors S90CONNO001 6 telephone connectors S90CONN003 Tab 2 1 4 Remote terminal installation accessories for electrical connections code board for user terminal remote installation TCONN60000 Tab 2 1
17. must be at least SmA These inputs are not optically isolated 4 4 6 Table summarising the analogue inputs according to the available versions analogue inputs passive universal NTC PT100 and ON OFF 0 1 V 0 10 V 0 20mA 4 20mAand NTC SMALL 2 B4 B5 3 B1 B2 B3 eta PS MEDIUM 2 B4 B5 6 B1 B2 B3 B6 B7 B8 tota E LARGE 4 B4 BS B9 B10 6 Bi B2 Bs Bo B7 Bs doa A o SE Tab 4 4 6 1 When remoting the analogue inputs the cross section of the leads must be as reported in the following table Tab 4 4 6 2 input type size mm size mm for_up to 50m long leads for up to 100m long leads NTC 0 5 1 0 PT1000 0 75 1 5 I current 0 25 0 5 IV voltage 0 25 0 5 Tab 4 4 6 2 cod Carel 030221826 rel 2 0 dated 03 10 02 23 pCO 4 5 Connecting the digital inputs The pCO features up to 18 digital inputs for connecting safety devices alarms device status remote triggers These inputs are all optically isolated They can work at 24Vac 24Vdc and some at 230Vac WARNING separate the probe signal and digital input cables as much as possible from the inductive load and power cables to avoid possible electromagnetic disturbance 4 5 1 Digital inputs powered at 24Vac e OD Expansion Memory cre pCO built in terminal Printer Card Serial Card LI im die IN E Serial Card G0 Fig 4 5
18. recompiled with the Easy Tools system All the devices connected to the pLAN network are identified using their own individual address If the same address is assigned to more than one unit the network will not work As the terminals and the pCO I O boards use the same type of address terminals and pCO boards can not have the same identifier The values which can be selected for the address range from 1 to 32 for the terminals and from 1 to 31 for the I O boards The addresses are set for the terminals using the dip switches on the rear and on the pCO boards using the dip switches located near the telephone connector The network can be composed of each type of terminals LED LCD 4x20 and graphic as well as pCO and pCO controls cod Carel 030221826 rel 2 0 dated 03 10 02 32 pCO 5 1 Addressing the pCO The address can be set in the range 1 31 using the dip switches 1 5 The value of the address is obtained as in Tab 6 1 1 re Formula address w SW1 w SW2 tw SW3 w SW4 w SWS5 application example fit for address 19 19 1 2 16 p SW1 p SW2 p SWS leelelede te ada status NOTE dip switch no 6 on the pCO is not Ta TTT PONT 1 connected and thus its position has no effect 31 JON ON ON ONJON OFF 0 Tab 5 1 1 5 2 Addressing the terminals The address of the terminals is set using the dip switches at the rear The address can be set in the range 1 32 using dip switches 1 6 The
19. so that they can be seen from a distance Other object displayed include e static graphic objects created by the programmer e graphic objects in motion created by the programmer e graphs of the acquired variables If you want to save the graphic progress of the acquired variables it is necessary to install the clock addressing card of thepLAN local network in the terminal version equipped with 32 kByte EPROM code PCOCLKMEMO This card must be inserted in the pin connector marked CLOCK MEM WARNING all operations involving mounting removal should be performed when the unit is Off cod Carel 030221826 rel 2 0 dated 03 10 02 15 pCO 3 10 1 Graphic display board The board supports the microprocessor the memory and the EPROM which holds the application program for managing the display and the keypad It also includes a connector for the optional serial card for printer management code PCOSERPRNO and for the card containing the clock and the 32 of EEPROM Here below are described the components of the terminal with graphic display n description 1 connector to the inverter and signal management card for the telephone type connector card for terminal connection to the pCO PCOB 21 or junction TCONN6J000 9 power connector to be used with PCOIOOPGLO and for distances 10 4 6 over 50 metres with PCOTOOPGHO
20. supervisor and telemanmtenance edilicia cias 40 6 4 RS232 inodem inierig Callie 41 6 5 Serial printer tor LCD Ax20 Or GED despite 41 6 6 PCOSERPRNO serial printer card for graphic terminal una lil ee ee eg 41 6 7 Board or OEM humidinefmanasemeinit aaacasa A 42 7 GENERAL DIAGRAM OF THE ELECTRICAL CONNECTIONS cccccccccccccccccccncncnnncncncncnoncncnncnnncnnnnnncncncncncncccncncccncss 43 Sir TECHNICAL SBEGCIFICATIONS sissi diana en osos 45 8 1 PEO Seneral carac elia 45 8 2 peOrelecrcal spectlicatio ita i lil ia 45 8 2 1 ANA CUS TN PULS fs nda a adds 45 S22 PO TEAM DULG 35 Ac sgacs se 62s tert ciccia 46 8 2 3 Analog uc OU PUES lalla ei e e 46 8 2 4 Dicitaliontputs sicilia elle eis 46 8 2 5 Connection TO Me US da 46 8 3 No A POPE Elo EOS Tn nn e oo OO ere hy Sere Creer rere re 47 8 4 Technical specifications of the PCOI and PCOT user terminalS i 47 8 4 1 General terminal chata censos e ad 4 8 4 2 Terminal electicalspeciticabonS sd daa 48 9 USER TERMINAL MOUNTING ecc A A vende 49 9 1 A A alata 49 9 1 1 PC OT att A AA states deb a a 49 9 1 2 A A A O 49 92 M OUD A E 49 10 DIMENSIONS eaen aaa a a Eaa aE e e paio 50 10 1 Terminal ERRE RR IE SI oil FOT 51 WEZ TEO ada cdi isa 51 A O E DA RN r merere cer tet Ser ser SNe tee E E Ter neater nnt Tenor sey A mer terse er rcen eran trace 51 pCO IMPORTANT BEFORE INSTALLING OR OPERATING ON THE DEVICE READ CAREFULLY THE INSTRUCTIONS ON THIS MANUAL
21. terminal if featured in the application software NOTE the 21 Vdc available at the VDC terminal can be used for the power supply to the active probes the maximum current being 200mA protected by circuit breaker against short circuits The activation of the latter is signalled by the switching on of the red LED on the right see Fig 4 4 1 cod Carel 030221826 rel 2 0 dated 03 10 02 18 pCO 4 4 1 Connecting active temperature and humidity probes The pCO can be connected to all the Carel series AS active temperature and humidity probes configured as 0 1V or 4 20mA The inputs which can accept these sensors are B1 B2 B3 B6 B7 B8 The inputs must be pre configured for 0 1V or 4 20mA signals by the application software resident in the flash memory The following shows the connection diagram TxX D x gt gt lt BE 2 ic DDD Tab Printer Card DODOO o A gt 5 Da Llamo mo O gt ca Tab 4 4 1 1 for further details on the series AS active probes refer to the technical manual code 030221275 cod Carel 030221826 rel 2 0 dated 03 10 02 19 4 4 2 Connecting the universal NTC temperature probes The analogue inputs from B1 to B10 are compatible with 2 lead NTC sensors The inputs must be pre configured for NTC signals by the application software resident in the flash memory The following shows the connection diagram x x E Sa x x ce
22. value of the address is calculated using the tables in the previous paragraph The graphic terminal does not need to be addressed as the address is established by the program EPROM Fig 5 2 1 shows the rear view of the terminal board microprocessor INNI IUUWI dip switch MUUTTUU o 123 4 56 7 8 printer connection local network connection Fig 5 2 1 IMPORTANT WARNING if the application software is not featured in the local pLAN network the dip switches must be set to 0 otherwise the program will not work cod Carel 030221826 rel 2 0 dated 03 10 02 33 pCO 5 3 Private shared terminals Each pCO board connected to the network can manage more than one terminal max 3 The display of the values on each these occurs simultaneously and not independently from one another it is like having a series of keypads and dispalys connected in parallel Each terminal associated to a specific board can be private or shared A terminal is considered private if it alone displays the output of just one I O board A terminal is considered shared if either automatically or via keypad it can be switched between a number of control boards pCO 1 Personal pCO 2 Personal I 1 I 1 oomo oomo Shared Personal Personal Fig 5 3 1 Each pCO constantly updates the display of its private terminals on the other hand are only updated if the pCO in question is current
23. 17 1 NO12 normally open contact relay no 12 J17 2 C12 common relay no 12 J17 3 NC12 normally closed contact relay no 12 J18 1 NO13 normally open contact relay no 13 J18 2 C13 common relay no 13 J18 3 NC13 normally closed contact relay no 13 J19 1 ID15H digital input 15 a 230Vac 319 2 ID15 digital input 15 24Vac Vdc J19 3 IDC15 common digital inputs 15 and 16 negative pole if the group is DC powered 319 4 ID16 digital input 16 24Vac Vdc J19 5 ID16H digital input 16 230Vac J20 1 Y5 analogue output no 5 0 10V J20 2 Y6 analogue output no 6 0 10V J20 3 B9 passive analogue input 9 NTC PT1000 ON OFF J20 4 BC9 common analogue input 9 320 5 B10 passive analogue input 10 NTC PT1000 ON OFF J20 6 BC10 common analogue input 10 320 7 1D17 digital input no 17 24Vac Vdc J20 8 ID18 digital input no 18 24Vac Vdc J20 9 IDC17 common digital inputs 17 and 18 negative pole if the group is DC powered J21 1 NO14 normally open contact relay no 14 J21 2 C14 common relay no 14 J21 3 NC14 normally closed contact relay no 14 J21 4 NO15 normally open contact relay no 15 J21 5 C15 common relay no 15 J21 6 NC15 normally closed contact relay no 15 J22 1 C16 common relay 16 17 18 J22 2 NO16 normally open contact no 16 J22 3
24. 4Vac Vdc thus all the other terminals in the group from 1 to 6 must be powered at 24Vac Vdc due to the absence of double insulation within the group Therefore terminals from 1 to 6 can be powered at 110 230Vac using a safety transformer Class II for the power supply to the 24Vac Vdc load of the SSR relay Separation of power supply version availability of SSR outputs standard output reference requested output references SMALL up to one output 7 MEDIUM up to one output upon request two outputs 7 12 LARGE up to one output upon request two or three 7 12 and or 14 i tps A _____ Tab 4 7 2 1 version NO changeover total output reference with SSR output references with SSR contacts contacts outputs standard not available yet SMALL 7 A MEDIUM 10 3 Ba LARGE 13 5 18 7 12 and or 14 outputs group 11 2 3 4 5 6 7 1 a 9 10 11 12 13 3 14 15 4 16 17 18 5 Tab 4 7 3 2 the main insulation is guaranteed between the output of one group cod Carel 030221826 rel 2 0 dated 03 10 02 29 pCO 4 8 Installing the user terminal The connection between the user terminal and pCO is made using a 6 way telephone cable supplied by Carel To make the connection simply insert the telephone connector in terminal J10 of the pCO and in terminal B on the user terminal Insert the connector fully into in the terminal u
25. 5 2 cod Carel 030221826 rel 2 0 dated 03 10 02 46 pCO 8 3 pCO plastic case click on to DIN rail according to DIN 43880 and EN 50022 standards material techno polymer self extinguishing VO according to UL94 and 960 C according to IEC 695 marble test 125 C resistance to creeping currents gt 250V colour grey RAL7035 or charcoal grey cooling vent Tab 8 3 1 8 4 Technical specifications of the PCOI and PCOT user terminals 8 4 1 General terminal characteristics e Plastic case e polyamide 66 with 25 fibreglass for the PCOT CB e blend of ABS PC for the PCOT32RN and PCOI e RAL 7032 grey beige for the PCOT CB e charcoal grey for the PCOT32RN and PCOI continuous operating temperature e 115 for 20 000h IEC216 for the PCOT CB CO e 75 for 20 000h IEC216 PCOT32RN and PCOI Tab 8 4 1 1 e Display protection for PCOT CB and PCOI material rigid transparent polycarbonate from sheet category of resistance to fire and heat self extinguishing UL94V2 Category D operating temperature 30T70 30 70 C 22 158 F machining silk screening on rear and double sided adhesive on edge for attaching to plastic case Tab 8 4 1 2 e Keypad polycarbonate label Carel standard for PCOT CB and PCOI thickness mm 0 175 Tab 8 4 1 3 NOTE The standard case PCOT BC features a hatch which opens from the front with a maxi
26. ALL pCO MEDIUM pCO LARGE The pCO ensures absolute application versatility allowing the development of specific products upon customer request All of the terminals in the current pCO range are compatible with the new series of boards In the LARGE version microprocessor based I O expansions can be connected without requiring a pLAN network 1 GENERAL FEATURES All the versions of these controls feature a 16 bit microprocessor and up to 6 MByte of FLASH memory guaranteeing high performance in terms of speed and available memory The pCO control comes in three sizes differentiated according to the number of inputs and outputs thus ensuring the best possible price performance ratio 1 1 pCO SMALL MEDIUM LARGE 1 1 1 Features common to all the versions 16 bit microprocessor 14 MHz internal registers and 32 bit operation 512 Byte internal RAM up to 6 MByte FLASH MEMORY per program 256 kByte static RAM upon prior request expandable to 1 MByte 1 RS485 serial port for pLAN ready for connection to RS485 supervisory network clock with replaceable lithium battery 56 Byte of battery backed up RAM selection of address and LEDs for pLAN DIN plastic case for installation on omega rail 24Vac Vdc power supply telephone connector for pCO terminals telephone connector for synoptic LED power signal 1 1 2 Features of the individual versions pCO SMALL 13 DIN modules e 8 optically isolated digital input
27. CO 4 5 3 Digital inputs powered at 230Vac The following figure represents one of the more common connection diagrams for the 230Vac digital inputs Each group see Meaning of I O inputs can have different voltages Within each the digital inputs are not independent however for example with reference to Fig 4 5 3 1 the inputs ID15 and ID16 due to the common terminal must be powered at the same voltage to avoid dangerous short circuits and or the powering of lower voltage circuits at 230Vac Serial Card sa Cr 110 230 Vac Fig 4 5 3 1 4 5 4 Table summarising the digital inputs according to the available versions ere no opto isolated inputs no opto isolated inputs total at 24Vac 50 60Hz or 24Vde a24Vac or 230Vac 50 60Hz inputs SMALL 8 0 8 MEDIUM 12 7 14 LARGE 14 4 18 Tab 4 5 4 1 IMPORTANT WARNINGS do not connect other devices to the IDN inputs for example relay coils for sending signals to other instruments In the specific case of the inputs at 230Vac a dedicated RC filter typical characteristics 100Q 0 5 uF 630V should be placed in parallel to the coil Fig 4 2 1 3 shows the part of the pCO involving the terminals described The MEDIUM and LARGE models are very similar If safety devices alarms are connected to the digital inputs please keep the following in mind the presence of voltage at the ends of the contact is a normal operating condition while the
28. Digital inputs optically isolated inputs 24Vac 50 60Hz or 24Vdc or 230Vac 50 60Hz For all the 230 Vac inputs the insulation is the main one board size no optically isolated inputs at no optically isolated inputs at total inputs Po 2AVacsOM60Hzor24Vde Wade or 230Vac SO O0HZ ISMALL 8 none 8 MEDIUM 8 4 2 14 LARGE 8 4 2 242 5 5 J 18 minimum impulse detection time for digital input normally open open closed open in AC and DC ms 100 minimum impulse detection time for digital input normally closed closed open closed in AC and DC ms 200 Pb 8 2 2 0 WARNINGS for digital inputs at 230 Vac e 230Vac 50 60Hz 10 15 e each group of two inputs at 24 Vac Vdc or 230 Vac has the same common pole and thus works both at 24Vac Vdc or 230Vac 8 2 3 Analogue outputs maximum no 4 4 6 respectively on the SMALL MEDIA LARGE boards type 0 10Vdc optically isolated power supply external 24Vac Vdc power supply 0 10V output accuracy mV 200 Y1 Y4 mV output resolutions 20 Y5 Y6 mV output resolutions 80 settling time analogue outputs 1 4 s 2 settling time analogue outputs 5 6 s 15 maximum load current mA 10 corresponding to a minimum impedance of 1k 2 Tab 8 2 3 1 8 2 4 Digital outputs maximum no 8 13 18 respectively on the SMALL MEDIA LARGE boards type electromechanical relay Tab 8 2 4 1 These ar
29. N rail lightly press it against the rail The rear tabs will click into place locking the unit to the rail Removing the unit is just as simple using a screwdriver through the release slot to lever and lift the tabs The tabs are kept in the locked position by springs 4 2 Power supply The pCO can be powered at 22 40Vdc and 24Vac 15 50 60Hz The maximum power consumed is Pmax 20W For alternating current power supplies during installation use a Class II safety transformer rated to at least SOVA and with a 24Vac output This is valid for the power supply to just one pCO control If you supply more pCO controller with the same transformer its rated voltage must be n x 5OVA where n is the number of controllers to be supplied by the transformer independently from the controller version The power supply to the pCO control and the terminal or to a series of pCO and terminals must be separated from the power supply to the other electrical devices power contactors and other electromechanical components inside the electrical panel If the transformer secondary is earthed check that the ground wire is connected to terminal GO When powering a series of pCO boards connected in a pLAN network check that the references G and GO are respected GO must be same for all the boards The following table summarises the states of the power LEDs x x EE x gt ce GND g9 LED status description a yellow ON
30. PCOT PCOI in the pCO series and for downloading the application software 11 relay digital outputs 12 connector for connection to I O expansion modules 13 connector address definition and LED for pLAN local network 14 hatch for inserting the RS485 for serial connection to Carel supervisor or RS232 serial board for modem interface 15 hatch for inserting the board for connection to a parallel printer 16 hatch for inserting the programming key memory expansion 17 built in terminal LCD buttons and LEDs pCO 2 2 Meaning of the inputs outputs This table summarises the inputs and the outputs and provides a brief description of each J1 1 power supply 24Vdc or 24Vac J1 2 i power supply reference J2 1 Bl universal analogue input 1 NTC 0 1V 0 10V 0 20mA 4 20mA J2 2 B2 universal analogue input 2 NTC 0 1V 0 10V 0 20mA 4 20mA 32 3 B3 universal analogue input 3 NTC 0 1V 0 10V 0 20mA 4 20mA J2 4 GND common for analogue inputs J2 5 VDC power for active probes 21Vdc maximum current 200mA J3 1 B4 passive analogue input 4 NTC PT1000 ON OFF J3 2 BC4 common analogue input 4 J3 3 B5 passive analogue input 5 NTC PT1000 ON OFF J3 4 BC5 common analogue input 5 J4 1 VG power for optically isolated analogue output 24Vac Vdc J4 2 VGO power for optically isolated analogue output OVac Vdc J4 3
31. cS S pCO electronic programmable COntroller A A E be LLL Li AL SME L N m LEGGI E CONSERVA gt QUESTE ISTRUZIONI lt READ AND SAVE THESE INSTRUCTIONS CAREL C ua daa oe NM Technology amp Evolution LEGGI E CONSERVA gt QUESTE ISTRUZIONI lt READ AND SAVE THESE INSTRUCTIONS We wish to save you time and money We can assure you that a thorough reading of this manual will guarantee correct installation and safe use of the product described CONTENTS INFRODUGION etilico GENERACFEATURES 3000 la 4 1 1 PCO SMA E MEDIUM A a o et a o 4 1 1 1 Features common to alte VELO allea lea olii 4 ALO Features Ol hein VviGUals VELOSO is 4 1 2 PRO Ob ain aaa 5 2 HARDBWARE STRUCFUORE sgln i INR I a iaia 6 2A Instrument and accessory Codes siii ia 8 23 Neanmine Ot the IOUS Upi 10 dy TERMINAL USER 0 tica 12 3 1 Contrastcontrolan EDIPO bia 12 3 2 Display LCD 4x20 for wall or panel mountinp i hire aria 12 3 3 LED Display tor wallor panel mounting arl bee O 12 3 4 LCD Graphie Display tor wall Gr Pano LOIS A A A A ico 12 aD AO ECO Display for panel MOUNN nia AAA AAA A 13 3 6 LCD Graphic Display 1m PAM ii 13 3 7 3 DisitDispliy LED rca 13 3 8 BUS LAY scan ados dai 14 3 9 PEONES O ld e cnc eos cal eine ii ln oo A 14 3 9 1 Typical use of the buttons in standard Carel applications 15 3 10 Functions and features of the terminal with graphic display 15 SAO
32. can be connected to pLAN local network allowing the communication of data and information from one location node to another Each pCO can be connected to a CAREL supervisory network using the optional PCO2004850 cards The pCO terminals can monitor the control variables temperature humidity pressure I O alarms from one or more boards If one or more terminals are disconnected or malfunctioning the control program continues to function correctly on each pCO main board Generally the application program can monitor the status of the network and intervene as a consequence to ensure the continuity of the control functions The figure below 5 1 shows the network connection diagram a maximum of 32 units can be connected including I O interface cards and user interface cards The 32 unit can only be a terminal Terminal 1 Terminal 2 Terminal n Printer pcom peom peoa I 1 I 1 I 1 OOO OOO OZ IZ IZ ZO TIZIDITATITIDAN pLAN RS485 62 5kbit 2 pCO 3 e supervisor network RS485 up to 19 2kbit to a supervisory computer Fig 5 1 All the versions of the pCO can be connected in a local pLAN network without requiring additional boards The programs written for the different applications e g standard chiller standard air conditioners compressor packs can not be automatically integrated into a local network they must be modified to consider the network strategy and structure and then be
33. connection to the supervisor telemaintenance serial line based on the RS485 standard is made using the optional serial boards PCO2004850 and the Carel communication protocol the terminal also managed by microprocessor fitted with display keypad and LEDs to allow the programming of the control parameters Set Point differential band alarm thresholds and fundamental operation by the user ON OFF display of the controlled values optional printing The terminal does not have to be connected to the pCO for normal operation but can be used for the initial programming of the fundamental parameters The power of the application software means that the user terminal allows the initial programming of the machine with password protected access to guarantee security the possibility to modify at any time the fundamental operating parameters optionally protected by password the display and acoustic signalling buzzer of the alarms detected the display of the active functions using the LEDs the display of all the quantities measured the printing of the alarms recorded and the periodical printing of the status of the main machine variables optional the possibility to simulate the function buttons of the standard keypad with LED indication of the selected function depending on the application software the possibility to simulate a numeric keypad on the standard keypad for setting the data depending on the application softwa
34. cr digital input 4 IDA NO7 digital output 7 digital input 5 ID5 c7 digital input 6 ID6 digital output 8 digital input 7 ID7 NO8 digital input 8 ID8 gt P do ibti NCB probe 6 7 Ser th out H B6 M 5 NIC B7 NTC G B8 c9 _ y a GoD NO9 digital output 9 ere e Pa digital input 9 I NO10 digital output 10 CP digital input 10 ID10 NO11 digital output 11 digital input 11 ID11 probe 8 A i p c9 digital input 12 ID12 IDC9 NO12 digital output 12 D13H ve digital input 13 ina NC12 C13 NO13 digital output 13 ID14 C13 su DIH NC13 digital input 14 Sh Sp Sp Sp SP NOo14 1 O digital output 14 OP c14 19 ID15H digital input 15 SP x ie nci4 i Sp IS D de NO15 1S digital output 15 S Sti lipcis igital outpu als SP gS I ie 19 NC15 S I 16H digital input 16 P b C16 IS S noi digital output 16 a No17 119 digital output 17 nois digital output 18 analog output 5 0 10 Vdc 1Qh Y5 Da 1 o de analog output 6 0 10 Vdc BI Sp Yo FHI Gp B9 dS probe 9 L IS ISP Bco dS B10 q probe 10 ISB S TRO ISP Bc10 E 12 digital input 17 rof SP m17 Es op IS digital input 18 19 DSP 1D 18 GND 10 q ISF mc17 qS ea Fig 7 1 WARNINGS e Ifthe controlled devices are powered by 24Vac Vdc it is better it is different from the 24 Vac Vdc power supply used to power the pCO e The CP equipotential connection Fig 7 1 probe 8 must be performed directly on GND terminal and never outsi
35. de the electrical panel cod Carel 030221826 rel 2 0 dated 03 10 02 43 pCO The following figure Fig 7 2 shows a special configuration where wiring of devices is further facilitated In any case you must consider that the max current value which can be supported by each terminal is 8A GO Bl B2 B3 GND VDC B4 BC4 B5 BC5 pred uud VG VGO Y1 Y2 Y3 Y4 ID1 pred Tenes ID2 ID3 ID4 IDS IDG ID7 ID8 IDCI B6 B7 B8 GND ID9 ID10 ID11 ID12 IDC9 ID13H ID13 IDC13 ID14 ID14H cod Carel 030221826 rel 2 0 dated 03 10 02 puw uang ODd Ey KIOUWIS N UOISUBAXH Fig 7 2 44 S Rx Tx dS I Rx Tx CS I GND L SI CI IS NOI IS Il No2 JS No3 dS il ci JAI c4 AS I No4 IS I NOS JS No6 dOl c4 IS I C7 el NO7 c7 N I No8 el C8 AS NC8 dQ I C9 IS No9 IS I No10 IS I No1 JS Il co IS I No12 S c12 SI Nc12 IS NO13 dQ I c13 US NC13 i digital output 1 digital output 2 digital output 3 digital output 4 digital output 5 digital output 6 digital output 7 digital output 8 digital output 9 digital output 10 digital output 11 digital output 12 digital output 13 pCO 8 TECHNICAL SPECIFICATIONS 8 1 pCO general characteristics e 20T70 C e rH 90 non condensing e 10T60 C OT50 C versions with built in terminal e rH 90 non condensing
36. digital input 14 230Vac J9 8 way telephone connector for connection to a synoptic terminal J10 6 way telephone connector for connection to standard user terminal J11 1 TX RX TX connector for RS485 connection to the pLAN network J11 2 TX RX TX connector for RS485 connection to the pLAN network J11 3 GND GND connector for RS485 connection to the pLAN network J12 1 Cl common relay 1 2 3 J12 2 NOI normally open contact relay no 1 J12 3 NO2 normally open contact relay no J12 4 NO3 normally open contact relay no 3 J12 5 Cl common relay 1 2 3 J13 1 C4 common relay 4 5 6 J13 2 NO4 normally open contact relay no 4 J13 3 NOS5 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 normally open contact relay no 7 J14 3 C7 common relay no 7 Tab 2 2 1 cont cont cod Carel 030221826 rel 2 0 dated 03 10 02 10 J15 1 NO8 normally open contact relay no 8 J15 2 C8 common relay no 8 J15 3 NC8 normally closed contact relay no 8 J16 1 C9 common relay 9 10 11 J16 2 NO9 normally open contact relay no 9 J16 3 NO10 normally open contact relay no 10 J16 4 NO11 normally open contact relay no 11 J16 5 C9 common relay 9 10 11 J
37. e can be uploaded from the key to the pCO in this way the same program can be transferred quickly to a series of pCO boards Download the program The application software can be downloaded from the pCO to the programming key in this way a copy can be made of the application software data and parameters from a particular pCO board To choose one of the 2 functions simply move the switch on the key to the position corresponding to the type of transfer as listed in Tab 6 1 1 switch position type of program transfer 1 Upload pCO programming by key 2 Download copy on pCO by key Tab 6 1 1 To upload the program run carefully through the following procedure disconnect power to the pCO board place the switch on the key into position 1 remove the expansion memory hatch if possible use the screwdriver as shown in Figure x x insert the key into the relative expansion memory connector press and hold the up and down buttons together connect power to the pCO board confirm the operation with the enter button wait until the display on the user terminal shows xxxxxxxx 9 disconnect power to the pCO board 10 remove the key 11 replace the hatch in the initial position 12 at this point the program has been loaded from the key to the pCO board PA To download the program follow the same steps described above selecting position 2 on the key switch IMPORTANT
38. e divided into 3 groups with two common pole terminals to simplify assembly of the common pole Pay attention to the current running through the common terminals in that this must not exceed the rated current of a single terminal The relays are divided in groups depending on the insulating distance Inside one group the relays have single insulation among them and thus they must support the same voltage generally 24Vac or 110 230Vac Among the groups there is double insulation and so the groups may be at different voltage groups 1 2 3 4 5 6 7 8 alarm relay 9 10 11 12 13 14 15 16 17 18 NO contacts all with 250Vac varistor protection changeover contacts 5 with 250Vac varistor protection on both contacts switchable power and relative 2500VA 250Vac 8A resistive 2A FLA 12A LRA according to UL873 electrical parameters 2A resistive 2A inductive cos 0 4 2 2 A according to EN 60730 1 Tab 8 2 4 2 3 2 5 Connection to the user terminal type asynchronous half duplex with 2 dedicated leads connector 6 way telephone cable driver balanced differential CMR 7 V RS485 type Tab 8 2 5 1 The maximum allowable distances between the terminal and the pCO are reported in Tab 8 2 5 2 telephone cable AWG24 shielded cable cable resistance 2 m maximum distance m cable resistance l2 m maximum distance m lt 0 14 600 lt 0 078 600 lt 0 25 400 Tab 8 2
39. e polarity It is not necessary to respect any polarity order when connecting to the terminal block cod Carel 030221826 rel 2 0 dated 03 10 02 21 4 4 4 Connecting the pressure probes pCO The pCO can be connected to all Carel series SPK active pressure probes or any pressure sensor on the market with an 0 20mA or 4 20mA signal The inputs which can accept these sensors are B1 B2 B3 B6 B7 B8 The inputs must be pre configured for 0 20mA or 4 20mA signals by the application software resident in the flash memory The following shows the connection diagram Beg gt a FUSE IN pCO terminal probe lead colour description Vdc brown power supply B1 B2 B3 B6 B7 B8 white signal Tab 4 4 4 1 cod Carel 030221826 rel 2 0 dated 03 10 02 22 Expansion Memory Printer Card pCO 4 4 5 Connecting the ON OFF selectable analogue inputs Rx Tx Rx Tx a Z D i Expansion Memory Printer Card rose Y Y LO LO o g a A oR Q OAO Fig 4 4 5 1 The pCO allows some analogue inputs to be configured as clean digital inputs The inputs in question are B4 B5 B9 B10 The inputs must be pre configured as clean digital inputs by the application software resident in the flash memory The following shows the connection diagram WARNINGS The maximum current delivered by the digital input is 5mA thus the rating of the external contact
40. hen tighten the screws At the end of the operation lightly tug the cables to check that they are tight separate as much as possible the probe signal and digital input cables from the inductive load and power cables to avoid possible electromagnetic disturbance Never use the same channelling including that used for the electrical cables for the power cables and probe cables Avoid the probe cables being installed in the immediate vicinity of power devices contactors circuit breakers or others reduce the length of the sensor cables where possible and avoid spiralling around power devices The probe connection must be made using shielded cables minimum cross section for each lead 0 5 mm avoid touching or nearly touching the electronic components on the boards to avoid extremely dangerous electrostatic discharges from the user to the components if the power supply transformer secondary is earthed check that the ground wire corresponds to the lead which goes to the control and enters terminal GO separate the power supply to the digital outputs from the power supply to the pCO do not fasten the cables to the terminals by pressing the screwdriver with excessive force to avoid damaging the pCO 4 4 Connecting the analogue inputs The pCO analogue inputs can be configured for the more common sensors on the market NTC PT1000 0 1V 0 10V 0 20mA 4 20mA The different types of sensors can be selected via a parameter in the user
41. index of protection IP20 IP40 front panel only environment pollution normal Classification according to protection against electric shock to be integrated in Class I and or II devices PTI of insulating material 250V period of electric stress across insulating parts long type of action 1C type of disconnection or micro switching micro switching category of resistance to heat and fire category D UL94 vO immunity against voltage surges category number of automatic cycles for each automatic action e g relay 100 000 software class and structure Class A the device is not designed to be hand held Tab 8 1 1 In respect of the limits established by the safety standards on electromagnetic compatibility in the declaration of conformity see installation manual the only and sporadic malfunctions detected involve the indications on the display and the LEDs The display and LEDs are automatically reset at the end of the disturbance 8 2 pCO electrical specifications terminal block with removable male female connectors maximum voltage 250Vac max current 8A cable cross sec mm min 0 2 max 2 5 CPU H83002 16bit 14Hz program memory in FLASH MEMORY 1 MByte structured at 16 bit expandable up to 6 MByte data memory static RAM 256 kByte structured at 16 bit expandable up to 1 MByte Tab 8 2 1 8 2 1 Analogue inputs analogue co
42. ion of terminal user available versions display 3 2 Display LCD 4x20 for wall or panel mounting code PCOT00 CB features Number of rows 4 Number of columns 20 Font height mm 5 Other features available e version fitted for connection to a serial printer PCOTOOSCBO bs Gry a X ky e version with LCD back lit PCOTOOOCBB Fig 3 2 1 3 3 LED Display for wall or panel mounting Fig 3 3 1 3 4 LCD Graphic Display for wall or panel mounting Graphic vot ve Fig 3 4 1 cod Carel 030221826 rel 2 0 dated 03 10 02 12 pCO 3 5 4x20 LCD Display for panel mounting code PCOI000CB features Number of rows 4 Number of columns 20 Font height mm 15 Other features available e version with back lit LCD PCOI000CBB Fig 3 5 1 3 6 LCD Graphic Display for panel mounting Fig 3 6 1 3 7 3 Digit Display LED 32x72 113 z cod Carel 030221826 rel 2 0 dated 03 10 02 13 pCO 3 8 Built in display The three versions SMALL MEDIUM LARGE feature a version with display and keypad directly built into the plastic case EM pCO built in terminal PCO2000BS0 PCO2000BM0 PCO2000BL0 Fig 3 8 1 Tab 3 8 1 see Instruments and Accessories codes These versions with LCD and built in keypad also support connection to all the terminals in the pCO series the two displays built in and standard work together sho
43. ly controlling it This 1s described in the following logical diagram Fig 5 3 1 In this example the shared terminal is associated to 4 I O boards yet at this moment only no 1 can display data and receive commands from it Switching of the boards occurs in cyclical order 1 gt 2 gt 3 gt 4 gt 1 by pressing a button set by the application program Switching can occur automatically on request guided by the program For example an I O board may request control of the shared terminal to display alarms or alternatively relinquish control to the next board after a set interval cyclical rotation The number and type of terminals is established during the initial configuration of the network The relative data is stored in the permanent memory of each I O board cod Carel 030221826 rel 2 0 dated 03 10 02 34 pCO 5 4 pLAN electrical connections Connection between boards in a pLAN network is carried out using an AWG20 22 shielded cable made up of a twisted pair plus shield The boards are connected in parallel with terminal J11 as the reference Pay ATTENTION to the network polarity RX TX on one board must be connected to RX TX on the other boards the same 1s true for RX TX Fig 5 4 1 shows a diagram of a number of boards connected in a pLAN network and powered by the same transformer typical application a number of boards connected inside the same electrical panel AWG 20 22 AWG 20 22 AWG 20 22 SS N J
44. make the electrical connections and click the rear the of instrument onto the bracket The electrical connections are the following Connect the telephone cable code SIOCONNOO from the power board code PCOB and PCO2 into the relative jack The model with graphic display code PCOTOOOGHO is fitted with a further screw terminal block 4 8 2 Installing the panel mounted terminals pCOl and relative electrical connections These terminals have been designed for panel mounting the drilling template must measure 173x154 mm When installing refer to the following instructions 1 remove the click on frame 2 insert the plastic part containing the display and electronic boards on the drilled front part of the panel making sure the gasket on the lower edge of the front cover rests properly against the front part of the panel 3 make four 2 5mm diameter holes in the panel in line with the holes in the instrument 4 insert the fastening screws supplied choosing between self tapping and self threading screws according to the type of material used for the panel plastic or metal Then perform the electrical connections The electrical connections are the following Connect the telephone cable code SIOCONNOO from the power board code PCO2 into the relative jack For the model PCOIOOPGLO only connect the 24Vac 30VA power supply to the screw terminal block If the same transformer is used for the pCO G and GO must be the same for the pCO
45. mum inclination of 150 With the hatch closed only the five silicon rubber buttons are accessible and the three LEDs which back light them are visible 2 activated by application software and 1 always on To access the remaining buttons the hatch must be opened the LEDs below the polycarbonate are only visible with the hatch open The physical dimensions drilling template for panel installation colours and mounting instructions for wall installation are indicated in the enclosed drawings e Display protection for PCOT32RN _ material green transparent polycarbonate category of resistance to fire and heat self extinguishing UL94V0 Operating temperature 30T120 30 120 C 22 248 F machining silk screening on front panel Tab 8 4 1 4 e Silicon keypad for PCOT32RN material silicon rubber category of resistance to fire and heat self extinguishing UL94V0 Operating temperature 30T70 30 70 C 22 158 F Machining silk screening on buttons Tab 8 4 1 5 cod Carel 030221826 rel 2 0 dated 03 10 02 47 pCO 8 4 2 Terminal electrical specifications e 24Vac from Class II transformer and separate for PCOIOOPGLO PCOTOOPGLO e 21 30Vdc from power board via the telephone cable for all the other models e 10T60 10 60 C 14 149 F for PCOTOOOL60 and PCOTOOPGHO e 0T50 0 50 C 32 122 F for all the other models 90 rH non condensing e 20T70 20 70 C 4 158 F
46. nectine me distal OU puella E E E EA 28 4 7 1 Electromechanical relay digital outputs Akere a e Ka E iei aea iaa 28 4 7 2 Solidstate relay dicitallomiputs Siro coa 29 4 7 3 Table summarising the digital outputs according to the available Versions i 29 4 8 hallo secc 30 4 8 1 Installing the wall panel mounting terminals pCOT and relative electrical connections 30 4 8 2 Installing the panel mounted terminals pCOI and relative electrical connections cccccccnccnnnnnnnnnnnnnnocnnnnnnnnnnnnnononos 30 4 9 Installing the program EPROM in the terminal with graphic display 31 Si PLAN NETWORK BLED Lui Licia 32 5 1 Addressi o he pOr candado 33 52 PROCES Sin S 1 Me terminals scat lita 33 5 3 Perv ate sharcedteminal toi 34 5 4 PLAN electrical COMM CONS ssaa bali 35 5 5 Remote installation of the terminal in a PLAN network 36 SS Remote terminal with pLAN network and telephone type cable 37 55 2 Remote terminal installation on pLAN network using AWG24 shielded cable with 3 twisted pairs shield 38 5 5 3 Remote installation of the terminal in a pLAN network with AWG20 22 shielded cables 39 5 6 PLAN network technical SpecinicadOOS cds 39 67 DETIONAL BOARDS 00 A A A A A 40 6 1 Pro Otani Oe ke sao ico dic elia tcs 40 6 2 Memorrexpansion alal 40 6 3 RS485 serial board for
47. ntil it clicks into place To remove the connector simply press lightly on the plastic flap and remove the cable The pco can also work without the terminal do not disconnect and then reconnect the terminal to the pCO without first having waited around 5 seconds if the operation is performed with the machine on When standard terminals connected by J10 of domestic or similar use devices thus subjected to CEI EN 55014 1 04 98 direction are remoted they must have shielded cable The shield must be connected to the GND terminal of J11 Inserire figura appropriata 4 8 1 Installing the wall panel mounting terminals pCOT and relative electrical connections This type of terminal has been designed for panel mounting and wall mounting The drilling template in the case of panel mounting must measure 167x108 mm When installing pay attention to the following instructions 1 unscrew the two screws on the rear cover of the terminal and remove the cover 2 rest the front cover against the front part of the panel 3 insert the cover from the rear lining up the two holes with the two studs positioned on the front cover 4 tighten the screws The maximum thickness of the panel is 6 mm Then perform the electrical connections The wall mounting features the use of the special mounting brackets and standard 3 module wall mounting switch box to allow the passage of the cables Fasten the bracket to the wall using the screws finally
48. nversion 10 bit A D converter Built in CPU maximum number 5 8 10 respectively on the SMALL MEDIUM LARGE boards type e passive Carel NTC temperature sensor 50 100 C R T 10kQ 1 at 25 C By5 g9 3 435 K 1 PT1000 100 200 C R T 10000 C or clean digital input selectable via software inputs B4 B5 B9 B10 e universal Carel NTC temperature sensor 50 100 C R T 10kQ 1 at 25 C Bosg9 3 435 K 1 voltage 0 1Vdc or 0 10Vdc current 0 20mA or 4 20mA selectable via software inputs B1 B2 B3 B6 B7 B8 For all kind of inputs the unit of measurement is by step settling time analogue inputs s 2 NTC input accuracy C 0 5 PT1000 input accuracy C 1 0 1V input accuracy mV E3 0 10V input accuracy mV 30 0 20mA input accuracy mA 0 06 a impulse detection time for clean digital input normally open open closed open in DC analogue inputs 4 5 9 250 ms minimum impulse detection time for clean digital input normally closed closed open closed in DC analogue inputs 4 5 250 9 10 ms Jo Tab 8 2 1 1 you must add this value with the processing time of the application programme WARNING the 21 Vdc available at the Vdc terminal can be used for the power supply of any active probes the maximum current being 200mA protected thermally against short circuits cod Carel 030221826 rel 2 0 dated 03 10 02 45 pCO 8 2 2
49. od Carel 030221826 rel 2 0 dated 03 10 02 27 pCO 4 7 Connecting the digital outputs The pCO features up to 18 digital outputs with electromechanical relays upon request with solid state relays SSR To simplify assembly the common terminals of some relays have been grouped together If the diagram in Fig 4 7 1 is used the current at the common terminals must not exceed the rating nominal current of a single terminal that is 8A resistive The relays are divided into groups according to the distance of insulation Inside each group the relays have just single insulation and thus must have the same voltage generally 24Vac or 110 230Vac Between the groups there is double insulation and thus the groups can have different voltages 4 7 1 Electromechanical relay digital outputs Z Q 3 gt Q S mm n n ce o o O n On S a O o O 22 0 0 2 0 2 0 2 O 2 110 230 24 Vac Z Ss O ai O E cod Carel 030221826 rel 2 0 dated 03 10 02 28 pCO 4 7 2 Solid state relay digital outputs SSR The pCO also features a version with solid state relays SSR for piloting devices which require an unlimited number of switchings which would not be supported by electromechanical relays They are dedicated to loads powered at 24Vac Vdc with a maximum power Pax 10W Please see codes in Accessories and instruments codes Fig 4 7 2 1 IMPORTANT WARNING the load of the SSR relay is powered at 2
50. printer 9 pole female 25 pole male 9 pole female 9 pole male connector pCO side connector printer side connector pCO side connector printer side O Wy O Fig 6 6 2 Characteristics and settings of the serial printer port on the board for graphic display Graphic dot matrix printer Epson compatible with RS232 serial interface baud rate 19200 parity none stop bits 1 or 2 data bits 8 protocol hardware handshake 6 7 Board for OEM humidifier management This interface code PCOUMID000 allows the control of the fundamental parameters of the OEM humidifiers manufactured by Carel level and conductivity of the water in the cylinder TAM sensor for current absorption directly from the pCO microprocessor based electronic control The values measured by the sensors are converted into signals which can be read by the inputs on the pCO electronic board for more information refer to the user manual for the application program Fig 6 7 1 Warnings for operators When handling the card please follow the advice below To safeguard operators and the cards disconnect power before working on them Electrical damage may occur to the electronic components as a result of electrostatic discharges from the operator Suitable precautions must be therefore be taken when handling these components e before using any electronic component or card ground yourself not touching the card does not prevent a spike as static elect
51. r specifications Terminals The terminal can be customised according to customer specifications For example the following features can be chosen e standard or graphic LCD display luminous segment LED display e number of buttons according to specific application needs e number of LED signals according to specific application needs e protective polycarbonate keypad label made to customer specifications EasyTools environment made up of a variety of different user friendly software for programming simulating supervising and creating pLAN local networks using terminals and Carel programmable controls Macroplus pCO and pCO cod Carel 030221826 rel 2 0 dated 03 10 02 5 pCO 2 HARDWARE STRUCTURE The structure of the Carel pCO features the pCO control fitted with a 16 bit microprocessor for running the regulation program and the set of terminals required for connection to the controlled devices for example valves compressors fans The program and the set parameters are saved permanently in FLASH memory preventing data loss in the event of power failure without requiring a back up battery The pCO also allows connection to a local pLAN network made up of a series of pCO and terminals Each board can exchange information any variable digital or analogue according to the application software at high transmission speeds Up to 32 units can be connected sharing information in very short times The
52. re cod Carel 030221826 rel 2 0 dated 03 10 02 6 pCO The hardware structure is defined as follows 1 user terminal with keypad display and LED signals Ze pco SMALL version 3 pco LARGE version 4 connecting cable between terminal and pCO 5 connecting cable between terminal and serial printer provided by customer 6 serial printer provided by customer 7 AWG20 22 cable for pLAN connection between a series of pCO boards 8 connection terminal kit in this case disconnected from the board to make them completely visible 9 connection to supervisory systems 10 connection to I O expansions LARGE version only Fig 2 1 cod Carel 030221826 rel 2 0 dated 03 10 02 7 2 1 Instrument and accessory codes PCO AAA interface and control version code LARGE with removable connectors PCO2000AL0 MEDIUM with removable connectors PCO2000AMO0 SMALL with removable connectors PCO2000AS0 LARGE with removable connectors built in terminal PCO2000BL0 MEDIUM with removable connectors built in terminal PCO2000BMO0 SMALL with removable connectors built in terminal PCO2000BS0 LARGE with removable connectors one SSR output no 7 PCO2001AL0 MEDIUM with removable connectors one SSR output no 7 PCO2001AMO SMALL with removable connectors one SSR output no 7 PCO2001AS0 Tab 2 1 1 Removable connector kits i screw code spring code
53. removing the relative screws then mount the EPROM making sure that the reference notch matches the notch silk screened on the EPROM ref t r Fig 4 9 1 Be extremely careful when handling this component keeping the following in mind 1 remove the board which acts as a shield or if necessary the optional printer board when installing the EPROM be careful not to touch the SMD components on the board in the space inside the socket 2 if already present to remove the EPROM from the socket use a small screwdriver being careful not to damage the tracks on the printed circuit or any other associated component 3 before touching the EPROM touch a grounded part to discharge the necessary static electricity accumulated do not touch any powered devices 4 insert the EPROM in the relative socket on the board checking that all the pins are inserted correctly in place exact correspondence between the pins and the slots furthermore do not bend the pins carefully inserting them into the socket holding the component by opposite end to the pins 5 Once the EPROM has been inserted remount the board which acts a shield or if necessary the optional printer board before closing the cover and place the terminal in operation IMPORTANT WARNING the EPROM must be inserted removed from the socket only when the terminal is off cod Carel 030221826 rel 2 0 dated 03 10 02 31 pCO 5 pLAN NETWORK As already mentioned the pCO controls
54. ricity can produce a 10000V spike discharge which can form an arc of about 1cm e all components must be kept inside their original package as long as possible If necessary take the main board from its package and place it into an antistatic package without touching the back of the board with your hands e absolutely avoid non antistatic plastic bags polystyrene or sponges e absolutely avoid passing the card directly to other operators to prevent from electrostatic induction and discharges cod Carel 030221826 rel 2 0 dated 03 10 02 42 pCO 7 GENERAL DIAGRAM OF THE ELECTRICAL CONNECTIONS The following are two examples Figg 7 1 and 7 2 of how to connect the pCO to the various devices 230 24 Vac L G I Do AAA E 8 a O A 4 dS I Rx Tx be 1 a g JO 1 Rx Tx probe IS I GND 3 M GND ISP z B Z OUT probe 3 0 1 Vdc o 4 20 mA o avoc ll N E a 7 B4 MOP A Carel NTC probe 4 5 3 mu BC4 I SP 3 Bs I 6P PT1000 probe 5 Si 2 cs IS Cl NOI digital output 1 VG NO2 digital output 2 VGO NO3 digital output 3 analog output 1 0 10 Vdc YI cl analog output 2 0 10 Vdc Y2 n C4 analog output 3 0 10 Vdc Y3 a NO4 digital output 4 analog output 4 0 10 Vdc Y4 Q NO5 digital output 5 digital input 1 ID1 z NO6 digital output 6 digital input 2 ID2 C4 digital input 3 ID3
55. s 24Vac 50 60Hz or 24Vdc 8 relay digital outputs 1 of which with changeover contact 2 analogue inputs selectable between NTC PT1000 ON OFF 3 analogue inputs selectable between NTC 0 1V 0 10V 0 20 mA 4 20mA 4 analogue outputs 0 10 V pCO MEDIUM 18 DIN modules 12 optically isolated digital inputs 24Vac 50 60Hz or 24Vdc 2 optically isolated digital inputs 24Vac Vdc or 230Vac 50 60Hz 13 relay digital outputs 3 of which with changeover contacts 2 analogue inputs selectable between NTC PT1000 ON OFF 6 analogue inputs selectable between NTC 0 1V 0 10V 0 20 mA 4 20mA 4 analogue outputs 0 10 V pCO LARGE 18 DIN modules 14 optically isolated digital inputs 24Vac 50 60Hz or 24Vdc 4 optically isolated digital inputs 24Vac Vdc or 230Vac 50 60Hz 18 relay digital outputs 3 of which with changeover contacts 4 analogue inputs selectable between NTC PT1000 ON OFF 6 analogue inputs selectable between NTC 0 1V 0 10V 0 20 mA 4 20mA 6 analogue outputs 0 10 V 1 serial port for I O expansion pCO with built in terminal The three different sizes feature a version with LCD and keypad built into the plastic case and fitted with e an LCD display 4 x 20 with back lighting selectable via software e 6 buttons e 4LEDs managed by application software cod Carel 030221826 rel 2 0 dated 03 10 02 4 pCO 1 2 Programmability The Carel pCO can be programmed using the EasyTool
56. s development system which offers the following advantages e transportability of the software onto different Carel hardware The applications developed for the pCO or Macroplus can be simply and quickly transferred to the pCO and vice versa adapting the inputs and outputs only e rapid development at competitive costs of customised programs e reliability guaranteed by the use of standard routines tested in the field The use of EasyTools furthermore offers customers the guarantee of the maximum degree of confidentiality and independent management should they decide to develop their own new programs The possibility to use the same hardware in different applications guarantees standardisation with the significant advantages of being able to have test in circuit functional testing and burn in procedures on all products and thus achieve a high degree of reliability both overall and of the individual electronic components Applications The programmability of the Carel pCO ensures absolute applicational flexibility The same standard hardware can be used for the control of chillers and heat pumps roof top units air conditioners small medium air handling units upon request showcases upon request and on specifications cold rooms upon request and on specifications seasoning rooms refrigeration units universal circuit closing switches Other types of programs can be developed upon request and based on custome
57. s thresholds by pressing simultaneously these buttons you access the unit configuration number of instruments connected to the pCO scale setting probe calibration etc displays the version of the application program and other information The LED next to each button are illuminated when the relative function is active depending on the application program External silicone rubber buttons standard version 4 Ref Fig 3 2 1 1 relating to Carel standard application programs 2 3 4 3 1 ON OFF switches the unit on or off The green LED that lights up in the button shows 1f the machine is turned on 2 alarm button used for displaying or manually resetting the alarms and for silencing the buzzer If the button lights up red at least one alarm has been Fig 3 9 1 1 detected 3 The arrow pointing upwards to manage the currently displayed screen and to set the values of the control parameters not back lit 4 The arrow pointing downwards to manage the currently displayed screen and to set the values of the control parameters not back lit 5 enter button to confirm the set data The button is constantly back lit yellow indicating the presence of mains power 3 10 Functions and features of the terminal with graphic display The fonts of the digits can be configured by the user programmer both for style and dimension Therefore it is possible to represent all alphabets You can display the measured values in large format
58. se of a special mounting racket and a standard 3 module switchbox for the passage of the cable With reference to Fig 7 2 1 fasten the bracket 1 to the wall 3 using the screws 2 clip the rear of the instrument onto the bracket pCO 10 DIMENSIONS WARINING all the dimensions are in mm 2 10 1 pCO pCO LARGE 18 DIN modules pCO SMALL 13 DIN modules Pa LAWE Pornitorrirey r s k j cod Carel 030221826 rel 2 0 dated 03 10 02 50 pCO 10 2 Terminal user 10 2 1 PCOT 170 170 e gt gt Fig 10 2 1 1 1 rear cover 2 front cover 3 fastening screw 10 2 2 PCOI PCOT32RN 202 202 Fig 10 2 2 1 Fig 10 2 2 2 10 2 3 PCOT32RN re ee B E i dima di foratura m drilling template B B 71x29mm gt IA fissaggio 91 5x36 5mm overall dimensions 91 5x36 5mm 75 Fig 10 2 3 1 Carel reserves the right to alter the features of its products without prior notice cod Carel 030221826 rel 2 0 dated 03 10 02 51 Note Note Note CARE Technology amp Evolution CAREL S p A Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 http www carel com e mail carel carel com Agenzia Agency Cod 030221826 rel 2 0 dated 03 10 02
59. th these configurations Figs 6 4 1 2 3 Class II safety transformers must be installed 5 5 Remote installation of the terminal in a pLAN network When pCO boards are connected in a pLAN network the terminal can be remotely located ad a distance of up to 50 metres if using a telephone type cable if using a shielded cable it can be located at a distance of up to 200 metres The following fig ures show the connection diagrams for the various configurations cod Carel 030221826 rel 2 0 dated 03 10 02 36 pCO 5 5 1 Remote terminal with pLAN network and telephone type cable Remote installation requires the insertion of two ferrites code 0907858AXX at the markings with the letter F in Fig 5 5 1 Figs 5 5 2 a and 5 5 2 b show respectively the ferrites to be installed the open and closed position The ferrites are mounted on the telephone connecting cable on the pCO side see Fig 5 5 2 c and the other terminal side see Fig 5 5 2 d WARNING the telephone cable must leave the pCO perpendicularly max 50 m 4 o x l y n Expansion Memory Printer Card Fig 5 5 1 Fig 5 5 2 a Fig 5 5 2 b Fig 5 5 2 c Fig 5 5 2 d cod Carel 030221826 rel 2 0 dated 03 10 02 37 pCO 5 5 2 Remote terminal installation on pLAN network using AWG724 shielded cable with 3 twisted pairs Shield This type of remote installation is shown in Fig 5 5 2 1 200 m Den o S90CONN E
60. ut carrier detect CD For details on the technical specifications and the meaning of the pins as well as the installation of the board refer to the instructions provided on the instruction sheet enclosed with the board itself 6 5 Serial printer for LCD 4x20 or 6 LED display A serial printer can only be used with the following pCO terminals e PCOTOOSCBO terminal with LCD 4x20 e PCOTOOSL60 terminal with 6 digit LED display These terminals are already fitted with a 9 pin male connector connector A for connecting the printer using a serial printer cable 9 pin pCO end 25 pin printer end Characteristics and settings of the serial printer port Printer with RS232 serial interface baud rate 1200 parity none stop bits 1 or 2 data bits 8 protocol hardware handshake Refer to the diagrams of the previous optional card for information on the required cables 6 6 PCOSERPRNO serial printer card for graphic terminal The printer card code PCOSERPRNO is an optional card for all pCO graphic terminal models code PCOIOOPGLO and PCOTOOPGHO It allows interface with an external printer the choice of data to print and the print properties depend on the application program contained in the pCO EPROM This card can only be used with graphic terminals e PCOTOOPGHO 128x64 pixel e PCOIOOPGLO 240x128 pixel Fig 6 6 1 cod Carel 030221826 rel 2 0 dated 03 10 02 41 pCO Type of serial cable for the
61. wing the same information at the same time This terminal version also allows the contrast of the display to be adjusted To do this 1 press Enter and Esc together 2 keep the two buttons pressed and use the Up or Down button to adjust the contrast increase or decrease respectively The table below shows the function of the buttons relative to the keypads on the built in and standard terminals Alarm button alarm button Prg button prg button Esc button menu button up button up button down button down button enter button enter button Tab 3 8 2 On the built in terminal keypad pressing the up down enter buttons together allows the user to quickly check the inputs and outputs 3 9 pCO terminal keypad n description l mechanical buttons protected by polycarbonate cover Tab 3 8 1 cod Carel 030221826 rel 2 0 dated 03 10 02 14 pCO 3 9 1 Typical use of the buttons in standard Carel applications displays the values measured by the probes displays the values relating to the maintenance of the devices working hours and operating hour counter reset accesses the group of screens for printer management where included fl displays the status of inputs and outputs both digital and analogue allows the display programming of the clock 1f present allows the Set Point setting allows the various operating parameters to be set safety parameter

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