2Index Introduction …………………………….........................page 03 Technical features …………….………………………..page 07Application software ..…………………………………page 09One possible set of hardware ..………………………page 10pCO1 Small and Medium ……………………………..page11Basic layout of the pCO1 medium …….……………page 13Connecting the analogue inputs ……………………page 16EVD 400 ……………..…………………………………….page 21Supervisory systems ……..……………………………...page 22Optional features ...……………………………………page 26Accessories kit ………………………………………….page 31
4Introduction: positioning in the electrical panel
5IntroductionThe pCO1 series has been designed for the purpose of providing the significant innovations introduced by the pCO system to all those applications that require greater competitiveness in terms of price.All the pCO1 series controllers feature a 16-bit microprocessor, and 2 MB flash memory (multi-language, multi-protocol).
6IntroductionThe pCO1 controllers are available in two different sizes, according to the I/O and power requirements: pCO1 Small, pCO1 Medium.Some models feature an SSR to control the devices that require frequent starts and stops.
7Technical Features14 MHz, 16 bit microprocessor, 16bit internal register and operations,512 byte internal RAM;Up to 2 Mbyte FLASH MEMORY for the program;1 RS485 serial connector for pLAN;• Ready for connection to RS485supervisory network;• DIN plastic case for DIN rail installation;• 24Vac/Vdc power supply;• Telephone connector for pCO terminals;• Power on LED.
8Technical FeaturesThe pCO1 controller is fitted with a 16bit microprocessor to runthe control program, and of a set of terminals required for the connection to the controlled devices (for example: valves, compressors, fans).The program and the parameters are saved permanently in the FLASH memory, preventing data loss in the event of power failure (without requiring a backup battery).The pCO1 controller also allows connection to a local pLAN network madeof a series of pCO1 boards and terminals.Up to 10 units can be connected in the same pLAN net
9Application SoftwareThe power of the application software means that the user terminal allows:• the initial programming of the unit, with password-protected access toguarantee security;• the possibility to modify, at any time, the fundamental operating parameters,optionally protected by password;• the display and audible signalling (by buzzer) of any alarms;• the display of the active functions, using the LEDs;• the display of all the values measured;
10One possible set of hardware User terminal with keypad, display andsignal LEDs;pCO1 (SMALL version);pCO1 (MEDIUM version);connection cable between the terminal and pCO1;connection cable between the terminal and serial printer (supplied by the customer);AWG20/22 cable for pLAN connection between a series of pCO1 boards;Connection terminal kit;Connection to supervisor systems.
11pCO1 Small and Medium PCO1 SMALL • 8 optically-isolated digital inputs, 24Vac 50/60Hz or 24Vdc;• 8 digital relay outputs (1 of which with changeover contact and2 optional SSR);• 4 analogue inputs, configurable as NTC, 0/1V, 0/5V, 0/20mA, 4/20mA.• 2 analogue inputs, configurable as NTC and ON-OFF• 2 x 0/10Vdc analogue outputs.• 2 PWM outputs for phase-cutting speed controllers.
12pCO1 Small and Medium PCO1 MEDIUM • 12 optically-isolated digital inputs, 24Vac 50/60 Hz or 24Vdc;• 2 optically-isolated digital inputs, 24Vac/Vdc or 230Vac (50/60Hz);• 13 digital relay outputs (3 of which with changeover contact and4 optional SSR);• 4 analogue inputs, configurable as NTC, 0/1V, 0/5V, 0/20mA, 4/20mA.• 2 analogue inputs, configurable as NTC and ON-OFF• 2 NTC analogue inputs• 2 x 0/10Vdc analogue outputs.• 2 PWM outputs for phase-cutting speed controllers.
14Basic layout of the pCO1 medium 01. Power supply connector [G (+), G0 (-)]Vac, 2A fuse, slow-blow (T2 A)03. Universal analogue inputs, NTC, 0/1V, 0/5 V, 0/20mA,4/20mA04. Passive analogue inputs, NTC and ON/OFF05. Passive analogue inputs, NTC06. Yellow power LED and 3 signal LEDs07. 0/10V analogue outputs and PWM phase-cuttingoutputs08. Digital inputs, 24Vac/Vdc09. Digital inputs, 230Vac or 24Vac/Vdc10. Connector with Vref for power to 5V ratiometricprobes, and Vterm for power to ARIA terminal11. connector for all the standard pCO* seriesterminals and for downloading the applicationsoftware12. pLAN local network connector13. connector for the programming key14. digital relay outputs15. door for selecting the type of analogue inputs16. door for inserting the serial card:RS485 for supervisorRS232 for modem interfaceGateway (protocol converter)17. door for inserting the clock card
15Basic layout of the pCO1 medium Regarding the meaning of each connector and of the correspondance between inputs – outputs, in the manual you’ll find a precise table with all the descriptions.The following table gives examples of the distribution of the inputs andoutputs in relation to the 2 versions
16Connecting the analogue inputs The analogue inputs can be configured for the more common sensors on the market: NTC, 0/1V, 0/10V, 0/20mA, 4/20mA.The different types of sensors can be selected using the corresponding dipswitches, as in the following figure.
17Connecting the analogue inputs This is a picture taken directly from the electrical diagram inserted between the documentation at the moment of the unit delivery.In the last pages, before the components list, there is the specific dipswitches configuration.
18Connecting the analogue inputs In this way you can:Connect active temperature and humidity probesConnect universal NTC temperature probesConnect 4/20mA pressure probesConnect 0/5V ratiometric pressure probesConnect the analogue inputs selected as ON/OFFConnect the digital inputsConnect 24Vac digital inputsThe pCO1 features up to 14 digital inputs for connecting safety devices, alarms, device status, remote switches. These inputs can work at 24Vac, 24Vdc and some at 230Vac.
19Connecting the analogue inputs 8. Connect the 230 Vac digital inputsThe following figure represents one of the morecommon Connection diagrams for the 230Vacdigital inputs.Within each group, the digital inputs are notindependent: for example, with reference to Figure,the inputs ID13 and ID14, due to the commonterminal, must be powered at the same voltageto avoid dangerous short-circuits and/orthe powering of lower-voltage circuits at 230Vac.9. Connect the 0/10Vdc (optoisolated) analogue outputsThe zero volt must be the reference
20Connecting the analogue inputs 10. Connect the PWM analogue outputs (for phase cutting speed controllers)11. Connect the digital outputs (up to 13 with electromechanical relays)
21Evd 400The EVD 400 driver for EEV with two pole stepper motors , is a controller that manages the electronic expansion valve.This function is achieved by optimising the opening of the valve using a PID algorithm and special control routines.The module is fitted with an Rs485/Tlan interface for connection to a Pco1via Tlan protocol
22Supervisory systems Optional card used to interface with a HAYES standard modem.The maximun baudrate is baudOptional card for interfacing with an RS485 network.The maximun baudrate is baud
23Supervisory systemsThe cards are used to interface the pCO1 to a LonWorks network. They differ by the type of interface on the LonWorks network side:Interface to FFt-10A 78kbs (TPFT-10)The baudrate must be set to 4800Interface to RS kbs (TP485-39).The baudrate must be set to 4800
24Supervisory systems pCO Web Ethernet™ interface board Used to interface the pCO controllers with theBACnet™ and SNTP protocols,emerging standards in the HVAC industrypCOWeb is an accessory for the pCO* series products (excluding the pCOB*series) fitted with a serial port and communication via the data protocol.pCOWeb acts a “gateway”, that is, a translator between the “Uniflairsupervisor” data protocol and the Ethernet network protocols commonly usedto connect the computers in a building.
25Supervisory systemsProvides communication with the TREND interface, a commonly-used buildingmanagement system in english-speaking countries.
26Optional FeaturesOption that allows the management of the time and date,it and includes buffer RAM for data relating to thesoftware application.Optional module for expanded the pCO1 memory(event log or Black-box features), and for the managementof the time and date
27Optional FeaturesThe cards can be used to transfer (upload ad dowload)the aplication software. The key has 2MB flash memory.Carel supply the key with BOOT and BIOS that manage 1MB,in this way the same key can be used with pCO1 contollers that have either1MB or 2MB flash memory chips.
28Optional FeaturesThis interface is used to control the main parameters of theCarel OEM humidifiers (water level and conductivity in the cylinder,TAM current power sensor) directly from the pCO sistema controllers.The values read by the special sensors are converted into signals that arecompatible with the inputs on the control board. The board is managedby the software application running in the pCO controller.
29Optional FeaturesThe expansion boards belong to the pCO sistema family and have beendesigned to increase the I/Os on the pCO3, pCOXS, pCO1, pCO2 controllers.A maximum of 5 expansion boards for each pCO3, pCOXS, pCO1,pCO2 controller can be connected.
30Optional Features Possibility to control the same motherboard pCO1 with maximum 3 remote user terminal.The material needed to connect them isthe flat cable and the T-Derivator.For further information read the UG40 slides.
31Accessories / Kit Remote user terminal Serial card tLAN, MP-Bus Clock cardSerial card RS485Flooding detector standardFlooding detector+ flooding sencor additionalFlooding detector + flooding sensor sensible wideExternal limit temperature sensorExternal limit humidity sensorFire sensorSmoke sensorFire/Smoke sensor24Vac relay for fire/smoke alarm centralized