Evco C-PRO MEGA Applications Manual
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Evco C-PRO MEGA Applications Manual

Evco C-PRO MEGA Applications Manual

Programmable controller for single circuit, dual circuit and triple circuit compressor packs up to 8/12 compressors
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PROGRAMMABLE CONTROLLERS FOR
SINGLE CIRCUIT, DUAL CIRCUIT AND
TRIPLE CIRCUIT
COMPRESSOR PACKS
UP TO 8/12 COMPRESSORS
APPLICATION MANUAL
CODE 144RACKMGE04

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Summary of Contents for Evco C-PRO MEGA

  • Page 1 PROGRAMMABLE CONTROLLERS FOR SINGLE CIRCUIT, DUAL CIRCUIT AND TRIPLE CIRCUIT COMPRESSOR PACKS UP TO 8/12 COMPRESSORS APPLICATION MANUAL CODE 144RACKMGE04...
  • Page 2 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Important Please read these instructions carefully prior to installation and use, and follow all the precautions for installation and electrical connections; keep these instructions with the device for future consultation. The device must be disposed of in accordance with local regulations pertaining to the collection of electrical and electronic appliances.

  • Page 3: Table Of Contents

    Application 2: use of the C-PRO GIGA RACK (dual circuit control unit with separate condensation) ..........................10 Application 3: use of the C-PRO MEGA RACK with the C-PRO EXP MEGA I/O expansion unit (dual circuit control unit with separate condensation)...........11 Application 4: use of the C-PRO GIGA RACK with the C-PRO EXP GIGA I/O expansion unit (dual circuit control unit with separate condensation)............12...
  • Page 4 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6.4.8 Inverter configuration ....................82 6.4.9 Compressors of different nominal power..............83 6.4.10 Suction line loss of load compensation................84 6.4.11 Refrigeration power incrementing at high pressures ...........85 Condensation regulation......................86 6.5.1 Side band regulation.....................86 6.5.2...

  • Page 5: General Information

    Continuous generation of cold is required for this, using a process which must continue without any interruptions, except for normal maintenance operations. The C-PRO MEGA and C-PRO GIGA controllers are dedicated to this process, managing all the components of the refrigeration circuit, maintaining the required conditions with the greatest possible efficiency (greater output = lower running costs), with optimal handling of mechanical components in order to reduce breakdowns (for example, fewer start-ups = less mechanical stress).
  • Page 6 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL C-PRO MEGA Page...
  • Page 7 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL C-PRO GIGA Page...

  • Page 8: Applications

    Total No. of analogue inputs = 8 Total No. of analogue outputs = 4 3) Application 3: C-PRO MEGA RACK + C-PRO EXP MEGA (e.g. for dual circuit control units) Total No. of digital outputs = 8 + 8 = 16 Total No.

  • Page 9: Application 1: Use Of The C-Pro Mega Rack (Single Circuit Control Unit)

    2.1 Application 1: use of the C-PRO MEGA RACK (single circuit control unit) As a preset configuration, the C-PRO MEGA RACK is configured to manage single circuit compressor packs; the services mentioned in the figure below refer specifically to the preset configurations.

  • Page 10: Application 2: Use Of The C-Pro Giga Rack (Dual Circuit Control Unit With Separate Condensation)

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.2 Application 2: use of the C-PRO GIGA RACK (dual circuit control unit with separate condensation) The C-PRO GIGA RACK is pre-configured to control dual circuit compressor packs; the services mentioned in the figure below refer precisely to the preset configurations.

  • Page 11: Application 3: Use Of The C-Pro Mega Rack With The C-Pro Exp Mega I/O Expansion Unit (Dual Circuit Control Unit With Separate Condensation)

    EXP MEGA I/O expansion unit (dual circuit control unit with separate condensation) The C-PRO MEGA RACK is pre-configured to control single circuit compressor packs; the services mentioned in the figure below refer to an example of a dual circuit control unit with separate condensation.

  • Page 12: Application 4: Use Of The C-Pro Giga Rack With The C-Pro Exp Giga I/O Expansion Unit (Dual Circuit Control Unit With Separate Condensation)

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.4 Application 4: use of the C-PRO GIGA RACK with the C-PRO EXP GIGA I/O expansion unit (dual circuit control unit with separate condensation) The C-PRO GIGA RACK is factory pre-configured to control dual circuit compressor packs; the services mentioned in the figure below refer to an example of a dual circuit control unit with separate condenser, where the controller is used with an I/O expansion unit.

  • Page 13: Controller Electrical Connections

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.5 Controller electrical connections The layout relating to the controllers electrical connections is shown below, with tables listing the meanings of the inputs and outputs. 2.5.1 C-PRO MEGA RACK electrical connections...

  • Page 14: C-Pro Giga Rack Electrical Connections

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.5.2 C-PRO GIGA RACK electrical connections Page...

  • Page 15: Input And Output Identification Tables

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.5.3 Input and output identification tables Card with 12 VDC + 12 VDC dual power supplies Abbre Conn. Description C1-1 main card power supply input (+13 VDC) C1-2 main power supply reference...
  • Page 16 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Abbre Conn. Description JK-3 COM 4 relay No. 4 common connection JK-4 NO 4 relay No. 4 contact normally open JK-5 COM 5 relay No. 5 common connection JK-6 NO 5 relay No.
  • Page 17 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Other connectors (not present on the C-PRO MEGA RACK controller) Abbre Conn. Description JN-1 NC 9 relay No. 9 contact normally closed JN-2 COM 9 relay No. 9 common connection JN-3 NO 9 relay No.
  • Page 18 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL JMP3 CAN terminator Jumper not inserted Termination (120?) not inserted Jumper inserted Termination (120?) inserted JMP4 Local CAN serial port baud rate selection Jumper A inserted Jumper B inserted Baud rate = 20K...

  • Page 19: Preset Configurations

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.6 Preset configurations The controller preset configurations are reported below. 2.6.1 C-PRO MEGA RACK preset configurations (single circuit compressor packs) Analogue inputs Digital outputs Digital inputs Suction probe 4 Compressors 4 compressor thermals...

  • Page 20: C-Pro Giga Rack Preset Configurations (Dual Circuit Compressor Packs)

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.6.2 C-PRO GIGA RACK preset configurations (dual circuit compressor packs) Analogue inputs Digital outputs Digital inputs Suction probe C1 2 Compressors C1 4 compressor thermals Supply probe C1 2 Compressors C2...

  • Page 21: I/O Expansion Unit Electrical Connections

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.7 I/O expansion unit electrical connections The layout relating to the expansion unit electrical connections is shown below, with tables listing the meanings of the inputs and outputs. 2.7.1 C-PRO EXP MEGA electrical connections...

  • Page 22: C-Pro Exp Giga Electrical Connections

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.7.2 C-PRO EXP GIGA electrical connections Page...

  • Page 23: Input And Output Identification Tables

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2.7.3 Input and output identification tables Card with 12 VDC power supply Abbre Conn. Description C1-1 card power supply input (+13 V DC) C1-2 power supply reference JD-1 active probe power supply (*1) JD-2 No.1 configurable analogue input (NTC, 0..20 mA, 4..20 mA)
  • Page 24 Jumper B not inserted Baud rate = 500K PLEASE NOTE: The C-PRO MEGA RACK and the C-PRO GIGA RACK are configured by default to be able to work with an expansion unit (with standard configuration) and with a user interface (with standard...
  • Page 25 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL configuration) by simply connecting the network components. For further information please refer to the chapter “CAN connection” in the Hardware Manual. Page...

  • Page 26: Component Network And Accessories

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 3 COMPONENT NETWORK AND ACCESSORIES 3.1 Example Page...

  • Page 27: User Interface

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 4 USER INTERFACE 4.1 Display and keypad For the application there is an interface integrated with the controller (hereinafter referred to as “built-in”). It has a 4x20 character alphanumeric display, offer a range of keys for navigation/editing pages and several LEDs for viewing certain associated events.

  • Page 28: Page List

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL There are also 3 LEDs: associated with the K0 key, identifies whether there are any alarms. Off: there are no alarms. Flashing slowly: indicates the presence of new alarms Flashing rapidly: indicates that alarm pages are being viewed.
  • Page 29 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Password Each menu (besides the clock menu which is always accessible) is associated with a level which affects accessibility. Each level also has an associated password allowing access to the various functions present in that specific menu.
  • Page 30 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL The first page for each circuit: Stato circuito Set Point e Valore delle sonde di pressione Funzioni attive su circuito contains information on the circuit’s current status and active functions: refrigeration power increments...
  • Page 31 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL not yet visible on the page itself. In this specific case, once the screen highlight is on the third circuit line, pressing DOWN moves the display to the next screen: Service menu The user menu is a level 2 menu, i.e.
  • Page 32 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL In the REGULATION menu it is possible to set/view the parameters relating to the side band and neutral zone thermoregulations for compressors, fans and any inverters, for each circuit: ⋅ type of regulation ⋅...
  • Page 33 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL The SYSTEM menu contains a system configuration “Wizard” for configuring a number of circuits, activating unique condensation, the use of inverters, the number of compressors and increments, the number of fans, the number of safety devices to be used and the use of any expansion units. A page summarising the relays and selected digital inputs is presented for configuration purposes, indicating whether an expansion unit should be used, if selected.

  • Page 34: Conditioned Visibility

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 4.3 Conditioned visibility Conditioned visibility allows hiding certain parameters and status information on the basis of the configuration of certain parameters. For example, by setting neutral zone type regulation, the side...

  • Page 35: Configuration Parameters

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 5 CONFIGURATION PARAMETERS All the parameters managed by the application are listed below. For each parameter there is also a brief description, the range of values admissible, the units of measurement, the recommended default value and the menu in which it may be found.
  • Page 36 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Circuit 1 time bands. Circuit 1 Fan time band Sets the offsets to the fan Visible if PG01 PT71..74 offset (1..4) setpoints in relation to the 4 PF32 PF33 > 1 and Circuit 2 time bands.
  • Page 37 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Fan secondary Sets the offset value for use Visible if PG01 PUF2 setpoint offset of secondary setpoint from -20.0 20.0 > 1 and Circuit 2 fan digital input PG30 = 0 Fan sup.
  • Page 38 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Compressors 1 Compressor In manual operation, this to 10; Visibility PM21..30 MA-M forcing sets the number of forced *¹ (1..10) compressor steps Enables manual/automatic Compressors Enable operation of each PM33 11 and 12;...
  • Page 39 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Suction probe 3 Circuit 3 suction probe Visible if PG01 PM83 -9.9 MA-IO calibration calibration > 2 Supply probe 1 Circuit 1 supply probe PM84 -9.9 MA-IO calibration calibration Visible if PG01...
  • Page 40 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL offset. Circuit 1 of the compressor. Inverter comp. Minimum compressor value Visible if PG12 PC26 100.0 IS-RC min. Circuit 1 with circuit 1 inverter Inverter comp. Compressor speedup time Visible if PG12...
  • Page 41 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Circuit 2 the minimum value to the maximum value ( circuit 2 neutral zone reg.) Compressor min. Minimum suction setpoint Visible if PG01 PC52 setpoint value pertaining to the PH01 SPC3 IS-RC >...
  • Page 42 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Compressor Minimum insertion time for Visible if PG01 PC60 TOnMin subsequent compressor step PC61 IS-RC > 2 and Circuit 3 ( circuit 3 neutral zone reg.) PC54 = 1 Compressor Maximum insertion time for...
  • Page 43 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Minimum time for which the compressor must remain PC04 TMinOn IS-C on, even if switching off requested Minimum time for which the compressor must remain PC05 TMinOff IS-C off, even if switching on...
  • Page 44 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL HP prevention Set compressor increment Visible if PG01 PC73 22.0 PH03 PH04 IS-C C3 limit SP pressure (circuit 3) > 2 HP prevention Comp. increment pressure PC74 10.0 IS-C differential differential HP prevention Minimum comp.
  • Page 45 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Fan max, Maximum supply setpoint PF13 setpoint value pertaining to the 25.0 SPF1 PH04 IS-RF Circuit 1 circuit 1 fans Sets the type of regulation Fan regulation Side Side Neutral PF14...
  • Page 46 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Visible if PG01 Fan zone Zone value for neutral zone > 1 and PG30 = PF38 20.0 IS-RF Circuit 2 regulation of circuit 2 fans 0 and PF34 = 1 Visible if PG01...
  • Page 47 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Visible if PG01 Fan inverter Differential for fan > 2 and PG30 = PF64 minimum regulation with circuit 3 20.0 IS-RF 0 and Circuit 3 inverter PG52 = 1 Visible if PG01...
  • Page 48 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Floating Floating condensation PF72 condensation -20.0 20.0 °C IS-F temperature variation offset offset Set floating Minimum floating PF73 condensation 30.0 10.0 45.0 °C IS-F condensation limit value min. Set floating Maximum floating...
  • Page 49 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Card communication baud rate 0: 1200 KBit Modbus baud 9600 1200 19200 PH12 1: 2400 KBit IS-V rate 2: 4800 KBit 3: 9600 KBit 4: 19200 KBit Modbus parity 0: None...
  • Page 50 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL compensation line (neutral zone) 0: NO 1: YES Page...
  • Page 51 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Suction load Load loss compensation PH36 compensation IS-V factor offset Sets the display for Measurement temperature or pressure PH40 IS-V unit 0: Pressure (Pres.) (Pres.) (Temp.) 1: Temperature Sets the type of AI01...
  • Page 52 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Enable Enables the alarm pertaining compressor PA01 to compressor operation NO (0) YES (1) IS-S operation time times alarm Enable fan Enables the alarm pertaining PA02 operation time NO (0) YES (1)
  • Page 53 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL alarm diff. pressure alarm differential > 1 Circuit 2 suction Circuit 2 suction probe high Visible if PG01 PA27 HP alarm PA25 PH02 IS-S pressure alarm setpoint > 1 setpoint .
  • Page 54 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Visible if PG01 C3 supply LP Circuit 3 supply probe low PA39 PH03 PA41 IS-S > 2 and PG30 = alarm setpoint pressure alarm setpoint Visible if PG01 C3 supply LP...
  • Page 55 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Circuit 3 inverter Enables the compressor Visible if PG01 PG22 NO (0) SO (0) CO-W comp. enable with circuit 3 inverter > 2 Enable unique Sets unique condensation Dual – triple...
  • Page 56 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Sets the position of the Max = 8(16) digital output for on C-PRO C1 comp. DO HC01 compressor 1 13 (26) CO-Hw MEGA RACK; position Or compressor inverter *¹ Visibility consent position...
  • Page 57 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Sets the position of the Default = 5 digital output for Max = 8(16) HC04 Compressor C4 compressor 4 13 (26) CO-Hw on C-PRO DO position Or compressor inverter MEGA RACK;...
  • Page 58 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL for compressor 7 MEGA RACK; *¹ Visibility Max = 8(16) Sets the position of the on C-PRO C7 increment 2 HC27 increment 2 digital output 13 (26) CO-Hw MEGA RACK; DO position for compressor 7 *¹...
  • Page 59 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Max = 8(16) Sets the position of the on C-PRO C10 increment 3 HC40 increment 3 digital output 13 (26) CO-Hw MEGA RACK; DO position for compressor 11 *¹ Visibility Sets the position of the...
  • Page 60 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Default = 0 Sets the position of the Max = 8(16) Fan 4 DO digital output for fan 4 on C-PRO HF04 13 (26) CO-Hw Or fan inverter consent position MEGA RACK;...
  • Page 61 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL SYSTEM BUILDER MENU PARAMETERS – Other hardware digital input/output positions Sets the position of the Max =10(18) Global OnOff DI Hd01 system global on/off digital 12 (22) CO-Hw on C-PRO position...
  • Page 62 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Sets the position of the Default = 0 circuit 2 supply pressure- Max =10(18) switch high pressure alarm on C-PRO C2 supply HP Hd24 digital input 12 (22) CO-Hw MEGA RACK;...
  • Page 63 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Sets the position of the compressor 2 thermal alarm =10(18) on digital input C-PRO Comp. 2 thermal Hd42 12 (22) CO-Hw DI pos. MEGA RACK; Visibility *¹ Sets the position of the...
  • Page 64 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL alarm digital input C-PRO MEGA RACK; Visibility *¹ Sets the position of the compressor 11 thermal =10(18) on alarm digital input C-PRO Comp. 11 Hd51 12 (22) CO-Hw thermal DI pos.
  • Page 65 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Sets the position of the compressor 4 pressure- =10(18) on switch alarm digital input Compressor 4 C-PRO Hd64 pressure-switch 12 (22) CO-Hw MEGA DI pos. RACK; Visibility *¹ Sets the position of the...
  • Page 66 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL input C-PRO MEGA RACK; Visibility *¹ Max =10(18) on C-PRO Fan 1 thermal DI Sets the position of the fan 1 Hd81 12 (22) CO-Hw MEGA RACK; pos. thermal alarm digital input *²...
  • Page 67 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Max =10(18) on C-PRO Fan 6 thermal DI Sets the position of the fan 6 Hd86 12 (22) CO-Hw MEGA RACK; pos. thermal alarm digital input *² Visibility Max =10(18) on C-PRO...

  • Page 68: Regulations

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6 REGULATIONS 6.1 Machine configuration A Wizard (System builder menu) allows assisted configuration of the machine. The first choice refers to the number of circuits (1, 2 or 3) by means of parameter PG01; in the case of dual and triple circuit machines, the selection of the type of condensation, single or separate, (PG30) and the presence, or otherwise, of an expansion unit (PG02) are also important.

  • Page 69: Machine And Individual Circuit Status

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL The same wizard also sets the number of compressors and fans for each circuit, the presence of an inverter, compressors and fans, the number of increments and compressor safety devices and enables fan safety devices.
  • Page 70 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL ⋅ be switched to the ON state if fulfilling the “OFF by supervisor” conditions, and the “OFF by digital input” condition is not met. The machine On/Off key is the ESC key, pressed for approx. 2 seconds.

  • Page 71: Compressor Regulation

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6.3 Compressor regulation Control of compressor suction pressure envisages the management of the latter in order to reach and maintain a defined working pressure value: depending on the type of control (side band or neutral zone) and the use, or otherwise, of inverters for fine adjustment, four types of regulation are envisaged.

  • Page 72: Neutral Zone Regulation

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL The PC78 Sideband step overlap parameter allows improvements in the behaviour of this type of regulation, which requires broad proportional bands in order to be stable, thus modifying the subdivision of the regulation band between steps:...

  • Page 73: Side Band Regulation With Inverter

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL the zone, the on and off requests for the various steps must be timed. The relevant parameters are as follows: ⋅ Minimum switch-on time (NZ_TOnMin) ⋅ Maximum switch-on time (NZ_TOnMax) ⋅...

  • Page 74: Neutral Zone Regulation With Inverter

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL The range of values the inverter output may assume is comprised of between 0 and 100 percentage points, with two decimal places. By enabling the inverter, for a given number of compressors, one step is lost, which will be replaced by regulation with inverter on the first compressor.

  • Page 75: Compressor Management

    6.4 Compressor management The program is capable of managing up to a maximum of 12 compressors (8 if a C-PRO MEGA is used) of equal, or different nominal power, divided over three circuits; in the case of equal nominal power, it is also possible to manage up to 3 increment devices per compressor.

  • Page 76: Compressors Per Circuit

    Depending on machine type, there are precise configurations relating to the compressors to be used for each circuit. Single-circuit All 12 (8 if using C-PRO MEGA) compressors can be used without limitations. Indeed the circuit is unique. Dual-circuit and triple-circuit The sum of the compressors used in the two/three circuits, including the inverters, must not exceed 12 (8 if using C-PRO MEGA);...

  • Page 77: Compressor Rotation

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 5. Alarm: the compressor is off and in the alarm state. In this state, the user interface displays the message “ALL”. 6. Manual: the compressor is in manual operational mode. In this state, the user interface displays the message “MAN”.

  • Page 78: Increment Management

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Switch off : C12 . … C4 . C3 . C2 . C1 3) FIFO + time of operation This type of rotation functions by considering the number of operating hours for each compressor.
  • Page 79 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Increment number By means of the appropriate parameter (PG04), it is possible to select one, two or three equal powered increments for each of the configured compressors. Each compressor will have the same number of available increments.

  • Page 80: Protective Device Timings

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Switch off : ppCppCppC. The program favours the complete switching off of individual compressors prior to moving to the following compressor. With CCCpppppp type switching on and ppppppCCC type switching off, the individual step switch on/off logic follows this example (example for 3 compressors): Compressor switch on : C1 .

  • Page 81: Startup Delay From Reset

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL SpeedUp time. If regulation by means of inverter is set, then this parameter, if other than zero, keeps the inverter output at maximum value (100.0%) with each new step switch on request.

  • Page 82: Inverter Configuration

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL The “compressor high/low pressure pressure-switch” safety device manages up to a maximum of 6 compressors and is enabled by setting two parameters as follows: Safety device number: 2 / 3 Safety device type: 2 / 4...

  • Page 83: Compressors Of Different Nominal Power

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 3) N°2 circuit (PG01=2), n°1 circuit 1 compressor, n°2 circuit 2 compressors (PG11=1, PG15=3), only circuit 2 inverter enabled (PG12=0, PG16=1). A correct configuration is: HC01 = 1 -> digital output for the circuit 1 first hermetic compressor HC02 = 2 ->...

  • Page 84: Suction Line Loss Of Load Compensation

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL ⋅ In the neutral zone: the combination remains unchanged. ⋅ In the on zone: the combination of compressors is recalculated in order to guarantee power greater than that provided by the previous combination.

  • Page 85: Refrigeration Power Incrementing At High Pressures

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6.4.11 Refrigeration power incrementing at high pressures In order to avoid tripping the condensation high pressure pressure-switch, with consequent blocking of cold production, it is possible to reduce the refrigeration power and consequently the power to be exchanged by the condenser, thus reducing condensation pressure.

  • Page 86: Condensation Regulation

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6.5 Condensation regulation Condensation management envisages control of the supply pressure using the fans: depending on the type of control (side band or neutral zone) and the use, or otherwise, of inverters for fine adjustment, four types of regulation are envisaged.

  • Page 87: Side Band Regulation With Inverter

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL ⋅ Side band suction SetPoint (SP) Outwith said neutral zone, device on or off requests for the configured fans will follow this logic: ⋅ Switch on: when the supply pressure exceeds the setPoint + Neutral Zone threshold ⋅...

  • Page 88: Neutral Zone Regulation With Inverter

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL If the value measured by the probe is between the value of SP + OFSI and the value of SP + OFSI + ID, the regulator output will assume a value proportional to the supply probe value.

  • Page 89: Unique Condensation (Dual/Triple Circuits Only)

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL ⋅ when the inverter reaches the maximum value one of the other fans is requested. In the case where the on zone remains ongoing one or all the fans are switched on and the inverter value remains at maximum.

  • Page 90: Fan Management

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6.6 Fan management The program is capable of managing up to a maximum of 12 fans (8 if using C-PRO MEGA) divided according to circuit. A digital input for safety devices and a digital output for switching on/off may be associated with each fan.

  • Page 91: Fan Rotation

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 4. On: the fan is on. In this state, the user interface displays the message “ON”. 5. Awaiting switch on: the fan is about to be switched on, and is currently waiting protective device waiting times.

  • Page 92: Protective Device Timings

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 2) LIFO This follows “Last In First Out” logic, i.e. the last fan switched on will be the first to be switched off. Example. Switch on : F1 . F2 . F3 . F4 … . F12 Switch off : F12 .

  • Page 93: Safety Device Inputs

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Neutral zone timings These parameters are used to time the switching on and off requests for the various condensation devices. Minimum switch on/off request time - TOn/Off For these parameters, please refer to the description given in section 2.5.2.

  • Page 94: Miscellaneous Controls

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6.7 Miscellaneous controls 6.7.1 Inverter configuration (compressors/fans) If selected, the inverter is always the first compressor in each circuit: ⋅ 1 Circuit: the inverter (if enabled) is compressor 1 ⋅ 2 Circuits: the circuit 1 inverter (if enabled) is compressor 1, and the circuit 2 inverter (if enabled) is the first compressor configured on the second circuit ⋅...

  • Page 95: Compressor Time Bands

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL is not possible. To correctly configure this feature, simply enable at least one compressor/fan inverter, depending on the type enabled, the other type will be automatically excluded from the analogue outputs.

  • Page 96: Fan Time Bands

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Band start Offset Setpoint Description 02:00:00 +0.3 1.3 bar From 02:00:00 to 07:15:00 07:15:00 +0.1 1.1 bar From 07:15:00 to 02:00:00 07:15:00 1.0 bar 07:15:00 1.0 bar During an ERTC alarm (clock alarm), the time band function is automatically disabled and LED L2 on the display stays on, until the alarm is reset.

  • Page 97: Digital Input Setpoint Alteration

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL ⋅ Flashes slowly if only one of the compressor and fan setpoints is altered. ⋅ Remains on if both setpoints are altered by the time bands. ⋅ Remains off if there is no condition.

  • Page 98: Floating Condensation Management

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL To restore the compressor to normal use, it is necessary to reset the parameter compressor enable to the value “A” (Automatic), otherwise, the compressor in question will continue to operate in manual mode, not fulfilling the switch on and/or off requests calculated by the selected regulation.

  • Page 99: Temperature Probes

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 6.7.8 Temperature probes The application is capable of managing up to two auxiliary temperature probes: environment probe and external probe. In order to take advantage of these two temperature transducers, it is necessary to enable (from the installer ->...

  • Page 100: Diagnostics

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 7 DIAGNOSTICS The application is capable of managing a series of alarms relating to the system compressors, fans, circuits and functions. Based on the various alarm types, it is possible to configure resets (manual or automatic), possible signalling delays and the actions to be executed in specific cases.

  • Page 101: Automatic Alarms

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL At this point, if there are no other alarms, a page will appear indicating “No active alarms”, LED L0 will be switched off and the machine will return to normal operation, or the page relating to the subsequent active alarm will be displayed.
  • Page 102 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL (if enabled) - Num. comp. ON configurable ES05 C3 suction probe faulty or disconnected Auto - Inverter forced to 100% Configurable delay (if requested and if only comp. on circuit) - Num. fan. ON...
  • Page 103 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL ¹ Manual AC09 Compressor 9 operating time Display ¹ Manual AC10 Compressor 10 operating time Display ¹ Manual AC11 Compressor 11 operating time Display ¹ Manual AC12 Compressor 12 operating time Display ¹...

  • Page 104: Alarm Relays

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL ACC1 C1 common oil differential Settable Display Configurable delay AFC1 C1 common fan thermal Manual Display AL32 C2 supply pressure high Auto All fans ON AL37 C2 suction pressure high Auto All comp.
  • Page 105 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL By means of the relevant parameter (PH18) it is possible to establish the polarity (NO, or NC) of the various alarm digital outputs. Page...

  • Page 106: List Of Modbus Variables

    C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 8 LIST OF MODBUS VARIABLES It is possible to control the application by means of a supervisor module, using the Modbus protocol. Communication uses an RS485 serial interface, already built in to the controller.
  • Page 107 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Bit1=AC41, Bit2=AC42, Bit3=AC43, Bit4=AC44, Bit5=AC45, Bit6=AC46, PackedAlarmW4 65535 Bit9=AC51, Bit10=AC52, Bit11=AC53, Bit12=AC54, Bit13=AC55, Bit14=AC56 Bit1=AC01, Bit2=AC02, Bit3=AC03, Bit4=AC04, Bit5=AC05, Bit6=AC06, PackedAlarmW5 65535 Bit7=AC07, Bit8=AC08, Bit9=AC09, Bit10=AC10, Bit11=AC11, Bit12=AC12 Bit1=AF01, Bit2=AF02, Bit3=AF03, Bit4=AF04,...
  • Page 108 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1287 CmpInv_actualSet_Circuit1 -145.0 625.5 1288 FanInv_actualSet_Circuit1 -145.0 625.5 1289 PowerRequested_Circuit1 1290 PowerSupplied_Circuit1 1291 StatusCircuit2 1292 Cmp_actualSetPoint_Circuit2 -145.0 625.5 1293 Fan_actualSetPoint_Circuit2 -145.0 625.5 1294 CmpInv_actualSet_Circuit2 -145.0 625.5 1295 FanInv_actualSet_Circuit2 -145.0 625.5 1296 PowerRequested_Circuit2...
  • Page 109 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1557 PT34_Cmp_TBOffset4_Circuit3 -290.0 290.0 1558 PT50_Fan_EnableTimeBands 1559 PT51_Fan_startTB1 ( Low ) 86399 1560 PT51_Fan_startTB1 ( High ) 1561 PT52_Fan_startTB2 ( Low ) 86399 1562 PT52_Fan_startTB2 ( High ) 1563 PT53_Fan_startTB3 ( Low )
  • Page 110 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1595 PUF3_Fan_SecSPOffset_ByDI_Circuit3 -290.0 290.0 1596 PUF6_Fan_SecSPOffset_BySup_Circuit3 -290.0 290.0 1597 PM00_Cmp_LimitHours ( Low ) 20000 500000 1598 PM00_Cmp_LimitHours ( High ) 1599 PM01a10_31_32_V_HoursCmp[0] ( Low ) 500000 1600 PM01a10_31_32_V_HoursCmp[0] ( High )
  • Page 111 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1633 PM11a20_33_34_En_Manual_Comp[10] 1634 PM11a20_33_34_En_Manual_Comp[11] 1635 PM21a30_35_36_ForzCmp[0] 1636 PM21a30_35_36_ForzCmp[1] 1637 PM21a30_35_36_ForzCmp[2] 1638 PM21a30_35_36_ForzCmp[3] 1639 PM21a30_35_36_ForzCmp[4] 1640 PM21a30_35_36_ForzCmp[5] 1641 PM21a30_35_36_ForzCmp[6] 1642 PM21a30_35_36_ForzCmp[7] 1643 PM21a30_35_36_ForzCmp[8] 1644 PM21a30_35_36_ForzCmp[9] 1645 PM21a30_35_36_ForzCmp[10] 1646 PM21a30_35_36_ForzCmp[11] 1647 PM37_Forz_Cmp_Inverter_C1 0.00 0.00...
  • Page 112 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1671 PM41a50_71_72_V_HoursFan[9] ( High ) 1672 PM41a50_71_72_V_HoursFan[10] ( Low ) 500000 1673 PM41a50_71_72_V_HoursFan[10] ( High ) 1674 PM41a50_71_72_V_HoursFan[11] ( Low ) 500000 1675 PM41a50_71_72_V_HoursFan[11] ( High ) 1676 PM51a60_73_74_En_Manual_Fan[0] 1677 PM51a60_73_74_En_Manual_Fan[1]...
  • Page 113 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1709 PM87_Taratura_AI07 -19.0 19.0 1710 PM88_Taratura_AI08 -19.0 19.0 1711 PM90_LastMaintainDATE ( Low ) 2147483647 1712 PM90_LastMaintainDATE ( High ) 0=FIFO, 1=LIFO, 1713 PC01_Cmp_Rotation_Type 2=FIFO+Hr, 3=LIFO+Hr 0=CpCp_pCpC, 1=CCpp_ppCC, 1714 PC02_Cmp_ModeCCpp_Type 2=CpCp_ppCC, 3=CCpp_pCpC...
  • Page 114 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1744 PC36_Cmp_PI_Ti_Circuit2 1745 PC37_Cmp_PI_Diff_Circuit2 290.0 1746 PC38_Cmp_NZ_Zone_Circuit2 290.0 1747 PC39_Cmp_NZ_DiffOutZone_Circuit2 290.0 1748 PC40_Cmp_NZ_TOnMin_Circuit2 1749 PC41_Cmp_NZ_TOnMax_Circuit2 1750 PC42_Cmp_NZ_TOffMin_Circuit2 1751 PC43_Cmp_NZ_TOffMax_Circuit2 1752 PC44_Cmp_Inverter_Diff_Circuit2 290.0 1753 PC45_Cmp_Inverter_OffsetSP_Circuit2 -290.0 290.0 1754 PC46_Cmp_Min_Inverter_Circuit2 0.00 0.00 100.00...
  • Page 115 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1781 PC76_PartLimit 1782 PC78_OverloadSteps_Cmp 1783 PC81a92_PowerCmp[0] 5000 1784 PC81a92_PowerCmp[1] 5000 1785 PC81a92_PowerCmp[2] 5000 1786 PC81a92_PowerCmp[3] 5000 1787 PC81a92_PowerCmp[4] 5000 1788 PC81a92_PowerCmp[5] 5000 1789 PC81a92_PowerCmp[6] 5000 1790 PC81a92_PowerCmp[7] 5000 1791 PC81a92_PowerCmp[8] 5000...
  • Page 116 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1817 PF37_Fan_PI_Diff_Circuit2 290.0 1818 PF38_Fan_NZ_Zone_Circuit2 290.0 1819 PF40_Fan_NZ_TOnOff_Circuit2 1820 PF44_Fan_Inverter_Diff_Circuit2 290.0 1821 PF45_Fan_Inverter_OffsetSP_Circuit2 -290.0 290.0 1822 PF46_Fan_Min_Inverter_Circuit2 0.00 0.00 100.00 1823 PF47_Fan_Inverter_TSpeedUp_Circuit2 1824 PF48_Fan_InverterTime_Circuit2 1825 PF51_Fan_OnErrorProbe_Circuit3 1826 PF52_Fan_MinSetPoint_Circuit3 -145.0 625.5 1827 PF53_Fan_MaxSetPoint_Circuit3 25.0...
  • Page 117 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1854 PA12_ThermalCmp_ResetType 1855 PA13_PressSwitchCmp_ResetType 1856 PA14_OilDiffCmp_ResetType 1857 PA15_SetPoint_LP_Suction_C1 -145.0 625.5 1858 PA16_Diff_LP_Suction_C1 290.0 1859 PA17_SetPoint_HP_Suction_C1 -145.0 625.5 1860 PA18_Diff_HP_Suction_C1 290.0 1861 PA19_SetPoint_LP_Supply_C1 -145.0 625.5 1862 PA20_Diff_LP_Supply_C1 290.0 1863 PA21_SetPoint_HP_Supply_C1 20.0 -145.0 625.5...
  • Page 118 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1892 PH11_Modbus_Address 1893 PH12_Modbus_Baud 1894 PH13_Modbus_Parity 1895 PH14_Modbus_StopBit 1896 PH15_SetDefault_Par 1897 PH16_Cmp_SecuritiesType 1898 PH17_Logic_DI_Alarm 1899 PH18_Logic_DO_Alarm 1900 PH19_Logic_DI_Other PH20=0: 0=0, 1=1; 1901 PH20_LogicCmdInverter_Comp PH20=1: 0=1, 1=0; PH21=0: 0=0, 1=1; 1902 PH21_LogicCmdInverter_com PH21=1: 0=1, 1=0;...
  • Page 119 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1928 PG16_EnCmpInverter_Circuit2 1929 PG21_CmpNumber_Circuit3 1930 PG22_EnCmpInverter_Circuit3 1931 PG30_En_UniqueCondenser 1932 PG32_Fan_EnSecurities 1933 PG41_FansNumber_Circuit1 Value=3 on C-PRO MEGA 1934 PG42_EnFanInverter_Circuit1 1935 PG45_FansNumber_Circuit2 Value=0 on C-PRO MEGA 1936 PG46_EnFanInverter_Circuit2 1937 PG51_FansNumber_Circuit3 1938 PG52_EnFanInverter_Circuit3 1939 HC01a10_50_60_PosDO_Comp[0]...
  • Page 120 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL 1963 HC21a30_52_62_PosDO_LS2[0] Max=16 on C-PRO MEGA 1964 HC21a30_52_62_PosDO_LS2[1] Max=16 on C-PRO MEGA 1965 HC21a30_52_62_PosDO_LS2[2] Max=16 on C-PRO MEGA 1966 HC21a30_52_62_PosDO_LS2[3] Max=16 on C-PRO MEGA 1967 HC21a30_52_62_PosDO_LS2[4] Max=16 on C-PRO MEGA 1968 HC21a30_52_62_PosDO_LS2[5]...
  • Page 121 C-PRO MEGA RACK & C-PRO GIGA RACK APPLICATION MANUAL Value=2, Max=16 1999 HA01_11_21_31_PosDO_Alarms[0] on C-PRO MEGA 2000 HA01_11_21_31_PosDO_Alarms[1] Max=16 on C-PRO MEGA 2001 HA01_11_21_31_PosDO_Alarms[2] Max=16 on C-PRO MEGA 2002 HA01_11_21_31_PosDO_Alarms[3] Max=16 on C-PRO MEGA 2003 Hd01_Pos_DI_Remote_OnOff Max=18 on C-PRO MEGA...

  • Page 122: Modbus Export Table (C-Pro Mega)

    8.1.2 Modbus export table (C-PRO MEGA) The Modbus export list for the C-PRO MEGA is the same, except that the parameters pertaining to compressor and fan numbers 9, 10, 11, 12 have no significance (since they are not managed by the application).
  • Page 123 Evco. Evco assume no responsibility in relation to the characteristics, technical data and any possible errors reported in this document or deriving from the use of the same. Evco cannot be held responsible for any damage caused by failure to observe these warnings. Evco reserves the right to make modifications of any kind and without prior warning without prejudicing the essential operational and safety characteristics.
  • Page 124 OVERSEAS OFFICES Control France 155 Rue Roger Salengro, 92370 Chaville Paris FRANCE Tel. 0033-1-41159740 Fax 0033-1-41159739 control.france@wanadoo.fr Evco Latina Larrea, 390 San Isidoro, 1609 Buenos Aires ARGENTINA Tel. 0054-11-47351031 Fax 0054-11-47351031 evcolatina@anykasrl.com.ar Evco Pacific 59 Premier Drive Campbellfield, 3061, Victoria Melbourne, AUSTRALIA Tel.

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