C-PRO MEGA
PROGRAMMABLE CONTROLLERS
HARDWARE MANUAL
CODE 114CPRMHWE01
C-PRO MEGA HARDWARE 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.
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C-PRO MEGA HARDWARE MANUAL
Sommario
Introduction ........................................................................................................................................................................ 4
1 Components and Accessories network......................................................................................................................8
1.1 Built-in version example........................................................................................................................................................ 8
1.2 Sealed case version example.................................................................................................................................................. 9
2 Technical features ...................................................................................................................................................10
2.1 Connections ......................................................................................................................................................................... 10
2.2 C-PRO MEGA wiring layout............................................................................................................................................... 12
Jumpers and LEDs meanings ............................................................................................................................................................ 17
2.3 C-PRO MEGA Dimensions / Installations .......................................................................................................................... 20
3 C-PRO MEGA technical features........................................................................................................................... 23
3.1 General features ................................................................................................................................................................... 23
3.2Housing ........................................................................................................................................................................................ 23
3.2 General features ................................................................................................................................................................... 24
3.3 Electrical features ................................................................................................................................................................ 25
3.4 C-PRO MEGA built-in user interface.................................................................................................................................. 28
4 C-PRO EXP MEGA I/O expansion ........................................................................................................................ 30
4.1 C-PRO EXP MEGA wiring layout ...................................................................................................................................... 31
5. C-PRO EXP MEGA Dimensions / Installations....................................................................................................................... 34
6. Remote User interface.............................................................................................................................................35
6.1 V-VIEW............................................................................................................................................................................... 35
6.1.1.V-VIEW User Interface........................................................................................................................................................ 35
6.1.2 V-VIEW wiring layout......................................................................................................................................................... 37
6.1.3. V-VIEW specifications ....................................................................................................................................................... 37
7 Accessories ............................................................................................................................................................. 39
7.1 C-PRO AL switching feeder................................................................................................................................................ 39
7.1.1. C-PRO AL wiring layout ........................................................................................................................................... 40
8 Configuration of the supplied analogic outputs signal............................................................................................ 42
8.1.1 Parameters configuration relative to the analog output................................................................................................... 42
8.1.2 Closing the analogic output configuration procedure............................................................................................................. 43
9.1.1. Notes on the parameter of the controller relative to the CAN net configuration........................................................... 45
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C-PRO MEGA HARDWARE MANUAL
Introduction
The C-PRO MEGA f programmable controllers family is the right solution for refrigeration, ventilation and air
conditioning applications. Both in terms of controls, regulation and the user interface, the controller application
software is fully programmable, in a simple and intuitive way, thanks to the use of the UNI-PRO development
environment.
The C-PRO MEGA is available in a DIN rail version (see the pictueres below). It is available also in “open”
version only with plastic base for DIN rail mounting
By using the 8 relay outputs, it is possible to control various types of devices such as compressors, water
circulation pumps, defrosting elements, condensation or evaporation fans, cycle inversion valves, alarm
warning indicators etc.
The C-PRO MEGA is also equipped with 4 analog outputs 0,5-10 V, 0-20 mA or 4-20 mA.
The controller has 8 analog inputs :
- n° 2 for PTC probes / NTC probes / 0-5 V transducers / 0-10 V transducers / 0-20 mA transducers /
4-20 mA transducers
- n° 6 for NTC probes / 0-20 mA transducers / 40-20 mA transducers
C-PRO MEGA is also equipped with 10 low voltage digital input (12-24 Vac/dc) for normally open contact.
All the parameters may be set from the user interface.
The display is 4 x 20 font alphanumeric LCD; the keypad has 9 keys and 6 signal LED ; the sealed case and the
open versions have neither display nor keypad and must be used in conjunction with a remote terminal.
The controllers have the following serial communication ports:
• n° 1 optoinsulated RS-485 (always mounted on the controller) with EVCO or MODBUS
communication protocol
• n° 1 not optoinsulated LocalCAN (always mounted on the controller)
• n° 1 optoinsulated RS-485 or n° 1 RS-232 (on request, not available on built-in or open
versions)
• n°1 optoinsulated WideCAN (on request, available only on 128 KB memory version).
C-PRO MEGA has real time clock (always mounted on the controller).
With C-PRO EXP KILO, C-PRO EXP MEGA e C-PRO EXP GIGA, the I/O improvement is possible.
The following table shows the C-PRO MEGA main characteristics:
Dimensions Power supply
Analogic
Inputs
Digital
Inputs
Analogic
outputs
Digital
output
CAN
ports
UART
ports
C-PRO MEGA
14 DIN
modules
12 VDC
(main supply)
+
12 VDC
(secondary
supply)
or
24 VAC/DC
8 10 4 8
local
CAN
(standard)
+
wide
CAN
(optional)
RS-485
(standard)
+
RS-485
or
RS-232
(both
optional)
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C-PRO MEGA HARDWARE MANUAL
Attention :
With 12 Vdc + 12 Vdc power supply, the following ports and outputs are optoinsulated:
• the analogic output
• the RS-485 serial standard port
• the RS-485 serial (or RS-232) optional port
• the wide CAN port
In order to ensure the optoinsulation of these outputs, the controller must be supplied with two dc power
sources preferably insulated from each other (electrically insulated).
With 24 VAC/DC power supply , the following ports and outputs are not optoinsulated:
• the analogic outputs
• the RS-485 standard port
• the RS-485 (or RS-232) optional port
• the Wide-CAN port.
Optional RS-485 (or RS-232) port , is not available on the built-in and the open versions.
Optional wide CAN, is available only on 128 KB memory version.
Optional wide CAN, is not available in the open version controllers.
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C-PRO MEGA HARDWARE MANUAL
C-PRO MEGA
built-in version
C-PRO MEGA
Sealed Case Version
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C-PRO MEGA HARDWARE MANUAL
C-PRO MEGA
Open case version
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C-PRO MEGA HARDWARE MANUAL
1 Components and Accessories network
1.1 Built-in version example
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C-PRO MEGA HARDWARE MANUAL
1.2 Sealed case version example
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C-PRO MEGA HARDWARE MANUAL
2 Technical features
2.1 Connections
Power supply:
The C-pro MEGA family is available with two different version of power supply :
i. No optoinsulated internal switching 24Vac/dc version
ii. two separeted inputs 12 Vdc + 12 Vdc version. With this version the following ports and outputs are
optoinsulated:
• the analogic output
• the RS-485 serial standard port
• the RS-485 (or RS-232) optional serial port
• the Wide-CAN port
In order to ensure the optoinsulation of these outputs, the controller must be supplied with two dc power
sources preferably electrically insulated one from each other, for example by using an EVCO power supplier
“c-pro AL”. When the controller is powered with a 24 VAC/DC power supply, the over reported outputs and
ports are not opto-insulated. The connection cables length must be 1 m, maximum.
Analogic input connections:
The C-PRO MEGA has two analogic inputs (“universal” named) suitable for the NTC, PTC, Voltage (0-10V,
0-5V), Current (0-20mA, 4-20mA) sensors. The choice is automatically made by means the UNI-PRO
development system or parameters. A Jumper must be removed only for the 0-10V energized input (refer to the
physical layout section and jumpers).
The C-Pro MEGA has six analogic inputs (“configurable” named) suitable for the NTC and Current sensors (020mA, 4-20mA). The choice is automatically made by means the UNI-PRO development system or
parameters. Note that the six inputs are divided into three pairs; each pair must have the same input type.
The active probes may be fed using the VDC terminals (see physical layout) with a stabilized voltage of 12.5V
(total maximum current <=200mA). The length of the analogic input connections cables must be 3 m, at the
most.
Digital input connections :
The C-PRO MEGA has ten low-voltage optoinsulated digital inputs (12-24Vac/dc) . To benefit from the
optoinsulation features, it's recommended to separate the digital input feed from the main power supply of the
controller. If the C-PRO MEGA is fed using the C-PRO AL switching power supply, that can be used to feed
the controller and the digital inputs.
The length of the digital input connections cables must be 3 m, at the most.
Digital output connections :
C-PRO MEGA has 8 digital outputs. There are no groupings of terminals, therefore each individual contact can
be used for the declared specifications.
The length of the digital output connections cables must be 3 m, at the most.
Analogic output connections :
C-PRO MEGA has 4 optoinsulated analogic outputs (voltage or current). Both voltage and current selection
are achieved by using Jumpers (see section wiring layout) and parameters.
The length of the analogic output connections cables must be 3 m, at the most.
User interface connections:
The connection between C-PRO MEGA and the remote user interface has to be done with 4 wire cable (better
if it is two weaved couples).
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C-PRO MEGA HARDWARE MANUAL
The maximum length of the connection cables to the remote user interface depends of the CAN port baud rate .
Local CAN port:
- 10 m with 20.000 baud
- 5 m with 50.000 baud
- 2 m with 125.000 baud
- 1 m with 500.000 baud.
Wide CAN port:
- 1.000 m with 20.000 baud
- 500 m with 50.000 baud
- 250 m with 125.000 baud
- 50 m with 500.000 baud.
The LocalCAN port baud rate is settable by jumpers (see section wiring layout).
The WideCAN port baud rate is settable by parameter.
Connection with a remote expansion (or an other CAN controller) :
The connection between C-PRO MEGA and the remote expansion (or other CAN controller) has to be done
with 4 wire cable (better if it is two weaved couples).
The maximum length of the connection cables to the remote controllers or expansions depend on the CAN port
baud rate (see above section “User interface connections”)
C-PRO MEGA and the expansion ( or other CAN controller) power supplies has to be electrically
insulated one from the other.
Electrical wiring precautions
- do not work with electric or pneumatic screw-wrenches on the connectors of the controller
- if the device has been moved from a cold to a warm environment, humidity condensation may have
formed inside; please, wait approximately one hour before to switching it on .
- ensure that the voltage, frequency and operational power of the device are compatible with the local
power supply
- disconnect the power supply before proceeding with any kind of operation of maintenance
- do not use the device as a safety device
- for repairs and any information relating to the device, contact the Evco dealer network.
Cautions
Besides the maximum length of the connection cables, some other cautions have to be respected :
To avoid immunity problems, it is good practice to observe the following instructions:
- Avoid locations with antennas
- Do not wire probe inputs together with relay outputs; generally, avoid combining low and high voltage
- Avoid winding the wirings onto power components
To avoid safety problems, it is good practice to observe the following instructions:
- Avoid rooms with relative humidity >90%
- Avoid water
- Avoid corrosive environments
- Avoid explosive environments
Besides, ensure that the operating conditions correspond with the use limits indicated in the technical features.
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C-PRO MEGA HARDWARE MANUAL
2.2 C-PRO MEGA wiring layout
C-PRO MEGA is available in two different version : the first with 12 VDC + 12 VDC e the second with 24
VAC/DC power supply.
The C-PRO MEGA 12 VDC + 12 VDC wiring layout connection is reported here below.
C-PRO AL power supplier adoption is recommended .
Please, refer to the section “power supply” of capter 3 regarding the utilisation optoinsulation.
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C-PRO MEGA HARDWARE MANUAL
Following it is reported the C-PRO MEGA 24 VAC/DC version wiring layout connection; C-PRO AL power
supplier adoption is recommended
Please, refer to the section “power supply” of capter 3 regarding the utilisation optoinsulation.
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C-PRO MEGA HARDWARE MANUAL
The following table shows the available inputs and outputs on c-pro Mega :
Lower board 12 VDC + 12 VDC power supply version
Conn.
C1-1 VCC main card power supply (+13Vdc)
C1-2 GND Main power supply reference
JA-1 VDC power supply for active sensors (*1)
JA-2 AI 1 universal analogic input 1 (NTC, PTC, 0..5V, 0..10V, 0..20 mA, 4..20 mA)
JA-3 GND common terminal for analogic inputs
JB-1 VDC power supply for active sensors (*1)
JB-2 AI 2 universal analogic input 2 (NTC, PTC, 0..5V, 0..10V, 0..20 mA, 4..20 mA)
JB-3 GND common terminal for analogic inputs
JC-1 VDC power supply for active sensors (*1)
JC-2 AI 3 analogic input 3, configurable (NTC, 0..20 mA, 4..20 mA)
JC-3 AI 4 analogic input 4, configurable (NTC, 0..20 mA, 4..20 mA)
JC-4 GND common terminal for analogic inputs
JD-1 VDC power supply for active sensors (*1)
JD-2 AI 5 Analogic input 5, configurable (NTC, 0..20 mA, 4..20 mA)
JD-3 AI 6 Analogic input 6, configurable (NTC, 0..20 mA, 4..20 mA)
JD-4 AI 7 Analogic input 7, configurable (NTC, 0..20 mA, 4..20 mA)
JD-5 AI 8 Analogic input 8, configurable (NTC, 0..20 mA, 4..20 mA)
JD-6 GND common terminal for analogic inputs
JE-1 COM common terminal for digital inputs
JE-2 DI 1 digital input no. 1 Vac/Vdc
JE-3 DI 2 digital input no. 2 Vac/Vdc
JE-4 COM common terminal for digital inputs
JF-1 COM common terminal for digital inputs
JF-2 DI 3 digital input no. 3 Vac/Vdc
JF-3 DI 4 digital input no. 4 Vac/Vdc
JF-4 DI 5 digital input no. 5 Vac/Vdc
JF-5 DI 6 digital input no. 6 Vac/Vdc
JF-6 COM common terminal for digital inputs
JG-1 COM common terminal for digital inputs
JG-2 DI 7 digital input no. 7 Vac/Vdc
JG-3 DI 8 digital input no. 8 Vac/Vdc
JG-4 DI 9 digital input no. 9 Vac/Vdc
JG-5 DI 10 digital input no. 10 Vac/Vdc
JG-6 COM common terminal for digital inputs
YA-1 VDC 12 Vdc power supply output to a remote use interface
YA-2 CAN1+ CAN+ output to the Local-CAN
YA-3 CAN1- CAN- output to the Local-CAN
YA-4 GND GND power supply output to a remote use interface
JH-1 NC 1 normally closed contact relay no. 1
JH-2 COM 1 common relay no. 1
JH-3 NO 1 normally open contact relay no. 1
JI-1 NC 2 normally closed contact relay no. 2
JI-2 COM 2 common elay no. 2
JI-3 NO 2 normally open contact relay no. 2
JK-1 COM 3 common relay no. 3
JK-2 NO 3 normally open contact relay no. 3
JK-3 COM 4 common relay no. 4
JK-4 NO 4 normally open contact relay no. 4
JK-5 COM 5 common relay no. 5
Letter
code
Description
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C-PRO MEGA HARDWARE MANUAL
Conn.
JK-6 NO 5 normally open contact relay no. 5
JL-1 COM 6 common relay no. 6
JL-2 NO 6 normally open contact relay no. 6
JL-3 COM 7 common relay no. 7
JL-4 NO 7 normally open contact relay no. 7
JL-5 COM 8 common relay no. 8
JL-6 NO 8 normally open contact relay no. 8
YC-1 RS485+ RS 485 + serial port connector
YC-2 RS485- RS 485 - serial port connector
YC-3 GND* GND serial port connector
JM-1 AO 1 Analogic output no. 1 (0,5..10 V / 4..20mA)
JM-2 AO 2 Analogic output no. 2 (0,5..10 V / 4..20mA)
JM-3 AO 3 Analogic output no. 3 (0,5..10 V / 4..20mA)
JM-4 AO 4 Analogic output no. 4 (0,5..10 V / 4..20mA)
JM-5 GND* Common terminal for analogic outputs
C2-1 VCC* secondary power supply for optoinsulated serial ports and analog outputs (15Vdc)
C2-2 GND* Secondary power supply reference
Letter
code
YB PRG JST connector for programming purposes
Description
*1: VDC=12,5V Imax=200mA (total for all VDC terminal)
Lower board 24 VAC/DC power supply version with built-in switching feeder
Conn.
CA-1 VCC main card power supply (24Vac/dc)
CA-2 VCC main card power supply (24Vac/dc)
Letter
code
Description
Wide CAN Port (on request)
Conn.
YD-1 CAN0+ CAN + WideCAN port
YD-2 CAN0- CAN - WideCAN port
YD-3 GND* GND WideCAN port
Letter
code
Description
Second RS-485 port (on request)
Conn.
YE-1 RS485- RS 485 - serial port
YE-2 RS485+ RS 485 + serial port
YE-3 GND* GND serial port
Letter
code
Description
RS-232 Port (on request, alternative to second RS-485 port)
Conn.
YF-1 5Vdc RS 232 9-pin connector YF-2 Tx RS 232 9-pin connector – Transmitting data
YF-3 Rx RS 232 9-pin connector – Receiving data
YF-4 DTR/DSR RS 232 9-pin connector YF-5 GND RS 232 9-pin connector -
Letter
code
Description
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