Evco c-pro 3 nano Series

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Summary

INTRODUCTION

Initial Information Overview

Overview of c-pro 3 nano controllers, features, and applications.

Model Features and Purchasing Codes

Table detailing features and purchasing codes for different c-pro 3 nano models.

DESCRIPTION

Device Dimensions and Mounting

Provides device measurements and installation instructions with a drilling template.

Installation Precautions

Important precautions for installation, environment, and safety compliance.

ELECTRICAL CONNECTION

Connector Identification and Functions

Identifies and describes connectors for c-pro 3 nano basic, CAN, and plus models.

Power Supply and Input Wiring Diagrams

Illustrates power supply connection and wiring diagrams for analogue and digital inputs.

Output and Communication Wiring Diagrams

Shows wiring diagrams for analogue/digital outputs, INTRABUS, RS-485 MODBUS, and CAN ports.

USB and Network Connection Setup

Instructions for USB connections, fitting termination resistors, and network polarization.

Electrical Connection Safety

Safety precautions for electrical connections and device handling.

FIRST-TIME USE

Initial Setup Procedure

Step-by-step guide for initial setup, power-up, and configuration.

USER INTERFACE AND MAIN FUNCTIONS

User Interface Layout

Visual representation of the device's user interface with display and keys.

DEVICE CONFIGURATION

Accessing Configuration Menu

Steps to access the device configuration menu using the DOWN key.

Configuring Language, Date, and Time

Procedures to set the display language and internal clock (RTC).

Managing Configuration via USB

Steps for downloading and uploading device configuration using a USB flash drive.

List of Hardware Parameters

General Parameter Definitions

Details on general parameters like project number, firmware, serial number, and test info.

Analogue Input Parameters

Lists parameters for configuring analogue inputs (type, range, resolution).

Analogue Output and Timing Parameters

Parameters for analogue outputs, fan control, and phase cutting timing.

Network Configuration Parameters (CAN)

Parameters for CAN network, including device address, baud rate, and master function.

CAN Network Addressing and Bus Timing

Parameters for CAN network device node, address, timing, and bus status.

CAN Bus Communication Monitoring

Parameters related to CAN bus communication status, package counts, and errors.

CAN Transmission and Error Status

Parameters detailing CAN transmission errors, overflow, and reception errors.

ACCESSORIES

USB and Serial Interface Accessories

Describes USB extension cables, flash drives, and serial interface adapters.

Fan Regulator and Connection Kits

Details fan speed regulator and connection kits for various models.

TECHNICAL SPECIFICATIONS

General and Electrical Specifications

Covers device purpose, construction, measurements, mounting, protection, power supply, and connections.

Input;Output and Communication Port Specs

Details specifications for inputs, outputs, INTRABUS, CAN, and USB ports.

The c-pro 3 nano is a range of highly compact programmable controllers designed for HVAC/R and OEM applications, offering numerous inputs and outputs (up to 25) and enhanced memory capacity.

Function Description

The c-pro 3 nano functions as a built-in electronic device, serving as a function controller. It can be expanded with additional I/O by adding expansion modules, utilizing either a CAN port or a proprietary INTRABUS port. The CAN protocol allows for integration with the entire c-pro 3 series of controllers and displays. An optional MODBUS RTU interface is available in both master and slave formats, and the c-pro 3 nano plus model includes an RS-485 port, enabling simultaneous use of two MODBUS protocols. The application software is developed using the UNI-PRO 3 integrated development environment, which supports simple, intuitive, and portable design. The device features a standard USB port for easy programming during development and debugging, and for updates using common USB flash drives.

Important Technical Specifications

The c-pro 3 nano has a compact format with dimensions of 75.0 x 33.0 x 59.0 mm (2 15/16 x 1 5/16 x 2 5/16 in) and is designed for panel installation with snap-in brackets. It offers IP65 protection for the front. The device is available with 12 VAC or 24 VAC/DC power supply options.

Analogue Inputs:

PTC, NTC, or Pt 1000 probes: 5 inputs, configurable for dry contact digital input.
NTC probes, 0-5 V ratiometric, 0-10 V, 0-20 mA, or 4-20 mA transducers: 2 inputs (4 for 'plus' models), configurable for dry contact digital input.
Resolution: 0.1 °C (1 °F) for PTC/NTC/Pt1000, 0.01 V for 0-5 V transducers, 0.01 mA for 0-10 V/0-20 mA/4-20 mA transducers.
Measurement Ranges:
- PTC (KTY 81-121): -50 to 150 °C (-58 to 302 °F).
- NTC (83435): -50 to 120 °C (-58 to 248 °F).
- Pt 1000: -100 to 400 °C (-148 to 752 °F).
Input Resistance: ≥ 10 KΩ for 0-5 V, ≤ 200 Ω for 0-10 V/0-20 mA/4-20 mA.

Digital Inputs:

Dry contact and pulse trains up to 2 KHz: 2 inputs.
Dry contact: 1 input (3 for 'plus' models).

Analogue Outputs:

0-10 V, PWM, or phase cutting signal: 2 outputs.
0-10 V, 0-20 mA, or 4-20 mA signal: 2 outputs (only for 'plus' models).
Resolution: 0.01 V for 0-10 V, 0.05 mA for 0-20 mA/4-20 mA.
PWM Signal: 0-10 VDC (+16% -25%), 10 mA max, 10 Hz...2 KHz frequency, 0...100% duty.

Digital Outputs:

SPST electro-mechanical relay, 3 A res. @ 250 VAC: 6 outputs (7 for 'plus' models).
Reinforced insulation between each digital output connector and other components.

Communication Ports:

INTRABUS port (RS-485 MODBUS master/slave): 1 port, 10 m (32.8 ft) max length.
RS-485 MODBUS port: 1 port (for 'plus' models), 1,000 m (3,280 ft) max length.
CAN port: 1 port (for 'CAN' and 'plus' models), up to 1,000 m (3,280 ft) max length, baud rates from 20,000 to 500,000 baud.
USB port: 1 port, 1 m (3.28 ft) max length.

Clock:

Drift: ≤ 60 s/month at 25 °C (77 °F).
Battery Autonomy: > 6 months (with secondary lithium battery).
Charging Time: 24 h (charged by device power supply).

Environmental Conditions:

Operating Temperature: 0 to 55 °C (32 to 131 °F).
Storage Temperature: -20 to 70 °C (-4 to 158 °F).
Operating Humidity: Relative humidity without condensate from 5 to 95%.
Pollution Status: 2.

Usage Features

The c-pro 3 nano features a user-friendly interface with a double LED display (4 + 4 digits), function icons, and 4 capacitive touch keys, offering IP65 protection.

First-Time Use: Installation involves mounting, powering up for an internal test, configuring the device, disconnecting power, making electrical connections, and then powering up again.
Device Configuration: Access to configuration pages is managed via the DOWN key (held for 6s) to enter the "Menu InFo" submenu. Further navigation is done using UP/DOWN keys to select parameters and SET key to confirm. The ON/STAND-BY key returns to the main display.
Language Setting: The viewing language can be set via the "Menu EnG" submenu, selecting from available labels like "ItA" (Italian).
Date and Time Setting (c-pro 3 nano plus only): The date and time (year, month, day, hour, minute, second) can be set via the "Menu rtC" submenu.
Configuration Download/Upload: The device configuration can be downloaded to or uploaded from a USB flash drive. This involves connecting the USB drive, holding the DOWN key for 4s, navigating to the "Menu Strd" submenu, and using the SET key to initiate the transfer.
RS-485 MODBUS and CAN Network Termination: Micro-switches (1 for RS-485, 2 for CAN) on the device's left side allow fitting termination resistors to the first and last devices in the network to reduce signal reflections.
RS-485 MODBUS Network Polarisation: This can be configured using the UNI-PRO 3 development environment.

Maintenance Features

Electrical Connection Precautions: Ensure proper tightening torque for electrical screwdrivers. Allow the device to acclimatize for about an hour if moved from a cold to a warm place to prevent condensation. Verify that supply voltage, frequency, and power are within specified limits. Disconnect power before any maintenance.
Safety: The device is not to be used as a safety device. For repairs or further information, contact the EVCO sales network.
Disposal: The device must be disposed of according to local regulations for electrical and electronic waste.