Danfoss MCX08M2 - User Manual

Installation Guide
Electronic controller
MCX08M2 with TTL
080R9348
AN358818754869en-000201
© Danfoss | DCS (vt) | 2021.01
AN358818754869en-000201 | 1
General features:
MCX08M2 is an electronic controller that holds all the typical functionalities of MCX controllers
in the compact size of 8 DIN modules: programmability, connection to the CANbus local
network, Modbus RS485 serial communication interface.
MCX08M2 with TTL version is moreover available in the version with display and power supply
110 – 230 V AC.
MCX08M2 with TTL
ANALOG INPUTS
NTC, 0/1 V, 0/5 V, 0/10 V, PT1000, selectable via software 4
Universal NTC, Pt1000, 0/1 V, 0/5 V, 0/10 V, ON/OFF, 0/20 mA, 4/20 mA, selectable via software 4
Total number 8
DIGITAL INPUTS
Voltage free contact 8
Total number 8
ANALOG OUTPUTS
0/10 V DC optoinsulated 2
0/10 V DC, PWM, PPM selectable via software 2
Total number 4
DIGITAL OUTPUTS
SPST relay 16 A (normally open contacts) 2
SPST relay 8 A (normally open contacts) 2
SPDT relay 8 A (changeover contacts) 4
Total number 8
OTHERS
Power supply 110 V / 230 V AC •
Connection for programming key •
Connection for remote display and keyboard •
Buzzer •
CANbus •
RTC clock •
Modbus RS485 serial interface •
Serial TTL •
Dimensions (DIN modules) 8
Mounting DIN rail

Danfoss MCX08M2 Specifications

General

Type	Programmable Controller
Power Supply	24 VAC/DC
Digital inputs	8
Analog inputs	2
Analog outputs	2
Communication port	RS485
Communication Protocol	Modbus RTU
Protection class	IP20
Housing material	Plastic
Input Signal	Digital, Analog
Output Signal	Analog
Operating temperature	-20°C to 60°C

Summary

Installation Guide

General Features Overview

Overview of MCX08M2 controller functionalities and connectivity options.

General Features and Warnings

Plastic Housing Features

Details on the plastic housing including DIN rail mounting, self-extinguishing properties, and ball test compliance.

Other Features

Operational characteristics like operating conditions, protection index, and software class.

Compliance Standards

EU standards compliance including Low Voltage Directive and EMC Directive.

General Safety Warnings

Important warnings regarding incorrect use, qualified personnel, and safety device limitations.

Installation Warnings

Precautions for mounting, handling, electrical connections, and avoiding environmental hazards.

Disposal Instruction

Guidelines for proper disposal of electrical components according to legislation.

Technical Specifications

Power Supply Specifications

Details on power supply requirements, voltage ranges, and insulation specifications.

Connection Diagram

Top Board Connection Diagram

Diagram illustrating the top board connections for analog inputs/outputs and digital inputs.

Bottom Board Connection Diagram

Diagram showing the bottom board connections for power supply, CAN, RS485, and digital outputs.

Connection Details

Connector Types and Dimensions

Details on connector types and dimensions for top and bottom boards.

User Interface Features

Information about the LCD display and keyboard features of the controller.

Device Dimensions

Graphical representation of the controller's physical dimensions with and without LCD.

Product and Accessories Part Numbers

Product Part Numbers

List of product part numbers for the MCX08M2 controller.

Accessories Part Numbers

List of available accessories and their corresponding part numbers.