Danfoss MCX08M2 Electronic Controller Installation Guide
- June 1, 2024
- Danfoss
Table of Contents
Danfoss MCX08M2 Electronic Controller
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 optoisolated| 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
General features and warnings
Plastic housing features
- DIN rail mounting complying with EN 60715
- Self-extinguishing V0 according to IEC 60695-11-10 and glowing/hot wire test at 960 °C according to IEC 60695-2-12
- Ball test: 125 °C according to IEC 60730-1. Leakage current: 250 V according to IEC 60112
Other features
- Operating conditions CE: -20T60 / UL: 0T55, 90% RH non-condensing
- Storage conditions: -30T80, 90% RH non-condensing
- To be integrated in Class I and/or II appliances
- Index of protection: IP40 only on the front cover
- Period of electric stress across insulating parts: long
- Suitable for use in environments with the degree of pollution 2
- Category of resistance to heat and fire: D
- Immunity against voltage surges: Category II
- Software class and structure: class A
Compliance
- This product is designed to comply with the following EU standards:
- Low voltage directive LVD 2014/35/EU:
- EN60730-1: 2011 (Automatic electrical control for household and similar use. General requirements)
- EN60730-2-9: 2010 (Particular Requirements for Temperature Sensing Controls)
- Electromagnetic compatibility EMC directive 2014/30/EU:
- EN 61000-6-3: 2007 +A1: 2011 (Emission standard for residential, commercial and light-industrial environments)
- EN 61000-6-2: 2005 (Immunity for industrial environments)
- RoHS directive 2011/65/EU and 2015/863/EU:
- EN50581: 2012
UL approval:
- UL file E31024
General warnings
- Every use that is not described in this manual is considered incorrect and is not authorised by the manufacturer
- Verify that the installation and operating conditions of the device respect the ones specified in the manual, especially concerning the supply voltage and environmental conditions
- This device contains live electrical components therefore all the service and maintenance operations must be performed by qualified personnel
- The device can’t be used as a safety device
- Liability for injury or damage caused by the incorrect use of the device lies solely with the user
Installation warnings
- Mounting position recommended: Vertical
- The installation must be executed according to the local standards and legislation of the country.
- Always operate on the electrical connections with the device disconnected from the main power supply
- Before carrying out any maintenance operations on the device, disconnect all the electrical connections
- For safety reasons, the appliance must be fitted inside an electrical panel with no live parts accessible
- Don’t expose the device to continuous water sprays or relative humidity greater than 90%.
- Avoid exposure to corrosive or pollutant gases, natural elements, environments where explosives or mixes of flammable gases are present, dust, strong vibrations or chock, large and rapid fluctuations in ambient temperature that in combination with high humidity can condensate, strong magnetic and/or radio interference (e.g. transmitting antennae)
- When connecting loads beware of the maximum current for each relay and connector
- Use cable ends suitable for the corresponding connectors. After tightening the screws of connectors, slightly tug the cables to check their tightness
- Use appropriate data communication cables. Refer to the Fieldbus Installation Guide for the kind of cable to be used and setup recommendations
- Reduce the path of the probe and digital input cables as much as possible, and avoid spiral paths enclosing power devices. Separate from inductive loads and power cables to avoid possible electromagnetic noises
- Avoid touching or nearly touching the electronic components fitted on the board to avoid electrostatic discharges
DISCLAIMER: Professional Use Only
- This product is not subject to the UK PSTI regulation, as it is for supply to and use only by professionals with the necessary expertise and qualifications. Any misuse or improper handling may result in unintended consequences.
- By purchasing or using this product, you acknowledge and accept the professional-use-only nature of its application.
- Danfoss does not assume any liability for damages, injuries, or adverse consequences (“damage”) resulting from the incorrect or improper use of the product and you agree to indemnify
- Danfoss for any such damage resulting from your incorrect or improper use of the product.
Disposal instruction
- Equipment containing electrical components may not be disposed of together with domestic waste. It must be separately collected with electrical and electronic waste according to local and valid legislation.
Technical specifications
Power supply
- 85 – 265 V AC, 50/60 Hz. Maximum power consumption: 20 VA. Insulation between the power supply and the extra-low voltage: reinforced
- 20 – 60 V DC e 24 V AC ± 15% 50/60 Hz SELV. Maximum power consumption: 10 W, 17 VA. Insulation between power supply and the extra-low voltage: Functional
| I/O | TYPE | NUM | SPECIFICATIONS |
|---|---|---|---|
| Analog inputs | NTC 0 / 1V 0 / 10V PT1000 | 4 | AI5, AI6, AI7, AI8 |
Analog inputs selectable via software between:
• 0 / 1 V, 0 / 5 V, 0 / 10 V: impedance is greater than 1M O
• NTC (10 kO at 25 °C)
• Pt1000
Universal| 4| AI1, AI2, AI3, AI4
Universal analog inputs selectable via software between:
• ON/OFF (current: 20 mA)
• 0/1 V, 0/5 V, 0/10 V: impedance is greater than 1M O
• 0/20 mA, 4/20 mA
• NTC (10 kO at 25 °C)
• Pt1000
12 V+ power supply 12 V DC, 120 mA max for 4/20 mA transmitter (total on all outputs)
5 V+ power supply 5 V DC, 100 mA max for 0/5 V transmitter (total on all
outputs)
Digital input| Voltage free contact| 8| DI1, DI2, DI3, DI4, DI5, DI6, DI7, DI8
Current consumption: 10 mA
Analog outputs| 0 / 10 V DC options| 2| AO3, AO4
• Analog outputs optoisolated 0/10 V DC minimum load 1K O (10 mA) for each output
| PWM PPM
0 / 10 V DC
| 2| AO1, AO2
Analog outputs selectable via software between:
• 0/10 V dc minimum load 1K O (10 mA) for each output
• pulsing output, synchronous with the line, at modulation of impulse position (PPM) or modulation of impulse width (PWM)
• pulsing output, at modulation of impulse position (PPM) with range 20 Hz to 1 KHz: open circuit voltage: 6.8 V
Digital output| Relay| 8| Insulation between relay: Functional
Insulation between relays and the extra-low voltage parts: reinforced Total current load limit: 32 A
C1-NO1, C2-NO2
High inrush current (80 A – 20 ms) normally open contact relays 16 A Characteristics of each relay:
• 10 A 250 V AC for resistive loads – 100.000 cycles
• 3.5 A 230 V AC for inductive loads – 230.000 cycles with cos(phi) = 0.5
C5-NO5, C6-NO6
Normally open contact relays 8 A Characteristics of each relay:
• 6 A 250 V AC for resistive loads – 100.000 cycles
• 4 A 250 V AC for inductive loads – 100.000 cycles with cos(phi) = 0.6
C3-NO3-NC3, C4-NO4-NC4, C7-NO7-NC7, C8-NO8-NC8
Changeover contacts relay 8 A Characteristics of each relay:
• 6 A 250 V AC for resistive loads – 100.000 cycles
• 4 A 250 V AC for inductive loads – 100.000 cycles with cos(phi) = 0.6
Connection diagram
TOP BOARD
BOTTOM BOARD
Connection
| Connectors | Type | Dimensions |
|---|
Top Board
Analog output 1-4 connector| 7-way screw plug-in connector type| • pitch 5
mm
• section cable 0.2 – 2.5 mm²
Analog input 1-4 connector| 11-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
Digital input 1-8 connector| 10-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
Analog input 5-8 connector| 5-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
TTL connector (only for 080G0335)| 5-way spring plug-in connector type| • pitch 2.5 mm
• section cable 0.2 – 2.5 mm²
Bottom Board
Power supply connector| 2-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
CAN connector| 4-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
CAN-RJ connector| 6/6 way telephone RJ12 plug type|
RS485 connector| 3-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
Digital output 1-2 connector| 4-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
Digital output 3-4 connector| 6-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
Digital output 5-6 connector| 4-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
Digital output 7-8 connector| 6-way screw plug-in connector type| • pitch 5 mm
• section cable 0.2 – 2.5 mm²
Dimensions
Product part numbers
| Description | Code No. |
|---|---|
| MCX08M2, 230 V, LCD, RS485, TTL, Single Pack | 080G0335 |
**Accessories part numbers**
| Description | Code No. |
|---|---|
| MCX08M CONNECTORS KIT | 080G0180 |
CONTACT
- Via San Giuseppe 38/G
- 31015 Conegliano
- (TV) Italy
- Tel: +39 0438 336611
- Fax: +39 0438 336699
- info.mcx@danfoss.com.
- www.danfoss.com.
- Danfoss A/S
- Climate Solutions
- danfoss.com.
- +45 7488 2222
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