Danfoss MCX15B2 Electronic Controller

Product Usage Instructions

Installation

1. Ensure proper power supply voltage (24-110-230 V AC / 40-230 V DC).
2. Connect the necessary analog and digital inputs and outputs as per your configuration.
3. Use appropriate communication interfaces like Modbus RS485, CANbus, Ethernet, or USB.

Configuration

1. Use the software to configure the input types (NTC, PT1000, etc.) and communication settings.
2. Set up the analog outputs and define their behavior (0/10 V, PWM, PPM).
3. Ensure proper power connections and check for any short circuits.

Operation

• Power on the device and monitor the display for any error messages.
• Verify the input readings and output responses according to your application requirements.
• Use the communication interfaces for data logging or firmware updates.

GENERAL FEATURES

• MCX15B2/MCX20B2 is an electronic controller that stands at the top of the MCX range, thanks to the large number of its inputs and outputs, the enhanced CPU capabilities, and connectivity features.
• It holds all the typical functionalities of MCX controllers: programmability, connection to the CAN bus local network, up to two Modbus RS-485 serial interfaces with galvanic isolation.
• Furthermore, it is fitted with an ultra-wide range (24/110/230 V AC) power supply in the same product variant, with USB and Ethernet connections for an embedded Web server and IP protocols management.
• It is available in several models, with or without a graphic LCD and with 15 or 20 digital outputs.

  

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, 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 a degree of pollution 2
• Category of resistance to heat and fire: D
• Immunity against voltage surges: category II, category III for versions without display
• Software class and structure: class A

COMPLIANCE
CE mark
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

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, 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.

GENERAL FEATURES AND WARNINGS

INSTALLATION WARNINGS

• Mounting position recommended: vertical
• The installation must be executed according to the local standards andlegislations 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 shock, 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 Installation Guide “MCX hardware network specification” 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 noise
• Avoid touching or nearly touching the electronic components fitted on the board to avoid electrostatic discharges
• The product is not suitable for being exposed directly to the Internet

TECHNICAL SPECIFICATIONS

POWER SUPPLY

• 21 – 265 V AC, 50/60 Hz. Maximum power consumption: 15 W. Insulation between the power supply and the extra-low voltage: reinforced
• 40 – 230 V DC

  

CONNECTION DIAGRAM

TOP BOARD

BOTTOM BOARD

CONNECTIONS

• TOP BOARD
  • Digital input 1 connector
    3 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital output 14-15 connector (MCX20B2)
    6 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital output 16-20 connector (MCX20B2)
    10 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Analog input 11-14 connector (MCX20B2)
    7 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Analog input 15-16 connector
    4 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital input 2 connector
    3 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital input 3 connector
    3 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital input 4 connector
    3 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital input 5-8 connector
    5 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital input 9-13 connector
    6 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital input 14-17 connector
    5 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital input 18-22 connector
    6 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
• BOTTOM BOARD
  • Digital output 1-5 connector
    10 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital output 6-8 connector
    6 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Ethernet connector
    8/8 way RJ45
  • Analog input 1-6 connector
    11 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Analog input 7-10 connector
    6 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Power supply connector
    2 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Digital output 9-13 connector
    10 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • Analog output 1-6 connector
    8 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • RS485-2 connector
    3 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
  • RS485-1 connector
    3 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
  • USB Connector
    USB mini B

DIMENSIONS

Wire lengths

USER INTERFACE

LCD DISPLAY

• Display mode: STN blue transmissive
• back-light: white LED back-light, adjustable via software
• display format: 128×64 dots
• active visible area: 58×29 mm
• contrast: adjustable via software

KEYBOARD

• number of keys: 6The
• Key’s function is set by the application software

Communication Interface

PRODUCT NUMBERS

ABOUT COMPANY

• Via San Giuseppe 38/G
• 31015 Conegliano
• (TV) Italy
• Tel: +39 0438 336611
• Fax: +39 0438 336699
• info.mcx@danfoss.com
• www.danfoss.com

FAQ

• What is the maximum total current load for the digital outputs?
  The maximum total load is 65 A for MCX20B2 and varies from C1-NO1 to C13-NO13, C16-NO16 to C20-NO20.
• How many analog inputs are available for MCX15B2 and MCX20B2?
  MCX15B2 has 15 analog inputs, and MCX20B2 has 20 analog inputs.
• What is the function of DIH1, DIH2, DIH3, and DIH4 inputs?
  These are optoisolated inputs with a nominal current of 2.5 mA @ 265V AC..

Documents / Resources

	Danfoss MCX15B2 Electronic Controller [pdf] Instructions MCX15B2, MCX20B2, MCX15B2 Electronic Controller, MCX15B2, Electronic Controller, Controller
	Danfoss MCX15B2 Electronic Controller [pdf] Installation Guide MCX15B2, MCX20B2, MCX15B2 Electronic Controller, Electronic Controller, Controller

References

• User Manual