Danfoss MCX20B Instruction Sheet page 2

Instruction sheet
Electronic controller
MCX20B
AN21658642997601-000701
3106000430
www.danfoss.com/mcx
Via San Giuseppe 38/G
31015 Conegliano
(TV) Italy
Tel: +39 0438 336611
Fax: +39 0438 336699
www.danfoss.com
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
AN21658642997601-000701 / 520H9953 - MCX20B instruction sheet - P.N. 3106000430 - 15-310600043-D
© Danfoss A/S (RAC-DCS-IMCGP/vt), 2020.02
CONNECTION DIAGRAM
TOP BOARD
*NOTE: connection has to be made on the first and last local network units, make the connection as close as possible to the connector
**NOTE: optoinsulated analog outputs voltages are referenced to contact N1
Instruction sheet
Electronic controller
MCX20B
AN21658642997601-000701
3106000430
www.danfoss.com/mcx
GENERAL FEATURES
MCX20B is fitted with or without graphic LCD display. It is an electronic controller that stands on the top of the
MCX range, thanks to the large number of its inputs and outputs. It holds all the typical functionalities of MCX
controllers: programmability, connection to the CANbus local network and up to two Modbus RS485 serial
communication interfaces.
Furthermore it is available in two models, powered at 110/230 V AC or 24 V AC.
ANALOG INPUTS
NTC, 0/1 V, 0/5 V, selectable via software
Universal NTC, Pt1000, 0/1 V, 0/5 V, 0/10 V, ON/OFF, 0/20 mA, 4/20 mA, selectable via software
Total number
DIGITAL INPUTS
24 V optoinsulated
230 V AC optoinsulated
Total number
ANALOG OUTPUTS
0/10 V DC optoinsulated
Total number
DIGITAL OUTPUTS
SPST relay 16 A (normally open contacts)
SPDT relay 16 A (changeover contacts)
SPST relay 8 A (normally open contacts)
SPDT relay 8 A (changeover contacts)
Total number
OTHERS
Power supply 24 V AC / 20/60 V DC
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
Dimensions (DIN modules)
Mounting
TECHNICAL SPECIFICATIONS
POWER SUPPLY
- 85 – 265 V AC, 50/60 Hz. Maximum power consumption: 31 VA. Insulation between power supply and the extra-low voltage: reinforced
- 20 – 60 V DC or 24 V AC ± 15%, 50/60 Hz SELV. Maximum power consumption: 17 W, 25 VA. Insulation between power supply and the extra-low voltage: functional
I/O TYPE NUMBER SPECIFICATIONS
Relay 20 Concerning the insulation distance there are three groups of relays:
Digital
outputs - group 1: relays 1 to 8
- group 2: relays 9 to 13
- group 3: relays 14 to 20
Insulation between relays of the same group: functional
Insulation between relays of different groups: reinforced
Insulation between relays and the extra-low voltage parts: reinforced
Total current load limit: 123 A
C1-NO1 to C9-NO9, C17-NO17 to C20-NO20
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
UL: 240 V AC - 4 A resistive - 3.6 FLA - 21.6 LRA - 346 VA pilot duty 30.000 cycles
C10-NO10-NC10 to C13-NO13-NC13
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
UL: 240 V AC - 4 A resistive - 3.6 FLA - 21.6 LRA - 346 VA pilot duty 30.000 cycles
C15-NO15 to C16-NO16
High inrush current (80 A - 20 ms) normally open contact relays 16 A:
- characteristics of each relay:
7 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
UL: 240 V AC - 6 A resistive - 4.9 FLA - 29.4 LRA - 470 VA pilot duty 30.000 cycles
C14-NO14-NC14
High inrush current (80 A - 20 ms) changeover contacts relay 16 A:
- characteristics of each relay:
7 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
UL: 240 V AC - 6 A resistive - 4.9 FLA - 29.4 LRA - 470 VA pilot duty 30.000 cycles
Using of device in case of Tamb = 70 °C has to be according to following requirements:
- maximum load admitted for 8 A relay: 4 A 250 V AC
- maximum load admitted for 16 A relay: 5 A 250 V AC
BOTTOM BOARD
NTC, Pt1000, ON/OFF,
0/1 V, 0/5 V, 0/10 V,
0/20 mA, 4/20 mA
DIMENSIONS
280
MCX20B
6
10
16
22
4
22
6
6
2
1
13
4
20
•
•
•
•
•
•
•
•
16
DIN rail
I/O
Digital
inputs
Analog
outputs
Analog
inputs
NTC, Pt1000, ON/OFF, NTC, Pt1000, ON/OFF,
0/1 V, 0/5 V, 0/10 V, 0/1 V, 0/5 V, 0/10 V,
0/20 mA, 4/20 mA 0/20 mA, 4/20 mA
24 V AC
LCD display No display
63 60
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 degree of pollution 2
- Category of resistance to heat and fire: D
- Immunity against voltage surges: category II
- Software class and structure: class A
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
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, specially 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 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 to 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 inputs 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
DISPOSAL INSTRUCTION
- Equipment containing electrical components may not be disposed together with domestic waste. It
must be separately collected with electrical and electronic waste according to local and valid legislation.
TYPE NUMBER SPECIFICATIONS
24 V optoinsulated 22
DI1 to DI22
Inputs optoinsulated, 24 V AC 50/60 Hz or 24 V DC
Rated current: 5 mA
230 V AC 4
DIH1 to DIH4
optoinsulated Inputs optoinsulated, 230 V AC 50/60 Hz. Basic insulation
Rated current: 2 mA at 230 V AC; 1 mA at 110 V AC
- NOTE: when the 230 V AC DH1 input is used, the corresponding 24 V DI1 input is not available anymore;
the same for the couple of inputs DIH2 and DI2, DIH3 and DI3, DIH4 and DI4
0/10 V 6
AO1, AO2, AO3, AO4, AO5, AO6
Analog outputs optoinsulated 0/10 V DC minimum load 1 kΩ (10 mA) for each output: – 40 mA Max totally
on 6 outputs
External power supply 24 V AC / V DC
NTC, 6
AI7 to AI10, AI15, AI16
0/1 V, Inputs selectable via software between:
0/5 V
- NTC temperature probes, default: 10 kΩ at 25 °C
- pressure transducers with 0/5 V output
- 0/5V type: impedance is 18 kΩ
Universal 10
AI1 to AI6, AI11 to AI14
Universal analog inputs selectable via software between:
- ON/OFF (current: 20 mA)
- 0/1 V, 0/5 V, 0/10 V
- 0/20 mA, 4/20 mA
- NTC (10 kΩ at 25 °C)
- Pt1000
12 V+ power supply 12 V DC, 400 mA max for 4/20 mA transmitter (total on all outputs)
5 V+ power supply 5 V DC, 410 mA max for 0/5 V transmitter (total on all outputs)
0/5V type: impedance is 18 kΩ
0/10V type: impedance is 2 kΩ
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 14-16 connector
7 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
- Digital output 17-20 connector
8 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
Power
- Analog output 5-6 connector
4 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
- Analog input 11-14 connector
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 9-12 connector
5 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
- Digital input 13-16 connector
5 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
- Digital input 17-20 connector
5 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
- Digital input 21-22 connector
4 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
- 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 9-12 connector
11 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
- Digital output 13 connector
3 way screw plug-in connector type pitch 5 mm: section cable 0.2-2.5 mm²
- Analog output 1-4 connector
6 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 plug type
USER INTERFACE
DISPLAY LCD
- display mode: STN blue transmissive
- backlight: white LED backlight adjustable via software
- display format: 128x64 dots
- active visible area : 58x29 mm
- contrast: adjustable via software
KEYBOARD
- number of keys: 6
- keys function is settled by the application software
DISPLAY SETTINGS ADJUSTMENT
- Setting of the LCD display like contrast and brightness might need to be adjusted due to external ambient factors.
Press and release simultaneously the Enter and X key after power ON to access the BIOS menu and select the
DISPLAY menu. Use UP and DONWN arrow keys to adjust the contrast or the brightness of the display at the
desired level.
PRODUCT PART NUMBERS
CODE DESCRIPTION
080G0057 MCX20B, 24V, LCD, 2XRS485, RTC, Single Pack
080G0139 MCX20B, 230V, LCD, RS485, RTC, Industrial Pack (12 pcs)
080G0142 MCX20B, 24V, RTC, Industrial Pack (12 pcs)