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Programmable controller Type MCX20B

Programmable controller Type MCX20B
6Pages

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Data sheet Programmable controller Type MCX20B Danfoss’ range of universal MCX programmable controllers offers the functionality and reliability you need to get the best out of your heating, ventilation, air-conditioning and refrigeration (HVAC/R) equipment. With the MCX range, Danfoss is widening the concept of programmability and applying it to as many environments as possible 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 opto-insulated serial interface. Furthermore it is available in two models, powered at 110/230 V AC or 24 V AC yy 16 analog and 22 digital inputs yy 6 analog and 20 digital outputs yy Power supply 24 V AC / 20/60 V DC and 110 V / 230 V AC yy Remote access to data through CANbus connection for additional display (LCD available) and keyboard yy Up to two Modbus RS485 opto-insulated serial interface yy Available with graphic LCD display and without display for showing the desired information yy Dimensions 16 DIN modules yy RTC clock for managing weekly time programs and data logging information

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Data sheet General features FEATURES 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. Maximum power consumption: 17 W, 25 VA Insulation between power supply and the extra-low voltage: functional DIN rail mounting complying with EN 60715 Plastic housing 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...

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Data sheet Inputs/outputs Digital inputs Analog outputs Digital output NUM SPECIFICATIONS 6 AI7, AI8, AI9, AI10, AI15, AI16 Inputs selectable via software between: -- NTC temperature probes, default: 10 kΩ at 25 °C -- pressure transducers with 0/5 V output 10 AI1, AI2, AI3, AI4, AI5, AI6, AI11, AI12, AI13, 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...

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Connection diagram Data sheet *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

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Data sheet Connection MCX20B CONNECTORS TOP BOARD Digital input 1 connector Digital output 14-16 connector Digital output 17-20 connector Analog output 5-6 connector Analog input 11-14 connector Analog input 15-16 connector Digital input 2 connector Digital input 3 connector Digital input 4 connector Digital input 5-8 connector Digital input 9-12 connector Digital input 13-16 connector Digital input 17-20 connector Digital input 21-22 connector BOTTOM BOARD Digital output 1-5 connector Digital output 6-8 connector Analog input 1-6 connector Analog input 7-10 connector Power supply connector...

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Data sheet User interface Note: Industrial pack do not include standard kit connectors Danfbss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfbss 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. Danfbss and the Danfoss logotype are trademarks of Danfbss A/S. All rights reserved.

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Programmable controller Type MCX20B 6Pages

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Programmable controller Type MCX20B
6Pages