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Licht MFC-300/I-IAC Technical Manual

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Current Indicator/Transducer
models MFC-300/I-IAC and I-IDC
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Licht

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Summary of Contents for Licht MFC-300/I-IAC

  • Page 1 Current Indicator/Transducer models MFC-300/I-IAC and I-IDC Technical Manual Licht...

  • Page 2: Table Of Contents

    Contents Introduction Front panel indication Configuration Parameter reset Programmable parameters General parameters Current outputs (option) MODBUS protocol DNP3 protocol (option) Language Specifications Housing diagrams Connection diagrams MODBUS registers Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...

  • Page 3: Introduction

    1 Introduction The MFC-300/I-IAC and I-IDC are precise, highly reliable and versatile microcontrolled devices designed to read, display and retransmit AC or DC current values. They feature one isolated RS-485 port, which can be used for communication using the MODBUS or DNP3 protocols.

  • Page 4: Front Panel Indication

    2 Front panel indication During operation, the MFC-300/I-IAC and MFC-300/I-IDC alternates between each in- put’s current indication. The presented value is equal to the measured current multiplied by the Sampling Factor parameter. If more than 2 inputs are used, a timer automatically changes the channels on display.

  • Page 5: Configuration

    3 Configuration Parameterization The MFC-300/I-IAC and MFC-300/I-IDC feature 4 keys to access their functions. The procedure to configure any parameter is as follows: 1. Press the P key to enter the parameters menu. 2. Enter the currently configured 4 letter password one letter at a time, using the keys to select each letter and P to advance between letters.

  • Page 6: Programmable Parameters

    4 Programmable parameters The MFC-300/I-IAC and MFC-300/I-IDC were developed to provide the user with the greatest possible flexiblity, such that all supervision and configuration can be executed on-site or remotely through the existing communication channels. We define all user-configurable parameters below.

  • Page 7: Current Outputs (Option)

    8N1: 8 data bits, no parity, 1 stop bit. 8E1: 8 data bits, even parity, 1 stop bit. 8O1: 8 data bits, odd parity, 1 stop bit. 8N2: 8 data bits, no parity, 2 stop bits. Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...

  • Page 8: Dnp3 Protocol (Option)

    Licht http://www.licht-labs.com info@licht-labs.com Parameter: Address Options: 1 to 247. Description: MODBUS address for the MFC-300/I-IAC or MFC-300/I-IDC. 4.4 DNP3 protocol (option) Parameter: Baud Rate Options: 9600, 19200, 38400, 57600, 115200 bps. Description: baud rate for the RS-485 link. Parameter: Format Options: 8N1, 8E1, 8O1, 8N2.

  • Page 9: Language

    4.5 Language Parameter: Language Options: Portuguese (PT_BR), English (EN_US). Description: Language of the messages and menus displayed on the MFC-300’s front panel. Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...

  • Page 10: A Specifications

    2 lines with 16 characters each (5 mm). Displays LCD with backlight or VFD. 10 A @ 250 Vac, 0.5 A @ 125 Vdc Relays Galvanic Isolation: 3.0 kV, 60 Hz, 1 min. Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...

  • Page 11: B Housing Diagrams

    Licht http://www.licht-labs.com info@licht-labs.com B Housing diagrams Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...
  • Page 12 Licht http://www.licht-labs.com info@licht-labs.com Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...

  • Page 13: C Connection Diagrams

    Licht http://www.licht-labs.com info@licht-labs.com C Connection diagrams Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...
  • Page 14 RS-485 pairs must be terminated at both ends by 120 Ω resistors. Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...
  • Page 15 RS-485 devices must be connected in a bus topology. No other network topology (tree, star, ring, etc.) is acceptable. j. Dry contact inputs (if applicable) must free of potentials. Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...

  • Page 16: Dmodbus Registers

    Current Loop - Output Scale 2: 0-10 mA 3: 0-20 mA 4: 4-20 mA Current Loop - Full Scale 0.01 to 10.00 A 501-503 Measured Current in the [1-3] channel 0.000 to 10.000 A 1000 Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...
  • Page 17 Licht http://www.licht-labs.com info@licht-labs.com Rev. A0 (30–05–12) MFC-300/I-IAC and I-IDC Technical Manual...

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Mfc-300/i-idc

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