Mitsubishi Electric EMU4-FD1-MB User Manual
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Mitsubishi Electric EMU4-FD1-MB User Manual

Energy measuring unit
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Energy Measuring Unit
MODEL
EMU4-FD1-MB
User's Manual (Details)
● Before operating the instrument, you should first read thoroughly this operation manual for
safe operation and optimized performance of the product.
Deliver this user's manual to the end user.

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Summary of Contents for Mitsubishi Electric EMU4-FD1-MB

  • Page 1 Energy Measuring Unit MODEL EMU4-FD1-MB User’s Manual (Details) ● Before operating the instrument, you should first read thoroughly this operation manual for safe operation and optimized performance of the product. Deliver this user’s manual to the end user.

  • Page 2: Safety Precautions

    Safety precautions Thank you for purchasing the Energy Measuring Unit. ･ This manual describes setup and usage for the Energy Measuring Unit. Before using the product, please read this manual carefully to ensure correct use. Especially, in the case of where this unit is to be installed, please read “1. Precautions for Use” to ensure correct use.

  • Page 3: Table Of Contents

    2. Disclaimer .................................... 5 3. Name and function of each part ............................5 4. Attaching and removing the unit ............................. 7 5. Procedure for wiring ................................ 10 Wiring for EMU4-FD1-MB ..................................10 System configuration example of MODBUS RTU communication ....................13 ®...

  • Page 4: Precautions For Use

    1. Precautions for Use Precautions for Operating Environment and Conditions This unit is premised on being used in pollution degree 2* environment. When used in higher pollution degree, protect this unit ･ from pollution on another device side to be incorporated. Over voltage category of measuring circuit in this unit is CAT Ⅲ*, and that of auxiliary power circuit (MA, MB) is CAT Ⅲ*.

  • Page 5: Precautions For Use

    <Connection of frame GND terminal> ･ Do not exceed the specified voltage when doing an insulation resistance test and a commercial frequency withstand voltage test. Do not connect to frame GND terminal during the insulation resistance test and pressure test. ･...

  • Page 6: Disclaimer

    2. Disclaimer It is prohibited to reprint or copy all contents of this document in any form without our permission. ‧ The contents of this document will be updated to follow revisions to software and hardware, however under unavoidable ‧ circumstances it may not be synchronized.
  • Page 7 ･ Function of operation buttons Control buttons have many functions as below. (How to change mode page 15.) DISP button +/PHASE button -/RESET button SET button Meaning of symbol: ○ (Press), □ (Press more than 1 sec), ◎ (Press more than 2 sec), ― (Press both at the same time) Operation Name of Button Function...

  • Page 8: Attaching And Removing The Unit

    4. Attaching and removing the unit Caution Any person who is involved in the installation and the wiring of this unit should be fully competent to do this work. There are two installation methods, surface mounting and panel mounting ･ Surface mounting (1) How to attach to the IEC rail Applicable IEC rail Attaching...
  • Page 9 ･ Plate mounting (1) Screw mounting (Measuring unit) Dimensions of hole panel(76×44.5) Attaching Attach the plate by using 2 screws. Outline of the measuring unit Tightening torque: 0.63N・m Mounting screws Plate *Panel cut dimensions are made larger than the product considering cross recessed head screw with captive washer Recommended tolerance in panel cut.
  • Page 10 (3) Screw mounting (When using the measuring unit and the attachment for panel mounting) Attaching Dimensions of hole panel（76×44.5） Screws for panel Attach the plate by using 2 screws, then install the mounting Outline of the measuring unit attachment attachment on the plate. Tightening torque: 0.63N・m Mounting screws Attachment for panel...

  • Page 11: Procedure For Wiring

    5. Procedure for wiring Wiring for EMU4-FD1-MB Rating voltage for every phase wire system Phase wire type Type Rating voltage Figure 3-phase 4-wire type STAR max AC277V(L-N)/480V(L-L) Figure 1 DELTA max AC220V(L-L) Figure 2 3-phase 3-wire type STAR max AC440V(L-L)
  • Page 12 *2,3,4（refer to next page） *1,4（refer to next page） (See*3) (See*4) *2,3,4（refer to next page） *1,4（refer to next page） (See*2) (See*4) (See*3) *1,4（refer to next page） * Fuse is required to conform to UL. Note 1: For low voltage circuits, do not connect to grounding the secondary side of VT and CT.
  • Page 13 Do not connect to FG terminal during the insulation resistance test and pressure test. ・ Do not connect together more than one EMU4-FD1-MB on the secondary side of a current transformer. ・ Do not connect together other units and EMU4-FD1-MB on the secondary side of a current transformer.

  • Page 14: System Configuration Example Of Modbus ® Rtu Communication

    ・When you are connected to the GOT on transmission line one, please get terminal resistance of 110 Ω in the GOT side. (Please refer to Page14, "・Wiring for GOT（GOT1000） and EMU4-FD1-MB " for the details.) 3. Connect to ground by using thick wires to decrease impedance.
  • Page 15 ® MODBUS interface unit (details).“ ・Wiring for GOT(GOT1000) and EMU4-FD1-MB Note) Please set the terminal resistance of the GOT(GOT1000) "110 Ω". Please of the setting method refer to " GOT1000 Series Connection Manual (Microcomputer, MODBUS Products, Peripherals) for GT Works3".

  • Page 16: Operating Mode

    6. Operating mode This unit has the operating modes. Switch these modes according to the purposes. The operating mode is displayed immediately after the auxiliary power loading. Mode Function Reference Operating Display measured value digitally. It can display the condition of contact input and present time (*1) page 49 mode other than the present value of the measured values.

  • Page 17: Setting Method

    7. Setting method Procedures for setting Set items such as phase wire system, primary voltage, and primary current in the setting mode to measure and monitor. Under normal use, it shall be sufficient to set the setting menu 1 (Basic setting) only. For details, refer to after the following page.
  • Page 18 Procedures for setting ･ Basic operations in setting Function Operation Supplement Press Press for more than one second to + / PHASE Choose setting value fast-forward - / RESET After setting value is confirmed, transition Press confirm setting value to next item. Go back the previous setting item Press DISP...

  • Page 19: Setting Menu 1: Phase Wire System, Primary Voltage, Primary Current, Demand Time, Etc

    Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc. In this menu, set phase wire system, primary voltage, primary current, demand time, etc. In operating mode, press both - / RESET at the same time for more than two seconds to transition to setting mode and enable the following operations.
  • Page 20 Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc. Set the primary voltage of combined VT 690V 1100V 2200V 3300V 6600V (4) Primary voltage Caution: (with VT) If there is no values above you want to set to, choose “SP” to enable the special primary voltage and the special secondary voltage.
  • Page 21 Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc. Set the primary current of combined CT. Supplement: “CT” means Current Transformer. 250A 1500A 300A 1600A 400A 2000A 7.5A 500A 2500A 600A 3000A (7) Primary current 750A 4000A 100A 800A...
  • Page 22 Setting menu 1: Phase wire system, primary voltage, primary current, demand time, etc. Set the current demand time. On setting display, “s” means “second” and “M” means “minute”. (10) Current demand time DISP Set the electric power demand time. On setting display, “s” means “second” and “M” means “minute”. (11) Electric power demand time DISP...

  • Page 23: Setting Menu 2: Modbus ® Rtu Communication

    Setting menu 2: MODBUS ® RTU communication In this menu, set address, baud rate, parity and stop bit for MODBUS ® RTU communication. - / RESET In operating mode, press both at the same time for more than two seconds to transition to setting mode and enable the following operations.
  • Page 24 Setting menu 3: Contact / pulse input/output, equivalent CO , harmonic, operating time, etc. In this menu, set contact / pulse input/output, equivalent CO , harmonic, operating time, etc. - / RESET In operating mode, press both at the same time for more than two seconds to transition to setting mode and enable the following operations.
  • Page 25 Setting menu 3: Contact / pulse input/output, equivalent CO , harmonic, operating time, etc. Set the unit amount per pulse of pulse output. Selectable unit amount is as follows depending on the full load power: α： 1 Single-phase, 2-wire α x (VT primary voltage) x (CT primary current) Single-phase, 3-wire Full load power [kW] = Three-phase, 3-wire...

  • Page 26: Harmonic, Operating Time, Etc

    Setting menu 3: Contact / pulse input/output, equivalent CO , harmonic, operating time, etc. (8) Harmonic voltage Set whether the harmonic voltage is indicated or not. indication (Do not indicate) (Indicate) DISP (9) Operating time Set whether the operating time is indicated or not. indication (Operating time is integrated while this setting is “oFF”.) (Indicate)

  • Page 27: Setting Menu 4: Upper / Lower Limit Alarm Setting, Alarm Delay Time ,Alarm Reset, Etc

    Setting menu 4: Upper / lower limit alarm setting, alarm delay time, alarm reset, etc. In this menu, set the upper / lower alarm, alarm delay time, reset method of alarm clear, etc. In operating mode, press both - / RESET at the same time for more than two seconds to transition to setting mode and enable the following operations.
  • Page 28 Setting menu 4: Upper / lower limit alarm setting, alarm delay time ,alarm reset, etc. Operations in alarm value setting display are as follows: Setting of “Upper / lower limit alarm value” + / PHASE - / RESET ･ Press to choose the value at flashing digit.

  • Page 29: Setting Menu 5: Setting Related To Logging Unit

    Setting menu 5: Setting related to logging unit In this menu, set the logging unit ID or logging data clear. In operating mode, press both at the same time for more than two seconds to transition to setting - / RESET mode and enable the following operations.

  • Page 30: Setting Menu 5: Modbus ® Tcp Communication

    Setting menu 5: MODBUS ® TCP communication In this menu, IP address, subnet mask, and default gateway for MODBUS ® TCP communication. - / RESET In operating mode, press both at the same time for more than two seconds to transition to setting mode and enable the following operations.

  • Page 31: Confirmation Menu 1 - 5: Confirmation Of Setting Values In Setting Menu 1 - 5

    Setting menu 5: MODBUS ® TCP communication Set the Default gateway address. 0.0.0.0 127.0.0.1 255.255.255.255 (4)Default gateway address for MODBUS ® If invalid default gateway address is set, error code E05 is appears. If that happens, press and set again after review the default gateway address.

  • Page 32: Initialization Of Related Items By Change Of Setting

    Initialization of related items by change of setting Changed setting value Menu 1 Menu 2 Menu 3 Menu 4 Menu 5 Setting item Phase wire system Use of VT ● Direct voltage ● Primary voltage (Special primary voltage) ● Secondary voltage ●...

  • Page 33: Clock Setting And Logging Data Clear

    Clock setting and logging data clear When connecting logging unit, you can set the clock of it. On the date indication in operating mode, press both - / RESET at the same time for more than two + / PHASE seconds to transition to clock setting and enable the following operations.

  • Page 34: Change Of Date Format

    Change of date format In date format setting, you can choose from “YYYY.MM.DD”, “MM.DD.YYYY” or “DD.MM.YYYY” format. On the date indication in operating mode, press + / PHASE for more than two seconds to transition to date format setting and enable the following operations.

  • Page 35: How To Use Test Mode

    How to use test mode Test mode has the functions which you can utilize in such as the launch of equipment. The functions in test mode are as follows: Test menu Details Indicate phase angle of current and voltage, electric power, voltage and current of 1.

  • Page 36: Test Menu 1: Discrimination Support Function For Improper Connection

    Test menu 1: Discrimination support function for improper connection In configuration mode, choose menu “6” to enter test mode. (You cannot enter from setting mode.) In test mode, the following operations can be possible. Choose the test menu 1. Test menu (As shown in the left figure) Indicate the phase angle, electric power, voltage and current.
  • Page 37 Test menu 1: Discrimination support function for improper connection Indicate the phase angle, electric power, voltage and current. <Example for three-phase 3-wire> + / PHASE + / PHASE Phase angle Phase angle (Voltage, phase 12) (Voltage, phase 23) + / PHASE + / PHASE Phase angle (Current, phase 3) Phase angle (Current, phase 1）...
  • Page 38 Test menu 1: Discrimination support function for improper connection ■Display example of discrimination support function for improper connection Display example (Connection example for three-phase 3-wire) Indicates improper connection At the average current (V ＝V 、Ｉ ＝Ｉ Power Electric power factor Phase angle display Voltage display Current display...
  • Page 39 Display example (Connection example for single-phase 3-wire) 　Indicates improper connection At the average current (V Connection ＝V 、Ｉ ＝Ｉ Power Electric factor Phase angle display power Voltage display Current display Voltage Current Connecting diagram (Input) display CT(sid CT(sid ∠V ∠V ∠I ∠I e "1")
  • Page 40 ■Display example of discrimination support function for improper connection. Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I...
  • Page 41 Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I ∠I Connection between P2 and P0 Forward are reserved.
  • Page 42 Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I ∠I CT side "2" and "3" are swapped. ＝Positive value Forward ＝Positive value...
  • Page 43 Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I ∠I Connection between P2 and P0 are Forward reserved.
  • Page 44 Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I ∠I Connection between P2 and P0 Forward are reserved.
  • Page 45 Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I ∠I Connection between P2 and P0 Forward are reserved.
  • Page 46 Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I ∠I Connection between P2 and P0 Forward are reserved.
  • Page 47 Display example (connection example for three-phase 4-wire) Indicates improper connection At the average current (V1N＝V2N＝V3N，I1＝I2＝I3) Power Phase angle display Electric power Voltage Current factor Wiring display display display (input) ∠V ∠V ∠V ∠I ∠I ∠I Connection between P2 and P0 Forward are reserved.

  • Page 48: Test Menu 2: Communication Test

    Test menu 2: Communication test In test mode, the following operations can be possible. Choose the test menu 2. Test menu (As shown in the left figure) Test the communication. (You can monitor non-zero values without voltage or current input.) ･...

  • Page 49: Test Menu 3: Pulse Output Test

    Test menu 3: Pulse output test In test mode, the following operations can be possible. Test menu Choose the test menu 3. (As shown in the left figure) (3) Pulse output test Test the pulse output. (Input is unnecessary.) Press to output 1pulse.

  • Page 50: Operation

    8. Operation Operation procedure in operating mode This unit indicates the measured value of each item in operating mode. (For the measured items which can be indicated, page 57 ) Operation procedure to change the measured item indicated is as follows: Operation Details Indicated item is changed by every operation in following order:...
  • Page 51 Measuring item Display example unit Note ・ Unit varies depending on the Reactive energy kvarh setting value P.52. (consumption Mvarh lag) ・ Unit varies depending on the Electric energy setting value P.52. (regeneration) Periodic electric energy is the Periodic electric electric energy while...
  • Page 52 Operation procedure in operating mode ･ Indication of harmonic This unit can indicate the RMS value of harmonic, distortion rate and content rate. To indicate them, the indication setting of harmonic is needed in advance. (For indication setting of harmonic, refer to p.24,25.) - Measured element Harmonic current Harmonic voltage...

  • Page 53: Measured Item Indication In Operating Mode

    Measured item indication in operating mode ･ Indication of electric energy, reactive energy and periodic energy - Indication format The indication format of electric energy, reactive energy and periodic energy is as follows depending on the full load power: α： 1 Single-phase, 2-wire α...
  • Page 54 ･ Indication of harmonic current and harmonic voltage - Indication format To indicate harmonic current and harmonic voltage, the indication setting of them is needed in advance. The indication format of them is as follows depending on the full load power: Indication format Measured element Digital indication...

  • Page 55: How To Use Upper/Lower Limit Alarm Function

    How to use upper/lower limit alarm function This device can set the upper/lower limit alarm value for each measured value individually. <Monitoring items> Upper limit alarm items Current demand, phase N current demand, Voltage, Electric power demand, Power factor, Pulse count Lower limit alarm items Current demand, Voltage, Electric power demand, Power factor, <Alarm setting>...

  • Page 56: Operations Of Alarm Reset

    < Examples of alarm occurring (except for the upper limit of pulse count) > (1) When the alarm reset method is “Auto-reset (Auto)”. Measured value Alarm delay time Alarm delay time Alarm delay time Alarm delay time Upper limit alarm value Lower limit alarm value Time First measurement...

  • Page 57: Preset And All Data Reset

    Preset and all data reset You can reset all the integrated measured values or some of them to zero. (such as electric energy, operating time, etc.) ･ The integrated measured values you can reset to zero are as follows: Electric energy (consumption, regeneration), Reactive energy, Periodic energy, Pulse count, Equivalent CO , Operation time - Preset (Data reset of selected value) ・In each integrated value display of operating mode, press both...

  • Page 58: Device Operation

    The table below shows whether indication and output are performed or not for each measured item. ● ･･･ Data which are indicated and output - ･･･ Data which are not indicated or output Measured item EMU4-FD1-MB Details 1P2W 1P3W 3P3W...
  • Page 59 Supplement --------------------------------------------------------------------------------------------------- The table below shows how to calculate the value. average Item Phase-wire system Calculating formula Single-phase 2-wire RMS current value (Average) = phase 1 current RMS current value Single-phase 2-wire RMS current value (Average) = (phase 1 current + phase 3 current) / 2 (Average) Three-phase 3-wire Three-phase 4-wire...

  • Page 60: Restrictions Of Measured Data

    Restrictions of measured data F/W version is displayed in five seconds after the power loading to this device. Measurement and communication do not performed in a few seconds after the configuration or the change of the rating to it. Behaviors during operation are as follows: Behaviors of this device Measured item Display part indication...

  • Page 61: Reference

    10. Reference This chapter explains the ways of dealing when you think the unit is in failure, Q&A, etc. In case you think the unit is in failure If an abnormal sound, bad-smelling smoke, fever break out from this unit, switch it off promptly and don’t use it. If you think the unit is in failure, check the following before sending for repair.

  • Page 62: After-Sales Service

    After-sales service If you have any questions or the product is broken down, contact our sales representative near you. (For details, refer to the end of this manual.) ･ Gratis warranty is effective until the earlier of 1 year after the date of your purchase or 18 months after manufacturing. ･...
  • Page 63 ･ Q&A about specifications What does “Allowable tolerance” mean? In terms of the amount of electricity, it means a range of tolerances in reading values. For example, when the reading value is “10 kWh,” a tolerance is ±0.05 kWh. In terms of measured elements other than the amount of electricity, it means a tolerance to the full scale (refer to page 65).

  • Page 64: Requirement For The Compliance With Emc Directives

    This section compiles the precautions for the compliance of the system incorporating the energy measuring unit (target model: EMU4-FD1-MB) with the EMC Directives. The following description is based on the requirement of the regulations and the standards we understand, but we do not guarantee to comply with the directives above for the whole system built in accordance with this description.

  • Page 65: Specifications

    12. Specifications Common specifications Item Specifications Model EMU4-FD1-MB Single-phase 2-wire / Single-phase 3-wire / Three-phase 3-wire / Three-phase 4-wire(Change of Phase-wire system setting) Voltage Single-phase 2-wire / (DELTA) AC110V,220V circuit Three-phase 3-wire (STAR) AC110V,220V,440V(*1) Single-phase 3-wire AC110V (b/w 1- and 2-phase, 2- and 3-phase), AC220V (b/w 1- and 3-phase)
  • Page 66 Item Specifications Standard EMC: EN-61326-1: 2013 UL: UL61010-1 LVD: EN-61010-1: 2010 Operating temperature -5 - +55°C (Daily average temperature is 35°C or lower) Operating humidity 30 - 85%RH (No condensation) Usage environment Storage temperature -10 - +60°C Operating altitude 2000m or below b/w all terminals (except for communication circuit and frame GND terminal) and casing: 2000V AC, 1min Commercial frequency withstand voltage...

  • Page 67: Specifications Of Modbus ® Rtu Communication

    Specifications of MODBUS ® RTU communication Item Specifications Communication method RS-485 2wires half duplex MODBUS RTU mode Protocol Synchronization method Asynchronous Transmission wiring type Multi-point bus (either directly on the trunk cable, forming a daisy-chain) Baud rate 2400, 4800, 9600, 19200, 38400bps (default: 19200bps) Data bit 8bit...

  • Page 68: Option Devices

    13. Option devices (1) Part for installation to panel - Attachment for installation to panel EMU4-PAT Dimensions (2)Option unit - Logging unit: EMU4-LM Dimensions (67/71)
  • Page 69 - CC-Link communication unit: EMU4-CM-C Dimensions - MODBUS ® TCP communication unit: EMU4-CM-MT Dimensions (68/71)
  • Page 70 - CC-Link IE Field Network Basic Communication unit: EMU4-CM-CIFB Dimensions For specifications, please refer to each manual. (69/71)

  • Page 71: External Dimensions

    14. External dimensions Unit: mm ･ EMU4-FD1-MB ･ When installing the attachment (70/71)

  • Page 72: Index

    15. Index All data reset ................56 Alarm output test................48 Operating mode ................15 Attaching and removing the unit ............ 7 Operation procedure ..............49 After-sales service ............... 61 Option devices ................67 Clock setting ................32 Precautions for use ............... 4 Communication test ..............
  • Page 73 Belgium Koning & Hartman B.V. Woluwelaan 31, BE-1800 Vilvoorde, Belgium +32 (0)2 / 2570240 Brazil Mitsubishi Electric Do Brasil Comercio E Servicos Ltda. Av. Adelino Cardana, 293 -21 and. - Bethaville, 06401-147, Barueri/SP - Brasil +55-11-4689-3000 Cambodia DHINIMEX CO.,LTD #245, St. Tep Phan, Phnom Penh, Cambodia...

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