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Mitsubishi Electric EcoMonitorPro EMU2-RD3-F Instruction Manual

Energy measuring unit

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Energy Measuring Unit (EcoMonitorPro)
MODEL
EMU2-RD3-F, EMU2-RD5-F, EMU2-RD7-F (Non communication)
EMU2-RD3-C, EMU2-RD5-C, EMU2-RD7-C (CC-Link communication)
EMU2-RD2-F-4W, EMU2-RD4-F-4W (None communication; exclusive 3 phase 4 wire)
EMU2-RD2-C-4W, EMU2-RD4-C-4W (CC-Link communication; exclusive 3 phase 4 wire)
Instruction manual: Detailed edition
1.
Introduction
Thank you for purchasing Mitsubishi energy measuring unit (EcoMonitorPro).
This unit is designed to measure various parameters of electricity flowing on a power line through the current sensor.
This manual explains the procedures for installing and using the unit. Read carefully the manual, and use the unit correctly. Before installing
the unit, read "Safety Precautions" to handle it correctly.
■ Notation in manual
This manual uses the following signs.
Sign
Improper handling in disregard of the instructions can result in death or serious injury.
Danger
Improper handling in disregard of the instructions can result in personal injury or property damage.
Caution
Instructions to prevent trouble of the unit and to correctly operate the unit
Supplement
Page of related information
■ Confirmation of contents of package
Each unit comes with the following accessories. Check for missing ones. The accessories vary depending on the model.
Item
Main Body
Instruction manual
Detailed edition (CD)
Instruction manual
Simple edition
Connector for CC-Link
Note1
communication
Note 1: Connector for CC-Link communication is bundled in only EMU2-RD*-C or EMU2-RD*-C-4W.
This product should not be used for the purpose of trading or certification of electric energy.
For trading and certification of electric energy, use a watt-hour meter (qualified).
2.
Features
This unit is designed to measure various parameters of electricity flowing on a power line through the dedicated current sensor.
The single unit is capable of measuring the parameters on several transformer systems (differing in voltage and number of phases and
wires).
The unit can be applied to various primary voltage values and primary current values in combination with a potential transformer or a current
transformer.
It can transmit measuring data to a data collecting sequencer through CC-Link communication.
Quantity
EMU2-RD3-F
1
EMU2-RD5-F
EMU2-RD7-F
1
MITSUBISHI
1
1
Meaning
Figure
EMU2-RD3-C
EMU2-RD5-C
EMU2-RD7-C
(1/32)
EMU2-RD2-F-4W
EMU2-RD2-C-4W
EMU2-RD4-F-4W
EMU2-RD4-C-4W

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Summary of Contents for Mitsubishi Electric EcoMonitorPro EMU2-RD3-F

  • Page 1 Energy Measuring Unit (EcoMonitorPro) MODEL EMU2-RD3-F, EMU2-RD5-F, EMU2-RD7-F (Non communication) EMU2-RD3-C, EMU2-RD5-C, EMU2-RD7-C (CC-Link communication) EMU2-RD2-F-4W, EMU2-RD4-F-4W (None communication; exclusive 3 phase 4 wire) EMU2-RD2-C-4W, EMU2-RD4-C-4W (CC-Link communication; exclusive 3 phase 4 wire) Instruction manual: Detailed edition Introduction Thank you for purchasing Mitsubishi energy measuring unit (EcoMonitorPro). This unit is designed to measure various parameters of electricity flowing on a power line through the current sensor.
  • Page 2 Safety Precautions 3.1 Working environment and working conditions Do not use the unit in any of the following places. Doing so may cause malfunction or reduction in service life. ⋅ Place where the ambient temperature exceeds the working temperature range ⋅...
  • Page 3 3.4 Instructions for use This product should not be used for the purpose of trading or certification of electric energy regulated by Measurement Law. This unit has a built-in clock. Set the clock (current date and time) prior to use. The accuracy of the clock is about 1 minute per month. Adjust the time as necessary.
  • Page 4: Table Of Contents

    Contents 6.Part Names and Functions .............................5 7.Installation................................6 8.Wiring Procedures..............................7 8.1 Connection of voltage lines, sensors cable and sensors ..................7 Extension of current sensor cable............................. 9 Fitting of EMU2-CT5 (-4W) ............................... 9 Fitting of EMU-CT50/CT100/CT250............................10 Fitting of EMU-CT400/CT600 ..............................10 8.2 Connection of CC-Link communication line .......................11 8.3 Connection of display unit (example of model EMU2-D65) ................11 9.Setting Method...............................12...
  • Page 5: Part Names And Functions

    Part Names and Functions Example: Model EMU2-RD7-C RUN: MEASURE (A-MEASURE, B-MEASURE): This lamp is on while all circuits of this unit are in The measuring status of each circuit is displayed. Communication module: • On/flashing operation. CC-Link communication function block :Under measurement •...
  • Page 6: Installation

    Supplementation --------------------------------------------------------------------------------------------------------------------------------------------------------------- To each of the modules for the second and following circuits, Display of measuring status of circuit 2 the voltage lines and sensor Display of measuring status of circuit 3 cables of two measuring Display of Alarm status of circuit 2 circuits can be connected.
  • Page 7: Wiring Procedures

    Wiring Procedures • Connect all cables. When wiring, check the phase and wire system of the circuit to be connected, and see the relevant wiring diagram. When connecting a potential transformer or a current transformer, see the transformer instruction manual. •...
  • Page 8 Below given is an example of connection for measurement of 2 transformer systems (differing in voltage and number of phases and wires) by one unit (example of connection of EMU2-RD4-F-4W). Circuit 1: primary voltage 63.5/110V, primary current 800A (EMU2-CT5-4W)-------800/5A current transformer is separately necessary. Circuit 2: primary voltage 63.5/110V, primary current 250 A (EMU-CT250) Circuit 3: primary voltage 254/440V, primary current 600 A (EMU-CT600)----------- potential transformer is separately necessary.
  • Page 9: Extension Of Current Sensor Cable

    Breakers or fuses ブレーカもしくはヒューズ When the unit is used for a circuit of 440 V or more, use a potential transformer without fail. Connect the secondary side of the potential transformer to the terminals P1 to P3. Pass the secondary side (5 A) of the current transformer through EMU2-CT5 (-4W). As the current transformer, a general current transformer for 5 A can be used.
  • Page 10: Fitting Of Emu-Ct50/Ct100/Ct250

    ■ Fitting of EMU-CT50/CT100/CT250 Fit the sensor to the cable of the circuit to be measured. Protective cover 保護カバー 1) Open the moving core as shown right. Slowly lift the moving core locking claws on both sides of the moving core to open and remove them from the stoppers.
  • Page 11: Connection Of Cc-Link Communication Line

    8.2 Connection of CC-Link communication line ○ Draw out the CC-Link communication connector from the unit. ○ Loosen the cable tightening screws on the CC-Link communication connector. Use a thin slotted screwdriver (blade edge thickness: 0.6 mm/overall length: 3.5 mm). ○...
  • Page 12: Setting Method

    Setting Method 9.1 Setting of CC-Link station number and transmission rate When connecting this unit to the CC-Link transmission line, set a unique station number (STATION) for the unit before applying power to the unit, and set the transmission rate (B RATE). A unit provided with the CC-Link communication function communicates mutually with another unit at the transmission rate that has been set by using the station number.
  • Page 13: Setting Of Ratings

    9.2 Setting of ratings For setting, it is necessary to use the optional small display unit (EMU2-D65) or logging display unit (EMU2-D65-M). Order one of these units when purchasing this unit. In case of EMU2-RD3-F/C, EMU2-RD5-F/C, EMU2-RD7-F/C ■ Phase and wiring [Default: 3-phase 3-wire] One of the following systems can be set for each circuit.
  • Page 14: Upper And Lower Limit Settings

    ■ Upper and lower limit settings [Defaults: Upper limit setting = Max. setting Lower limit setting = Min. setting] The upper and lower limits can be set for each circuit as shown below. The upper and lower limits can be set only on the display unit. They cannot be set by CC-Link communication.
  • Page 15 In case of EMU2-RD2-F/C-4W, EMU2-RD4-F/C-4W ■ Phase and wire system Fixed 3-phase 4-wire ■ Primary voltage [Default: 220/380 V] The primary voltage can be selected from the following values for every 2 circuits. (Primary voltage is common for circuit1 and circuit2, or circuit3 and circuit4) Settings 63.5/110V, 110/190V, 120/208V, 220/380V, 240/415V, 254/440V...
  • Page 16 ◆ Power demand upper/lower limit setting Min. upper/lower limit Full-load power (kW) Setting step Max. upper/lower limit setting setting Less than 12 0.000 kW 0.001 kW Full-load power 12 to less than 120 0.00 kW 0.01 kW 120 to less than 1200 0.0 kW 0.1 kW 1200 to less than 12000...
  • Page 17: Operations Of Instrument

    Operations of Instrument 10.1 Measuring functions The measuring parameters are shown in the following table. Measuring item Measuring parameters of each unit type EMU2-RD3-F/C EMU2-RD2-F/C-4W Details EMU2-RD5-F/C EMU2-RD4-F/C-4W EMU2-RD7-F/C ● ● Instantaneous current value Note 1 ● ● Note 1 ●...
  • Page 18: Monitoring Function

    Supplementation ---------------------------------------------------------------------------------------------------------------------------------------------------------------- • Measuring parameters to be displayed on the display unit can be selected. For the details, see the instruction manual for each display unit. • The measuring conditions of following item vary with the phase wire system. Item Phase wire system Measuring condition Total current...
  • Page 19: How To Use The Monitoring Function

    10.3 How to use the monitoring function This unit can monitor the upper and lower limits of measurements of voltage, current demand, power demand and power factor separately. <Monitor setting> ⋅ Upper limit setting : Set the measurement upper limits. For the settings and the setting ranges, see page 11.
  • Page 20: Resolution Of Measuring Data

    10.4 Resolution of measuring data The resolution of measuring data is determined as follows according to the rating settings (phase and wire system, primary voltage and primary current). ■ Voltage and harmonic voltage RMS ■ Current, current demand and harmonic current RMS Rated primary voltage Rated primary voltage Resolution...
  • Page 21: Restrictions On Measuring Data

    Primary voltage setting (V) W, var : 3rd decimal place Wh, varh : 2nd decimal place W, var : 2nd decimal place Wh, varh : 1st decimal place W, var : 1st decimal place Wh, varh : Integer W, var : Integer Wh, varh : x10 W, var...
  • Page 22: Reference

    (when a general potential transformer is kept input in the unit. is directly connected), or other parts of the unit may be defective. Consult Mitsubishi Electric System & Service Co., Ltd. or the local distributor. ○...
  • Page 23: Q&A

    11.2 Q & A ■ General To what degree of overvoltage and overcurrent does the unit withstand? Is it necessary to connect a protective circuit out of the unit? Instantaneous Up to 20 times the rated current and up to twice the rated voltage Instantaneous: Current is applied 9 times for 0.5 sec at intervals of 1 min and once for 5 sec.
  • Page 24: Q&A Relating To Installation

    ■ Q&A relating to installation Can it be installed without the IEC rail? No. Use the IEC rail. What diameter of electric wire can be fitted to the current sensor? The nominal sectional areas of 600 V vinyl-coated conductors having applicable electric wire diameters are shown below (reference values). •...
  • Page 25: Specifications

    Specifications 12.1 Common specifications Item Specification EMU2-RD3-F/C Phase wire Applicable to single-phase 2-wire, single-phase 3-wire and 3-phase 3-wire EMU2-RD5-F/C EMU2-RD7-F/C EMU2-RD2-F/C-4W Applicable to 3-phase 4-wire EMU2-RD4-F/C-4W EMU2-RD3-F/C Voltage circuit (Note 1) 110V, 220V, 440V, 690V, 1100V, 2200V, 3300V, 6600V, 11000V, 13200V, 13800V, 15000V, 16500V, EMU2-RD5-F/C 22000V, 24000V, 33000V, 66000V, 77000V, 110000V EMU2-RD7-F/C...
  • Page 26 Applicable electric wire and Applicable electric wire: 1.25 mm applicable crimp-type terminal Applicable crimp-type terminal: Terminal 7.2 mm or less in diameter for M3.5 (terminal block) (Ex.: R1.25-3.5, bare round type) (26/32)
  • Page 27 Item Specification Terminal tightening torque 0.49 to 0.78 N⋅m Mass EMU2-RD3-F ------------------------------- 0.6kg EMU2-RD2-F-4W ------------------------ 0.5kg EMU2-RD5-F ------------------------------- 0.8kg EMU2-RD4-F-4W ------------------------ 0.7 kg EMU2-RD7-F ------------------------------- 1.0kg EMU2-RD2-C-4W ------------------------ 0.5kg EMU2-RD3-C ------------------------------ 0.6 kg EMU2-RD4-C-4W ------------------------ 0.7 kg EMU2-RD5-C ------------------------------0.8 kg EMU2-RD7-C ------------------------------1.0 kg EMU2-RD2-F -------------- 90 x97x98 External dimensions (W×D×H) in...
  • Page 28: Cc-Link Communication Specifications

    12.2 CC-Link communication specifications Item Specification Number of occupied stations Remote device station occupying one station Maximum number of The following conditions must be met. connected units When the system consists only of this type of units, up to 42 units can be connected. Condition 1: {(1×a) + (2×b) + (3×c) + (4×d)} ≤64 a : Number of units occupying 1 station b : Number of units occupying 2 stations...
  • Page 29: External Dimensions

    External Dimensions Unit: mm. Model name EMU2-RD3-F, EMU2-RD2-F-4W EMU2-RD5-F 123.5 112.5 EMU2-RD4-F-4W EMU2-RD7-F Model name EMU2-RD3-C EMU2-RD2-C-4W EMU2-RD5-C 148.5 137.5 EMU2-RD4-C-4W EMU2-RD7-C (29/32)
  • Page 30 Optional parts ■ Dedicated current sensors ◆EMU-CT50, EMU-CT100, EMU-CT250 ◆EMU-CT400, EMU-CT600 Core cover Protective cover M4 screw Iron core parting face Locking hole Secondary (3×2) terminal M4 screw Secondary short-circuiting switch Tying band Stopper Moving core Terminal Moving core locking claw cover Model EMU-CT50/CT100 31.5...
  • Page 31: Index

    Index Lower limit ................14, 15 Alarm delay time ................. 14 Attention ..................3 MA/MB ...................5 Monitoring function..............18 B RATE..................12 Optional parts................30 Connection of CC-Link..............11 Connection of display unit............11 P0/P1/P2/P3...................5 Contents of package..............1 Part Names and Functions............5 Peripheral Devices..............28 Phase and Wiring..............
  • Page 32: Enquiry

    JL Muara Karang Selatan Blok A/Utara No. 1 kav. NO. 11 P.O. Box Indonesia P.T. SAHABAT INDONESIA +62-(0)21-6621780 5045/Jakarta/11050, Jakarta Indonesia MITSUBISHI ELECTRIC AUTOMATION 2Fl. Dong Seo Game Channel Bldg., 1F 660-11 Deungchon-Dong, Korea +82-2-3668-6567 KOREA CO., LTD. Kanguseo-ku, Seoul, 157-030 Korea...

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