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Mitsubishi Electric EcoMonitorPro EMU2-RD2-C-4W, Instruction Manual

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Mitsubishi Electric EcoMonitorPro EMU2-RD2-C-4W Instruction Manual Download Page 1

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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 Meaning 

 Danger 

Improper handling in disregard of the instructions can result in death or serious injury. 

 Caution 

Improper handling in disregard of the instructions can result in personal injury or property damage. 

 Supplement  Instructions to prevent trouble of the unit and to correctly operate the unit 

 

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 Quantity 

Figure 

Main Body 

1 

 

EMU2-RD3-F 

 

 

EMU2-RD5-F

 

 

 

EMU2-RD7-F 

 

EMU2-RD3-C 

 

 

EMU2-RD5-C 

 

 

EMU2-RD7-C 

 

EMU2-RD2-F-4W 

 

 

EMU2-RD4-F-4W 

 

EMU2-RD2-C-4W 

 

 

EMU2-RD

4

-C-4W

 

Instruction manual 

Detailed edition (CD) 

1 

 

Instruction manual 

Simple edition 

1 

 

MITSUBISHI 

 

Connector for CC-Link 
communication 

Note1

 

1 

 

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 

 

z

 This unit is designed to measure various parameters of electricity flowing on a power line through the dedicated current sensor. 

z

 The single unit is capable of measuring the parameters on several transformer systems (differing in voltage and number of phases and 

wires). 

z

 The unit can be applied to various primary voltage values and primary current values in combination with a potential transformer or a current 

transformer. 

z

 It can transmit measuring data to a data collecting sequencer through CC-Link communication. 

Summary of Contents for EcoMonitorPro EMU2-RD2-C-4W

Page 1: ...ctly operate the unit 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 Quantity Figure Main Body 1 EMU2 RD3 F EMU2 RD5 F EMU2 RD7 F EMU2 RD3 C EMU2 RD5 C EMU2 RD7 C EMU2 RD2 F 4W EMU2 RD4 F 4W EMU2 RD2 C 4W EMU2 RD4 C 4W Instruction manual Detailed edition CD 1 Inst...

Page 2: ...wire breaking and contact failure z Tighten the screws to the specified torque 0 49 to 0 78 N m Excessive tightening can damage the terminals and screws z After tightening be sure to check that all screws have been tightened Failure to tighten any screw can cause unit malfunction fire or electric shock Connection with current sensor z Use this product in combination with the dedicated current sens...

Page 3: ...spection 1 Check the product for damage 2 Check for abnormal indication of LED lamps 3 Check for abnormal noise odor and heat generation 4 Check for loose fittings and loose wires on the terminal block Perform the check stated in 4 in the power off state Failure to do so can cause electric shock unit failure or fire 3 6 Instructions for storage z When storing the unit turn off power disconnect cab...

Page 4: ...13 Demand time limit 13 Upper and lower limit settings 14 10 Operations of Instrument 17 10 1 Measuring functions 17 10 2 Monitoring function 18 10 3 How to use the monitoring function 19 10 4 Resolution of measuring data 20 Voltage and harmonic voltage RMS 20 Current current demand and harmonic current RMS 20 Harmonic distortion rate 20 Power factor 20 Frequency 20 10 5 Restrictions on measuring ...

Page 5: ...de Circuit 1 Circuit 2 SENSOR A Circuit 3 SENSOR B Circuit 4 SENSOR A Circuit 5 SENSOR B Circuit 6 SENSOR A Circuit 7 SENSOR B Example Model EMU2 RD4 C 4W DISPLAY Connect the display unit cable SENSOR SENSOR A SENSOR B Connect the connector of the dedicated current sensor cable P0 P1 P2 P3 Input voltage of the measuring circuit FG Keep the FG terminal grounded during practical use Caution When per...

Page 6: ...and connected by experts in electrical work Applicable IEC rail 35 mm Installation Removal Fit the IEC rail with M4 or M5 screws at distances of 25 to 100 mm When connecting some rails secure both ends with slide preventive fittings When installing the unit after once it was removed from the IEC rail install it while pushing the IEC rail fitting upward Hang Push Pull up Pull the IEC rail fitting d...

Page 7: ...Circuit 2 3 phase 3 wire system primary voltage 440 V primary current 250 A A 440 V 110 V potential transformer is separately necessary Circuit 3 Not used Circuit 4 Single phase 2 wire system primary voltage 110 V primary current 50 A Circuit 5 Single phase 3 wire system primary voltage 110 V primary current 100 A Circuit 6 3 phase 3 wire system primary voltage 2200 V primary current 400 A A 2200 ...

Page 8: ...y 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 V 3 110 3 440 potential transformer is separately necessary Circuit 4 primary voltage 254 440V primary current 1000 A EMU2 CT5 4W V 3 110 3 440 potential transformer and 1000 5A current transformer are separately necessary EMU2 CT5 4W AC100 220V 0 1 2 3...

Page 9: ... length is up to 10 5 m z Use EMU2 CB T MS when the side 1 is installed at a distance from the side 3 2 Connect the extension cables EMU2 CB T MS Brown Blue White White Fitting of EMU2 CT5 4W Fit the sensor to the cable of the circuit to be measured in accordance with the following procedures 1 Slide the lock pin in the arrow direction 2 Pass the electric wire into the clamp and close the clamp 3 ...

Page 10: ...r less 38 mm2 or less 150 mm2 or less Fitting of EMU CT400 CT600 Fit the sensor to the cable of the circuit to be measured in accordance with the following procedures 1 Remove the band 1 in the arrow upward direction and remove the core cover 2 Remove the terminal cover and set the secondary short circuiting switch to Short 3 Loosen the screw 2 open the core band and remove the core Take care that...

Page 11: ...mmunication line use a dedicated line and ensure that the total wiring distance station to station distance and terminal resistance are appropriate to B RATE If a dedicated line is not used or any wiring requirement is not met normal communication may not be made For the dedicated line and wiring requirements see the instruction manual for CC Link master unit z It is necessary to fit the terminal ...

Page 12: ...thin slotted screwdriver z The relationship between the transmission rate and the setting switch is shown below Transmissio n rate 156k 625k 2 5M 5M 10M Setting If the switch is set to a state not shown above an error occurs 3 If the station number and or the transmission rate are is set or changed after power is applied to the unit press the reset switch z If the reset switch is not pressed the s...

Page 13: ...250A 300A 400A 500A 600A 750A 800A 1000A 1200A 1500A 1600A 2000A 2500A 3000A 4000A 5000A 6000A 7500A 8000A 10000A 12000A 20000A 25000A 30000A Caution EMU CT50 EMU CT100 EMU CT250 EMU CT400 and EMU CT600 are designed for low voltage circuits maximum voltage of 460 V These models are not applicable to high voltage circuits When using EMU2 CT5 pass the secondary side 5A of the current transformer thr...

Page 14: ...er limit setting Setting step Max upper lower limit setting 110 V to 220 V 0 0 V 0 1 V 440 V to 2200 V 0 V 1 V 3300 V to 110000 V 0 V 10 V Rated primary voltage setting 15 11 Power demand upper lower limit setting Full load power kW Min upper lower limit setting Setting step Max upper lower limit setting Less than 12 0 000 kW 0 001 kW 12 to less than 120 0 00 kW 0 01 kW 120 to less than 1200 0 0 k...

Page 15: ... to 200 V maximum voltage of 260 V Connecting it to a high voltage circuit by mistake may cause burnout of the unit or a fire resulting in a hazardous situation Supplementation z When EMU2 CT5 4W is used set the ratings of the primary CT Demand time limit Default 2 min The current demand time limit and the power demand time limit can be set separately One of the following settings of each item can...

Page 16: ...value and date and time of occurrence Initialize Initialize Initialize Initialize Initialize Current Instantaneous total Initialize Initialize Initialize Demand current Instantaneous max min Initialize Initialize Initialize Initialized when setting for current is changed Voltage Instantaneous max min total Initialize Initialize Electric power Instantaneous Initialize Initialize Initialize Initiali...

Page 17: ...nce of max and min Current value of electric power Current value Maximum Minimum Power demand The moving average in the specified time limit is indicated Date and time of occurrence of max and min Reactive power Current value Maximum Minimum Power factor Date and time of occurrence of max and min Frequency R S High frequency current total effective value distortion factor T Note 1 R S S T Note 1 H...

Page 18: ... VS T and VT R Single phase 3 wire Smaller value of VR S or VT R 3 phase 3 wire Smallest value of VR S VS T and VT R Minimum voltage 3 phase 4 wire Smallest value of VR S VS T and VT R 10 2 Monitoring function The parameters to be monitored are shown in the following table Monitoring item Detail Value upon occurrence Current demand upper lower limit alarm Date and time of occurrence Value upon occ...

Page 19: ...ment Lower limit setting Monitoring data Alarm status Indicates whether the alarm has occurred or not Value upon occurrence of alarm Value upon occurrence of the alarm when condition of occurrence of alarm was met not the maximum value Date and time of occurrence of alarm Date and time when the alarm occurred condition of occurrence of alarm was met Example of current demand upper limit alarm Exam...

Page 20: ...reactive power electric energy and reactive power energy Single phase 2 wire Single phase 3 wire 3 phase 3 wire 3 phase 4 wire Primary voltage setting W var 3rd decimal place Wh varh 2nd decimal place W var 1st decimal place Wh varh Integer W var Integer Wh varh 10 Primary current setting A Primary current setting A W var 3rd decimal place Wh varh 2nd decimal place W var 2nd decimal place Wh varh ...

Page 21: ...age to this unit is 160 V or less 0 Hz is displayed In the case of other setting When the input voltage to this unit is 80 V or less 0 Hz is displayed Measurement incompletion error error code 17h is returned Frequency Frequency condition When the frequency is less than 44 5 Hz 44 5 Hz is displayed as a fixed value When the frequency exceeds 66 5 Hz 66 5 Hz is displayed as a fixed value Same as on...

Page 22: ...en a minus value is displayed z Make sure that the terminals K and L of the current sensor are connected correctly z Make sure that the current line is passed through the current sensor in the correct direction Check the arrow direction printed on the nameplate the arrow mark from the power supply side to the load side 3 Connect only the side 3 of the current sensor and check the indication as sta...

Page 23: ... current voltage electric power power factor frequency high frequency voltage and high frequency current the results of measurement in a 500 msec period are processed by 2 second moving average method to be concrete the moving average of four measurements obtained in a 500 msec period is calculated Therefore the mean values of these parameters are displayed The maximum and minimum values of these ...

Page 24: ...hould attention be given for correct wiring A Check the polarity of the primary current of the current sensor K and L are shown on the power supply side and the load side of the circuit respectively An arrow mark is shown in the direction from K to L In the case of a 3 wire circuit check that the current sensor is connected to this unit without misconnection on the sides 1 and 3 Check that the vol...

Page 25: ... capacitor Compensation for power failure Clock backup time Accumulated time of power failure Approx 168 hours at 25 C Note 3 The clock is initialized 12 00 on Jan 1 2003 when the accumulated time exceeds the setting Clock accuracy Note 4 Approx 1 min month Sensor cable Use of dedicated cable optional Connection to sensor Wiring length to current sensor For split type 5A sensor Extension of 10 m 1...

Page 26: ...licable electric wire and applicable crimp type terminal terminal block Applicable electric wire 1 25 mm 2 Applicable crimp type terminal Terminal 7 2 mm or less in diameter for M3 5 Ex R1 25 3 5 bare round type ...

Page 27: ... EMU2 RD2 C 115 97 98 EMU2 RD4 C 152 5 97 98 Expected product life 10 years Note 1 110 V and 220 V circuits can be connected directly An external potential transformer is necessary for circuits of 440 V or more Note 2 When the 5A sensor is used the primary current can be set to the following values 5A 6A 7 5A 8A 10A 12A 15A 20A 25A 30A 40A 50A 60A 75A 80A 100A 120A 150A 200A 250A 300A 400A 500A 60...

Page 28: ...ng cables For CC Link connection use the specified cables The terminal resistance varies depending on the type of the dedicated cable For the details of the dedicated cables and terminal resistance see the manual supplied with the master unit 13 Peripheral Devices The following products are available Product name Model Remarks EMU CT50 50A Split type sensor EMU CT100 100A Split type sensor EMU CT2...

Page 29: ...nsions Unit mm Model name L1 L2 EMU2 RD3 F EMU2 RD2 F 4W 86 75 EMU2 RD5 F EMU2 RD4 F 4W 123 5 112 5 EMU2 RD7 F 161 150 Model name L1 L2 EMU2 RD3 C EMU2 RD2 C 4W 111 100 EMU2 RD5 C EMU2 RD4 C 4W 148 5 137 5 EMU2 RD7 C 186 175 ...

Page 30: ...2 5 22 24 Core cover M4 screw Terminal cover Secondary short circuiting switch Secondary terminal M4 screw Iron core parting face EMU2 CT5 EMU2 CT5 4W Details of sensor Dedicated cable EMU2 CB1 DR EMU2 CB1 DR 4W EMU2 CB T M EMU2 CB T MS 6 core cable Model Size L EMU2 CB T1M 1000 EMU2 CB T1M 5000 EMU2 CB T10M 10000 EMU2 CB T20M 20000 3 core cable Pair of two cables Model Size L EMU2 CB T1MS 1000 EM...

Page 31: ...nction 19 I IEC rail fitting 6 Installation 6 L LED ALARM 5 L ERR 5 L RUN 5 MEASURE 5 RD 5 RUN 5 SD 5 Lower limit 14 15 M MA MB 5 Monitoring function 18 O Optional parts 30 P P0 P1 P2 P3 5 Part Names and Functions 5 Peripheral Devices 28 Phase and Wiring 13 15 Primary current 13 15 Primary voltage 13 15 Q Q A 23 R RESET 5 Resolution of measuring data 20 Restrictions on measuring data 21 S Safety p...

Page 32: ...16 Bo Aung Gyaw Street Botataung 1161 Yangon Myanmar 95 0 1 202589 202449 202590 Nepal Watt Volt House Co Ltd KHA 2 65 Volt House Dllli Bazar Post Box 2108 Katmandu Nepal 977 1 411330 Pakistan Prince Electric Co 16 Brandreth Road Lahore 54000 Pakistan 92 0 42 7654342 Philippines EDISON ELECTRIC INTERGRATED INC 24th Fl Galleria Corporate Center Edsa Cr Ortigas Ave uezon City Metro Manila Philippine...

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