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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). For a current, when a rated current is set to 5 A, ±0.5% of 5 A is a tolerance.

Is accuracy of a CT and a VT included?

Accuracy of a CT and a VT is not included in accuracy of the

unit.

A maximum value of tolerance is obtained by summing tolerance of the unit and that of a CT and a VT.

To what degree an area of micro current is measured?

A current value is measured from the area exceeding 0.4% of the rated current. In an area below 0.4%, measurement result is indicated

as “0” (zero). However, in that case, still, the amount of electricity is being measured. Even if the indicated value is “0,” measurement

value will increase in continuing measurement for a long time.

The amount of electricity is measured with a load that is about 0.1% or more of all load power.

Is measurement of inverter circuit possible?

Measuring the secondary side of the inverter is impossible due to the large fluctuation of frequency

Make measurement on the primary side of the inverter. However, since a current waveform on the primary side of the inverter has a

distortion containing the harmonic components, a slight error occurs.

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Q&A about connection

Does polarity exist in connection between a CT and the unit?

Yes.

Make connections so that the polarity of the secondary terminals of a CT and terminal symbols of this unit agree with each other. If

polarity is incorrect, the current value is measurable, but the electric power and the electrical energy cannot be measured correctly.

Are there any key points in avoiding errors in wiring?

Check polarity of a CT. And also, check the wiring between the secondary side of a CT and this unit are connected correctly for the 1-side

circuit, 2-side circuit, and 3-side circuit.

Besides, check that voltage inputs for voltage transform unit are connected correctly among P1, P2, P3, and P0.

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Q&A about setting

Is the setting required?

At least, settings of phase wires, primary current and primary voltage are required. Specify settings in accordance with a circuit to be

connected.

Содержание EMU4-FD1-MB

Страница 1: ...EL 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 ...

Страница 2: ...damage ignoring this marking Supplement Indicates that precautions to avoid a malfunction and to work the unit properly Indicates that the pages described that related matters Features This Energy Measuring unit can measure various types of electric quantity such as voltage current electric power and electric energy The measured data can be sent to the high end device such as a monitoring device b...

Страница 3: ...ay time alarm reset etc 26 Setting menu 5 Setting related to logging unit 28 Setting menu 5 MODBUS TCP communication 29 Confirmation menu 1 5 Confirmation of setting values in setting menu 1 5 30 Initialization of related items by change of setting 31 Clock setting and logging data clear 32 Change of date format 33 How to use test mode 34 Test menu 1 Discrimination support function for improper co...

Страница 4: ...his work Work under the electric outage condition when installing and wiring Failure to do so may cause electric shock a failure of the unit a fire etc When tapping or wiring take care not to entering any foreign objects such as chips and wire pieces into this unit Check the connection diagram when wiring Wrong wiring may cause failure of the unit a fire or electric shock For protection against no...

Страница 5: ... side of the CT circuit If the CT is not connected properly or if the secondary side of the CT is open it may result in high voltage on the secondary side of the CT the insulation of the secondary winding wire may be damaged and burnout may be caused Maintenance Precautions Use a soft dry cloth to clean off dirt of the unit surface Do not let a chemical cloth remain on the surface for an extended ...

Страница 6: ...C rail fixture Terminal symbols Function Description P1 P1 P2 P0 P3 P3 NC P2 Input voltage Connect the voltage input wire of the measuring circuit Frame GND FG Connect to ground D type ground MA MB Auxiliary power Connect the auxiliary power supply 1k 1L 2k 2L 3k 3L Input current Connect the secondary output of the current transformer CT connected to the measurement circuit s current wire 485 485 ...

Страница 7: ...ed when pressing more than 1sec Change setting items backward Transition to setting menu number at beginning setting item Go back to setting menu Confirmation mode Setting display Change setting items forward Transition to setting menu number at final setting item Change setting items backward Transition to setting menu number at beginning setting item Transition to setting menu Confirmation displ...

Страница 8: ...rface mounting 1 How to attach to the IEC rail Applicable IEC rail Attaching Removing 1 When showing the display part by cutting the panel face in mounting the IEC rail cut the panel at where it is more than 50mm away from the fulcrum of the open close of the door 2 Catch IEC rail 4 Push the IEC rail fixture upward 3 Push in 1 Hold the unit and pull IEC rail fixture downward 2 Pull the unit 1 Pull...

Страница 9: ...que 0 63N m Mounting screws Plate Recommended screws cross recessed head screw with captive washer and flat washer M3 10 2pcs Outline of the measuring unit Panel cut dimensions are made larger than the product considering tolerance in panel cut If you want to prevent dust and other intrusion the gap of panel cut cut the panel according to the product to be mounted Panel cut dimensions are made lar...

Страница 10: ...unting attachment Please screw up the panel mounting attachment where there are high levels of vibration The screws mounting screws and screws for panel mounting attachment are supplied with panel mounting attachment Outline of the measuring unit Please screw up the panel mounting attachment where there are high levels of vibration The screws mounting screws and screws for panel mounting attachmen...

Страница 11: ...3 1 phase 3 wire type max AC110V L N 220V L L Figure 4 1 phase 2 wire type Note DELTA max AC220V L L Figure 5 STAR max AC440V L L Figure 6 Note In case of a circuit which is wired from the delta connection of a 3 phase 3 wire type a circuit of a transformer of a 1 phase 2 wire type or a 1 phase 3 wire type the maximum rating is AC220V In case of a circuit which is wired from a 3 phase 4 wire type ...

Страница 12: ...do not connect to grounding the secondary side of VT and CT l k l l k l l k l 2 3 4 refer to next page 1 4 refer to next page l k l l k l l k l 2 3 4 refer to next page 1 4 refer to next page l k l l k l l k l l k l l k l 1 4 refer to next page See 3 See 4 See 4 See 3 See 2 ...

Страница 13: ...er to the following External input For the case of contact input External input For the case of pulse input External output For the case of contact output External output For the case of pulse output Caution 1 For low voltage circuits do not connect to grounding the secondary side of VT and CT 2 When this unit is used at a high voltage circuit the terminal P0 P2 must be connected to ground 3 When ...

Страница 14: ... resistance of 110 Ω in the PLC side Please refer to Page14 Wiring for MODBUS UNIT QJ71MB91 and EMU4 FD1 MB for the details 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 4 MODBUS RTU transmi...

Страница 15: ...r details please refer to Mitsubishi frequent use sequencer MELSEC Q Series QJ71MB91 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 ...

Страница 16: ...s the test function that can be used for such as set up of an equipment Discrimination support display for incorrect wiring Display useful to discriminate for incorrect wiring such as phase angle display of voltage current Pulse Alarm test Switch pulse output contact and alarm contact without measurement voltage and current input Communication test Send back fixed numerical data without measuremen...

Страница 17: ...ed Please check them beforehand page 31 Phase wire system Factory default Primary voltage use or non use of VT Primary voltage With VT or Direct Primary current Secondarycurrent Current demand time Model Name MODBUS RTU address MODBUS RTU baud rate MODBUS RTU parity MODBUS RTU stop bit Contact pulse input Resetmethod of contact input Contact pulse output End display Unit amount of pulse output 3 E...

Страница 18: ...me time for 2 sec Use of upper lower limit alarm Upper lower limit alarm element Upper lower limit alarm value Alarm delay time Alarm reset method Logging module ID Logging data clear confirmation Test mode 6 10 Setting menu 4 Alarm setting Setting menu 5 MODBUS TCP setting Logging setting Setting menu 6 Testmode Setting mode or confirmation mode 1 On confirmation mode transition to operating mode...

Страница 19: ...se the setting menu 1 As shown in the left figure 1 Phase wire system Set according to the phase wire system for the measured circuit 3P4 Three phase 4 wire 1P2 Single phase 2 wire 1P3 Single phase 3 wire 3P3 Three phase 3 wire Supplement The underlined values are the defaults The same shall apply hereinafter 2 Primary voltage Use or non use of VT If you measure directly i e without VT Choose no a...

Страница 20: ...600V Caution In case you set the value except for between 1V and 6600V indicate the error E005 When indicating the error press to check the setting values and set the new value again Press at the lowest digit to transition to 6 Special secondary voltage The values set the upper fourth digit and lowers to are rounded down After setting value flashes three times transition to 6 Special secondary vol...

Страница 21: ...e special primary current of combined CT Setting range 1A to 6000A Default 100 0A Setting of special primary current Press or to choose the value at flashing digit Press for the setting digit flashing digit to shift to lower Press for the setting digit flashing digit to shift to upper You can set the value in the range from 1A to 6000A If the value is less than 10A you can set upper two digits of ...

Страница 22: ...M 25M 30M Set the electric power demand time On setting display s means second and M means minute 0s 10s 20s 30s 40s 50s 1M 2M 3M 4M 5M 6M 7M 8M 9M 10M 11M 12M 13M 14M 15M 20M 25M 30M 11 Electric power demand time 12 Model code The model code can be confirmed This is only display and settings cannot be changed Setting menu Complete the setting or continue in other menu according to procedures for ...

Страница 23: ... the left figure Setting menu Complete the setting or continue in other menu according to procedures for setting For procedures for setting page 16 1 Address for MODBUS RTU Set the address for MODBUS RTU Available address 1 to 255 2 Baud rate for MODBUS RTU 2400bps 4800bps 9600bps 19200bps 38400bps Set the transmission speed for MODBUS RTU 3 Parity for MODBUS RTU EVEn non odd Set the Parity for MO...

Страница 24: ...se non PLS CO P 2 Reset method of contact input Set the reset method of contact input Reset method Setting value Summery Auto reset Auto When contact input turns OFF open contact input state display also turns OFF open automatically Self retention HoLd Once the device detects contact input ON close contact input state display keeps ON close until retention clear operation even if contact input tur...

Страница 25: ...gle phase 3 wire 3 Three phase 3 wire 3 Three phase 4 wire Full load power kW α x VT primary voltage x CT primary current 1000 5 Equivalent CO2 indication Set whether the equivalent CO2 is indicated or not CO2 equivalent is the integration of the value obtained by multiplying electric energy and CO2 conversion factor If you need this indication choose on and press to transition to the setting belo...

Страница 26: ...grated while this setting is oFF oFF Do not indicate on Indicate 10 Counting method of operating time Set the counting method of operating time When A is selected operating time is the time integrated while the current measurement When CO P is selected operating time is the time integrated while external input is ON A By current CO P By contact input Setting menu Complete the setting or continue i...

Страница 27: ...ric power demand V L L Line voltage V L N Phase voltage 2 DA N and V L N are selectable in three phase 4 wire system 3 PULSE is only selectable when you choose Pulse PLS on 1 Contact pulse input of setting menu No 3 DA upper limit DA lower limit DA N upper limit V L L upper limit V L L lower limit V L N upper limit V L N lower limit DW upper limit DW lower limit PF upper limit PF lower limit PULSE...

Страница 28: ... delay time from fulfilling alarm occurring condition Set the alarm delay time if you want to avoid the alarm caused by such as instant overload and noise Once setting the alarm does not occur unless the time of exceeding the upper lower limit alarm value is over the specified delay time In setting display s means second and M means minute 0s 5s 10s 20s 30s 40s 50s 1M 2M 3M 4M 5M 4 Alarm delay tim...

Страница 29: ...tting menu non indication 1 Logging unit ID Set the ID number of logging unit Available ID 1 to 255 2 Logging data clear confirmation Clear the logging data no Do not clear data yES Clear data Setting menu Complete the setting For procedures for setting page 16 RESET SET SET DISP SET SET DISP DISP Caution You should set the setting menu 5 individually You should not set it with other setting menu ...

Страница 30: ...255 255 128 0 25 255 255 255 128 2 192 0 0 0 10 255 192 0 0 18 255 255 192 0 26 255 255 255 192 3 224 0 0 0 11 255 224 0 0 19 255 255 224 0 27 255 255 255 224 4 240 0 0 0 12 255 240 0 0 20 255 255 240 0 28 255 255 255 240 5 248 0 0 0 13 255 248 0 0 21 255 255 248 0 29 255 255 255 248 6 252 0 0 0 14 255 252 0 0 22 255 255 252 0 30 255 255 255 252 7 254 0 0 0 15 255 254 0 0 23 255 255 254 0 8 255 0 ...

Страница 31: ...ult gateway address 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 The following default gateway addresses cannot be configured 0 0 0 0 xxx xxx xxx 255 xxx are any values SET 0 0 0 0 to 127 0 0 1 to 255 255 255 255 5 MODBUS TCP module reset When the changed above settings of MODBUS TCP are enabled set...

Страница 32: ...sk MODBUS TCP Default gateway existence MODBUS TCP Default gateway address Phase wire system Use of VT Direct voltage Primary voltage Special primary voltage Secondary voltage Primary current Special primary current Secondary current Electric power demand time Current demand time MODBUS RTU address MODBUS RTU baud rate MODBUS RTU parity MODBUS RTU stop bit Contact pulse input Contact reset status ...

Страница 33: ... confirmation Confirm logging data clear If you do not clear logging data choose no and press to enter date indication operating mode If you clear logging data choose yES and press to transition to below setting Caution If you choose no i e do not clear data the clock setting is not changed no Do not clear data yES Clear data SET SET Final confirmation Confirm logging data clear finally If you do ...

Страница 34: ...e indication as shown in the right figure automatically Date indication MM DD YYYY Date format setting DD MM YYYY Set the date format to DD MM YYYY format If you want to change to the other format go back to date indication and then change format The display transitions to DD MM YYYY format indication as shown in the left figure One second later it transitions to date indication as shown in the ri...

Страница 35: ...he pulse output without the input of measurement voltage and current Use for such as the check of the connection to the receiving device 4 Alarm output test You can check the alarm output without the input of measurement voltage and current Use for such as the check of the connection to the receiving device How to test 1 Press for two seconds to enter confirmation mode 2 Press or to choose confirm...

Страница 36: ...se angle Current phase 1 Electric power phase 1 SET PHASE Indicate the phase angle electric power voltage and current Example for three phase 4 wire Phase angle Voltage phase 2N Phase angle Voltage phase 3N Phase angle Current phase 1 Phase angle Current phase 1 Electric power phase 2 Electric power phase 3 Voltage phase 1N Voltage phase 2N Voltage phase 3N Current phase 1 Current phase 2 Current ...

Страница 37: ...e direction from V12 as baseline 0 degree Phase angle Current phase 1 Electric Power phase 1 Voltage Current Phase angle Voltage phase 12 Phase angle Voltage phase 23 Phase angle Current phase 3 V23 V12 I3 I1 I2 I1 V23 I3 V23 Phase angle between V23 and V12 I1 Phase angle between I1 and V12 I3 Phase angle betweenI3 and V12 Electric Power phase 3 SET PHASE SET SET SET SET SET PHASE PHASE PHASE PHAS...

Страница 38: ...120 1 270 150 Delayed 0 866 300 180 Delayed 0 707 315 195 Indicates improper connection Current display Connection of VT s terminals in order of P2 P3 P1 to measuring instrument s terminals P1 P2 P3 W1 Negative value W3 Positive value V12 V23 V31 I1 I2 I3 I1 I2 I3 I1 I2 I3 Wiring At the average current V12 V23 Ｉ1 Ｉ3 Phase angle display Voltage display 0 300 V12 V23 V31 V12 V23 V31 V12 V23 V31 I1 I...

Страница 39: ... P3 P1 Connection of P1 P2 P3 terminals of measuring instrument is reversed P3 P2 P1 3K 3L Forward P2 P1 1K 1L Forward 3K 3L Forward P1 P3 1K 1L Forward 3K 3L Forward P3 3K 3L Forward 1K 1L Forward 3K 3L Forward 1K 1L Forward 3K 3L Forward 3K 3L Revers e P2 P3 P3 P2 P1 P1 Voltage Current Connecting diagram Connection Norma l status Power factor Input No I1 I3 I2 0 Electric power display Voltage di...

Страница 40: ... value W1 Positive value W2 Negative value W3 Positive value V1N V2N V3N V1N V2N V3N W1 Negative value W2 0 W3 Positive value I1 I2 I3 I1 I2 I3 240 0 240 0 330 V1N V2N V3N W1 0 W2 Positive value W3 Negative value W1 Negative value W2 Positive value W3 Negative value W1 Negative value W2 Positive value W3 Positive value W1 Negative value W2 Positive value W3 0 W1 Negative value W2 Positive value W3...

Страница 41: ...erage current V1N V2N V3N I1 I2 I3 No Power factor input Phase angle display 0 120 V1N V2N V3N Electric power display Voltage display 0 60 0 330 V1N V3N V2N 0 120 0 120 W1 Positive value W2 Negative value W3 Positive value 30 W1 Negative value W2 Positive value W3 Positive value 240 I1 I2 I3 I1 I2 I3 V1N V2N V3N V1N V2N V3N I1 I2 I3 V1N V2N V3N I1 I2 I3 0 120 W1 Positive value W2 Negative value W3...

Страница 42: ...egative value W1 Positive value W2 Positive value W3 0 W1 Positive value W2 Positive value W3 Positive value V1N V2N V3N I1 I2 I3 0 240 I1 I2 I3 W1 Negative value W2 Negative value W3 0 W1 Negative value W2 Negative value W3 Negative value I1 I2 I3 W1 Negative value W2 Positive value W3 Negative value I1 I2 I3 V1N V2N V3N 0 120 240 W1 Positive value W2 Negative value W3 Positive value W1 Positive ...

Страница 43: ...ard 0 866 W1 Positive value W2 Negative value W3 Negative value W1 Positive value W2 Negative value W3 Negative value W1 0 W2 Negative value W3 Negative value W1 Negative value W2 Negative value W3 Negative value No Power factor input Phase angle display Electric power display Current display At the average current V1N V2N V3N I1 I2 I3 W1 Negative value W2 Positive value W3 Negative value W1 Negat...

Страница 44: ...alue W1 Positive value W2 Positive value W3 Positive value V1N V2N V3N 0 0 240 W1 Negative value W2 Positive value W3 Negative value W1 Negative value W2 Negative value W3 Negative value 120 W1 Negative value W2 0 W3 Negative value W1 0 W2 Negative value W3 Negative value W1 Positive value W2 Negative value W3 Negative value 240 0 330 V1N V2N V3N 0 240 120 30 W1 0 W2 Positive value W3 Positive val...

Страница 45: ...0 707 32 Forward 0 707 Forward 0 866 1 Delayed 0 866 Delayed 0 707 31 Forward 0 707 Forward 0 866 1 Delayed 0 866 Delayed 0 707 30 Forward 0 707 Forward 0 866 1 Delayed 0 866 Delayed 0 707 I1 I2 I3 I1 I2 I3 W1 W2 W3 W1 Negative value W2 Negative value W3 Positive value W1 0 W2 Negative value W3 Positive value W1 Positive value W2 Negative value W3 Positive value I1 I2 I3 I1 I2 I3 W1 W2 W3 0 240 12...

Страница 46: ...Indicates improper connection Wiring Phase angle display Electric power display 30 V1N V2N V3N I1 I2 I3 I1 I2 I3 V1N V3N V2N W1 Positive value W2 Negative value W3 Negative value W1 0 W2 Positive value W3 Negative value W1 Positive value W2 0 W3 Negative value W1 Negative value W2 Positive value W3 Negative value W1 Positive value W2 Positive value W3 Negative value W1 Positive value W2 Negative v...

Страница 47: ... display Electric power display Indicates improper connection Wiring W1 Negative value W2 Negative value W3 Positive value V1N V2N V3N V1N V3N V2N I1 I2 I3 W1 Negative value W2 Positive value W3 Positive value W1 Negative value W2 Positive value W3 0 W1 0 W2 Negative value W3 0 W1 Positive value W2 Negative value W3 Negative value I1 I2 I3 0 60 W1 Negative value W2 Positive value W3 Negative value...

Страница 48: ... system primary voltage primary current is possible Display Button operation Operation Function Press Change element Press Change phase Press Change degree indication of harmonic only Press for more than 1sec Return to test menu DISP PHASE RESET SET Indication is made according to the setting of indication pattern etc as with operating mode If you continue other test menu Choose other test menu nu...

Страница 49: ...continue other test menu Choose other test menu number and press If you finish the test mode Choose End and press to return to operating mode Test menu SET SET Test menu Choose the test menu 4 As shown in the left figure Test the alarm output Switch output status off and on by pressing 4 Alarm output test Supplement Output should turn oFF when returning to test menu oFF on PHASE PHASE If you conti...

Страница 50: ...nd kW MW Unit varies depending on the setting value P 52 Reactive power kVAR MVAR Unit varies depending on the setting value P 52 Sign explanation Unsigned Lag Lead Apparent power kVA MVA Unit varies depending on the setting value P 52 Indicated in three phase 4 wire 3P4W only Power factor Sign explanation Unsigned Lag Lead Frequency Hz RMS value of harmonic current RMS value of total harmonic cur...

Страница 51: ...f contact input Indicated in only when contact pulse input P 23 is set to CO P skipped this display when set to PLS Operating time h Indicated in only when operating time indication P 25 is set to on skipped this display when set to oFF Date Indicated in only when the logging unit is connected Note The display example above mentioned is the example when measuring electric energy consumption Change...

Страница 52: ... harmonic voltage V Content rate of harmonic current Content rate of harmonic voltage Current 1st phase 1 Current average phase 1 Current 3rd phase 1 Current 15th phase 1 Change phase Reference Change phase on the previous page Change phase Change phase Displayed in following order 5th 7th 9th 11th 13th Change phase Reference Change phase on the previous page Change phase Change phase Voltage aver...

Страница 53: ... as follows depending on the full load power For the full load power refer to above Full load power kW Indication format Digital indication Unit less than 12 888 888 kW kvar kVA 12 or more and less than 120 8888 88 120 or more and less than 1200 88888 8 1200 or more and less than 12000 888888 12000 or more 8888 88 MW Mvar MVA Indication of current and current demand Indication format The indicatio...

Страница 54: ...on rate of harmonic current Content rate 888 8 RMS value of harmonic voltage same as voltage same as voltage Distortion rate of harmonic voltage Content rate 888 8 Indication of equivalent CO2 Indication format To indicate equivalent CO2 the indication setting of it is needed in advance The indication format of it is as follows depending on the full load power Full load power kW Indication format ...

Страница 55: ...demand Power factor Auto reset Auto Upper limit monitoring Occurrence Measured value configured upper limit Alarm delay time is available Recovery Measured value configured upper limit Lower limit monitoring Occurrence Measured value configured lower limit Alarm delay time is available Recovery Measured value configured lower limit Self retention HoLd Upper limit monitoring Occurrence Measured val...

Страница 56: ...mode press button for two seconds to clear the alarm Alarm clear is effective even in other than the alarm occurrence phase Lower limit alarm occurs Alarm status No alarm Alarm delay time Alarm delay time Alarm delay time Alarm delay time Measured value Time Upper limit alarm value Lower limit alarm value First measurement after the power is on No alarm No alarm No alarm Lower limit alarm occurs U...

Страница 57: ...se yES to reset all the integrated values to zero then back to the integrated value display In all data reset display choose no to cancel resetting then back to the integrated value display All data reset display transition Operation of preset display Press or to choose the value at flashing digit Press for the setting digit flashing digit to shift to lower Press for the setting digit flashing dig...

Страница 58: ...he set period of current demand is indicated Reactive power Apparent power Power factor Frequency Harmonic current RMS Total 1st 3rd 15th phase 1 phase 2 phase 3 phase N Distortion ratio Total 3rd 15th phase 1 phase 2 phase 3 phase N Harmonic voltage RMS Total 1st 3rd 15th phase 1N phase 2N phase 3N phase 12 phase 23 Distortion ratio Total 3rd 15th phase 1N phase 2N phase 3N phase 12 phase 23 Elec...

Страница 59: ...hree phase 3 wire RMS current value Average phase 1 current phase 3 current 2 Three phase 4 wire RMS current value Average phase 1 current phase 2 current phase 3 current 3 RMS voltage value Average Single phase 2 wire RMS voltage value Average voltage V12 Single phase 2 wire Three phase 3 wire RMS voltage value Average voltage V12 voltageV23 2 Three phase 4 wire RMS voltage value Average voltage ...

Страница 60: ...r 40V 0 0 Frequency condition Indicate at all phases if frequency is under 44 5Hz 0 Content rate of harmonic current modulation distortion Voltage condition Indicate at all phase if voltage V12 voltage V1N for 3P4W is under 11V Indicate 0 0 at all phase if voltage V12 voltage V1N for 3P4W is under 40V 0 0 Frequency condition Indicate at all phases if frequency is under 44 5Hz Outside channel error...

Страница 61: ...ined values are different from other measuring instruments over tolerance Check that the measuring instrument used for comparison indicates a correct RMS value This unit indicates an RMS value If the measuring instrument used for comparison measures an average value instead of RMS value distortion caused by harmonic etc in the current of the circuit to be measured causes a significant difference o...

Страница 62: ...2 times as high as rated voltage Momentary means Energizing 9 times for 0 5 seconds at 1 minute intervals and then 1 time for 5 seconds Continuous Up to 1 2 times as high as rated voltage and rated current Q Can the unit be used as an electric energy meter A This unit cannot be used for deal and proof of electric energy measurement stipulated in the measurement law Q Are errors in wiring verifiabl...

Страница 63: ...bout 0 1 or more of all load power Q Is measurement of inverter circuit possible A Measuring the secondary side of the inverter is impossible due to the large fluctuation of frequency Make measurement on the primary side of the inverter However since a current waveform on the primary side of the inverter has a distortion containing the harmonic components a slight error occurs Q A about connection...

Страница 64: ...dition for harmonized standard The energy measuring unit is the open type device i e the device incorporated in other device and needs to be installed in the conductive control panel The unit is tested with installed in the control panel for the emission and the immunity out of the test items for the standard 2 Recommended condition for installation in the control panel a Control panel Control pan...

Страница 65: ... Pulse count 0 999 999 counts Setting to contact input Contact monitoring only Contact monitoring and energy measuring at work when contact is on Isolation By photo coupler Rated input voltage and current Voltage of the contact is 5V DC and current is 7mA so use something appropriate for the switching condition Input condition Pulse Pulse ON time 30ms or longer Pulse OFF time 30ms or longer Chatte...

Страница 66: ...he protruding portions 79 W x 90 H x 75 D Product life expectancy 10 years under usage environmental condition indicated above Possible combination optional unit for UL EMU4 LM EMU4 CM C EMU4 CM CIFB EMU4 CM MT 1 110V 220V 440V AC can connected to this unit directly For the circuit over this voltage transformer VT is necessary Primary voltage of VT can be set up to 6600V and secondary voltage of V...

Страница 67: ...ree phase 4 wire system replace VT primary voltage or direct voltage with phase voltage in calculation above Full load power kW Multiplying factor less than 12 0 01 12 or more and less than 120 0 1 120 or more and less than 1200 1 1200 or more and less than 12000 10 12000 or more 100 The multiplying factor of electric power power demand reactive power and apparent power is as follows depending on ...

Страница 68: ... 67 71 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 ...

Страница 69: ... 68 71 CC Link communication unit EMU4 CM C Dimensions MODBUS TCP communication unit EMU4 CM MT Dimensions ...

Страница 70: ... 69 71 CC Link IE Field Network Basic Communication unit EMU4 CM CIFB Dimensions For specifications please refer to each manual ...

Страница 71: ... 70 71 14 External dimensions Unit mm EMU4 FD1 MB When installing the attachment ...

Страница 72: ...ance precautions 4 Measured item indication 52 Measured items 57 MODBUS R RTU communication 22 MODBUS R TCP communication 29 Name and function of each part 5 Operating mode 15 Operation procedure 49 Option devices 67 Precautions for use 4 Preset 56 Phase wire system 18 Procedures for setting 16 Procedure for wiring 10 Pulse output test 48 Q A 61 Requirement for the compliance with EMC Directives 6...

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