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Installation 4. Wiring Diagram

Note for Input

Note

1. The voltage input terminals for 3-phase 3-wire are different from those for others.
2. If the polarity for VT and CT are wrong, the measurement cannot be executed correctly.
3. Do not connect wires to the NC terminals.
4. In the case of low voltage, there is no need for grounding of the secondary sides of VT and CT.
5. Always earth the terminal to the protective earth conductor. Earth the terminal with less than

100 ohm of earth resistance. Otherwise there will be a false operation.

Note for MODBUS

®

RTU

Note

1. Use the shielded twisted pair cable. (Recommended cables: Refer to page 66.)
2. To the units at both ends of the MODBUS

®

RTU link, the 120-ohm resistance has to be

attached. This instrument can perform a 120-ohm termination by short-circuiting the terminal of
T/R- and Ter.

3. The earthing has to be connected to earth by a thick wire of low impedance.
4. Keep the distance between MODBUS

®

RTU link to power lines.

5. Connect to earth the SLD terminal at one end.

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Содержание ME96SSHA-MB

Страница 1: ... MODEL ME96SSEA MB User s Manual Detailed Edition 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: ...lified 1 A3 size Attachment lug with screw 2 About the optional plug in module sold separately This product cannot be installed the optional plug in module Please use a combination of other classes ME96SSHA MB ME96SSRA MB and the optional plug in module if analog output CC Link communication contact input and output MODBUS TCP communication or Logging function etc is required ...

Страница 3: ...d protection setting avoids undesired change of settings or deletion of measured data The instruments with transmission function MODBUS RTU communication are able to transmit the measured data to superior monitoring devices This instrument complies with the requirements of the CE marking UL standards KC mark and FCC IC MODBUS is a registered trademark of SCHNEIDER ELECTRIC USA INC in the United St...

Страница 4: ...us 1 9 Confirming the Settings in the Setting Menus 1 8 and Test Mode in Setting Menu 9 30 3 11 Initializing Related Items by Changing Settings 31 3 12 Initializing All Settings 31 3 13 Setting the Special Display Pattern P00 32 3 14 Examples of Simple Settings 34 4 Using Test Mode 36 4 1 Test Menu 1 Communication Test 37 5 Operation 38 5 1 Basic Operation 38 Switch display 38 Switch phase 38 Bar ...

Страница 5: ...oting 55 Installation Installation 1 Dimensions 56 Installation 2 Mounting 57 Installation 3 Wiring 58 Installation 4 Wiring Diagram 60 Specifications Specifications 65 1 Specification 65 2 Applicable Standards 66 3 Specifications of MODBUS RTU Communication 66 4 Setting Table Factory Settings and Customer Setting Note 67 Appendix 68 1 Calculation methods of ME96SS for 3 phase unbalanced system wi...

Страница 6: ...s Ambient temperature 5 to 55 C Average day temperature 35 C or less Humidity 0 to 85 RH non condensing Altitude 2000m or less Pollution Degree 2 or less Note 1 Atmosphere without corrosive gas dust salt oil mist Indoor use Transient over voltage 4000V or less Note 1 A place without excessive shocks or vibration Do not expose to rain and water drips Do not expose to direct sunlight An area in wher...

Страница 7: ...en the terminal screws with the specified torque and use the suitable pressure connectors and suitable wire size Refer to page 58 In order to prevent invasion of noise do not bunch the control wires or communication cables with the main circuit or power wire or install them close to each other The distance between communicational signal lines input signal lines and power lines and high voltage lin...

Страница 8: ...pment should satisfy the rating of the external terminal of this instrument Maintenance instructions Wipe dirt off the surface with a soft dry cloth Do not contact a chemical dust cloth to the instrument for a long time or do not wipe it with benzene thinner alcohol Check for the following items to use this instrument properly for long time 1 Daily maintenance No damage on this instrument No abnor...

Страница 9: ...a fire abnormal voltage etc and force majeure such as an earthquake wind flood etc Failures due to matters unpredictable based on the level of science technology at the time of product Our company shall not be liable to compensate for any loss arising from events not attributable to our company opportunity loss and lost earning of the customer due to failure of the product and loss secondary loss ...

Страница 10: ...a cabinet have to be ensured conductivity for each other A cabinet has to be connected to earth by a thick wire of low impedance Holes on faces of cabinet have to be 10 cm or less in diameter The terminals for protective earth and functional earth have to be connected to earth by a thick wire of low impedance A terminal for protective earth is important not only for safety but also for EMC All con...

Страница 11: ...MODBUS RTU communication transmission terminal T R MODBUS RTU communication transmission terminal SG Signal Ground Ter Termination terminal 120 Ω termination when short circuited to the terminal T R SLD Shielded wire terminal Ground resistance 100 Ω or less Voltage Input terminals P1 P2 P3 PN Input a circuit voltage Auxiliary power input terminals MA MB Connect to an auxiliary power Ground termina...

Страница 12: ...status They show the phase for each of the digital displays 9 Digital display Measured values displayed in digital 10 Unit Units of measuring value displayed 11 Metering status Flickers when counting active energy Note 1 only active energy imported display 12 Harmonics Turns on when harmonics displayed 13 Setup status Turns on at setting mode Flickers at setting value confirmation mode 14 Test mod...

Страница 13: ...Stopping backlight flickering alarm Only effective in setting backlight flicker Mode changes The display of Setting mode appears The display of Set value confirmation mode appears The display of password protection mode appears Setting Setting value confirmation mode Setting operation The setting items are saved and setting item is changed to next item Back to the previous item The values of setti...

Страница 14: ...al operations can be executed from the CANCEL Display for changing cancelling setting values The instrument is reset Reset the settings to the factory defaults P 14 to P 29 P 31 to P 35 Setting Value confirmation mode Test Mode This mode is for confirming the setting values for each setting item In this mode settings cannot be changed in order to prevent accidental changing of settings This mode c...

Страница 15: ...hen a setting is changed the related setting items and measurement data will be reset to the default settings Refer to page 31 Measurement Display Setting Menu End End Display CANCEL Display Automatic migration Time constant for current demand Frequency CT current VT direct voltage Display Pattern Phase wire system Setting Menu 1 Setting Menu 2 Setting Menu 3 Cancel the settings Save the setting I...

Страница 16: ...ration mode to the setting mode Press them simultaneously Shift from the operation mode to the set value confirmation mode Press it for 2 seconds Select the menu number to set or End or Press it several times Get into each setting screen Shift to the next setting item Press it Go back to the previous setting item Press it Omitted in figure Select a set value or Press it several times Shift to the ...

Страница 17: ...hase 3 wire 1N3 display 1P2 1 phase 2 wire Set the setting menu number to 1 as shown in the right figure Setting Menu Display Pattern Set the display pattern The following table shows the measurement elements that can be displayed by each display pattern For more details about display patterns refer to page 47 48 In addition if there is no display pattern that you want from P01 to P09 select the s...

Страница 18: ... phase 2 wire Note VT is voltage transformers 1 For direct input without VT Set the direct voltage a For 3 phase 4 wire phase to neutral voltage phase to phase voltage b For 3 phase 3 wire 2CT 3CT or 1 phase 2 wire c For 1 phase 3 wire 1N2 1N3 phase to neutral voltage phase to phase voltage VT direct voltage When phase wire system is set to 1 phase 3 wire Use only for direct input This setting wil...

Страница 19: ...tep will shift to the next one 1A 5A DISPLAY SET SET SET Continued form the previous page 2 When using VT Set the secondary and primary voltages of the VT a For 3 phase 4 wire Phase to phase Voltage b For 3 phase 3 wire 2CT 3CT or 1 phase 2 wire phase to neutral voltage Primary Voltage Settings Default value For 3 phase 4 wire 200V Phase to phase Voltage For 3 phase 3 wire or 1 phase 2 wire 10000V...

Страница 20: ...t be reset For detail refer to section 3 11 SET DISPLAY SET Set the frequency Frequency 50Hz 60Hz Note1 The scale value of the frequency of the bar graph display is changed too Set the time constant for current demand For the demand time period refer to page 43 Note Even when the display pattern not display the current demand this screen appears If the current demand is not necessary press the as ...

Страница 21: ...RTU parity MODBUS RTU parity non odd even EVEn Set the MODBUS RTU baud rate MODBUS RTU baud rates 2400bps 4800bps 9600bps 19 2kbps 38 4kbps Set the MODBUS RTU address number Selectable addresses 1 to 255 MODBUS RTU address Set the MODBUS RTU stop bit MODBUS RTU stop bit Stop bit 1 Stop bit 2 Set the setting menu number to 2 as shown in the right figure Setting Menu According to the setting flow pa...

Страница 22: ... as shown in the right figure Setting menu Set the current maximum scale If you have not set current to Display pattern this display menu will be skipped 1 Maximum scale value Primary Current 1 4 1Primary Current Setting value SP Special Setting 2 Special current maximum scale This display is displayed when you set the SP in 3 1 3 STEP About 120 to 0 STEP 100 Rating to 10 STEP About 40 Note The ma...

Страница 23: ... input is within 100 of rated current SET DISPLAY SET Set the power factor scale If you have not set power factor to Display pattern this display will be skipped Power factor scale 0 5 to 1 to 0 5 0 to 1 to 0 Set on or off of the harmonic measurement display When the display is set to on the harmonic measured value can be displayed on an additional screen of the display pattern Harmonics oFF on No...

Страница 24: ...ate time The backlight can be set to continuous on HoLd or auto off Auto Backlight auto off Auto HoLd When auto off Auto is selected No button operation for 5 minutes the backlight turns off Button operation during off Note the backlight turns on for 5 minutes Note When the backlight is off pressing any button once does not switch the display but only turns on the backlight Pressing any button aga...

Страница 25: ...ote 1 Measurement items that are not selected in the display pattern can be selected Note 2 DA Current demand DAN N phase current demand V L N Phase to neutral voltage V L L phase to phase voltage Display when non is selected Display when A upper limit is selected PF upper limit PF lower limit Hz upper limit Hz lower limit Harmonic current total RMS Value N phase harmonic current total RMS value H...

Страница 26: ...or the maximum scale value 0 step A AN DA DAN Harmonic current total RMS value N phase harmonic current total RMS value shows the percentage for the CT primary current V shows the percentage for the VT primary voltage or direct voltage The V for 1 phase 3 wire is the percentage for phase to neutral voltage Alarm monitoring is executed using twice the value which set upper lower limit alarm for the...

Страница 27: ...ing range Setting step Note 3 to 5 to 120 1 This is the percentage for the maximum scale value for the current 0 step 2 Motor starting current delay time After the motor starting current is detected maximum value update is not executed and an alarm is not generated for the delay time Motor starting current delay time oFF on 1s 3s 5s 10s 15s 20s 30s 45s 4min 5min SET SET SET DISPLAY 1min 1 5min 2mi...

Страница 28: ...ng function this setting item is not displayed 3 8 Setting Menu 7 No Settings Since there is no corresponding function this setting item is not displayed There is no setting if you set the setup menu 6 Setting menu There is no setting if you set the setup menu 7 Setting menu ...

Страница 29: ...ration time will be counting when display of current is not 0A 2 When voltage is set target for counting Operation time If min is selected the Operation time will be counting when display of voltage is not 0V Operation time threshold min 1 to 120 Setting step 1 min 20 to 120 Setting step 1 Set the setting menu number to 8 as shown in the right figure Setting menu Set on or off of the Operation tim...

Страница 30: ... methods and signs are changed Each measurement item display during power transmission Refer to page 42 Appendix Calculation methods of ME96SS Refer to page 68 Set IEC mode oFF on Normal mode IEC mode According to the setting flow page 14 save the changed contents or continue to the other setting menu Setting Menu Set the phase display Phase display setting 123 abc ...

Страница 31: ... Mode Press for 2 seconds to move the set values confirmation mode Select setting value confirmation menu number 9 Press to move to test mode For more information about how to use the Test Mode refer to page 36 or later SET SET SET The screen transitions and operations are the same as for Setting Menus 1 to 8 and CL Refer to Setting Menus 1 to 8 and CL pages 16 to29 Note Settings cannot be changed...

Страница 32: ...value Harmonic current Maximum value Harmonic voltage Maximum value The setting value will be reset to the default value The setting will be reset to the value corresponding to the phase wire system Note The settings will not return to the default values when the setting is switched only between 1N2 display and 1N3 display in the 1 phase 3 wire setting 3 12 Initializing All Settings When the follo...

Страница 33: ...tting method DISPLAY Upper stage item 1 Middle stage item 2 Lower stage item 3 Upper stage item 4 Middle stage item 5 Lower stage item 6 Upper stage item 7 Middle stage item 8 Lower stage item 9 Upper stage item 10 Middle stage item 11 Lower stage item 12 DISPLAY DISPLAY DISPLAY Screen 4 1 Screen 4 4 Screen 4 3 Screen 4 2 DISPLAY Upper stage A Middle stage V Lower stage Wh Upper stage PF Middle st...

Страница 34: ...t power apparent energy VT direct voltage DISPLAY Returns to the setting for the upper stage of the display 4 1 PHASE Continued form the previous page 5 Set the display of the display 4 2 Select yES by or and press When you do not want to display the display 2 select no and press 6 Set the upper stage of the display 4 2 to PF Select PF by or and press 7 Set the upper stage of the display 4 2 to W ...

Страница 35: ... 4 wire so just press SET Phase wire system Setting is P01 so just press SET Display pattern The factory default setting is No VT so just press SET VT direct voltage selection The factory default setting is 220 380V so just press Direct voltage The factory default setting is 5A so just press SET CT secondary current Set to 200A and then press SET CT primary current The factory default setting is 5...

Страница 36: ...U baud rates The factory default setting is EVEn even so just press SET MODBUS RTU parity The factory default setting is 1 so just press SET MODBUS RTU stop bit Set the setting menu number to End and then press SET Setting menu Press SET again The changed setting are determined End screen Measurement begins according to the settings you changed Operation mode SET SET SET SET SET SET ...

Страница 37: ...or checking with the host system 2 to 5 No function Test Procedure Press for 2 seconds to move to the set value confirmation mode Select setting value confirmation menu number 9 by and Press to move to test mode Execute tests using test menu 1 Refer to pages 37 Test Mode Flow Note The screen momentarily turns off Test menu 2 No function Test menu 3 No function Test menu 4 No function Test menu 5 N...

Страница 38: ...splay pattern The maximum minimum value can be displayed Cyclic display cannot be executed Button operation Operation Function Press Switches the display screen Press Switches the phase Press Moves or returns to the maximum minimum value screen Press or Switches the analog bar graph element Press and together for at least 2 seconds Change the unit of Wh Press Return to the test menu Note When exec...

Страница 39: ...al PHASE PHASE PHASE PHASE PHASE PHASE PHASE PHASE Current phase 1 Active Power phase 1 Voltage phase 1N Current phase 2 Active Power phase 2 Voltage phase 2N Current phase 3 Active Power phase 3 Voltage phase 3N Current average Active Power total Voltage average line to line Current phase 1 Active Power phase 1 Voltage phase 12 Current phase 2 Active Power phase 2 Voltage phase 23 Current phase 3...

Страница 40: ...ph of average value or total value appear instead of Upper Middle and Lower The bar graph cannot be displayed in the following cases When active energy is selected When a line without measurement display is selected Harmonics Display 1 LN LL does not appear Example Lower element V displayed on bar graph Example PF displayed on bar graph 1 For 3 phase 4 wire 2 For 3 phase 3 wire 1 phase 3 wire 3 Fo...

Страница 41: ...armonic current Harmonic voltage 3 phase 3 wire 3CT 31 phase 2CT 2 phase 31 phase 1 phase 3 wire 1N2 display N phase 12 phase 1N3 display N phase 13 phase Note 1 Before shifting to the cyclic display change screen the display flickering 3 times Note 2 In the cyclic display drawing number is not displayed Note 3 In the maximum value and the minimum value display cyclic display is not available PHAS...

Страница 42: ...e switch Press for 2 seconds Switches to measurement item cyclic display Press for 2 seconds Switches to phase cyclic display Clear the maximum minimum value On the maximum minimum value display screen press the for 2 seconds to clear the maximum minimum value for the displayed measurement item to the present value On the maximum minimum value display screen press the and together for 2 seconds to...

Страница 43: ... 2 seconds the measured values of Wh will be reset When the password protection setting is enabled Wh will be reset after you enter the password Also you can clear Wh values by communication function In this case the password is not necessary Note 1 This is effective only in the instantaneous value display Each measurement item display during power transmission The following table shows the symbol...

Страница 44: ...of the input I about three times more than the time to is needed The demand value is the measurement display value with the above time characteristics and it shows the overall average within the demand time The demand value changes over a relatively long time so it is not affected by input changes within a short time Therefore this is good for monitoring transformer overload Ⅰ Measurement display ...

Страница 45: ...neration Flickering Flickering Flickering Alarm retention On Flickering Flickering Alarm cancellation On On On Note 2 When the backlight flickering setting is set to ON flicker during alarm generation the backlight also flickers when an alarm is generated Note 3 On the maximum minimum value display screen the present value middle of the digital display and or blinks Monitoring phase for upper lowe...

Страница 46: ...t to the target for counting operation time AUX A and V and displayed as the load operation time To display the operation time the operation time display setting should be configured in advance The operation time is counting even if operation time display setting is OFF For setting of the operation time display refer to page 28 This is displayed when the button is pressed repeatedly in the operati...

Страница 47: ...o cancel the password in the field Please contact your supplier Password protection setting 1 Set a password protection 2 Change the password Note1 Select no and go back to the operation mode Note2 Select yES and the current password is displayed 3 Input a new password oFF on Not protected Protected no yES Not change Change Select a value of the blinking digit by pressing the or button from the hi...

Страница 48: ...2N Lower A3 V3N V AN P04 Upper A A1 V1N A ditto ditto ditto ditto ditto Middle V A2 V2N Lower W A3 V3N AN P05 Upper A A A1 V1N A ditto ditto ditto ditto ditto Middle V W A2 V2N Wh Lower Wh Wh A3 V3N AN P06 Upper A A1 DA1 V1N A DA ditto ditto ditto ditto ditto Middle DA A2 DA2 V2N Lower V A3 DA3 V3N AN DAN P07 Upper A A A1 DA1 V1N A DA ditto ditto ditto ditto ditto Middle DA DA A2 DA2 V2N Lower V W...

Страница 49: ... Wh Lower Wh Wh DA3 V31 P09 Upper A A A DA W ditto ditto ditto ditto Middle DA W V V V Wh Lower Wh Wh Wh Wh Wh P00 Upper Arbitrary Arbitrary Arbitrary Arbitrary ditto ditto ditto ditto Middle Arbitrary Arbitrary Arbitrary Arbitrary Wh Lower Arbitrary Arbitrary Arbitrary Arbitrary Note 1 When an additional screen is added a screen number is added Note 2 When 1 phase 2 wire only phase1 A1 DA1 is dis...

Страница 50: ...scale this is rounded off to the nearest whole number Specific power value for scale calculation Phase line type CT Secondary Rated voltage Specific power value 100 1 phase 2 wire 5A At direct input Line voltage 110V 0 5kW 220V 1 0kW 440V 2 0kW In the case with VT Line voltage 100V 110V 0 5kW 220V 1 0kW 1A At direct input Line voltage 110V 0 1kW 220V 0 2kW 440V 0 4kW In the case with VT Line volta...

Страница 51: ... STEP A unit kA unit STEP kA unit 1 1A 51 180A 101 25kA 2 1 2A 52 200A 102 30kA 3 1 5A 53 220A 103 32kA 4 1 6A 54 240A 104 36kA 5 1 8A 55 250A 105 40kA 6 2A 56 300A 7 2 2A 57 320A 8 2 4A 58 360A 9 2 5A 59 400A 10 3A 60 450A 11 3 2A 61 480A 12 3 6A 62 500A 13 4A 63 600A 14 4 5A 64 640A 15 4 8A 65 720A 16 5A 66 750A 17 6A 67 800A 18 6 4A 68 900A 19 7 2A 69 960A 20 7 5A 70 1000A 21 8A 71 1200A 22 9A ...

Страница 52: ...4800V 109 720kV 10 36V 60 5000V 110 750kV 11 40V 61 6000V 111 800kV 12 45V 62 6400V 112 900kV 13 48V 63 7 2kV 113 960kV 14 50V 64 7 5kV 114 1000kV 15 60V 65 8kV 115 1200kV 16 64V 66 9kV 116 1500kV 17 72V 67 9 6kV 117 1600kV 18 75V 68 10kV 118 1800kV 19 80V 69 12kV 119 2000kV 20 90V 70 15kV 120 2200kV 21 96V 71 16kV 22 100V 72 18kV 23 120V 73 20kV 24 150V 74 22kV 25 160V 75 24kV 26 180V 76 25kV 27 ...

Страница 53: ... 100MW 16 40W 66 6000W 116 800kW 166 120MW 17 45W 67 6400W 117 900kW 167 150MW 18 48W 68 7200W 118 960kW 168 160MW 19 50W 69 7500W 119 1000kW 169 180MW 20 60W 70 8000W 120 1200kW 170 200MW 21 64W 71 9kW 121 1500kW 171 220MW 22 72W 72 9 6kW 122 1600kW 172 240MW 23 75W 73 10kW 123 1800kW 173 250MW 24 80W 74 12kW 124 2000kW 174 300MW 25 90W 75 15kW 125 2200kW 175 320MW 26 96W 76 16kW 126 2400kW 176 3...

Страница 54: ...value 1 phase Max Phase Max Phase Max Phase 2 phase 3 phase N phase Distortion ratio 1 phase 2 phase 3 phase N phase Harmonic Voltage Note 1 RMS value 1 N phase 2 N phase 3 N phase 1 2 phase 2 3 phase 3 1 phase Distortion ratio 1 N phase Max Phase 2 N phase 3 N phase 1 2 phase Max Phase Max Phase 2 3 phase 3 1 phase Active energy Imported Operation time 1 2 Note 1 RMS values and Distortion ratios ...

Страница 55: ... upper limit of the possible display range 9999 the upper limit of the possible display range 9999 is displayed Power factor PF 1 0 for total when the current and the voltage are 0A and 0V for all 3 phases 1 0 for each phase when the current of phase n is 0A or the voltage of phase n is 0V where n 1 2 or 3 Frequency Hz When the input voltage of phase1 is low voltage will be displayed Input 22V or ...

Страница 56: ...ver 100 Such as measurement of the inverter secondary side output Please check the measured item The current measured by another measurement instrument such as a clamp meter is different from the current measured by this instrument More than the tolerance If another measurement instrument uses the average method for measuring the measurement instrument used will have a larger error when the AC det...

Страница 57: ...56 Installation 1 Dimensions ME96SSEA MB ...

Страница 58: ...the panel Before starting operation remove the sheet When removing the sheet the LCD may illuminate due to static electricity but this is not a product failure After a while the LCD goes off as it naturally discharges electricity Mounting position To mount the product to the edge of the panel check the space for wiring work before determining the mounting position Attach the mounting brackets to t...

Страница 59: ...8N m Outer Diameter For M3 screw with an outer diameter of less than 6 0mm 2 Wiring of the main unit Be sure to securely tighten the terminal screws to the terminal block CAUTION Please do not connect three or more electric wires to one terminal This can cause heat and fire due to imperfect contact If you are using bare crimped terminals provide the insulation needed to cover exposed live parts an...

Страница 60: ...tions to the connection terminals are tight Electrical wires must be properly tightened to the connection terminal Otherwise heat and measurement errors may be caused Do not forget wiring of C1 C2 and C3 for pass When the L side of CT circuit is common wire it is necessary to short circuit C1 C2 and C3 terminal of this device Do not use improper electrical wires Make sure that the electrical wires...

Страница 61: ...3 wire type max AC220V L N 440V 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 or a circuit of a transformer of a 1 phase 2 wire type the maximum rating is AC220V In case of a circuit which is wired from a 3 phase 4 wire type the star connection of a 3 phase...

Страница 62: ... For low voltage circuits grounding the secondary side of VT and CT is not t necessary Auxiliary power supply AC100 to 240V or DC100 to 240V Fuses 0 5A Some MODBUS RTU equipment doesn t have SG In this case the wiring between SG is unnecessary Note 1 For low voltage circuits grounding the secondary side of VT and CT is not t necessary 3 phase 4 wire type With VT 3 phase 4 wire type Direct input ...

Страница 63: ...een SG is unnecessary Note 1 For low voltage circuits grounding the secondary side of VT and CT is not t necessary Note 2 Do not connect to NC terminal Auxiliary power supply AC100 to 240V or DC100 to 240V Fuses 0 5A Some MODBUS RTU equipment doesn t have SG In this case the wiring between SG is unnecessary Note 1 For low voltage circuits grounding the secondary side of VT and CT is not t necessar...

Страница 64: ...ary Note 1 For low voltage circuits grounding the secondary side of CT is not t necessary Auxiliary power supply AC100 to 240V or DC100 to 240V Fuses 0 5A Some MODBUS RTU equipment doesn t have SG In this case the wiring between SG is unnecessary Note 1 For low voltage circuits grounding the secondary side of VT and CT is not t necessary 1 phase 2 wire type With VT 1 phase 3 wire type ...

Страница 65: ...rotective earth conductor Earth the terminal with less than 100 ohm of earth resistance Otherwise there will be a false operation Note for MODBUS RTU Note 1 Use the shielded twisted pair cable Recommended cables Refer to page 66 2 To the units at both ends of the MODBUS RTU link the 120 ohm resistance has to be attached This instrument can perform a 120 ohm termination by short circuiting the term...

Страница 66: ... of display digits Upper stage display 6 digits Middle stage display 6 digits Lower stage display 6 digits A DA V W PF 4 digits Hz 3 digits Wh 9 digits 6 digits or 12 digits possible Harmonic total distortion ratio 3 digits Harmonic RMS value 4 digits Operation time 6 digits Bar graph 21 Segment Bar graph 22 Segment Indicator Display updating time interval 0 5s 1s Communication Specification MODBU...

Страница 67: ...ps and Short Interruptions EN61326 1 EN61000 4 11 Safety Europe CE as per EN61010 1 U S and Canada cRUus as per UL61010 1 IEC61010 1 Installation Category Ⅲ Measuring Category Ⅲ Pollution Degree 2 3 Specifications of MODBUS RTU Communication Item Specifications Physical interface RS 485 2wires half duplex Protocol RTU Binary data Synchronization method Start stop synchronization Network topology D...

Страница 68: ...TEP 3 3 Power maximum scale 4000W 0 STEP 3 3 1 Single Double deflection Single deflection 3 5 Power factor scale 0 5 0 5 to 1 to 0 5 3 7 Harmonics display oFF 4 4 1 Model name option code Model name 4 2 Version display Version 4 3 Back light brightness 3 4 4 Back light auto off Auto Auto off 4 5 Display update time 0 5s 5 5 1 Alarm item 1 non 5 1 1 Alarm value 1 5 2 Alarm item 2 non 5 2 1 Alarm va...

Страница 69: ...l current N i i i I 1 N 0 k 2 k 3 k 2 k 1 N Lp N r m s voltage N v V 1 N 0 k 2 k pN pN Lp Lg r m s voltage N v v V 1 N 0 k 2 k pN k gN pg Active power for phase p 1 N 0 k k p k pN p i v N 1 P Power factor for phase p 2 p 2 p p p Q P P PF p p p S P PF Refer to page 42 for the sign Total active power 3 2 1 P P P P Total power factor 2 2 Q P P PF S P PF Refer to page 42 for the sign ...

Страница 70: ...9F Gangseo Hangang xi tower A 401 Yangcheon ro Gangseo gu Seoul 07528 Korea 82 2 3660 9573 Laos AROUNKIT CORPORATION IMPORT EXPORT SOLE CO LTD SAPHANMO VILLAGE SAYSETHA DISTRICT VIENTIANE CAPITAL LAOS 856 20 415899 Lebanon Comptoir d Electricite Generale Liban Cebaco Center Block A Autostrade Dora P O Box 11 2597 Beirut Lebanon 961 1 240445 Lithuania Rifas UAB Tinklu 29A LT 5300 Panevezys Lithuani...

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