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KW1M-H Eco-POWER METER

39

5.5 Demand function

(Japanese demand)

A demand function is a function which presumes the average power for every 30 minutes time span,
and it judges for every minute.
This works demand monitoring for electric power input by CT or pulse. In order to use demand
monitoring by pulse input, input pulse that meet the specifications of 8.2.3.
It outputs demand alarm according to the setting conditions.

Please use this simple demand function as your standard. The value is not guaranteed.

Caution

(1)Definition of demand

It is demand measurement in order to use by yourself as your standard.

(2) The time used by this function is the time set up with Eco-POWER METER.
Therefore, it is different from the demand meter controlled by an electric power company.

◆

Output demand alarm and Display demand alarm
When present demand or estimated demand exceeds the demand setting value, it output and it
displays.

[Present demand or Estimated demand

≧

Demand setting value]

It keeps alarm output and alarm indication for 1 minute, after that,

[Present demand or Estimated demand

≧

Demand setting value] -> Keep alarm

[Present demand or Estimated demand

＜

Demand setting value] -> Clear alarm

When you set the hysterisis with demand alarm setting mode 2, the timing of clear alarm is as below.
Ex.) Demand setting value: 100kW Hysterisis: 10%

When the present demand or the estimated demand exceeds 100kW, it output alarm and keep
the alarm for 1 minute. After that if the current demnd or the estimated demand exceeds 90kW, it
keep the alarm. If it is below 90kW, it clears alarm.
When you set the hysterisis, it can avoid frequent alarm output ON/OFF near a demand target
value.

【

Alarm output

】

・

It output with pulse output terminal.(open collector)

・

It output only when ‘DEM’ is set with unit for pulse output setting mode.

・

It doesn’t output alarm if demand setting value is set to ‘0.00’kW.

【

Alarm indication

】

・

’d’ is blinking on the bottom line of the display.

・

It indicates ‘d’ when the present demand or the estimated demand exceeds the setting value,

regardless the setting of unit for pulse output setting mode.

・

It doesn’t output alarm if demand setting value is set to ‘0.00’kW.

Lighting OP.

indicator

Blinking ‘D’

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Summary of Contents for KW1M-H

Page 1: ......

Page 2: ...vice What to do Measure Power Mount Connection Settings Count pulse output from other device Output Alarm Log data Read out log data Wire the main unit Connect the current transformer CT Wire output line Collect data via RS485 Prepare SD memory card Wire communication line Wire input line Power on the main unit Set calendar timer and initialize memory of main unit MODE4 Set the parameter for pulse...

Page 3: ... the maximum of the characteristics and performance that are assured in these specifications Do not dismantle or remodel the product It could lead to abnormal exothermic heat or smoke generation Do not touch the terminal while turning on electricity It could lead to an electric shock Use the external devices to function the emergency stop and interlock circuit Connect the wires or connectors secur...

Page 4: ...roduction Thank you very much indeed for purchasing KW1M H Eco POWER METER In this manual we explain the usage of KW1M H Eco POWER METER in detail Please use it correctly after understanding the content enough ...

Page 5: ...surement 22 4 2 3 MODE3 Mode for setting of each parameter for serial communication 25 4 2 4 MODE4 Mode for setting of each parameter for optional function 27 4 2 5 Remove SD memory card 28 Chapter 5 Various Functions 31 5 1 LOCK mode 31 5 2 Pulse output function 31 5 2 1 Output depends on integrated electric power 31 5 2 2 Instantaneous electric power alarm 31 5 2 3 Current alarm 31 5 2 4 Stand b...

Page 6: ...hile communication 58 Chapter 7 Communication 59 7 1 Communication Procedures 59 7 2 Communication timing 59 7 3 MEWTOCOL Communication 60 7 3 1 Overview of MEWTOCOL COM RS485 60 7 3 2 Data Register List MEWTOCOL 61 7 3 3 Error Codes 63 7 3 4 Command 63 7 4 MODBUS RTU Communication 65 7 4 1 Overview of MODBUS RTU 65 7 4 2 Data Register List 68 Chapter 8 Specifications 71 8 1 Main unit 71 8 2 Input...

Page 7: ...form wiring or installation with a live line It may also lead to circuit burnout or fire by way of the secondary CT side opening Installation Installation and wiring must be performed by expert personnel for electrical work or electric piping The power supply terminal and voltage input terminal of the main unit is common Therefore if additional noise effects the power supply line incorrect measure...

Page 8: ...not turn on the power supply or input until all wiring is completed Before power on Please note the following points when turning on power at the first time Confirm there are neither wiring rubbish nor especially an electrical conduction when installed Confirm neither the power supply wiring the I O wiring nor the power supply voltage are wrong Tighten the installation screw and the terminal screw...

Page 9: ......

Page 10: ... input is available for Ver 1 20 or more Note AKW1121B and AKW1121 are not compatible Please be aware that only AKW1121B and AKW4x0xB CT can be used together 1 1 2 Option Dedicated Current Transformer CT Clamp on type Product name Rated primary current Connector color Model No Dedicated current transformer for 5A 50A 5A 50A Blue AKW4801B White AKW4801C Dedicated current transformer for 100A 100A B...

Page 11: ...ee of charge Power display tool KW View It makes graph by using data from Eco POWER METER Download from our website Free of charge Note Members registration is required to download 1 1 4 Firmware For using the additional functions of KW1M H Functions Supported version 600A CT input Ver 1 05 or more Simple demand measurement Ver 1 10 or more Demand measurement by pulse input Clock correction functi...

Page 12: ...actor 0 00 to 1 00 Identify leading phase and lagging phase Within the range of phase angle θ 90 to 90 degree Frequency Hz 47 5 to 63 0 Hour meter ON time hour 0 0 to 99999 9 OFF time Pulse counter 0 to 999999 Integrated electric power converted by pulse kWh MWh 0 000kWh to 9999 99MWh Demand 2 Present demand kW 0 00 to 9999 99 Estimated demand kW 0 00 to 9999 99 Ratio of estimated demand 0 0 to 99...

Page 13: ...ey SET key SHIFT key ITEM key 2 2 Key s Functions Key Functions MODE Use to shift setting mode SET Use to set each value entered Reset stand by alarm while output the alarm only available while output the stand by alarm SET continuous press 3 sec All keys locked Release lock mode while in lock mode SHIFT To select measured value display While monitoring To select setting value While setting mode I...

Page 14: ...VAC 0 220V 3W Phase voltage Three phase three wire 0 440VAC 0 440V 3 Line voltage Three phase four wire 0 254VAC 0 254V 3N Phase voltage Caution for Wiring 1 Terminal fastening torque should be 0 5 to 0 6N m In case of using a crimping terminal use it with insulating sleeve applicable to M3 screw 2 This has no built in power switch circuit breaker for power supply part To protect the device it is ...

Page 15: ...ot necessary with low voltage circuit When measuring a load with rated input voltage 100 200V system 400V system Single phase two wire system One current transformer CT is required Do not wire terminals They are connected internal Single phase three wire Three phase three wire system Two current transformers are required Do not wire terminal It is connected internal Three phase four wire system Th...

Page 16: ... connecting CT connect the secondary side to the terminal of the main unit first and after that wire the primary side to a load electric wire Incorrect order might cause an electric shock or break CT The CT has polarity Wire correctly according to the K and L marks Wrong direction can t measure correctly When closing clamp on type CT check that there is no foreign materials on the divided face And...

Page 17: ...ndary side of the CT secondary side current 5A CT direction K L should be set for the commercial CT direction Set the CT secondary side current 5A and the dedicated CT for 5A approximately 1m apart If the two CTs are set too close each other it may not measure accurately due to magnetic field interference Connection example With Ammeter etc Without Ammeter Secondary current Breaker Dedicated CT fo...

Page 18: ...ectric wire tube individually If it is long it may not work correctly due to floating capacitance of wire Note Operating power supply input part and measured voltage input are not insulated to pulse input parts So the input equipment must have the power supply transformer in which the secondary side is not grounded with the primary and secondary sides insulated in order to prevent interference of ...

Page 19: ... ground one end Use a class D dedicated earth for grounding Do not share a ground with other earth lines Fig 1 Be sure to connect with daisy chain the RS485 transmission line between each unit Do not use a splitter Fig 2 With a terminal station RS485 E No 10 and RS485 No 9 should be shorted E terminal is not SG signal ground terminal Do not ground shielded cable Fig 1 Fig 2 Power supply for Load P...

Page 20: ...y the following conditions 1 Pulse output part secure only basic insulation In order to secure reinforced double insulation demanded by EN 61010 1 IEC61010 1 secure basic insulation or more with load side and reinforced double insulation with communication system side 2 Provide the voltage input part with an EN60947 1 or EN60947 3 compliant circuit breaker The breaker that connects to the voltage ...

Page 21: ...YST Refer to the next page SET CT type CT T SET When select 5A Primary side current of CT CT 1 Remove SD memory When select other than 5A SET card Voltage range VOLT SET SET VT ratio VT SET Current for time measurement HM A SET Cutoff current CUTA SET Unit for pulse output PL P When select Values or DEM When select AL P SET When select AL C SET When select AL S SET When select Cnt SET or P THR SET...

Page 22: ...ET SET SET Pulse type P SEL When select CT Transmission format FMT Log cycle LOG 2 When select kWh When select SET PULSE SET SET Pulse rate PM kW Pulse constant value PM PL Response time RESP Calendar timer CAL SET SET SET SET Clock correction CLK A Initialize memory of main unit S FMT SET SET Reference frequency FREQ 3 SET Monitor 1 When you select P THR at unit for pulse output setting mode in M...

Page 23: ... 0 001 value Power alarm 9999 99 Clock correction AUTO Current alarm 100 0 Reference frequency 50 0 Stand by alarm 1 100 0 Mode 3 Stand by alarm 2 0 Item Initial value Preset value 0 Protocol MEWTOCOL Demand alarm 1 0 00 Station number 1 Demand alarm 2 0 Transmission speed 19200 Demand alarm 3 10 Transmission 8bit o Electricity rate 10 00 format Conversion value 0 410 Response time 1 Mode 4 Item I...

Page 24: ...ured existing CT is 400A secondary side is 5A set to 400 Voltage range setting mode VOLT Mode defines voltage range of Eco Power Meter Select from 400 200 When it measures load of 400V system select 400 When it measures load of 100 200V system select 200 In case measuring the load of 100 200V system with selecting 400 the resolution will be down Select the correct voltage range VT setting mode VT ...

Page 25: ...t used for alarm output Ratio for the rated current It is set the range of 1 0 to 100 0 Stand by alarm setting mode 1 AL S1 Only when AL S is selected on unit for pulse output setting mode Mode defines the ratio of current used for threshold value to judge stand by power Ratio for the rated current It is set the range of 1 0 to 100 0 Stand by alarm setting mode 2 AL S2 Only when AL S is selected o...

Page 26: ...m and it doesn t indicate alarm When DEM is set with unit for pulse output setting mode it outputs if all conditions DEM1 2 and 3 are satisfied And it indicates d on the bottom line of the display regardless the setting of unit for pulse output setting mode Refer to 5 5 Electricity charge setting mode RATE Mode defines electricity charge ratio used as a standard per 1kWh It can be set the range of...

Page 27: ...M SHIFT to change 50 100 250 400 600 5 50 100 250 400 600 5 SET Primary side current of CT setting mode It is only when 5A is selected on CT type setting mode Set primary side current of CT using ITEM SHIFT If measured CT is 100A 5A set to 100 If 5A is measured set to 5 1 to 4000 Initial 5 SET Voltage range setting mode Press ITEM SHIFT to change 400V 200V 400V 200V SET VT ratio setting mode Set V...

Page 28: ... setting mode Press ITEM SHIFT to change 0 001 0 01 0 1 1 10 100 AL P Power alarm AL C Current alarm AL S Stand by alarm Cnt Count output DEM Demand alarm P THR Pulse through 0 001 0 01 0 1 1 10 100 AL P AL C AL S Cnt DEM P THR SET Power alarm setting mode It is only when AL P is selected on unit for pulse output setting mode Set power for alarm using ITEM SHIFT 0 00 to 9999 99 SET Current alarm s...

Page 29: ... when passing the setting time with the stand by power The alarm can be reset by pressing SET with the instantaneous electric power display After reset the alarm start to monitor the stand by power again SET Preset value setting mode It is only when Cnt is selected on unit for pulse output setting mode Set preset value to output using ITEM SHIFT 0 to 999999 SET Demand alarm setting mode 1 Set targ...

Page 30: ... Electricity charge setting mode Set the rate per 1kWh using ITEM SHIFT 0 00 to 99 99 Initial 10 00 SET Conversion factor setting mode Set the conversion factor per 1kWh using ITEM SHIFT 0 000 to 9 999 Initial 0 410 SET Monitor ...

Page 31: ... Use pulse constant value of pulse output device to use Pulse rate setting mode PM kW Only when kWh is selected on Unit for pulse output setting mode Mode defines pulse rate of electric power per 1 pulse It can be set the range of 0 001 to 100 000kWh pulse Initial 1 000 Pulse constant value setting mode PM PL Only when PULSE is selected on Unit for pulse output setting mode Mode defines a pulse co...

Page 32: ...pplied to count value and preset value SET Power input type setting mode Press ITEM SHIFT to change CT PM CT CT input PM Pulse input SET Pulse type setting mode It is only when PM is selected on power input type setting mode Press ITEM SHIFT to change kWh PULSE kWh PULSE SET Pulse rate setting mode It is only when kWh is selected on pulse type setting mode Set the rate per 1pulse using ITEM SHIFT ...

Page 33: ... correction setting mode Set the reference frequency using ITEM SHIFT 47 5 to 63 0 Initial 50 0 SET Monitor How to set to monitor demand using input pulse by a pulse inspector example Service pulse 50 000pulse kWh CT ratio 200 5 A VT ratio 6600 110 V 60 A MODE1 CT type 5 Primary side current of CT 200 VT ratio A above result MODE2 Power input type PM Pulse type PULSE Pulse constant value 50000 ...

Page 34: ...00 bps Transmission format setting mode FMT Mode defines serial communication RS485 transmission format Data length Parity Define the transmission format according to the master s PLC etc Select from 8bit o 7bit n 7bit E 7bit o 8bit n 8bit E n none means parity is not available E Even means parity is even number o odd means parity is odd number With MODBUS RTU protocol it works only with 8bit Resp...

Page 35: ...s 38400bps 57600bps 115200bps 2400bps 4800bps 9600bps SET Transmission format setting mode Press ITEM SHIFT to change 8bit o 7bit n 7bit E 7it o 8bit n 8bit E n not available E even number o odd number 8bit o 7bit n 7bit E 7it o 8bit n 8bit E SET Response time setting mode Set the response time using ITEM SHIFT 1 to 99ms SET Monitor ...

Page 36: ...LOG Only when ON is selected for T3 type3 on saved file type setting mode Mode defines save cycle for type 3 file Select from 1 5 10 15 30 60 min It saves measured data with selected cycle Calendar timer setting mode CAL Mode defines the year month day and time Set year month date hour minute second You can set the range of 2000 Jan 1st 00 00 00 to 2099 Dec 31st 23 59 59 Do not set the false date ...

Page 37: ...appeared you can remove SD memory card During SD ok is displayed it doesn t write log data to SD memory card If SD memory card is removed during SD ok is displayed it returns to monitoring display SD EJECT is displayed only when SD memory card is inserted Do not remove SD memory card until when SD ok is displayed Remove SD memory card flow chart Monitor MODE continuous press EJECT Lighting SET Rem...

Page 38: ...e SET Saved file type selection mode Press ITEM SHIFT to change ON OFF Initial ON In order to write to SD memory card with the displayed file type set to ON There are 3 types and you can select ON or OFF for each type T1 type1 Instantaneous value file ON Write data of the latest 1 month OFF Not write Cycle is fixed to 1 hour ON OFF SET T2 type2 Difference value file ON Write data of the latest 1 m...

Page 39: ...linking Set year 01 Blinking Set month 01 Blinking Set day 00 Blinking Set hour 00 Blinking Set minute left present right set 00 Blinking Set second SET Initialize memory of main unit Press ITEM SHIFT to change OFF ON Initial OFF Select ON and press SET and memory is initialized OFF ON Initialize memory of main unit at the below timing if it is not initialized it may not display log data correctly...

Page 40: ... order to notice When it falls below the output turns off 5 2 3 Current alarm When it exceeds the setting current ratio pulse output transistor output turns on in order to notice When it falls below the output turns off 5 2 4 Stand by power alarm When it detects stand by power current of the measured load pulse output transistor output turns on in order to notice Set current C and stand by time T ...

Page 41: ... value is changed to the value less than the count value counting will continue until it reaches full scale returns to 0 and then reaches the new preset value 2 If the preset value is changed to 0 it will not count up at start with 0 It counts up when the counting value comes to 0 again after reach to full scale However output is OFF if count value or preset value is changed 3 When the count value...

Page 42: ...type to save with saved file type selection mode mode4 2 Shift to power monitoring mode display or calendar display 3 Insert SD memory card 4 It writes data according to the setting of saved file type selection mode File type 1 2 Latest 1 month File type 3 Latest 5760 records max 4 days data Saved cycle 1min How to write data of the past month 1 Set ON for file type to save with saved file type se...

Page 43: ...mory card insert a dummy card to protect in order to avoid dust or something else Display during writing SD ACCESS is displayed during writing After completing the writing shift to monitor display When there isn t enough capacity in SD memory card or SD memory card is unwritable error display will appear alternately During writing Display of writing error Notice During SD ACCESS is displayed do no...

Page 44: ...ata 60 minutes fixed at the end of each hour 3 Record number Record number for 1 file 24 records fixed 4 Logging data Logging data of the same timing 11 data fixed From column C to M Integrated electric power Instantaneous electric power R current S current T current R RS voltage S RT voltage T TS voltage Power factor Frequency Count value A B C D E F G H 1 Date Time 2 KW1M KW1M KW1M KW1M KW1M KW1...

Page 45: ...y the beginning Row 5 DIFFERENCE Shows difference value Row 6 US32 FLT Unsigned integer 32 bit Row 7 kWh Unit based on the target address 2 Logging trigger Timing to log data 60 minutes fixed at the end of each hour 3 Record number Record number for 1 file 24 records fixed 4 Logging data Logging data of the same timing 2 data fixed From column C to D Integrated electric power Count value File type...

Page 46: ...METER Based on the unit setting File name syunji 090401_010000_TRG csv Condition of saved file hour minute second 01 00 00 year month day April 1st 2009 year month day hour minute second in file name is the data of the beginning record Condition of saved file Recorded letter File write trigger occurs TRG File type 2 Difference value When you insert SD memory card at 13 20 April 3rd 2009 sabun 0904...

Page 47: ...01_20090403140000 csv Data from power on to 14 00 April 3rd 2009 Folder name LOG Fixed Unitlog Fixed File name unitlogNo01_20090403140000 csv Saved year month day hour minute second 14 00 00 April 3rd 2009 Station number of Eco POWER METER unitlogNo01_BK20090403130000 csv Saved year month day hour minute second 13 00 00 April 3rd 2009 Recognition mark of same day Every time when you insert SD memo...

Page 48: ...m output and alarm indication for 1 minute after that Present demand or Estimated demand Demand setting value Keep alarm Present demand or Estimated demand Demand setting value Clear alarm When you set the hysterisis with demand alarm setting mode 2 the timing of clear alarm is as below Ex Demand setting value 100kW Hysterisis 10 When the present demand or the estimated demand exceeds 100kW it out...

Page 49: ...mand span it will stop the measurement until next demand span starts Working outline Present demand PV It shows demand value from the time when demand span starts to present time Calculation CT input calculated by Eco POWER METER Present demand kW Integrated electric power until present from the start 60 min 30 min Demand span Integrated electric power until present from the start 2 Pulse input in...

Page 50: ... It counts the frequency of the measured voltage connected to P1 P0 terminals as reference frequency Therefore when P1 P0 terminals are not connected or it set OFF for clock correction function it doesn t correct the clock Caution In order to correct the clock it is always monitoring if the reference frequency is stable or not If the frequency is not satisfied below conditions it judges it is unst...

Page 51: ...ode SET ITEM Power Monitoring mode SET SHIFT Demand monitoring mode Outline for the Working of Power Monitoring Mode Display Integrated electric power ITEM Instantaneous electric power ITEM Current R current SHIFT S current SHIFT T current 1 ITEM Voltage R RS voltage SHIFT S RT voltage SHIFT T TS voltage 2 ITEM Electricity charge ITEM CO2 Conversion value ITEM Power factor ITEM Frequency ITEM Hour...

Page 52: ... R voltage 1P3W system R current T current R voltage T voltage P1 P0 P2 P0 3P3W system R current S current T current RS voltage P1 P0 RT voltage P1 P2 TS voltage P2 P0 3P4W system R current S current T current R voltage P1 P0 S voltage P2 P0 T voltage P3 P0 3 It is displayed when PM is selected with power input type setting mode ...

Page 53: ...HIFT ITEM Last day s log data SHIFT SHIFT ITEM 2 day ago s log data SHIFT SHIFT ITEM 3 day ago s log data Press SHIFT to shift last day 2 day ago 3 day ago Press ITEM during press SHIFT to shift 1 day later 2 day later ITEM Hourly integrated electric power Latest 24 hours Current hour log data SHIFT SHIFT ITEM 1 hour ago s log data SHIFT SHIFT ITEM 2 hour ago s log data SHIFT SHIFT ITEM 3 hour ago...

Page 54: ...automatically After reaching the full scale 99999 9kWh the value reverts to 0 00kWh but continues to measure How to reset Hold down SET and press MODE makes integrated electric power clear Reset SET ON OFF MODE ON OFF How to display with 9 digit Sample Integrated electric power can be displayed with 9 digit Press SHIFT and ITEM simultaneously at integrated electric power display kWh MWh and integr...

Page 55: ... R current Skip Skip Single phase three wire R current Skip T current Three phase three wire R current S current T current Three phase four wire R current S current T current 6 2 4 Voltage It displays the voltage value of the load Press SHIFT to change voltage R RS voltage S RT voltage and T TS voltage Before start measuring select phase and wire system according to the measured load When it sets ...

Page 56: ...999999 will be displayed 6 2 6 Carbon dioxide conversion value It displays the standard conversion value for the integrated electrical power Sample CO2 conversion value kg CO2 When the value exceeds 999999 will be displayed 6 2 7 Power factor It displays power factor of the load Sample Lagging phase Leading phase How to calculate power factor Eco POWER METER displays power factor by calculating as...

Page 57: ...res as OFF time When load current is exceeded to the setting current for time measurement HM A it measures as ON time Current for time measurement HM A is set to under cutoff current CUTA all current is measured as OFF time Current flow of CT1 Load ON time h 0 HM A CUTA Ratio of load current Measured as OFF h Measured as ON h After reaching the full scale 99999 9h the value reverts to 0 0h but con...

Page 58: ... power converted value measured until then Sample Pulse counter Electric power converted by pulse kWh Prescale 0 01 Electric power converted by pulse MWh Pulse counter is counted and displayed 0 to 999999 for pulse counter After reaching the full scale 999999 the value reverts to 0 but continues to measure Electric power converted by pulse is measured and displayed from 0 000kWh to 9999 99MWh The ...

Page 59: ...og data for the latest 18 months Press SHIFT to shift 1 month ago 2 month ago 3 month ago Select month and it displays monthly integrated power after 2 seconds Press ITEM with holding down SHIFT to shift 1 month later 2 month later 3 month later Period of month is designated as below table The displayed unit is kWh Display LM 0904 LM 0903 LM 0902 Measuring period From to From to From to 2009 April...

Page 60: ... integrated power after 2 seconds Press ITEM with holding down SHIFT to shift 1 day later 2 day later 3 day later Period of day is designated as below table The displayed unit is kWh Display LM D 0410 LM D 0409 LM D 0408 Measuring period From To From To From To April 10th 00 00 00 April 10th 23 59 59 April 9th 00 00 00 April 9th 23 59 59 April 8th 00 00 00 April 8th 23 59 59 Sample April 10th kWh ...

Page 61: ... displays hourly integrated power after 2 seconds Press ITEM with holding down SHIFT to shift 1 hour later 2 hour later 3 hour later Period of hour is designated as below table The displayed unit is kWh Display LH 1510 LH 1509 LH 1508 Measuring period From To From To From To 15th 10 00 00 15th 10 59 59 15th 09 00 00 15th 09 59 59 15th 08 00 00 15th 08 59 59 Sample 15th 10 00 kWh 15th 9 00 kWh 15th...

Page 62: ... displays the end time of the demand span first and displays the estimated demand Demand setting value is set with DEM1 of mode 1 Example Present demand Estimated demand Demand setting value After 1 second After 1 second After 1 second The present demand is updated every 1 second the estimated demand is updated every 1 minute At present demand or estimated demand is displayed upper and lower lines...

Page 63: ...value 5 0kW ratio of estimated demand is 50 0 Example It displays when demand setting value is set to 0 00kW when the ratio is over 999 9 and for 1 minute after starting the demand span is displayed until when the next demand span starts when you change clock to before demand span or to next demand span or at power failure After 1 second ...

Page 64: ...last 7 days Press SHIFT to change the time Press SET to display demand value at time select display Press SET again to return the time select display Example After 1 second March 3 11 00 March 3 10 30 March 3 10 00 0 00 is displayed when there is no data for demand is displayed when demand value exceeds the range ...

Page 65: ...nth Press SET to display demand value at time select display Press SET again to return the time select display Example After 1 second March 2012 February 2012 January 2012 is displayed when the value exceeds the range 0 00 is displayed when there is no data for monthly max demand log and is displayed for the date The date for the max demand log ...

Page 66: ... the latest 13 months Press SET to display demand value at date display Press SET again to return the date display Example After 1 second Date is displayed when the value exceeds the range 0 00 is displayed when there is no data for max demand and is displayed The date for the max demand ...

Page 67: ...urns on when the unit power on Even if the display turns off the power indicator is lighting while a current flows to the unit Refer to Mode 4 setting 6 5 2 Indication while communication TX RX indicator is blinking while Eco POWER METER is under communication TX RX indicator POWER indicator ...

Page 68: ... sure to check that it receives the response from Eco POWER METER In order to improve the communication quality we recommend to send the transmission again Communication timing of RS485 Eco POWER METER Slave side When Eco POWER METER Slave starts transmission to RS485 communication line it is arranged so as to provide an idle status transmission period of about 1 to 99ms setting available before s...

Page 69: ... source AD H L Two digit decimal 01 to 99 ASCII codes Command messages contain a station number for Eco POWER METER that receives the message When FF ASCII code table is used however the transmission is a global transmission sent to all stations at once Note When a global transmission is sent no response to the command message is returned Block check code Bcc H L Two digit hexadecimal 00 to FF ASC...

Page 70: ...de current value when CT 5A 1A Unsigned 16bit 1 to 4000 R W DT00064 Power alarm value Instantaneous electric power 0 01kW Unsigned 32bit 0 to 999999 R W DT00065 DT00066 VT ratio 0 01 Unsigned 16bit 100 to 9999 R W DT00067 Current threshold for time measurement 0 1 Unsigned 16bit 1 to 1000 R W DT00068 Cutoff current 0 1 Unsigned 16bit 10 to 500 R W DT00069 Ratio for current alarm 0 1 Unsigned 16bit...

Page 71: ... R W DT00161 DT00162 Max counting speed Hz Unsigned 16bit 30 2000 R W DT00163 Auto off time min Unsigned 16bit 0 to 99 0 always on R W DT00170 R RS voltage 0 1V Unsigned 32bit 0 to 999999 R DT00171 DT00172 S RT voltage 0 1V Unsigned 32bit 0 to 999999 R DT00173 DT00174 T TS voltage 0 1V Unsigned 32bit 0 to 999999 R DT00175 DT00176 Instantaneous electric power 0 01kW Unsigned 32bit 0 to 999999 R DT0...

Page 72: ...nds Command name Code Explanation Read data area RD Reads the contents of data area Write data to data area WD Writes data to a data area Resister or Reset data monitored MD Resisters the data to be monitored Monitoring start MG Monitors a registered data Read status RT Reads the specifications of Eco POWER METER and error code if an error occurs RD Read data area Reads the contents of data area C...

Page 73: ...co POWER METER and error codes if an error occurs Command 101 100 R T 161 160 CR Normal response Read successful 101 100 R T 161 160 161 160 163 162 161 160 161 160 161 160 161 160 163 162 161 160 CR With this unit it responses 99 for Model code1 14 for Model code2 Word No 5 characters Word No 5 characters Bcc Destination Bcc Fixed 6 characters Source BCC Destination Bcc Source Destination Bcc Sou...

Page 74: ...e message Slave address 0 00H broadcast address can identify all slaves connected However slaves do not respond Function code Function code is command code for the slave to undertake the following action types Function code Contents 03 03H DT Read 06 06H DT 1 word write 16 10H DT several data write Function code is used to discern whether the response is normal acknowledgement or if any error nega...

Page 75: ...n a carry is generated as a result of the shift XOR is calculated by X of 3 and the fixed value A001H This is assumed as X If a carry is not generated go to step 5 5 Repeat steps 3 and 4 until shifting 8 times 6 XOR is calculated with the next data and X This is assumed as X 7 Repeat steps 3 to 5 8 Repeat steps 3 to 5 up to the last data 9 Set X as CRC 16 to the end of message in sequence from low...

Page 76: ...7H 3 5 idle characters 1 1 2 2 2 character number A response message from the slave in exception error status When number of data has been mistaken Function code MSB is set to 1 for the response message in exception error status 90H The exception code 03H Value out of the devise numbers is returned as contents of error Mistaken message example Command 3 5 idle characters Slave address 01H Function...

Page 77: ...CT type Rated A rms Unsigned 16bit 5H 5 32H 50 64H 100 FAH 250 190H 400 258H 600 03H 06H 10H 003DH LSB DT00061 Unit for Pulse output Unsigned 32bit 1H 1 0 001 AH 10 0 01 64H 100 0 1 3E8H 1000 1 2710H 10000 10 186A0H 100000 100 3E7H 999 Instantaneous electric power Values of 0040H 0041H 309H 777 Ratio for current alarm Values of 0045H 22B 555 Preset value for output Values of 009EH 009FH 14DH 333 R...

Page 78: ...file type 1 Unsigned 16bit 0 OFF 1 ON 03H 06H 10H 0052H DT00082 Saved file type 2 Unsigned 16bit 0 OFF 1 ON 03H 06H 10H 0053H DT00083 Saved file type 3 Unsigned 16bit 0 OFF 1 ON 03H 06H 10H 0064H LSB DT00100 Integrated electric Power 0 01kWh Unsigned 32bit 0H to 3B9AC9FFH 0 to 999999999 03H 06H 10H 0065H MSB DT00101 006BH DT00107 R current 0 1A Unsigned 16bit 0H to EA60H 0 to 60000 03H 006CH DT001...

Page 79: ...H 0 to 999999 03H 00AFH MSB DT00175 00B0H LSB DT00176 Instantaneous electric power 0 01kW Unsigned 32bit 0H to F423FH 0 to 999999 03H 00B1H MSB DT00177 00C8H LSB DT00200 Present demand 0 01kW Unsigned 32bit 0H to 5F5E0FFH 0 to 99999999 03H 00C9H MSB DT00201 00CAH DT00202 Demand remaining time Minute Unsigned 16bit 0H to 001EH 0 30 03H 00CBH LSB DT00203 Estimated demand 0 01kW Unsigned 32bit 0H to ...

Page 80: ...ure memory method EEPROM more than 100 000 overwrite Memory items Setting value Measuring value Size 75 x 90 x 50 mm Weight approx 180g without battery note1 Analog input terminals No 4 No 5 and No 6 8 2 Input Specifications 8 2 1 Electric power input Phase and wire system Single phase two wire system Single phase three wire system Three phase three wire system Three phase four wire system common ...

Page 81: ...t at 20 Temperature characteristics Within 1 0 F S 1 digit In case of 5 A CT mode within 1 5 F S 1 digit Range of 10 to 50 C rated input power factor 1 Frequency characteristics Within 1 0 F S 1 digit In case of 5 A CT mode within 1 5 F S 1 digit Frequency change 5 based on rated frequency rated input power factor 1 8 2 2 Pulse input Input mode Addition Fixed Max counting speed 2kHz 30Hz Select wi...

Page 82: ...stance 1200m max 1 Transmission speed 115200 57600 38400 19200 9600 4800 2400bps selectable with setting mode Transmission Format Data length 8bit 7bit selectable with setting mode 4 Parity Not available Odd number Even number selectable with setting mode Stop bit 1bit fixed Communication method Half duplex Synchronous system Asynchronous communication method Ending resistance approx 120Ω built in...

Page 83: ...grated electric power Latest 30 days Hourly integrated electric power Latest 24 hours Calendar timer Time accuracy 2 with clock correction Synchronize with frequency of measured voltage 3 without clock correction Monthly accuracy 240 seconds at 10 70 seconds at 25 240 seconds at 50 Backup contents by battery Time measurement and log data storage Battery life 4 About 2 years at 25 when no power 1 Y...

Page 84: ...a possibility to lose the saved data in SD memory card Please understand us beforehand we don t have any responsibility for loosing data or the other directly or indirectly failures 1 When user or someone else do mistake to handle with SD memory card 2 When static electricity and the electrical noise influence the SD memory card 3 When SD memory card is removed or power supply of main unit turns o...

Page 85: ...pulse input input pulse with applicable pulse width according to 8 2 2 Pulse input If other pulse is input it doesn t work the demand function correctly 2 Demand alarm When the present demand or estimated demand exceeds the setting value it notifies by the output and the indication You need to set DEM with unit for pulse output setting in order to output 3 In case of a power failure it stops monit...

Page 86: ...age CISPR11 class A CISPR11 class A EMS EN61326 1 Static discharge immunity EN61000 4 2 RF electromagnetic field immunity EN61000 4 3 EFT B immunity EN61000 4 4 Surge immunity EN61000 4 5 Conductivity noise immunity EN61000 4 6 Power frequency magnetic field immunity EN61000 4 8 Voltage dip Instantaneous stop Voltage fluctuation immunity EN61000 4 11 ...

Page 87: ... Approx 60g Approx 90g Approx 200g Approx 295g Approx 450g Through type Model No AKW4506B AKW4506C AKW4507B AKW4507C AKW4508B AKW4508C Primary side rated current 50A 100A 250A 400A 600A Secondary side rated Current 16 7mA 33 3mA 125mA 200mA 200mA Transform ratio 3000 1 2000 1 3000 1 Ratio error 1 0 F S Hole Dia mm φ17 φ36 Breakdown voltage initial AC1000V 1min Between through hole and output lead ...

Page 88: ...KW1M H Eco POWER METER 79 Chapter 9 Mounting 9 1 Dimensions 9 1 1 Main unit unit mm Panel cutout Please keep space that the thumb enters for the battery exchange at the left of the main unit about 30mm ...

Page 89: ... current time by calendar timer setting mode in order to use logging function 1 Remove the battery cover 2 Insert the connector and put into the case 3 Put the battery cover in Battery life is about 2 years we recommend exchanging battery about 2 years from the beginning of the use When battery has abnormal or battery power is reduced BATT is blinking in the lower line Please replace the battery a...

Page 90: ... Q3 How long do I extend CT cable A3 You can extend up to about 10 m with cable of AWG 22 or more We can t guarantee the specifications if you extend more than 10m Q4 How do you guarantee the accuracy of measurement with low current range A4 Up to 5 for CT rating In case of CT50A for an electric power with current 2 5A or more the accuracy is 2 0 For PF 1 Q5 BATT is displayed A5 It is notice to re...

Page 91: ...arch 2013 ARCT1F497E 3 4th edition Add function Ver 1 20 Enforcement the demand function Add setting items for mode 2 Change time setting range add second Add logging data items for file type 3 Add display items electric power converted by pulse and maximum demand January 2016 ARCT1F497E 4 5th edition Add explanations Settings of demand monitor by pulse input Clock correction function Add function...

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