Panasonic KW2G User Manual
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Panasonic KW2G User Manual

Eco-power meter
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  • Page 2 【KW2G】 Basic setting to measure by KW2G Eco-POWER METER When wiring the main unit and the current transformer (CT) and setting the basic setting after power on, you can measure the power The basic setting of MODE1 is necessary to measure.
  • Page 3 【KW2G-H (SD card type)】 Basic setting to measure by KW2G-H Eco-POWER METER When wiring the main unit and the current transformer (CT) and setting the basic setting after power on, you can measure the power The basic setting of MODE1 is necessary to measure.
  • Page 4 Copyright and trademark ● Panasonic Industrial Devices SUNX Co., Ltd. owns the copyright of this manual. ● We stiffly refuse the reproduction of without permission from this manual. ●Modbus Protocol is a communication protocol that the Modicon Inc. developed for PLC.
  • Page 5 Introduction Thank you very much indeed for purchasing ‘KW2G Eco-POWER METER’. In this manual, we explain the usage of ‘KW2G Eco-POWER METER’ in detail. Please use it correctly after understanding the content enough.

  • Page 6: Table Of Contents

    4.1 Setting for KW2G main unit and Expansion unit (power measurement) ..........24 4.2 Setting for KW2G-H main unit SD card type and Expansion unit (power measurement) ..... 28 4.3 Setting Mode Explanation for Main unit and Expansion unit (power measurement) ......33 4.3.1 Mode 1 ............................
  • Page 7 6.1 Working of Monitor Display ........................62 6.1.1 KW2G Main unit, Expansion unit (Power measurement) ............. 62 6.1.2 KW2G-H Main unit SD card type, Expansion unit (Power measurement) ........67 6.2 Display of each measurement value...................... 72 6.3 Display for power monitoring mode ....................... 72 6.3.1 Integrated electric power ......................
  • Page 8 Cautions before using ■ Installation environment ◇Do not use the Unit in the following environments. ・Where the unit will be exposed to direct sunlight and where the ambient temperature is outside the range of -10 to 50 °C. ・Where the ambient humidity is outside the range of 30 to 85 % RH (at 20℃, non-condensing) and where condensation might occur by sudden temperature changes ・Where inflammable or corrosive gas might be produced ・Where the unit will be exposed to excessive airborne dust or metal particles...

  • Page 9: Power Supply

    ■ Power supply ・Connect a breaker to the voltage input part for safety reasons and to protect the device. The breaker that connects to the voltage input part must arrange at the position easily reached, and display shows it is the breaker of the equipment. ・Do not turn on the power supply or input until all wiring is completed.

  • Page 10: Chapter 1 Unit's Outline

    Note) AKW2160GB and AKW216 0G are not compatible. Please be aware that only AKW2160GB and AKW4x0xB (CT) can be used together. *In this manual, we explain the usage of ‘KW2G Main unit’, ‘KW2G-H Main unit’ and ‘Expansion unit (Power measurement)’.

  • Page 11: Firmware

    KW2G / KW2G-H Eco-POWER METER 1.3 Firmware ●Combination software using the expansion unit Expansion unit firmware Firmware of AKW2010G Firmware of AKW2020G AKW2110G Ver.1.00 or later Ver.1.00 or later Ver.1.00 or later AKW2152G Ver.1.10 or later Ver.1.02 or later Ver.1.00 or later AKW2182G Ver.1.10 or later...

  • Page 12: Other Tools

    ATA4806 Battery (included with AKW2020G) AFPG804 Extension cable for CT 3m AKW4703 Extension cable for CT 5m AKW4705 *1 only for KW2G-H SD card type 1.5 Other tools Product name Functions Model No Download from our ・Monitoring and logging the Data collection software website.

  • Page 13: Measurement Items

    Pulse counter *5 *7 0 to 999999 *1 KW2G can measure regeneration electric power. Integrated electrical power is not integrated (not subtracted) when detecting regeneration power. *2 While detecting regeneration electric power, minus is displayed on instantaneous active power and power factor.

  • Page 14: Chapter 2 Parts Name And Working

    KW2G / KW2G-H Eco-POWER METER Chapter 2 Parts Name and Working 2.1 Parts Name Front view <Main unit> <Expansion unit (Power meter)> Operating power supply (Measured voltage input) (M3.5) Liquid crystal display MODE key SET key ITEM/△ key USB port...
  • Page 15 KW2G / KW2G-H Eco-POWER METER Side view <Main unit> <Expansion unit> Connector label Peel off before connecting expansion unit Do not peel off when not connecting. Hook: 2 points Push the hooks into the unit to fix the expansion unit.

  • Page 16: Key's Functions

    KW2G / KW2G-H Eco-POWER METER <Display> ① ①LOCK indicator ④ Key operation is invalid while lighting. ② ②TX/RX indicator ③ Lighting when communication ⑤ ③OUT indicator Lighting when pulse output ④Unit number indicator ⑥ M: Main unit 1 to 7: Expansion unit ⑤Setting mode indicator...

  • Page 17: Chapter 3 Installation

    ・ Power source system is the electrical power system from one power source (normally one transformer). ･KW2G can measure 1-system max. 16-circuits of 1P2W system and 1-system max. 8-circuit of 1P3W and 3P3W system by connecting a main unit and expansion units (power measurement, power measurement + pulse output).

  • Page 18: Din Rail Mounting

    KW2G / KW2G-H Eco-POWER METER 3.3 DIN rail mounting Connect all expansion units to the main unit before mounting DIN rail, then mount all connected units to DIN rail. Mount 1) Hang the unit on DIN rail. 2) Push it till making click sound and mount.

  • Page 19: Terminal Arrangement

    KW2G / KW2G-H Eco-POWER METER 3.4 Terminal arrangement ① ② ③ ④ Be sure to wire correctly according to the terminal arrangement and wiring diagrams. After completing wiring, be sure to attach the terminal cover for safety reasons. 3.4.1 Main unit (common to AKW2010G and AKW2020G)

  • Page 20: Wiring Diagram

    KW2G / KW2G-H Eco-POWER METER 3.5 Wiring Diagram 3.5.1 In case of using only main unit Please connect a breaker (3 to 15A) to the power supply (voltage input) part for safety reasons and to protect the device. Single-phase two-wire system ◆When measuring a load with rated input voltage...
  • Page 21 KW2G / KW2G-H Eco-POWER METER Single-phase three-wire system/Three-phase three-wire system ◆When measuring a load with rated input voltage Two CTs are needed to measure one load. Note) (1) When wiring CT, wire correctly according to this, K for power supply side and L for load side.

  • Page 22: In Case Of Using Main Unit And Connected Expansion Units

    KW2G / KW2G-H Eco-POWER METER 3.5.2 In case of using main unit and connected expansion units Please connect a breaker (3 to 15A) to the power supply (voltage input) part for safety reasons and to protect the device. Single-phase two-wire system ◆When measuring a load with rated input voltage...
  • Page 23 KW2G / KW2G-H Eco-POWER METER Single-phase three-wire system/Three-phase three-wire system ◆When measuring a load with rated input voltage Note) (1) When wiring CT, wire correctly according to this, K for power supply side and L for load side. (2) Using all CTs for one unit should be same.
  • Page 24 KW2G / KW2G-H Eco-POWER METER Single-phase three-wire system and Single-phase two-wire system Three-phase three-wire system and Single-phase two-wire system ◆When measuring a load with rated input voltage Note) (1) When wiring CT, wire correctly according to this, K for power supply side and L for load side.

  • Page 25: In Case Of Using Simple Measuring Mode

    KW2G / KW2G-H Eco-POWER METER 3.5.3 In case of using simple measuring mode It can measure electric power using only measured current with fixing voltage and power factor. You can use this function when it is impossible to input measured voltage due to the load situation or wiring conditions.

  • Page 26: How To Attach The Current Transformer (Ct)

    KW2G / KW2G-H Eco-POWER METER 3.6 How to attach the Current Transformer (CT) ・One CT is needed for 1 unit when measuring 1P2W (2 CTs for 2-circuit). Two CTs are needed when measuring 1P3W/3P3W. Using all CTs for one unit should be the same.

  • Page 27: For Input Connection

    KW2G / KW2G-H Eco-POWER METER Without Ammeter Power supply Breaker Shorted or resistor less than 0.1Ω Secondary current CT with 2nd current 5A Eco-POWER METER Dedicated CT for 5A Load 3.7 For input connection ●Pulse input (Main unit) ・Contact input Use highly reliable metal plated contacts.
  • Page 28 KW2G / KW2G-H Eco-POWER METER (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 the power supply circuit when connecting the external input circuit.

  • Page 29: For Output Connection

    KW2G / KW2G-H Eco-POWER METER 3.8 For Output connection ●Transistor output (Main unit) ・Since the transistor output is insulated from the internal circuit by a photo-coupler, it can be used both as a plus common and minus common. Eco-POWER METER...
  • Page 30 KW2G / KW2G-H Eco-POWER METER Recommended Cable Use the transmission cables shown below for Eco-POWER METER RS485 communication system. Conductor Insulator Cable Resistance Cable Applicable cable diameter Size Material Thickness (at 20℃） HITACHI 1.25 mm KPEV-S Max. Approx. (AWG16) Max.16.8Ω/km Polyethylene ×1P...

  • Page 31: Backup Battery (Only For Kw2G-H Sd Card Type)

    KW2G-H Eco-POWER METER 3.10 Backup battery (only for KW2G-H SD card type) Install the included battery (Model No.:AFPG804) before use. Be careful of the short circuit of battery contacts (metal part). When starting to use the unit first or passing long time with battery off, initialize the memory. If you don’t initialize it, it doesn’t log correctly.

  • Page 32: Low Voltage Directive

    KW2G / KW2G-H Eco-POWER METER 3.11 Low Voltage Directive When using in the application conforming to EN61010-1/IEC61010-1, make sure to satisfy the following conditions. (1) Pulse output part and communication part secure only basic insulation. In order to secure reinforced...

  • Page 33: Chapter 4 Settings

    KW2G Eco-POWER METER Chapter 4 Settings 4.1 Setting for KW2G main unit and Expansion unit (power measurement) When power on, M and connected expansion unit number turn on the display of main unit. After that, it displays the monitor display (measuring value).
  • Page 34 KW2G Eco-POWER METER Setting flow chart for KW2G main unit and Expansion unit (power measurement) Mode 1…Mode for setting each parameter for power measurement The mode with ★ is not displayed when it shift to expansion units. Select M (Main unit) before the settings.
  • Page 35 KW2G Eco-POWER METER ●When select except ‘Value’ with Unit for pulse output setting mode From the previous page Unit for pulse output setting mode ★ PL-P When select When select When select ‘AL-C’ When select ‘AL-S When select ‘Cnt’ When select ‘OUT’...
  • Page 36 KW2G Eco-POWER METER Mode 2…Mode for setting of each parameter for pulse measurement (only for main unit) Mode 3…Mode for setting of each parameter for serial communication (common) Mode 4…Mode for setting of each parameter for optional function When it shifts to expansion unit, mode 2 and mode 3 are not displayed.

  • Page 37: Setting For Kw2G-H Main Unit Sd Card Type And Expansion Unit (Power Measurement)

    KW2G-H Eco-POWER METER 4.2 Setting for KW2G-H main unit SD card type and Expansion unit (power measurement) When power on, M and connected expansion unit number turn on the display of main unit. After that, it displays the monitor display (measuring value).
  • Page 38 KW2G-H Eco-POWER METER Setting flow chart for KW2G-H SD card type and Expansion unit (power measurement) Mode 1…Mode for setting each parameter for power measurement The mode with ★ is not displayed when it shift to expansion units. Select M (Main unit) before the settings.
  • Page 39 KW2G-H Eco-POWER METER ●When select except ‘Value’ on Unit for pulse output setting mode From the previous page Unit for pulse output setting mode ★ PL-P When select When select When select ‘AL-C’ When select ‘AL-S When select ‘Cnt’ When select ‘OUT’...
  • Page 40 KW2G-H Eco-POWER METER Mode 2…Mode for setting of each parameter for pulse measurement Mode 3…Mode for setting of each parameter for serial communication Mode 4…Mode for setting of each parameter for optional function Mode 5…Mode for setting of year-month-date and time When it shifts to expansion unit, mode 2, mode 3 and mode 5 are not displayed.
  • Page 41 Log cycle *1 Only for KW2G-H SD card type (AKW2020G) There is no display with KW2G standard type (AKW2010G). *2 It can set to the only one expansion unit. There is no display with the expansion unit (analog input) (AKW2182).

  • Page 42: Setting Mode Explanation For Main Unit And Expansion Unit (Power Measurement)

    ■The value with under line ‘ ’ is initial setting among each setting value. ☆Set before measurement. Some modes are only for KW2G-H SD card type. Refer to 4.1 and 4.2. The mode with (※) mark can be set to each unit.
  • Page 43 KW2G/ KW2G-H Eco-POWER METER VT ratio setting mode Mode defines voltage input method to the main unit, input voltage directly or uses a voltage transformer (VT) (over 440V system). ・It can be set the range of 1.00 to 99.99. ‘1.00’ should be set when voltage input directly without connecting VT.
  • Page 44 KW2G/ KW2G-H Eco-POWER METER Simple measuring setting mode Mode defines that you use simple measuring function or not. Select ‘ON’ in order to use simple measuring function. Press <ITEM/△> to change OFF ⇔ ON. ↓<SET> Simple voltage setting mode *It is only when ‘ON’ is selected on Simple measuring setting mode.
  • Page 45 KW2G/ KW2G-H Eco-POWER METER ☆ Current for time measurement 1 Mode defines for time measured current. It measures OFF-time and ON-time1 by setting value. ・It can be set the range of 0.1 to 100.0%F.S. (initial 50.0) Ex) When 50.0 is set, the current exceeds 50.0%F.S. is measured as ON-time, the current under 50.0%F.S.
  • Page 46 KW2G/ KW2G-H Eco-POWER METER Unit for pulse output setting mode Mode defines unit used for pulse output. It defines the unit of integrated electric power for 1-pulse output. ・Select from 0.001/0.01/0.1/1/10/100kWh /AL-P/AL-C/AL-S/Cnt/OUT/Error. When one of the ‘0.001/0.01/0.1/1/10/100’ [kWh] is set, one pulse is output at reaching the setting value.
  • Page 47 KW2G/ KW2G-H Eco-POWER METER Current alarm setting mode *It is only when ‘AL-C’ is selected on unit for pulse output setting mode. Mode defines the ratio of current used for alarm output. (Ratio for the rated current) ・It is set the range of 0.1 to 100.0%.
  • Page 48 KW2G/ KW2G-H Eco-POWER METER General-purpose output setting mode *It is only when ‘OUT’ is selected on unit for pulse output setting mode. Mode defines a type of general-purpose output. ・Select from PL-L/ PL-F/ PL-O. ‘PL-L (Level output)’ When the designated data register is 1(ON), it output.
  • Page 49 KW2G/ KW2G-H Eco-POWER METER Electricity charge setting mode Mode defines electricity charge ratio used as a standard per 1kWh. ・It can be set the range of 0.00 to 99.99 /1kWh. (Initial 10.00) Set it using <ITEM/△>,<SET>+<ITEM/△>. Increase (0.00 to 99.99, initial: 10.00) Decrease ↓<SET>...

  • Page 50: Mode 2

    KW2G/ KW2G-H Eco-POWER METER 4.3.2 Mode 2 (Mode for setting of each parameter for pulse measurement: Mode 2 is for the functions of main unit.) Mode2 Setting flow chart Monitor ↓<MODE> continuous press MODE1 Lighting ↓<ITEM/△> MODE 2 Lighting ↓<SET>...

  • Page 51: Mode 3

    KW2G/ KW2G-H Eco-POWER METER 4.3.3 Mode 3 (Mode for setting of each parameter for serial communication: Mode 3 is common settings for main unit and expansion unit.) Mode3 Setting flow chart Monitor ↓<MODE> continuous press MODE 1 Lighting ↓<ITEM/△> 2 times MODE 3 Lighting ↓<SET>...
  • Page 52 KW2G/ KW2G-H Eco-POWER METER Transmission format setting mode 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.

  • Page 53: Mode 4

    KW2G/ KW2G-H Eco-POWER METER 4.3.4 Mode 4 (Mode for setting of each parameter for optional function) The mode with (※) mark can be set to each unit. MODE4 Setting flow chart Monitor ↓<MODE> continuous press MODE 1 Lighting ↓<ITEM/△> 3 times MODE 4 Lighting ↓<SET>...
  • Page 54 KW2G/ KW2G-H Eco-POWER METER Saved file type selection mode *Only KW2G-H Mode defines file types to write to SD memory card. Refer to Chapter 5.4 for the detail contents of each file. ・Select ON and press <SET> for each type 1, 2 and 3, it writes to SD memory card.

  • Page 55: Mode 5

    KW2G/ KW2G-H Eco-POWER METER 4.3.5 Mode 5 (Mode for setting of year-month-day and time) Mode 5 Setting flow chart Monitor ↓<MODE> continuous press MODE 1 Lighting ↓<ITEM/△> 4 times MODE 5 Lighting ↓<SET> Calendar timer setting mode *Only KW2G-H Mode defines the year, month, day and time.

  • Page 56: Remove Sd Memory Card *Only Kw2G-H

    KW2G/ KW2G-H Eco-POWER METER 4.3.6 Remove SD memory card *Only KW2G-H You can remove SD memory card safety. ・Press SD EJECT’ is displayed, and stop writing to SD memory card. <SET> during ‘ When ‘SD ok’ is appeared, you can remove SD memory card.

  • Page 57: Chapter 5 Various Functions

    KW2G/ KW2G-H Eco-POWER METER Chapter 5 Various Functions 5.1 LOCK mode It is the mode makes all keys unable. Use when you want to fix one of the measurement displays (For all displays). In this mode, you can not input by any keys.

  • Page 58: General Purpose Output

    KW2G/ KW2G-H Eco-POWER METER 5.2.6 General purpose output It is possible to output via communication with setting output pattern. Refer to 5.4 General purpose output function in detail. 5.2.7 Error alarm When one of the errors that battery shortage, SD memory card writing error, communication error between main unit and expansion unit, pulse output (transistor output) turns on in order to notice.

  • Page 59: General-Purpose Output Function

    KW2G/ KW2G-H Eco-POWER METER 5.4 General-purpose output function Using this general-purpose output function, it turns on or off the output by writing 0 (OFF) or 1(ON) to the designated data register via communication. When it turns on, data register is started with 0 (OFF).

  • Page 60: Hour Meter Function

    KW2G-H Eco-POWER METER 5.5 Hour meter function (KW2G/KW2G-H Main unit Ver.1.10 or more) current actual work time ① ④ ① ③ ② ① ② ③ ④ ② Cutoff current Available Not available Available Maintenance available ①OFF-time ②ON-time1 ③ON-time2 ④Maintenace time Under cutoff current, it measures as 0A.

  • Page 61: Log Data Writing Function

    KW2G-H Eco-POWER METER 5.6 Log data writing function This is the function that it writes the measurement data to SD memory card. Be sure to format your SD memory card before using. There are 3 kinds of file to write.

  • Page 62: In Case That You Insert Sd Memory Card

    KW2G-H Eco-POWER METER 5.6.2 In case that you insert SD memory card When measuring data are logged in the unit memory, the following data can be written. File type 1, 2 The latest 8-day data File type 3 The latest 720 records max. (12-hour data: Saved cycle 1min.) It writes only the latest data.
  • Page 63 KW2G-H Eco-POWER METER ◇How to write data of the 1 day (fig.1) (fig.2) (1) Set ‘ON’ for file type to save with saved file type selection mode (mode 4). (Available only type 1 and type 2) (2) Shift to display ‘Daily integrated electric power’ in option mode.

  • Page 64: Unit Memory

    KW2G-H Eco-POWER METER <Remove SD memory card> Remove SD memory card according to the instructions. Remove it with SD memory card remove display. Removing SD memory card OK removing SD memory card Remove SD memory card <Notice> During ‘SD ACCESS’ is displayed, do not remove the memory card.

  • Page 65: Format For Written File

    KW2G-H Eco-POWER METER 5.6.4 Format for written file Data in SD memory card is saved with the below format as csv file. The file format, which is saved by Eco-POWER METER, is fixed. <File type 1 (Instantaneous value)> Date Time...
  • Page 66 KW2G-H Eco-POWER METER <File type 2 (Difference value)> Date Time KW2G KW2G KW2G KW2G KW2G COM1[Unit No.01] COM1[Unit No.01] COM1[Unit COM1[Unit COM1[Unit No.01] DT100 DT122 DT154 DT194 DT196 DIFFERENCE DIFFERENCE DIFFERENDIFFERENDIFFERENCE US32 ->FLT US32 ->FLT US32 ->FLUS32 ->FLUS32 ->FLT pulse...
  • Page 67 KW2G-H Eco-POWER METER <File type 3 (Instantaneous detailed value)> 1 No. Date time kvar kvar 2012/10/1 0:00 2012/10/1 0:15 2012/10/1 0:30 2012/10/1 0:45 2012/10/1 1:00 2012/10/1 1:15 2012/10/1 1:30 2012/10/1 1:45 2012/10/1 2:00 2012/10/1 2:15 2012/10/1 2:30 (1) Item (row 1) Measured data (Fixed) Timing to log data: 1,10,15,30,60 min.

  • Page 68: File Name And Saved Folder

    KW2G-H Eco-POWER METER 5.6.5 File name and Saved folder Files are saved in SD memory card with the below constructions. <File type 1 (Instantaneous value)> ex.) Main unit + 1 unit of expansion unit When you insert SD memory card at 13:20, March 1 2012: Folder syunji_u0(120229_001500_TRG).csv...
  • Page 69 KW2G-H Eco-POWER METER <File type 2 (Difference value)> When you insert SD memory card at 13:20, April 3 2009: sabun_u0(120229_001500_TRG).csv Main unit data of February 29 2012 DLU0001 sabun_u1(120229_001500_TRG).csv Expansion unit 1 data of February 29 2012 sabun_u0(120301_001500_TRG).csv Main unit data of March 1 2012 until 13:15 sabun_u1(120301_001500_TRG).csv...

  • Page 70: Logging Data

    KW2G-H Eco-POWER METER 【Folder name】 LOG -> Fixed Unitlog -> Fixed 【File name】 unitlogNo01_u0_20120301140000.csv Saved year/month/day/hour/minute/second 14:00:00 March 1 2012 Unit number (0:main unit, 1 to7: expansion unit) Station number of Eco-POWER METER unitlogNo01_u0_BK20120301130000.csv Saved year/month/day/hour/minute/second 13:00:00 March 1 2012 Recognition mark of same day *Every time when you insert SD memory card, the new file is saved.

  • Page 71: Chapter 6 Display Of Each Value

    KW2G Eco-POWER METER Chapter 6 Display of each Value 6.1 Working of Monitor Display 6.1.1 KW2G Main unit, Expansion unit (Power measurement) Single-phase two-wire system Integrated electric power (1) ↓<ITEM/△> Integrated electric power (2) ↓<ITEM/△> Instantaneous electric power (1) →...
  • Page 72 KW2G Eco-POWER METER → → ON-time2 (1) <ITEM/△> ON-time1 (1) <ITEM/△> OFF-time (1) continuous press continuous press → → Maintenace time Actual time (1) <ITEM/△> <ITEM/△> continuous press continuous press → → Ratio of Ratio of <ITEM/△> ON-time2 <ITEM/△> ON-time2...
  • Page 73 KW2G Eco-POWER METER (1), (2) of each item means as below. Integrated electric power calculated by voltage between P1-P0 Integrated electric power (1) and detected current by CT1 Integrated electric power calculated by voltage between P2-P0 Integrated electric power (2)
  • Page 74 KW2G Eco-POWER METER Single-phase three-wire system/Three-phase three-wire system Integrated electric power ↓<ITEM/△> Instantaneous electric power → → Instantaneous Instantaneous Instantaneous <ITEM/△> <ITEM/△> active power reactive power apparent power continuous press continuous press ↓<ITEM/△> Current → → R-current <ITEM/△> N/S-current <ITEM/△>...
  • Page 75 KW2G Eco-POWER METER *1 Display of frequency and counter is common to all units. *2 Display is changed according to the phase/wire system. Current Voltage Single-phase R-voltage, RT-voltage, T-voltage R-current, N-current, T-current three-wire system (P1-P0) (P1-P2) (P2-P0) Three-phase RS-voltage, RT-voltage, TS-voltage...

  • Page 76: Kw2G-H Main Unit Sd Card Type, Expansion Unit (Power Measurement)

    KW2G-H Eco-POWER METER 6.1.2 KW2G-H Main unit SD card type, Expansion unit (Power measurement) Single-phase two-wire system Integrated electric power (1) ↓<ITEM/△> Integrated electric power (2) ↓<ITEM/△> Instantaneous electric power (1) → → Instantaneous Instantaneous Instantaneous <ITEM/△> <ITEM/△> active power (1)
  • Page 77 KW2G-H Eco-POWER METER → → ON-time2 (1) <ITEM/△> ON-time1 (1) <ITEM/△> OFF-time (1) continuous press continuous press → → Maintenace time Actual time (1) <ITEM/△> <ITEM/△> continuous press continuous press → → Ratio of Ratio of <ITEM/△> <ITEM/△> ON-time2 (1)
  • Page 78 KW2G-H Eco-POWER METER 【Outline for the Working of Option Mode Display】 only KW2G-H SD card type Power monitoring Option mode ↓<SET> Option mode Calendar → Year-Month-Day Time <SHIFT> ↓<ITEM> Daily integrated electric power (1) (Latest 8 days) → → →...
  • Page 79 KW2G-H Eco-POWER METER Single-phase three-wire system/Three-phase three-wire system Integrated electric power ↓<ITEM/△> Instantaneous electric power → → Instantaneous Instantaneous Instantaneous <ITEM/△> <ITEM/△> active power reactive power apparent power continuous press continuous press ↓<ITEM/△> Current → → R-current <ITEM/△> N/S-current <ITEM/△>...
  • Page 80 (P1-P0) (P1-P2) (P2-P0) Three-phase RS-voltage, RT-voltage, TS-voltage R-current, S-current, T-current three-wire system (P1-P0) (P1-P2) (P2-P0) 【Outline for the Working of Option Mode Display】 only KW2G-H SD card type Power monitoring Option mode ↓<SET> Option mode Calendar → Year-Month-Day Time <SHIFT>...

  • Page 81: Display Of Each Measurement Value

    KW2G / KW2G-H Eco-POWER METER 6.2 Display of each measurement value 【Unit change】 Press <MODE> to shift display of main unit (M) and expansion units (1 to 7). Main unit M Lighting Expansion unit 7 Lighting 6.3 Display for power monitoring mode 6.3.1 Integrated electric power...

  • Page 82: Instantaneous Electric Power

    KW2G / KW2G-H Eco-POWER METER How to display with 9-digit Integrated electric power can be displayed with 9-digit. ・Press <MODE> during pressing <ITEM/△> at integrated electric power display (kWh/MWh), it changes to integrated electric power with 9-digit (kWh) and to integrated electric power with 3-digit under decimal point (kWh).

  • Page 83: Current

    KW2G / KW2G-H Eco-POWER METER 6.3.3 Current ・It displays the current value. ・Press <ITEM/△> continuously to shift the display. *When the display is different from the measured load system, set to the correct system at the setting mode. (Refer to 4.2.1 Phase/wire setting mode.)

  • Page 84: Voltage

    KW2G / KW2G-H Eco-POWER METER 6.3.4 Voltage ・It displays the voltage value. ・Press <ITEM/△> continuously to shift the display. *When the display is different from the measured load system, set to the correct system at the setting mode. (Refer to 4.2.1 Phase/wire setting mode.)

  • Page 85: Electricity Charge

    KW2G / KW2G-H Eco-POWER METER 6.3.5 Electricity Charge ・It displays the standard electricity charge for the integrated electrical power. Example of 1P2W Electricity charge(1)[1.CHG] is displayed first and press <ITEM/△> to display electricity charge(2)[2.CHG]. Electricity charge Electricity charge Example of 1P3W/3P3W ‐...

  • Page 86: Power Factor

    KW2G / KW2G-H Eco-POWER METER 6.3.7 Power factor ・It displays power factor of the load. Example of 1P2W Power factor (1)[1.PF] is displayed first and press <ITEM/△> to display power factor (2)[2.PF]. Power factor(1) Power factor(2) Example of 1P3W/3P3W ・It displays minus value when it detects the regeneration electric power. (Ex.:-1.00) ・How to calculate power factor...

  • Page 87: Hour Meter

    KW2G / KW2G-H Eco-POWER METER 6.3.9 Hour meter ・It displays measured value using hour meter function such as ON-time. note) It doesn’t display when software version is not supported. Example of 1P2W ON-time2(1) [1.ONh2] is disolayed first and press <ITEM/△> to display ON-time2(2) [2.ONh2].
  • Page 88 KW2G / KW2G-H Eco-POWER METER Example of 1P3W/3P3W ON-time2 ON-time1 OFF-time continuously continuously Maintenace time actual work time continuously continuously continuously Ratio of ON-time2 Ratio of ON-time1 continuously ・After reaching the full scale (99999.9h), the value reverts to 0.0h but continues to measure.

  • Page 89: Counter / Pulse Input Status

    KW2G / KW2G-H Eco-POWER METER 6.3.10 Counter / Pulse input status ・It displays present count value (pulse input value) or pulse input status. Example continuous press Pulse input status Pulse input status Input not input How to Reset Count value ・At counter display, holding down <SET>...

  • Page 90: Display For Option Mode *Only Kw2G-H Sd Card Type

    KW2G-H Eco-POWER METER 6.4 Display for option mode *only KW2G-H SD card type Press <ITEM/△> with counter display in power monitoring mode, and it displays [OPTION]. Press <SET> with [OPTION] display, it shifts to option mode. To option mode Counter...

  • Page 91: Daily Integrated Electric Power (Kwh)

    KW2G-H Eco-POWER METER 6.4.2 Daily integrated electric power (kWh) ・It displays the daily integrated electric power. It can display a log data for the latest 8 days. ・Press <SET> to shift 1-day ago, 2-day ago, 3-day ago ・・・. Select day and it displays daily integrated power after 2 seconds.

  • Page 92: Hourly Integrated Electric Power (Kwh)

    KW2G-H Eco-POWER METER Example of 1P3W/3P3W Daily integrated electric power March 10 (kWh) March 9 (kWh) March 8 (kWh) Auto change after 2 seconds 6.4.3 Hourly integrated electric power (kWh) ・It displays hourly integrated electric power. It can display a log data for the latest 12 hours.
  • Page 93 KW2G-H Eco-POWER METER Hourly integrated electric power (2) 8:15 (kWh) 8:00 (kWh) 7:45 (kWh) Auto change after 2 seconds Example of 1P3W/3P3W Hourly integrated electric power 8:15 (kWh) 8:00 (kWh) 7:45 (kWh) Auto change after 2 seconds...

  • Page 94: Other Indication

    KW2G / KW2G-H Eco-POWER METER 6.5 Other indication 6.5.1 Indication while communication TX/RX indicator is blinking while Eco-POWER METER is under communication. TX/RX indicator 6.5.2 Error indication Indication of number is blinking when main unit can’t commnunicate with the expansion unit.

  • Page 95: Chapter 7 Communication

    KW2G / KW2G-H Eco-POWER METER Chapter 7 Communication 7.1 Communication Procedures Communication starts with command transmission from the host computer (hereafter Master) and ends with the response of Eco-POWER METER (hereafter Slave). Master Slave Command • Response with data When master sends reading command, slave responds with the Data corresponding set value or current status.

  • Page 96: Mewtocol Communication

    KW2G / KW2G-H Eco-POWER METER 7.3 MEWTOCOL Communication 7.3.1 Overview of MEWTOCOL-COM (RS485, USB) ◆Command and response functions The computer sends commands (instructions) to Eco-POWER METER, and receives responses in return. This enables the computer and Eco-POWER METER to converse with each other, so that various kinds of information can be obtained and provided.

  • Page 97: Data Register List (Mewtocol)

    KW2G / KW2G-H Eco-POWER METER 7.3.2 Data Register List (MEWTOCOL) 【M】:Main unit 【E】:Expansion unit Registers without 【 】 are common. Data Name Unit Kind of data Range register 0: Normal 1: Error 0 to 7bit (communication error between main and expansion unit) －...
  • Page 98 KW2G / KW2G-H Eco-POWER METER Data Name Unit Kind of data Range register 【M】 DT00064 Power alarm value 0 to 999999 0.01kW Unsigned 32bit (Instantaneous DT00065 electric power) VT ratio 0.01 100 to 9999 DT00066 Unsigned 16bit Cutoff current 0.1％...
  • Page 99 KW2G / KW2G-H Eco-POWER METER Data Name Unit Kind of data Range register 【M】Max. counting DT00162 Unsigned 16bit 50000 or 30 speed Auto-off time 0 to 99 (0:always on) DT00163 Unsigned 16bit 【M】 1 to 100 DT00198 Unsigned 16bit Pulse output width...
  • Page 100 KW2G / KW2G-H Eco-POWER METER Data resister Name Unit Kind of data Range 【E】 1min. 0 to 9999 DT01000+N＊100+34 Unsigned 16bit Time for stand-by alarm 【E】 － General-purpose output 0:OFF 1:ON DT01000+N＊100+35 Unsigned 16bit judgement value 【E】 0: Level output －...
  • Page 101 KW2G / KW2G-H Eco-POWER METER Data register Name Unit Kind of data Range DT{(N+1)＊100}+70 Voltage (R/RS) *2 0.1V Unsigned 32bit 0 to 999999 DT{(N+1)＊100}+71 DT{(N+1)＊100}+72 Voltage (RT) *2 0.1V Unsigned 32bit 0 to 999999 DT{(N+1)＊100}+73 DT{(N+1)＊100}+74 Voltage (T/TS) *1 *2 0.1V...
  • Page 102 KW2G / KW2G-H Eco-POWER METER Data register Name Unit Kind of data Range DT02000+N＊100+30 ON-time2 (1) *3 0.1h Unsigned 32bit 0 to 999999 DT02000+N＊100+31 DT02000+N＊100+32 ON-time2 (2) *1 *3 1min Unsigned 32bit 0 to 5999994 DT02000+N＊100+33 DT02000+N＊100+34 ON-time2 (2) *1 *3 0.1h...

  • Page 103: Error Codes

    KW2G / KW2G-H Eco-POWER METER 7.3.3 Error Codes ◇Basic procedure errors Error code Error name Explanation ・A Bcc error occurred in the command data. Bcc error ・A command message was sent that does not fit the transmission Format error format.
  • Page 104 KW2G / KW2G-H Eco-POWER METER ◆[MD]: Register or Reset data monitored (Registers the data to be monitored.) *Up to 16 points can be registered for one unit. ◇Command (Register) Data specification ① Data specification Word No. Word No. Destination ％...

  • Page 105: Modbus (Rtu) Communication

    KW2G / KW2G-H Eco-POWER METER 7.4 MODBUS (RTU) Communication 7.4.1 Overview of MODBUS (RTU) ◆8-bit binary data in command is transmitted as it is. Data format Start bit : 1 bit Data bit : 8 bits *7bits is not available.
  • Page 106 KW2G / KW2G-H Eco-POWER METER ◇Data: Data depends on the function code. A request message from the master side is composed of data item, number of data and setting data. A response message from the slave side is composed of number of bytes, data and exception code in negative acknowledgement.
  • Page 107 KW2G / KW2G-H Eco-POWER METER <3> Reset integrated electric power (0064H, 0065H: 2-word) of address 1 (When setting to 0 [0000, 0000H]) ・Command Number of Slave Function Data item Number of ⇒ 3.5 idle data item to address code data...

  • Page 108: Data Register List (Modbus Communication)

    KW2G / KW2G-H Eco-POWER METER 7.4.2 Data Register List (MODBUS communication) 【M】:Main unit 【E】:Expansion unit Registers without 【 】 are common. MODBUS Range: Hexadecimal Data item Name Unit Kind of data Function (Range: Decimal) (MEWTOCOL) code 0H(0): Normal 1H(1): Error...
  • Page 109 KW2G / KW2G-H Eco-POWER METER MODBUS Range: Hexadecimal Data item Function Name Unit Kind of data (Range: Decimal) (MEWTOCOL) code 0038H 03H/ － Simple measuring Unsigned 16bit 0H(0):OFF 1H(1):ON (DT00056) 06H/10H 0039H<LSB> (DT00057) 03H/ Simple voltage 0.1V Unsigned 32bit 0H to 1869FH (0 to 99999) 06H/10H 003AH<MSB>...
  • Page 110 KW2G / KW2G-H Eco-POWER METER MODBUS Range: Hexadecimal Data item Function Name Unit Kind of data (Range: Decimal) (MEWTOCOL) code 0050H 03H/ － SRAM Initialize Unsigned 16bit 0H(0)<OFF>,1H(1)<ON> (DT00080) 06H/10H 0051H 03H/ － Saved file type 1 Unsigned 16bit 0; OFF 1;...
  • Page 111 KW2G / KW2G-H Eco-POWER METER MODBUS Data item Range: Hexadecimal Function Name Unit Kind of data (MEWTOCOL) (Range: Decimal) code 【E1】 CH0 0454H 03H/ Unsigned 16bit C350H (50000) , 1EH (30) (DT01108) 06H/10H Max. counting speed 【E1】 CH1 0455H 03H/...
  • Page 112 KW2G / KW2G-H Eco-POWER METER MODBUS Data item Range: Hexadecimal Name Unit Kind of data Function (MEWTOCOL) (Range: Decimal) code 【E1】 General-purpose 046FH 03H/ － 0H(0):OFF 1H(1):ON Unsigned 16bit output (DT01135) 06H/10H judgement value 【E1】 0H(0): Level output 0470H 03H/ －...
  • Page 113 KW2G / KW2G-H Eco-POWER METER MODBUS Range: Hexadecimal Data item Name Unit Kind of data Function (Range: Decimal) (MEWTOCOL) code 0086H<LSB> 【M】 (DT00134) 0.001A Unsigned 32bit 0H to 5B8D80H (0 to 6000000) 0087H<MSB> Current (R) (DT00135) 0088H<LSB> 【M】 (DT00136) 0.001A...
  • Page 114 KW2G / KW2G-H Eco-POWER METER MODBUS Range: Hexadecimal Data item Name Unit Kind of data Function (Range: Decimal) (MEWTOCOL) code 00B8H<LSB> 【M】 (DT00184) 0.01 FF0BDC1H to F423FH Signed 32bit Instantaneous reactive 00B9H<MSB> kvar (-999999 to 999999) power(2) *1 (DT00185) 00BAH<LSB>...
  • Page 115 KW2G / KW2G-H Eco-POWER METER MODBUS Range: Hexadecimal Data item Name Unit Kind of data Function (Range: Decimal) (MEWTOCOL) code 07D4H<LSB> 【M】 (DT2004) 1min Unsigned 32bit 0H to 5B8D7AH (0 to 5999994) 07D5H<MSB> Actual work time(1) (DT2005) 07D6H<LSB> 【M】 (DT2006) 0.1h...
  • Page 116 KW2G / KW2G-H Eco-POWER METER MODBUS Range: Hexadecimal Data item Name Unit Kind of data Function (Range: Decimal) (MEWTOCOL) code 07EEH<LSB> 【M】 (DT2030) 0.1h Unsigned 32bit 0H to F423FH (0 to 999999) 03H/10H 07EFH<MSB> ON-time2(1) (DT2031) 07F0H<LSB> 【M】 (DT2032） 1min...

  • Page 117: Status

    KW2G / KW2G-H Eco-POWER METER 7.5 Status It shows the status with bit. Ex.) Battery shortage (0200(H)) Number (H) bit number bit value bit value 0: normal bit value 1: error Bit number Name Contents It can’t communicate between main unit and expansion unit correctly.

  • Page 118: Chapter 8 How To Update The Firmware

    8.1 Prepare Eco-POWER METER to update 1) Power off KW2G Eco-POWER METER main unit (including expansion unit). 2) With pressing 3 keys of <MODE>, <SET> and <ITEM/▲>, power on KW2G Eco-POWER METER. After unit numbers and [PROG] are displayed on the upper line, release the keys.
  • Page 119 KW2G / KW2G-H Eco-POWER METER 2) Click [Refer] and it opens the window to select firmware. Select file to update ‘kw2gverxxxx_verup.kw2’ and click [Open]. *You can download from our website the latest firmware. 3) When selected file name is displayed, click [Update].
  • Page 120 KW2G / KW2G-H Eco-POWER METER The firmware in Eco-POWER METER is same or newer version of selected firmware, the window to skip or not is appeared. When you don’t update the firmware, click [Yes] to finish it. When you have used KW Version Upgrade Tool before, it displays the last updated firmware.
  • Page 121 KW2G / KW2G-H Eco-POWER METER 6) Cells of unit that its firmware is updated correctly are white. You can confirm with the display of Eco-POWER METER. After upgrading, [ROMV] is displayed on the upper line and version is displayed on the lower line.
  • Page 122 When click [Update] to update unit that update failed again, the below window might be appeared. In this case, click [No] and update it. 7) Click [Exit] to close KW Version Upgrade Tool. Power off KW2G Eco-POWER METER and turn on again. After that you can use KW2G Eco-POWER METER.

  • Page 123: Chapter 9 Specifications

    DIN rail mounting KW2G Main unit: 180g Weight KW2G-H Main unit SD card type: 185g (without battery) Expansion unit (Power measurement): 80g *1 Based on JIS C1216 5.2.3(5) and 5.2.3(6) *2 Between each channel of expansion unit (Pulse input/ Analog input) is not insulated.

  • Page 124: Measurement

    KW2G / KW2G-H Eco-POWER METER 9.2 Measurement ●Electric power input (Main unit, Expansion unit (power measurement)) Single-phase two-wire system Phase and wire system Single-phase three-wire system (common) Three-phase three-wire system 1-circuit Main unit (When measuring 1P2W: 2-circuit) Measurement circuit (1-power source system)

  • Page 125: Output Specifications

    KW2G / KW2G-H Eco-POWER METER ●Pulse input *only Main unit Input channel 1 channel Input method Contact / non-voltage a contact or open-collector Insulation method Non-isolated with internal circuit Input mode Addition (Fixed) Max. counting speed 50kHz/30Hz (Select with setting mode) Min.

  • Page 126: Communication Specifications

    KW2G / KW2G-H Eco-POWER METER Output cycle:25ms *1 The max. pulse output cycle is 25ms in order to work Width:1ms correctly and output 1 to 10ms pulse output. Therefore the pulse output unit should be set as that it output 40 pulses or less in 1 second.

  • Page 127: Main Unit Memory Specifications (Only Kw2G-H Sd Card Type: Akw2020G)

    KW2G / KW2G-H Eco-POWER METER 9.5 Main Unit Memory Specifications (only KW2G-H SD card type: AKW2020G) Logging Function Save cycle 15 minutes (every day 00:00:00) (fixed) File type 1 (Instantaneous value) (Instantaneous Integrated electric power(1), Integrated electric power(2), value) Instantaneous electric power:...

  • Page 128: External Memory Specifications (Only Kw2G-H Sd Card Type: Akw2020G)

    <Care for handling SD memory card> Be sure to format before using. In order to format SD memory card, use Panasonic format software. You can download from Panasonic website. File system of SD memory card formatted by PC’s software is not supported SD memory card standard generally.

  • Page 129: Self-Diagnostic Function

    KW2G / KW2G-H Eco-POWER METER 9.7 Self-diagnostic function If an error occurs, the following indication will be given. Indicator Meaning Output status To recover Err0 CPU error Turn the power off and then on again. Err1 Memory error* EEPROM life ended. Replace the unit.

  • Page 130: Dedicated Current Transformer Specifications

    KW2G / KW2G-H Eco-POWER METER 9.10 Dedicated Current Transformer Specifications ●Clamp-on type AKW4801B AKW4802B AKW4803B AKW4804B AKW4808B Model No AKW4801C AKW4802C AKW4803C AKW4804C AKW4808C Primary side rated current 5A / 50A 100A 250A 400A 600A Secondary side rated 1.67mA / 33.3mA...

  • Page 131: Chapter 10 Mounting

    KW2G / KW2G-H Eco-POWER METER Chapter 10 Mounting 10.1 Dimensions (Unit: mm) (tolerance:±1.0) 10.1.1 KW2G Main unit...

  • Page 132: Kw2G-H Sd Card Type Main Unit

    KW2G / KW2G-H Eco-POWER METER 10.1.2 KW2G-H SD card type Main unit...

  • Page 133: Expansion Unit (Power Measurement)

    KW2G / KW2G-H Eco-POWER METER 10.1.3 Expansion unit (power measurement) ◆DIN rail mounting Be sure to fix by hooks when expanding. ◆Panel cutout +0.5 {50+(25×n)}...

  • Page 134: Revision History

    Expansion unit (pulse input) Expansion unit (analog input) July, 2012 ARCT1F520E-2 edition Series addition Main unit: KW2G-H SD card type October, 2012 ARCT1F520E-3 edition ・Divide the manual for expansion unit (pulse input) and expansion unit (analog input) and edit this for...
  • Page 135 ©...

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