ROOTECH ACCURA 2300S User Manual
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ROOTECH ACCURA 2300S User Manual

Digital power meter/ single-phase three-feeder power measuring module
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Summary of Contents for ROOTECH ACCURA 2300S

  • Page 2 Digital Power Meter Accura 2300S front Accura 2300S rear Split-Core Single-Phase Three-Feeder Special-Purpose Modules Power Measuring Module Accura 2350-1P3FSC-125A Accura 2350-GAS Accura 2350-GW (Basic Module) Accura 2350-1P3FSC-125A-DIZCT Accura 2350-TEMP Accura TSEN/THSEN Accura 2350-TEMPS (Optional Module) Accura 2350-1P3FSC-60A Accura 2350-DO Accura 2350-IDC...
  • Page 3 Always power the device with the correct rated voltage. ◼ Install the device in a suitable electrical cabinet according to the recommended installation instructions. ◼ Failure to take these precautions could result in serious injuries or death. ⓒ 2015 Rootech Inc. All Rights Reserved Page 3...
  • Page 4 ◼ About the Manual Rootech Inc. reserves the right to make changes in the product specifications shown in this User Guide without prior notice. We recommend that customers should obtain the latest information on product specifications and the manual before placing orders.
  • Page 5 Rootech Inc. reserves the right to determine, at its discretion, whether to repair or replace the product or issue a refund for the product when the warranty period has expired or issues are not covered by warranty terms and conditions.
  • Page 6 Warranty Accura 2300S/2350-1P3FSC User Guide Rootech Inc. shall not be liable for any claims other than those made by customers, including the original purchaser, his employees, agents, or contractors for any loss, damage, or expense incurred related to the purchased product when the above warranty terms and conditions are not fulfilled.
  • Page 7 Accura 2300S/2350-1P3FSC User Guide Revision History Revision History The following versions of Accura 2300S/2350-1P3FSC User Guide have been released. Revision Date Description Revision 2.00 February 14, 2022 Release of the User Guide for the device with HW revision number higher than 200.00...

  • Page 8: Table Of Contents

    Step 3: Through-Hole Current Wiring of Accura 2350-1P3FSC ....................48 Step 4: Connecting Accura 2350-1P3FSC-DIZCT Module to DIs/ZCT ..................52 Step 5: Connecting Accura 2300S with Accura 2350 ........................55 Step 6: Connecting Accura 2300S Devices for External Communication ................57 Ethernet Communication ..................................57 RS-485 Communication ..................................59 Step 7: Accura 2300S Power Supply and Ground Wiring ......................
  • Page 9 Accura 2300S/2350-1P3FSC User Guide Contents Chapter 4 Accura 2300S Operation/Setup ........................73 Device Configuration ......................................73 Operation Mode ....................................... 73 LED Display ........................................73 Button Operation ...................................... 74 Display Mode ........................................76 Front View ........................................76 Selecting the ID of Accura 2350 Module............................. 78 Full Display Screen ....................................
  • Page 10 No Event Log ......................................134 Necessary Steps for Device Setup ................................135 Step 1: Setup for the Voltage Wiring of Accura 2300S and PT Rating ..............135 Step 2: Automatic Assignment of Accura 2350 Module IDs and Update of IDs ..........136 Step 3: Ethernet Setup of Accura 2300S ............................139 Chapter 5 Measurements ...............................
  • Page 11 Accura 2300S/2350-1P3FSC User Guide Contents Wiring Modes ......................................171 Appendix E Ordering Information ..........................172 ⓒ 2015 Rootech Inc. All Rights Reserved Page 11...
  • Page 12 Fig 2.11 Installation Diagram of Accura 2350-1P3FSC (Using Accura 2350-3P-CT5A Module) ...... 31 Fig 2.12 Accura 2350-1P3FSC Installation Diagram (Using Accura 2350-1PSCSH Module) ......32 Fig 2.13 Mounting Accura 2300S on the Panel ........................33 Fig 2.14 New Installation of Accura 2350-1P3FSC (Using Mounting Wings) ............34 Fig 2.15 Mounting Accura 2350-1P3FSC on the Panel through Mounting Holes ..........
  • Page 13 Fig 2.38 Connecting the Optional Module to the External ZCT ..................53 Fig 2.39 Digital Input and ZCT Wiring of Optional Module ....................54 Fig 2.40 Example of Connecting Accura 2300S to Accura 2350 for Dedicated Communication ....55 Fig 2.41 Ethernet Communication Ports on Accura 2300S ....................57 Fig 2.42 Connecting Accura 2300S Devices via Ethernet Communication ..............
  • Page 14 Fig 5.11 Hourly Auto Sync .................................154 Fig 5.12 Manual Sync ...................................154 Fig 5.13 Symmetrical Components..............................156 Fig 5.14 Aggregation Process for Avg/Max/Min Values .....................157 Fig 5.15 Aggregation Process for the Last Latched Values ....................157 Page 14 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 15: Chapter 1 Introduction

    Power Meters Specialized for Managing Major Branch Loads The digital power meter product line includes Accura 2300S installed on the front of industrial control panels, including MCC panels and Accura 2350 installed at individual branch loads inside the panels.
  • Page 16 Maximum/Minimum/Average Values Available within Aggregation Intervals Accura 2300S/2350 calculate the average of the data collected every 0.5 seconds based on the data measured over one cycle for various parameters, including voltage, current, and power. Based on this data, it also provides the maximum/minimum/average values for various aggregation intervals, including 1 second, 5 seconds, 1 minute, 5 minutes, 1 hour and 6 hours.

  • Page 17: Fig 1.1 Accura 2350-1P3Fsc Module Compatible With Mccbs/Elbs

    Chapter 1 Introduction Proven Safety and Reliability with CE/UL/KC Certifications The internal and external structures(product and circuit design) of Accura 2300S/2350 meet safety and reliability requirements for CE (EN 55011:2009/A1:2010, EN IEC 61326-1:2021, EN IEC 61326-2-1:2021, EN IEC 61000-3-2:2019/A1:2021, EN 61000-3-3:2013/A2:2021), UL (UL 61010-1 3rd edition, UL 61010-2- 030), and KC (EN 55011:2009/A1:2010, EN IEC 61326-1:2021, EN IEC 61326-2-1:2021) standards.

  • Page 18: Applications

    Energy Efficiency Evaluation of High-Efficiency Equipment Energy managers can evaluate the efficiency of various high-efficiency devices, including LED lighting, motors, and power equipment based on the highly accurate energy data provided by Accura 2300S/2350 modules. Page 18 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 19: Product Information

    Product Information Digital Meter/Split-Core Single-Phase Three-Feeder Power Measuring Module The digital power meter product line includes Accura 2300S mounted on the front of an ICP(Industrial Control Panel) and Accura 2350-1P3FSC modules connected to 3 single-phase loads in the panel. Accura...

  • Page 20: Digital Power Meter / General Power Measuring Module

    Accura 2300S/2350-1P3FSC User Guide Digital Power Meter / General Power Measuring Module Refer to Accura 2300S/2350 User Guide for details on digital power meters except for the Accura 2350- 1P3FSC module which measures three single-phase feeders at the same time.

  • Page 21: Installation Example

    1. If the rated current exceeds 250 A, you should use Accura 2350-3P-CT5A-75 or Accura 2350-3PSC-CT5A-90 module with external CTs(the secondary current rating: 5 A). Refer to “Accura 2300S/2350 User Guide” for details. 2. It is provided with the product. 4C telephone lines cannot be used. The conducting wire of the 6C telephone line should be at least 0.128 mm...

  • Page 22: Fig 1.4 Installation Of Accura 2350-1P3Fsc (Using Accura 2350-1Pscsh Modules)

    However, in 3P3W mode you can perform three-phase measurements by installing two Accura 2350-1PSCSH modules for phases A and C. Refer to Accura 2300S/2350 User Guide for details. 2. It is provided with the product. 4C telephone lines cannot be used. The conducting wire of the 6C telephone line should be at least 0.128 mm...

  • Page 23: Product Features

    Accura 2300S/2350-1P3FSC User Guide Chapter 1 Introduction Product Features Accura 2300S Digital Power Meter Accura 2300S collects data from multiple Accura 2350 modules connected via the 6C telephone line and displays data on its LCD screen. Accura 2300S Function Voltage Measurement in the Incoming Feeder...
  • Page 24 2. It indicates the line-to-neutral voltage value in 3P4W mode and the line-to-line voltage value in 3P3W mode. 3. The data are unavailable on the LCD screen of Accura 2300S and are only available via communication. 4. The residual voltage is the RMS voltage value calculated by summing the three-phase voltages.
  • Page 25 �� �� 3. The data are unavailable on the LCD screen of Accura 2300S and are only available via communication. �� ∑ ( �� ��...

  • Page 26: Chapter 2 Installation

    Accura 2300S/2350-1P3FSC User Guide Chapter 2 Installation Installation Conditions Accura 2300S/2350 should be mounted in a dry, dirt-free location away from heat sources and very high electric fields. To operate the products properly, the following environmental conditions should be considered.

  • Page 27: Before Installation

    Accura 2300S/2350-1P3FSC User Guide Chapter 2 Installation Before Installation Before installing Accura 2300S/2350, observe the following instructions and safety precautions. Caution You should power up the device after the voltage and current wiring is completed. Product Appearance Fig 2.1 Accura 2300S Front Fig 2.2 Accura 2300S Side...

  • Page 28: Components

    6C telephone line: Four nuts 3 m x 2, 75 cm x 1 Fig 2.6 Accura 2350-1P3FSC Components Accura 2350-1P3FSC Mounting wings Two screws 6C telephone line: 20 cm x 1 Page 28 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 29: Dimensions

    Accura 2300S/2350-1P3FSC User Guide Chapter 2 Installation Dimensions Fig 2.7 Accura 2300S Front Dimensions Fig 2.8 Accura 2300S Side Dimensions Fig 2.9 Accura 2300S Rear Dimensions ⓒ 2015 Rootech Inc. All Rights Reserved Page 29...

  • Page 30: Fig 2.10 Accura 2350-1P3Fsc Module Dimensions

    114.1 82.2 mm Split-core single-phase three-feeder Accura 2350-1P3FSC-125A 53.0 120.0 85.0 mm power measuring module Accura 2350-1P3FSC-125A-DIZCT (excluding mounting wings) Accura 2350-1P3FSC-60A 53.0 100.0 85.0 mm Accura 2350-1P3FSC-60A-DIZCT (excluding mounting wings) Page 30 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 31: Installation Diagram

    1. If the rated current exceeds 250 A, you should use Accura 2350-3P-CT5A-75 or Accura 2350-3PSC-CT5A-90 module with external CTs (the secondary current rating: 5 A). Refer to Accura 2300S/2350 User Guide for details. 2. It is provided with the product. 4C telephone lines cannot be used. The conducting wire of the 6C telephone line should be at least 0.128 mm...

  • Page 32: Fig 2.12 Accura 2350-1P3Fsc Installation Diagram (Using Accura 2350-1Pscsh Module)

    However, in 3P3W mode you can perform three-phase measurements by installing two Accura 2350-1PSCSH modules for phases A(L1) and C(L3). Refer to “Accura 2300S/2350 User Guide” for details. 2. It is provided with the product. 4C telephone lines cannot be used. The conducting wire of the 6C telephone line should be at least 0.128 mm...

  • Page 33: Step 1: Installing The Product

    Step 1: Installing the Product Mounting Accura 2300S on the Panel Accura 2300S is mounted on the front of the industrial control panel. ① Fit the meter into the panel cutout. ② Attach the connector to the side of the meter and then secure the meter to the panel using mounting nuts and washers.

  • Page 34: Mounting Accura 2350-1P3Fsc Power Measuring Module On The Panel

    ① After attaching mounting wings to the side of the module, align the holes on the mounting wings with the desired installation location. ② Tighten the screws to secure the module. Fig 2.14 New Installation of Accura 2350-1P3FSC (Using Mounting Wings) 0.5 mm clearance between devices required Page 34 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 35: Fig 2.15 Mounting Accura 2350-1P3Fsc On The Panel Through Mounting Holes

    Accura 2300S/2350-1P3FSC User Guide Chapter 2 Installation Fig 2.15 Mounting Accura 2350-1P3FSC on the Panel through Mounting Holes (Using Mounting Wings) Applied Model Accura 2350-1P3FSC-125A Accura 2350-1P3FSC-125A-DIZCT Applied Model Accura 2350-1P3FSC-60A Accura 2350-1P3FSC-60A-DIZCT ⓒ 2015 Rootech Inc. All Rights Reserved Page 35...

  • Page 36: Fig 2.16 New Installation Of Accura 2350-1P3Fsc (Using The Lower Part Of The Module)

    ③ Tighten the screws to attach the upper part of the module to the lower part of the module. Fig 2.16 New Installation of Accura 2350-1P3FSC (Using the Lower Part of the Module) Applied Model Accura 2350-1P3FSC-125A Accura 2350-1P3FSC-125A-DIZCT Applied Model Accura 2350-1P3FSC-60A Accura 2350-1P3FSC-60A-DIZCT Page 36 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 37: Fig 2.17 Retrofit Installation Of Accura 2350-1P3Fsc (Securing The Module With Cable Ties)

    ③ Secure the module using cable ties(200 x 4.8 mm). Fig 2.17 Retrofit Installation of Accura 2350-1P3FSC (Securing the Module with Cable Ties) Fixed with 200 x 4.8 mm cable ties ⓒ 2015 Rootech Inc. All Rights Reserved Page 37...

  • Page 38: Fig 2.18 Retrofit Installation Of Accura 2350-1P3Fsc

    ③ Attach the upper part of the module to the lower part of the module. Fig 2.18 Retrofit Installation of Accura 2350-1P3FSC (Securing the Module Using the Lower Part of the Module) 0.5 mm clearance between devices required Page 38 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 39: Step 2: Accura 2300S Wiring

    1. It indicates the device’s input voltage range. Thus, when a PT is used externally, the primary voltage is calculated by multiplying the input voltage by the PT ratio. 2. For Delta connections, do not exceed 480 V ungrounded or 240 V corner grounded. ⓒ 2015 Rootech Inc. All Rights Reserved Page 39...
  • Page 40 Caution Failure to observe the following instructions may result in severe injury or death. During normal operation of Accura 2300S, hazardous voltages are present on its terminal strips that ◼ connect the PT(Potential Transformer), voltage input, power, and external I/O circuits. The secondary of the PT may generate fatal voltages/currents resulting from the primary of the PT.

  • Page 41: Fig 2.20 3-Phase 4-Wire, Direct Connection

    Fig 2.20 3-Phase 4-Wire, Direct Connection Note Select “3P4U(3P4W)” via 「METER > Conn(Voltage connection)」 setup menus. Fig 2.21 3-Phase 4-Wire Connection with 3 PTs Note Select “3P4U(3P4W)” via 「METER > Conn(Voltage connection)」 setup menus. ⓒ 2015 Rootech Inc. All Rights Reserved Page 41...

  • Page 42: Fig 2.22 3-Phase 3-Wire, Direct Connection

    Fig 2.22 3-Phase 3-Wire, Direct Connection Note Select “3P3U(3P3W)” via 「METER > Conn(Voltage connection)」 setup menus. Fig 2.23 Three-Phase 3-Wire Connection with 2 PTs Note Select “3P3U(3P3W)” via 「METER > Conn(Voltage connection)」 setup menus. Page 42 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 43: Fig 2.24 Single-Phase 3-Wire, Direct Connection

    Select “1P3U(1P3W)” via 「METER > Conn(Voltage connection)」 setup menus. Voltages on L1 and L2 should be connected to the V and V ports, and the N line should be connected to the V port. ⓒ 2015 Rootech Inc. All Rights Reserved Page 43...

  • Page 44: Fig 2.26 1-Phase 2-Wire, Direct Connection

    Select “1P2U(1P2W)” via 「METER > Conn(Voltage connection)」 setup menus. The voltage on L1 should be connected to the V port, and the N line should be connected to the V port. Page 44 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 45: Digital Input/Output Wiring Of Accura 2300S

    Accura 2300S/2350-1P3FSC User Guide Chapter 2 Installation Digital Input/Output Wiring of Accura 2300S Fig 2.28 Digital Input/Output Channels on Accura 2300S 2 Digital Input Channels Channel 1 Channel 2 Port name Ground 1. Ground DI is the common terminal for both channels.
  • Page 46 4. It applies when the output polarity is normal. If the output polarity is reversed, the closed and open contacts operate reversely. Note For selection of latch or pulse type, refer to 「Chapter 4 Accura 2300S Operation/Setup > Setup Mode > Digital Input/Output Setup > Digital Output Type」 setup menus. Page 46...

  • Page 47: Fig 2.30 Application Of Dc Relay

    Fig 2.31 Application of AC Relay Note It is recommended to use a clamp diode or varistor to ensure that the rated voltage of the digital output is not exceeded while switching DO operation modes. ⓒ 2015 Rootech Inc. All Rights Reserved Page 47...

  • Page 48: Step 3: Through-Hole Current Wiring Of Accura 2350-1P3Fsc

    Opening the secondary of a current transformer(CT) while current is flowing in its primary winding can lead to serious accidents due to high voltages. Ensure to use UL2808 listed CTs with reinforced insulation approved by US standards. Page 48 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 49: Fig 2.32 Location Of The Cables Passing Through The Holes Of Accura 2350-1P3Fsc Module

    2nd and 3rd feeders, it measures the current flowing from the source to the load in the normal direction. Fig 2.33 Measurement Principle of Accura 2350-1P3FSC [Reverse Direction] [Normal Direction] [Normal Direction] ⓒ 2015 Rootech Inc. All Rights Reserved Page 49...

  • Page 50: Fig 2.34 Through-Hole Wiring In 3P4W Mode

    For further details, refer to “Connection/Load Direction Setup” and “Phase Sequence Setup” accessed via 「Chapter 3 Accura 2350-1P3FSC Operation/Setup > Setup Mode」 menus. Page 50 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 51: Fig 2.35 Through-Hole Wiring In 3P3W Mode

    For further details, refer to “Connection/Load Direction Setup” and “Phase Sequence Setup” accessed via 「Chapter 3 Accura 2350-1P3FSC Operation/Setup > Setup Mode」 menus. ⓒ 2015 Rootech Inc. All Rights Reserved Page 51...

  • Page 52: Step 4: Connecting Accura 2350-1P3Fsc-Dizct Module To Dis/Zct

    Wire specifications / Torque 0.14 – 2.5 mm (26 – 14 AWG), copper / max. 0.34 Nm (3.5 kgf-cm, 3 Ibf-in) Input type Dry contact Isolation status Non-isolated Minimum pulse width 0.5 seconds Page 52 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 53: Fig 2.37 3 Zct Input Channels On The Optional Module

    ±2 % Reading + 2 mA Up to 2 A 1. It indicates the measurement accuracy when the error of the external ZCT is zero. Fig 2.38 Connecting the Optional Module to the External ZCT ⓒ 2015 Rootech Inc. All Rights Reserved Page 53...

  • Page 54: Fig 2.39 Digital Input And Zct Wiring Of Optional Module

    Chapter 2 Installation Accura 2300S/2350-1P3FSC User Guide Fig 2.39 Digital Input and ZCT Wiring of Optional Module Page 54 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 55: Step 5: Connecting Accura 2300S With Accura 2350

    Chapter 2 Installation Step 5: Connecting Accura 2300S to Accura 2350 Accura 2300S collects data from all Accura 2350 modules connected via the 6C telephone line for internal communication and displays the collected data on its LCD screen. Fig 2.40 Example of Connecting Accura 2300S to Accura 2350 for Dedicated Communication...
  • Page 56 Accura 2300S. For details on how to connect Accura 2300S to special-purpose modules, refer to the individual user manuals of special-purpose modules. 4. It indicates the maximum length of the 6C telephone line used to connect Accura 2300S to all Accura 2350 modules through each port(RJ12-1 or RJ12-2) on Accura 2300S.

  • Page 57: Step 6: Connecting Accura 2300S Devices For External Communication

    Ethernet switch that allows two Ethernet ports to be daisy-chained to multiple Accura 2300S meters without the need for a separate external switch. Up to 20 Accura 2300S meters can be connected in a daisy-chain, star, and ring topology. Modbus TCP, one of standard protocols is supported for transmission of measurement data.

  • Page 58: Fig 2.42 Connecting Accura 2300S Devices Via Ethernet Communication

    Star, Daisy-chain, Ring topology Note Accura 2300S provides a lower bridge priority value of 49152(C000h) instead of a default bridge priority value of 32768(8000h). If the bridge priority value of a switch is configured as 32768(8000h), the switch has a higher priority over Accura 2300S.

  • Page 59: Rs-485 Communication

    Max. 32 modules per bus 1. At 115,200 bps, a master can communicate with up to 16 slave devices within a maximum distance of 600 m. Fig 2.44 Connecting Accura 2300S Devices via RS-485 Communication * The shield wire of the RS-48 communication cable should be grounded at only one point to minimize noise caused by loop current.

  • Page 60: Step 7: Accura 2300S Power Supply And Ground Wiring

    (14 – 12 AWG), copper / max. 0.51 Nm (5.2 kgf-cm, 4.5 Ibf-in) Wire temperature rating Above 70 ˚C Note The ground terminal of Accura 2300S is connected to the earth ground of the panel. Page 60 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 61: Chapter 3 Accura 2350-1P3Fsc Operation/Setup

    Function Display mode Displays module IDs and measured values(current, power, energy, etc.) automatically. By configuring the display mode settings on Accura 2300S device, users can specify which measured values appear on the screens of all Accura 2350 modules. Setup mode Configures the module ID, phase sequence/load direction, and so on.

  • Page 62: Front View

    ID of the module available for communication Conflict ID Duplicate IDs There are more than 2 identical IDs. communication unavailable Standby ID ID 255 Module ID for checking connection status, communication unavailable Page 62 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 63: Display Mode

    When “oFF” is selected on the screen, leakage current is not measured, and the screen is also not displayed. 3. It is displayed for 4 seconds on Accura 2350-1P3FSC-DIZCT module. 4. It is displayed twice on Accura 2350-1P3FSC module. ⓒ 2015 Rootech Inc. All Rights Reserved Page 63...

  • Page 64: Setup Mode

    If there is no button operation for 10 seconds in setup mode, the screen automatically returns to display mode. If there is no button operation for 25 seconds when changing setup values, the screen automatically returns to display mode. Page 64 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 65 You can manually assign IDs to Accura 2350 modules using the SET button or automatically assign module IDs to all Accura 2350 modules connected to Accura 2300S. For more details, refer to 「Chapter 4 Accura 2300S Operation/Setup > Setup Mode > Accura 2350 Module ID Setup > Automatic Assignment of Module IDs」.
  • Page 66 Load direction: left side of the ICP ULN : Line-to-Neutral Voltage Line-to-neutral voltage wiring Ld ◄◄ : Load Connection Load direction: left side of the ICP ULL : Line-to-Line Voltage Line-to-line voltage wiring Page 66 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 67 Fd.2 : Feeder 2 Phase sequence configuration for feeder 2 bn (B→N, default) B-N line-to-neutral voltage wiring Fd.3 : Feeder 3 Phase sequence configuration for feeder 3 cn (C→N, default) C-N line-to-neutral voltage wiring ⓒ 2015 Rootech Inc. All Rights Reserved Page 67...
  • Page 68 Fd.2 : Feeder 2 Phase sequence configuration for feeder 2 bc (B→C, default) B-C line-to-line voltage wiring Fd.3 : Feeder 3 Phase sequence configuration for feeder 3 ca (C→A, default) C-A line-to-line voltage wiring Page 68 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 69 The rated current can be only set to a (default: basic current) value smaller than the basic current. 1. It applies when the C phase is selected in line-to-neutral connection mode. ⓒ 2015 Rootech Inc. All Rights Reserved Page 69...
  • Page 70 Accura 2300S. The threshold value of leakage current can be set through the LCD screen of Accura 2300S or via communication. When set through Accura 2300S, the threshold value applies uniformly to all Accura 2350 modules connected to Accura 2300S.
  • Page 71 If the leakage current measurement item is set to “oFF”, setup values for leakage current events are invalid. When the leakage current event item is set to “on”, events are logged in the event log of Accura 2300S when the measured leakage current exceeds the threshold value and an event occurs. Leakage current event settings are applied uniformly to all ZCTs installed on the feeder 1, 2 and 3.
  • Page 72 Description oFF (default) Event detection is disabled. CLS : Closed Event on the closed contact oPN : Open Event on the open contact bth : Both Event on the closed/open contacts Page 72 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 73: Chapter 4 Accura 2300S Operation/Setup

    1. At the bottom of the LCD screen, columns are displayed to help easily identify the current position on the screen. Column positions are displayed differently between display mode and setup mode. LED Display The 4 LEDs placed at the bottom left of the front panel display the operation states of Accura 2300S. LED Name Color...

  • Page 74: Button Operation

    Fig 4.2 Screen in Display Mode To set up and check setup items, including the connection mode of Accura 2300S, PTs, events, Ethernet and RS-485 communication, long-press the SETUP button and change the display mode to the setup mode.

  • Page 75: Fig 4.4 Screen In Event Mode

    EVENT button even when any event does not occur. In the event Event mode, the segment appearing in the menu bar at the top of the screen lights up. Fig 4.4 Screen in Event Mode ⓒ 2015 Rootech Inc. All Rights Reserved Page 75...

  • Page 76: Display Mode

    1. d → decimal number. The number in the tens place cannot exceed 3. The LCD screen displays the measurement data of the module ID selected among multiple Accura 2350 modules connected to Accura 2300S. 2. The MODULE LED blinks during communication between Accura 2300S and Accura 2350 modules.

  • Page 77: Fig 4.6 Temperature Sensor On Accura 2300S

    2. Accura 2350 module’s ID is used as a communication ID when communicating with Accura 2300S. Time Required for a Startup It takes about 1 minute to start Accura 2300S after powering up the device. During the time, measurement values are not displayed on LCD screen.

  • Page 78: Selecting The Id Of Accura 2350 Module

    Selecting the ID of Accura 2350 Module Among multiple Accura 2350 modules connected to Accura 2300S, users can select the ID of Accura 2350 module for which measurement values are displayed on the LCD screen of Accura 2300S. If you long press the ENTER button in the display mode, the module ID displayed at the upper left side of the screen blinks at 0.4-second intervals, and the module ID can be changed using the Up(＾)/Down(ｖ) arrow...
  • Page 79 LCD screen. Note The module ID blinks in the following cases: ① Blinks at 1.2 second intervals when Accura 2300S cannot properly communicate with Accura 2350 due to - the disconnection of the communication cable(6C telephone line) - the change of the module ID - duplicate IDs ②...

  • Page 80: Full Display Screen

    Chapter 4 Accura 2300S Operation/Setup Accura 2300S/2350-1P3FSC User Guide Full Display Screen The following screen displays measurement data on Accura 2300S and the selected Accura 2350-1P3FSC module. 1. Leakage current and digital input data are only available on Accura 2350-1P3FSC-DIZCT module.

  • Page 81: Measurement Of Voltage/Current/Power

    THD, and the frequency values sequentially. You can see measurement data in the reverse order by pressing the Up(＾) arrow button. ⓒ 2015 Rootech Inc. All Rights Reserved Page 81...

  • Page 82: Measurement Of Current

    You can see measurement data in the reverse order by pressing the Up(＾) arrow button. Page 82 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 83: Measurement Of Demand

    Up(＾) arrow button. Net energy is the value obtained by subtracting delivered energy from received energy, and the total energy is the sum of received energy and delivered energy. ⓒ 2015 Rootech Inc. All Rights Reserved Page 83...

  • Page 84: Measurement Of Leakage Current

    1 through channel 4. A closed input is displayed as ㅁ, and an open input is displayed as _. If there is no Accura 2350-1P3FSC-DIZCT module, the display screen switches to the Ethernet information screen immediately. Fig 4.15 Leakage Current Display Screen Page 84 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 85: Ethernet Information

    Connecting Port connected. Determines the roles of the RSTP No connection Port disconnected. 1. For detailed description of terms, refer to the RSTP(Rapid Spanning Tree Protocol) as defined by IEEE 802.1D-2004. ⓒ 2015 Rootech Inc. All Rights Reserved Page 85...

  • Page 86: Temperature/Date & Time

    You can navigate to the temperature / date & time screen by pressing the Right(>) arrow button on the Ethernet screen. On this screen, you can check the temperature measured by the built-in temperature sensor located at the back of Accura 2300S, as well as the current date and time. Fig 4.17 Temperature Display Screen Page 86 ⓒ...

  • Page 87: Setup Mode

    If there is no button operation for 10 minutes in the setup mode, the screen automatically returns to the display mode. If there is no button operation for 1 minute when changing set values, the screen automatically returns to the setup mode. ⓒ 2015 Rootech Inc. All Rights Reserved Page 87...

  • Page 88: Full Screen In Setup Mode

    Chapter 4 Accura 2300S Operation/Setup Accura 2300S/2350-1P3FSC User Guide Full Screen in Setup Mode Page 88 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 89: Measurement Setup

    3-phase 3-wire Open-Delta (3P3O) 1. 3P3O is the setup menu for old Accura 2300S models that do not support the 3P3W connection mode. Thus, even if the connection mode is set to 3P3O, it operates in the same way as the 3P3W connection mode.

  • Page 90: Secondary

    The L1 voltage should be connected to the V port, and the N line should be connected to the V port. In 1-phase 2-wire mode, line-to-line and line-to-neutral voltage values are the same. Page 90 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 91 * the set line-to-line voltage value ⁄ Line-to-neutral Reference(line-to-neutral) voltage voltage(V = 1* the set line-to-neutral voltage value 1-phase 2-wire Line-to-neutral Line-to-neutral Reference(line-to-neutral) voltage (1P2W) voltage voltage(V = 1* the set line-to-neutral voltage value ⓒ 2015 Rootech Inc. All Rights Reserved Page 91...
  • Page 92 Number of demand subintervals Demand Sync Method Accura 2300S supports two methods for synchronizing the starting time of a demand subinterval: hourly auto sync and manual sync. Hourly auto sync allows the demand subinterval to automatically start every hour. Manual sync allows users to manually start the demand subinterval at the moment users issue a sync command.
  • Page 93 Calculation with RMS values Calculation of Total Power Accura 2300S supports two methods for calculating the total power based on power per phase. One method calculates the total power based on the vector sum of 3-phase apparent power. And the other method calculates the total power based on the arithmetic sum of magnitudes of 3-phase apparent power vectors.
  • Page 94 1,000 and converting them into integer values. Setup Range Description 1 kWh (default) Energy is accumulated in kWh. 1000 Wh Energy is accumulated in Wh. Page 94 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 95: Event Setup

    * the set line-to-line voltage value ⁄ Line-to-neutral Reference(line-to-neutral) voltage voltage(V = 1* the set line-to-neutral voltage value 1-phase 2-wire Line-to-neutral Line-to-neutral Reference(line-to-neutral) voltage (1P2W) voltage voltage(V = 1* the set line-to-neutral voltage value ⓒ 2015 Rootech Inc. All Rights Reserved Page 95...

  • Page 96: Fig 4.22 Dip Event Setup(3-Phase 4-Wire)

    Fig 4.22 Dip Event Setup(3-Phase 4-Wire) Reference voltage: set to 380 V line- to-line voltage (converted to the reference voltage: line-to-neutral) Fig 4.23 Dip Event Setup(3-Phase 3-Wire) Reference voltage: set to 380 V line- to-line voltage Page 96 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 97 * the set line-to-line voltage value ⁄ Line-to-neutral Reference(line-to-neutral) voltage voltage(V = 1* the set line-to-neutral voltage value 1-phase 2-wire Line-to-neutral Line-to-neutral Reference( Line-to-neutral) voltage (1P2W) voltage voltage(V = 1* the set line-to-neutral voltage value ⓒ 2015 Rootech Inc. All Rights Reserved Page 97...

  • Page 98: Fig 4.24 Swell Event Setup(3-Phase 4-Wire)

    Fig 4.24 Swell Event Setup(3-Phase 4-Wire) Reference voltage: set to 380 V line-to- line (converted to the reference voltage: line-to-neutral) Fig 4.25 Swell Event Setup(3-Phase 3-Wire) Reference voltage: set to 380 V line-to- line Page 98 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 99 Event detection is enabled. Temperature Event Temperature measured by the temperature sensor at the rear of Accura 2300S varies based on the number of Accura 2350 modules connected to Accura 2300S. The measured temperature may differ from the actual temperature inside industrial control panels, thus setting temperature thresholds requires caution.
  • Page 100 Start threshold expressed as a percentage (default 100.0 %) The reference current for the percentage is the rated current of each Accura 2350 module. Commonly applied to all Accura 2350 modules. Page 100 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 101 Exit the edit mode and navigate to the previous setup mode. Commonly applied to all Accura 2350 modules. Users can set on or off status on each Accura 2350 module. ⓒ 2015 Rootech Inc. All Rights Reserved Page 101...
  • Page 102 If it is set to “off”, the screen immediately switches to the power event setup screen. Setup Range Description oFF (default) Event detection is disabled. Event detection is enabled. Commonly applied to all Accura 2350 modules Page 102 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 103 Commonly applied to all Accura 2350 modules In each voltage connection mode, the reference power is determined by the reference voltage as follows. The reference voltage can be set via 「METER > UrEF(Reference Voltage)」 setup menus. ⓒ 2015 Rootech Inc. All Rights Reserved Page 103...
  • Page 104 Delay time for the power event [s] 0: If it is set to 0, it indicates the delay time for the power event is 0.5 seconds. Commonly applied to all Accura 2350 modules Page 104 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 105 Accura 2350-1P3FSC-DIZCT module features 4 Digital Inputs(DIs), and events can be configured for each contact input. Settings configured via Accura 2300S are uniformly applied to all Accura 2350-1P3FSC- DIZCT modules connected to Accura 2300S. DI event setup for each module can be performed through communication or directly on the module.

  • Page 106: Accura 2350 Module Id Setup

    Updates module IDs by long-pressing the Right(>) arrow button 1. cn(Communication): Accura 2300S communicates with Accura 2350 in real time through the update of module IDs. 2. cF(Conflict): It indicates the number of Accura 2350 modules with duplicate ID(ID conflicts) or standby ID.
  • Page 107 1. The standby ID used to detect connection status is assigned to all Accura 2350 modules as the factory default value. 2. If a specific ID is already assigned to a module, it is excluded when performing automatic ID assignment. ⓒ 2015 Rootech Inc. All Rights Reserved Page 107...
  • Page 108 1. The standby ID used to detect connection status is assigned to all Accura 2350 modules as the factory default value. 2. If a specific ID is already assigned to a module, it is excluded when performing automatic ID assignment. Page 108 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 109 Status where specific IDs are assigned to Accura 2350 Status where the standby IDs are assigned modules 1. The standby ID used to detect connection status is assigned to all Accura 2350 modules as the factory default value. ⓒ 2015 Rootech Inc. All Rights Reserved Page 109...

  • Page 110: Ethernet Communication Setup

    255.255.000.000 – 255.255.255.252 Subnet mask (default: 255.255.255.000) Gateway Setup Range Description 000.000.000.000 – 255.255.255.255 Gate way (default: 010.010.010.001) Mac Address Setup Range Description [h][h].[h][h] MAC address [h][h].[h][h] [h][h].[h][h] 1. h → hexadecimal number Page 110 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 111 ENTER button again to stop the blinking of “Sync,” time sync is complete. IP Address of NTP Server Enter the IP address of the NTP(Network Time Protocol) server for time synchronization of Accura 2300S. Setup Range Description 000.000.000.000 – 255.255.255.255 IP address of the NTP server (default: 010.010.010.001)
  • Page 112 Accura 2300S/2350-1P3FSC User Guide DHCP Setup Range Description oFF (default) DHCP is disabled. DHCP is enabled. Storm Control Setup Range Description oFF (default) Storm control is disabled. Storm control is enabled. Page 112 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 113: Rs-485 Communication Setup

    Description [d][d][d] (default 0) 0, 1 – 247 To read Accura 2300S’ measurement values via RS-485 communication, the device address must be set to a valid value other than 0. 1. d → decimal number RS-485 Communication Map ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 114 (same as Accura 2300’s map) r050 RTM050’s map If the RS-485 communication map is set to r050, it is possible to perform communication with the map used for the RTM050 device. Page 114 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 115: Reset Configuration

    Resets the maximum/minimum values Peak demand is also reset. Energy Reset Setup Range Description rESEt Resets energy(kWh, kVARh, kVAh) values All Reset Setup Range Description rESEt Resets all parameters (Demand, Maximum/Minimum, and Energy) ⓒ 2015 Rootech Inc. All Rights Reserved Page 115...
  • Page 116 A demand time sync command is issued so that the demand sub-interval can start at the end of the demand sync operation. It works only when the demand sync mode is set to manual sync. Page 116 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 117: Digital Input/Output Setup

    2. The duty cycle of a pulse features the pulse period and the pulse on time. 3. It applies when the polarity of the output is set to “Normal”. If “Reverse” is selected, the closed contact and the open contact operate reversely. ⓒ 2015 Rootech Inc. All Rights Reserved Page 117...
  • Page 118 If the digital output type is set to countable pulse(PuLS.C), the screen switches to the setup screen for the accumulated energy parameter. Page 118 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 119 For all the events mentioned above, the Event LED operates with the OR logic. Therefore, if you select “Event LED,” the digital output operates even when any of the above events occurs. ⓒ 2015 Rootech Inc. All Rights Reserved Page 119...
  • Page 120 Description [d][d].[d][d] (default 1.00) 0.01 – 99.99 Unit: kWh, kVARh when energy unit is set to Unit: Wh, VARh when energy unit is set to Wh 1. d → decimal number Page 120 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 121 When DO polarity is reverse The contact is closed. The contact is open. Event on DI Channel 1 Accura 2300S supports 2 digital input channels. Event setup of the DI channel 1 is as follows. Setup Range Description oFF (default)

  • Page 122: Display Setup

    Chapter 4 Accura 2300S Operation/Setup Accura 2300S/2350-1P3FSC User Guide Event on DI Channel 2 Accura 2300S supports 2 digital input channels. Event setup of the DI channel 2 is as follows. Setup Range Description oFF (default) No event cLoSE The contact is closed.
  • Page 123 L 0 – 99 % (default 0 %) Setup for the lowest brightness If the blinking of the LCD backlight is enabled, it blinks alternatively at the highest brightness and medium brightness. ⓒ 2015 Rootech Inc. All Rights Reserved Page 123...
  • Page 124 3-phase unbalance demo mode is enabled. dIP.S Short dip demo mode is enabled. dIP.L Long dip demo mode is enabled. SUL.S Short swell demo mode is enabled. SUL.L Long swell demo mode is enabled. Page 124 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 125: Information

    1. d → decimal number Application Version Display Description [d].[d].[d][d][d] Software version of the CPU Application 1. d → decimal number Firmware Version Display Description [d].[d].[d][d][d] MCU firmware version 1. d → decimal number ⓒ 2015 Rootech Inc. All Rights Reserved Page 125...

  • Page 126: Event Mode

    Event Mode Start Event and End Event Accura 2300S generates a start event when power quality events such as Dip(Sag), Swell, and Fuse Fail events are triggered based on the configured conditions. It also generates an end event when the measured value returns to a normal state.

  • Page 127: Button Function

    2. Press the button for more than one second. A beeping sound occurs in one second. Note If there is no button operation for 10 minutes in the event mode, the screen automatically returns to the display mode. ⓒ 2015 Rootech Inc. All Rights Reserved Page 127...

  • Page 128: Event Log Number

    The newest event log Event Timestamp You can check the timestamp of the selected event by pressing the Down(ｖ) arrow button when the event log screen is selected using the Left(<)/Right(>) arrow buttons. Page 128 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 129: Dip Event Log

    2. It indicates the information on the phase or line-to-line where the event occurred. In 3P4W mode, the phase (A, B, C) is displayed, but in 3P3W mode, the line-to-line(AB, BC, CA) voltage is displayed. ⓒ 2015 Rootech Inc. All Rights Reserved Page 129...

  • Page 130: Fuse Fail Event Log

    Fuse fail end event occurs on A phase. End event [d][d][d][d][d] ms Fuse fail duration time [ms] 1. d → decimal 2. It indicates the phase (A, B, C) where the event occurred. Page 130 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 131: Temperature Event Log

    (A phase). [d][d][d][d] A Current [A] measured when an event occurs 1. d → decimal 2. It indicates the feeder(1, 2, 3) and the phase(A, B, C) where the event occurred. ⓒ 2015 Rootech Inc. All Rights Reserved Page 131...

  • Page 132: Leakage Current Event Log

    Maximum Leakage current [A] measured during the event [d][d][d][d][d] ms Leakage current event duration time [ms] 1. d → decimal 2. It indicates the feeder(1, 2, 3) where the event occurred. Page 132 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 133: Demand Current Event Log

    (B phase [d][d][d][d] kW Power [kW] measured when an event occurs 1. d → decimal 2. It indicates the feeder(1, 2, 3) and the phase (A, B, C) where the event occurred. ⓒ 2015 Rootech Inc. All Rights Reserved Page 133...

  • Page 134: Di Event Log

    2. It indicates the digital input channel(1, 2, 3, and 4) where the event occurred. No Event Log If there is no saved event log, the following text is displayed. Display Description Пo No event log Eunt Page 134 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 135: Necessary Steps For Device Setup

    The following settings are required for Accura 2300S to operate properly. Step 1: Setup for the Voltage Wiring of Accura 2300S and PT Rating Set the voltage connection mode and PT rating(when using external PTs). If there is no external PT used, enter the same line-to-line voltage values for the primary voltage and the secondary voltage.

  • Page 136: Step 2: Automatic Assignment Of Accura 2350 Module Ids And Update Of Ids

    Accura 2300S automatically assigns IDs to all connected Accura 2350 modules as shown in the following steps and updates the module IDs. Refer to 「Chapter 4 Accura 2300S Operation/Setup > Setup Mode > Accura 2350 Module ID Setup」 for details about how to automatically assign IDs to connected modules.
  • Page 137 Accura 2350 modules), module IDs are automatically assigned only to Accura 2350 modules with standby – IDs. This excludes the Accura 2350 modules that already have specific module IDs (ID 0 39). ⓒ 2015 Rootech Inc. All Rights Reserved Page 137...
  • Page 138 These Accura 2350 modules cannot communicate with Accura 2300S. 4. to(Total): It indicates the total number of all Accura 2350 modules that are connected to Accura 2300S. 5. When Accura 2300S and 2350 are connected, the number of Accura 2350 modules are automatically detected and displayed.

  • Page 139: Step 3: Ethernet Setup Of Accura 2300S

    Accura 2300S/2350-1P3FSC User Guide Chapter 4 Accura 2300S Operation/Setup Step 3: Ethernet Setup of Accura 2300S Step 3-1 IP, Subnet Mask, and Gateway Setup for Accura 2300S ① Long-press SETUP button. → Go to setup mode. ② Press Left(<) or Right(>) arrow button to move to “IP(IP Address)” of “NETWORK”...

  • Page 140: Chapter 5 Measurements

    Chapter 5 Measurements Measurement Parameters The general measurement parameters of Accura 2300S are shown in the following table. Some of the parameters are provided only via communications. The LCD screen on the front of the device provides measurement values obtained at 2-second aggregation intervals based on the measurement values obtained at a frame of 0.5 seconds.
  • Page 141 ������ ��=1 �� 7. Leakage current measurement is supported only on Accura 2350-1P3FSC-DIZCT module. 8. The maximum/minimum values of the power factor are the absolute maximum/minimum values of the power factor. ⓒ 2015 Rootech Inc. All Rights Reserved Page 141...

  • Page 142: Measurement Events

    Chapter 5 Measurements Accura 2300S/2350-1P3FSC User Guide Measurement Events The following table shows the parameters for the measurement events provided by Accura 2300S’ screen and communication. Accura 2300S provides detailed information on the last 100 events through event Event logs. In the event mode, the segment in the top menu bar lights up to indicate the event mode.

  • Page 143: User-Defined Events

    You can set up the backlight operation mode when an event occurs. Fig 5.1 Block Diagram of User-Defined Events ⓒ 2015 Rootech Inc. All Rights Reserved Page 143...

  • Page 144: Voltage Wiring

    (N terminal voltage) – V – V Available Measurement Values Item L-N Voltage(rms) L-L Voltage(rms) Current(rms) Active Power A Phase * PF B Phase * PF C Phase * PF Average/Total Page 144 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 145: 3-Phase 3-Wire Connection

    Voltage Wiring In 3-phase 3-wire mode, you can use 2 or 3 PTs(Potential Transformer). The installation cost varies based on the number of PTs used. However, regardless of the number of PTs, Accura 2300S measures voltage signals in the same manner.
  • Page 146 However, by using a virtual neutral point where the residual voltage value of the three phase voltages becomes zero, voltage and power values for each phase can be calculated. Page 146 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 147: 1-Phase 3-Wire Connection

    = 0 (The value becomes 0 in 1P3W mode.) – V Available Measurement Values Item L-N Voltage(rms) L-L Voltage(rms) Current(rms) Active Power A Phase * PF B Phase C Phase * PF Average/ Total ⓒ 2015 Rootech Inc. All Rights Reserved Page 147...

  • Page 148: 1-Phase 2-Wire Connection

    = 0 (The value becomes 0 in 1P2W mode.) = 0 (The value becomes 0 in 1P2W mode.) Available Measurement Values Item L-N Voltage(rms) L-L Voltage(rms) Current(rms) Active Power A Phase * PF B Phase C Phase Average/Total Page 148 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 149: Measurement Of Voltage Dips(Sags)/Swells

    1 Cycle RMS Measurement with Half-Cycle Sliding Window Accura 2300S measures the RMS voltage over 1 cycle using a half-cycle sliding window. The time resolution for the RMS value is one half cycle. Dips(Sags)/Swells are detected based on the RMS value measured over 1 cycle.

  • Page 150: Leakage Current Measurement

    0.5 seconds. Residual Voltage Measurement The residual voltage(Vrsd) is the RMS value calculated by summing the sampled 3-phase voltages, including residual voltage from harmonic components. �� = ∑ �� ������ ��,��,�� Page 150 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 151: Measurement Of Power Per Phase

    The sign of the reactive power is the same as the sign of the reactive power calculated with fundamental frequency components. where k=a,b,c �� = ±√�� − �� �� �� �� ⓒ 2015 Rootech Inc. All Rights Reserved Page 151...

  • Page 152: Power Factor(Pf) Measurement

    Note If the current leads or lags the voltage by a phase angle, the power factor is displayed as LEAD or LAG on the front screen of Accura 2300S. the reactive power is zero, this information is not displayed. When Page 152 ⓒ...

  • Page 153: Demand Measurement

    Using this average value, the predicted demand value at the end of the demand subinterval is calculated. Fig 5.10 Predicted Demand Calculation ⓒ 2015 Rootech Inc. All Rights Reserved Page 153...

  • Page 154: Fig 5.11 Hourly Auto Sync

    Accura 2300S/2350-1P3FSC User Guide Demand Sync Accura 2300S supports two methods for synchronizing the starting time of a demand subinterval. 1) Hourly Auto Sync: automatically synchronizes the starting time of a demand subinterval every hour 2) Manual Sync: synchronizes the starting time of a demand subinterval at the moment users issue a sync command For hourly auto sync, synchronization is performed every 60 minutes.

  • Page 155: Voltage Harmonics

    × 100 [ % ] ������, ������ VLL,avg : Average value of line-to-line voltages Max( VLL) : Maximum difference between the line-to-line voltage and the average line-to-line Δ voltage ∣Line-to-line voltage - the average voltage∣ ⓒ 2015 Rootech Inc. All Rights Reserved Page 155...

  • Page 156: Negative-Sequence/Zero-Sequence Unbalance

    �� Zero-Sequence Unbalance It is the ratio between the magnitudes of the zero-sequence component and the positive-sequence component. �� × 100 [ % ] �������� − ���������������� ������������������ ���������� = �� Page 156 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 157: Aggregation

    Accura 2300S/2350-1P3FSC User Guide Chapter 5 Measurements Aggregation Accura 2300S/2350 process voltage/current signals every 0.5 seconds and provide measured data at 0.5- second intervals. For general measurement parameters including voltage, current, power, and special modules’ analog input and output data, Accura 2300S provides average, maximum, and minimum values within an aggregation interval.
  • Page 158 Accura 2300S/2350-1P3FSC User Guide Fixed Aggregation Accura 2300S provides six aggregation intervals from Aggregation 1 through 6 (1 second, 5 seconds, 1 minute, 5 minutes, 1 hour, and 6 hours). In the fixed aggregation intervals, the offset time for the start of the interval is always zero.
  • Page 159 Users can select an aggregation interval to collect data via communication using the Modbus map. Because the aggregated data are stored in the circular buffer of Accura 2300S for a certain period of time, users can flexibly collect aggregated measurement values.

  • Page 160: Appendix A Specifications

    Port name Ta(TRX+), Tb(TRX-), (Ground) Connector type Screw-type terminal (pluggable) Protocol Modbus RTU Communication cable specs UL2919 RS-485 1P/2P, 0.25 – 4.0 mm (24 – 12 AWG), Braided shielded twisted pairs Page 160 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 161 , magnitude of each harmonic Unbalance Line-to-neutral/Line-to-line voltage unbalance as per NEMA standard Voltage unbalance according symmetrical component(negative-/zero-sequence components) General Temperature sensor Located at the rear of the device Weight 487 g ⓒ 2015 Rootech Inc. All Rights Reserved Page 161...
  • Page 162 (26 AWG). It is recommended to keep a distance of over 5 mm from the power lines generating high levels of noise. 5. It indicates the maximum length of the 6C telephone line used to connect Accura 2300S to all Accura 2350 modules through each port(RJ12-1 or RJ12-2) on Accura 2300S.
  • Page 163 Accura 2350-1P3FSC-60A-DIZCT 11.8 x 21.8 404 g Mounting wing Internal Communication Dedicated Connected to Accura 2300S or other Accura 2350 modules via the 6C telephone line communication Number of communication ports 2 (RJ12A, RJ12B) Digital Input Port name , DI...
  • Page 164 �� �� 6. The data are unavailable on the LCD screen of Accura 2300S and are only available via communication. �� ∑ ( �� ��...

  • Page 165: Appendix B Standards

    UL 61010-1 3rd edition, UL 61010-2-030 EN 55011:2009/A1:2010, EN IEC 61326-1:2021, EN IEC 61326-2-1:2021, EN IEC 61000-3-2:2019/A1:2021, EN 61000-3-3:2013/A2:2021 EN 55011:2009/A1:2010, EN IEC 61326-1:2021, EN IEC 61326-2-1:2021 General Warranty period 2 years ⓒ 2015 Rootech Inc. All Rights Reserved Page 165...

  • Page 166: Iec 61557-12:2018 Performance Measuring And Monitoring Devices(Pmd)

    Crest Factor Class 0.2 Class 0.5 (Harmonic) PMD Sx 10 % In – Imax 45 Hz to 15 times ±0.2 % ±0.5 % rated frequency PMD Dx 20 % Ib – Imax Page 166 ⓒ 2015 Rootech Inc. All Rights Reserved...
  • Page 167 PMD Sx 50 % Un – Umax 20 % Ib – Imax 10 % In – Imax 0.5 inductive – ±0.005 0.8 capacitive 1. There is no unit for the value. ⓒ 2015 Rootech Inc. All Rights Reserved Page 167...

  • Page 168: Iec 62053-22:2020 Static Meters For Ac Active Energy (Classes 0.1S, 0.2S And 0.5S)

    1. It is the value measured by externally installing CTs. 2. The Imin value for Class 1S is 1 % In, and the Imin value for Class 1 is 2 % In. Page 168 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 169: Appendix C Accuracy/Reliability

    4. Ib indicates the basic current of Accura 2350-1P3FSC modules. 5. The data are not displayed on the LCD screen of Accura 2300S and provided only via communication. 6. It is available only on Accura 2350-1P3FSC-DIZCT module. It indicates the measurement accuracy when the error of the external ZCT is zero.

  • Page 170: Reliability

    Power frequency magnetic field immunity test 30 A/m IEC 61000-4-11 Voltage dips, short interruptions and voltage Voltage dip, reduction 100/60/30 %, variations Period R1/12/30 Short interruptions, reduction 100 %, Period 300 Page 170 ⓒ 2015 Rootech Inc. All Rights Reserved...

  • Page 171: Appendix D Line-To-Neutral Voltage For Common Main Supply Systems

    220, 230, 240 240/440 230/400 260, 277, 347 240/480 240/415 380, 400, 415 260/440 440, 480 277/480 Refer to 「Chapter 5 Measurements > Voltage Wiring” for auxiliary connections for sensing voltage signals. ⓒ 2015 Rootech Inc. All Rights Reserved Page 171...
  • Page 172 1P3FSC 125A Accura 2350 1P3FSC 125A DIZCT Accura 2350 1P3FSC Accura 2350 1P3FSC DIZCT 1. To purchase the ZCT, please contact Rootech Inc. Special-Purpose Modules Accura 2350 Type Range Description Accura 2350 GAS module Accura 2350 GW(Gateway) module Accura 2350...
  • Page 174 Accura 2300/2350, Accura 2300S/2350, Accura 2300S/2350-1P3FSC, Accura 2500/2550, Accura 2700/2750, Accura 3000, Accura 3300E, Accura 3500/3550/3500E, Accura 3700, Accura 5500, and Accura 7500 are trademarks of Rootech Inc. Contact us for detailed product specifications and ordering information. Information contained herein is subject to change...

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