YOKOGAWA PR300 User Manual
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YOKOGAWA PR300 User Manual

YOKOGAWA PR300 User Manual

Power and energy meter
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User's
Manual
Model PR300
Power and Energy Meter
IM 77C01E01-01E
IM 77C01E01-01E
5th Edition

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Summary of Contents for YOKOGAWA PR300

  • Page 1 User’s Manual Model PR300 Power and Energy Meter IM 77C01E01-01E IM 77C01E01-01E 5th Edition...

  • Page 2: Introduction

    This manual is intended for personnel in charge of the installation and wiring, instrumentation and control equipment, maintenance of equipment, and operation and monitoring. I Related Documents The following user’s manuals all relate to the PR300 Power and Energy Meter. Read them as necessary. Printed manuals Model PR300 Power and Energy Meter Startup Manual <Installation>...

  • Page 3: Notices

    • Read this manual carefully to gain a thorough understanding of how to operate this product before you start using it. • This manual is intended to describe the functions of this product. Yokogawa Electric Corporation (hereinafter referred to as Yokogawa) does not guarantee that these functions are suited to the particular purpose of the user.

  • Page 4: Checking The Package

    • Yokogawa does not make any warranties regarding the product except those mentioned in the WARRANTY that is provided separately. • Yokogawa assumes no liability to any party for any loss or damage, direct or indirect, caused by the use or any unpredictable defect of the product.
  • Page 5 (Installation/Initial Setup Operations) termination) (6) Tag number labels Item Name Remarks (1) JIS/ANSI-mounting kit Bezel Used to mount the PR300 according to the ANSI 4-inch round Panel-mounting bracket form size or JIS110-square instrument size. Panel-mounting bolts Bracket-fixing screws Flat washers Spring washers...

  • Page 6: Table Of Contents

    Other Wiring ..........................1-8 Attaching the Dust Cover and Terminal Cover ..............1-9 Chapter 2 Preparations before Starting Measurement (Set up the PR300 First) Component Names and Functions ..................2-1 Setting the Phase and Wire System ................... 2-2 Range of Phase and Wire System Options ................2-3 Setting the Voltage Range ....................
  • Page 7 Chapter 5 Troubleshooting Error Display and Recommended Response ..............5-1 Maintenance ........................5-2 Appendix Appendix 1 Specifications of PR300 ..................A-1 Measuring Function ........................A-1 Power Items and Equations ....................... A-2 Input Specifications ........................A-2 Digital Input Specifications ......................A-3 Analog Output Specifications (additional output function) ............

  • Page 8: Chapter 1 Installation And Wiring

    1.1 Installation with the ANSI 4-inch Round Form or JIS 110-square Instrument Size The PR300 can be installed so that it handles ANSI 4-inch round form or JIS 110-square instruments panel cutouts by attaching the “JIS/ANSI-mounting kit” accessory. External Dimensions Unit: mm (126.5)

  • Page 9: Mounting Method

    NOTE WARNING G Install the PR300 in the secondary side G Do not install the PR300 in the following types of of the existing breaker. environments, as they may cause the PR300 to G Provide spacing of 50 mm or more malfunction or fail.

  • Page 10: Installation With The Din 96-Square Instrument Size

    (68) 160 min. When installing the PR300, provide spacing of 50 mm or more between each face of the PR300 body and the instrument next to the PR300 or between each face and the wall surface. G Normal Allowable Deviation =...

  • Page 11: Mounting Method

    NOTE WARNING G Install the PR300 in the secondary side G Do not install the PR300 in the following types of of the existing breaker. environments, as they may cause the PR300 to G Provide spacing of 50 mm or more malfunction or fail.

  • Page 12: Wiring

    G For safety, be sure to install a circuit breaker switch that conforms to an IEC60947-compatible product, 5 A, 100 V or 220 V AC near the PR300 so as to be operated easily, and clearly indicate that the device is used to de-energize the PR300.

  • Page 13: Single-Phase Two-Wire System (Voltage Input, Current Input, Power Supply)

    Wiring Single-phase two-wire system (voltage input, current input, power supply) Power-source side NOTE Do not ground the input circuit when connecting Refer to voltage and current directly “Other Wiring” without using VT and CT. Power supply Power supply voltage 100-240V AC 10% or 130-300V DC Fuse...

  • Page 14: Three-Phase Four-Wire System (Voltage Input, Current Input, Power Supply)

    Wiring Three-phase four-wire system (voltage input, current input, power supply) Power-source side NOTE Do not ground the input circuit when connecting Refer to voltage and current directly “Other Wiring” without using VT and CT. Power supply Power supply voltage 100-240V AC 10% or 130-300V DC Fuse...

  • Page 15: Other Wiring

    100Mbps RS-485 communication interface is used specifically for the Ethernet-serial gate- Active LED way function. 10BASE-T Color Orange Green *2 In the case of the PR300 with the 100BASE-TX demand measuring function, the demand Half Full Description Stopped duplex duplex alarm release is selected.

  • Page 16: Attaching The Dust Cover And Terminal Cover

    24 and 25, then secure the terminal cover in the the PR300 as shown in the diagram below. open state shown in the diagram below with the two screws provided.

  • Page 17: Chapter 2 Preparations Before Starting Measurement (Set Up The Pr300 First)

    <3> Input Range lamps Green The voltage range option set in the PR300 and the current range (rated input) option specified at the time of ordering light up. Shows a measured value of power, energy, etc. Also shows a parameter symbol and <4>...

  • Page 18: Setting The Phase And Wire System

    Press once while show on the the setpoint is blinking. lower display. The setpoint is confirmed and the PR300 returns to the Phase and Wire System Specification Change Phase and Wire System screen. The phase and wire system Confirmation screen screen thus set is shown as the current value.

  • Page 19: Range Of Phase And Wire System Options

    Setting the Phase and Wire System Startup screen The PR300 shows the Startup screen for about 5 seconds, then the Measured Value screen appears. Measured Value screen Setting completed. NOTE If you change the phase and wire system, all parameters other than those related to RS-485 and Ethernet communications are initialized (to factory-set values).

  • Page 20: Setting The Voltage Range

    Voltage Range Setting screen Confirmation screen To re-set the parameter: Press any key other than while all digits of the setpoint are blinking. The PR300 returns to the initial setting screen. Press once while Press once. the setpoint is blinking.

  • Page 21: Range Of Voltage Range Options

    Setting the Voltage Range Voltage Range screen Startup screen The setpoint is confirmed and the PR300 The PR300 shows the Startup returns to the Voltage Range screen. screen for about 5 seconds, The voltage range thus set is shown as then the Measured Value the current value.

  • Page 22: Chapter 3 Parameter Setting Operations

    Methods of Changing Parameter Setpoints Four setting types - integral numeric value, fixed-point numeric value, floating-point numeric value, and selection - have been defined for the parameters of the PR300. For each setting type, the following explains basic operations used to set parameters.

  • Page 23: Setting The Vt And Ct Ratios

    Press once. the setpoint is blinking. The setpoint is confirmed and the PR300 returns to the VT Ratio screen. VT Ratio Setting screen VT Ratio screen The screen changes to the one VT ratio setting completed. for setting the parameter and the alterable digit blinks.

  • Page 24: Setting The Ct Ratio

    The setpoint is confirmed and the CT Ratio Setting screen The screen changes to the one CT Ratio screen PR300 returns to the CT Ratio screen. for setting the parameter CT ratio setting completed. and the decimal point blinks. To move the decimal point, use the...

  • Page 25: Setting The Integrated Low-Cut Power

    Measured Value screen Setting screen To re-set the parameter: Press any key other than while all digits of the setpoint are blinking. The PR300 returns to the initial setting screen. Hold down for at Press once while least 3 seconds.
  • Page 26 Setting the Integrated Low-cut Power Parameter Setting Types and Ranges Initial Value Setting (Factory-set Parameter Symbol Parameter Name Setting Range (Details) Type Value) Fixed-point numeric Integrated low-cut power 0.05 0.05 to 20.00 (%) value Integrated low-cut power This parameter is used to prevent active power (regenerative power), reactive power (LEAD/LAG) and apparent power from being calculated as energy if they are smaller than the integrated low-cut power.

  • Page 27: Setting Rs-485 Communication Conditions

    RS-485 Communication Protocol Setting screen Menu screen To re-set the parameter: Press any key other than while all digits of the setpoint are blinking. The PR300 returns to the initial setting screen. Press once while Press once. the setpoint is blinking.
  • Page 28 Setting RS-485 Communication Conditions NOTE G The Modbus/TCP protocol can only be selected for a PR300 with the Ethernet communication function. G If the protocol is set to Modbus/TCP, the station number, baud rate, stop bit, and data length setpoints are fixed as shown below.

  • Page 29: Setting Ethernet Communication Conditions

    For the PR300 with Ethernet communication function only 3.5 Setting Ethernet Communication Conditions This section explains how to set Ethernet communication conditions by taking as an example the case when the IP address is changed from the initial value to “192.168.1.2”. (Ethernet communication conditions can be set only when the protocol is set to Modbus/TCP.
  • Page 30 Set the settings of parameter If you do not operate any key for more ON and press than 5 minutes on the Parameter screen, the PR300 automatically twice. returns to the Measured Value screen. The parameter settings have been updated.

  • Page 31: Setting Pulse Output Conditions

    For the PR300 with pulse output function only 3.6 Setting Pulse Output Conditions This section explains how to set pulse output conditions by taking as an example the case when the ON pulse width is changed from the initial value to 100 ms.
  • Page 32 Setting Pulse Output Conditions NOTE If the pulse unit and ON pulse width do not satisfy the following conditional expression, the updated pulse unit setpoint or ON pulse width setpoint reverts to the value before change. Pulse unit [kWh] 3600 1000 ON pulse width [ms] Primary rated power...

  • Page 33: Setting Analog Output Conditions

    For the PR300 with analog output function only 3.7 Setting Analog Output Conditions This section explains how to set analog output conditions by taking as an example the case when the measurement item for analog output is changed to the current-1 and lower limit of scaling to 0% from their respective initial values.

  • Page 34: Relationship Between Scale Values And Measurement Inputs (Example)

    PR300 automatically the setpoint is blinking. returns to the Measured Value screen. The setpoint is confirmed and the PR300 To change the upper limit of scaling, set a new limit using returns to the Lower Limit of Scalling screen.

  • Page 35: Setting Demand Measurement Conditions

    For the PR300 with demand measurement function only 3.8 Setting Demand Measurement Conditions This section explains how to set demand measurement conditions by taking as an example the case when the demand alarm point is changed to 300 kW and demand alarm release function to manual release, from their respective initial values.
  • Page 36 Press once while Press once. the setpoint is blinking. The setpoint is confirmed and the PR300 returns Demand Alarm Release Demand Alarm Release to the Demand Alarm Release Function screen. Function Setting screen Function screen Demand alarm release function The screen changes to the one setting completed.

  • Page 37: Setting The Measured Value Display Pattern

    Hold down for at Press once while least 3 seconds. the setpoint is blinking. The setpoint is confirmed and the PR300 Number of Display Patterns returns to the Number of Display VT Ratio screen Patterns screen. screen The parameter...
  • Page 38 Setting the Measured Value Display Pattern Display Pattern-1 Upper Display Pattern-1 Lower Display screen Display screen The setpoint is confirmed and the PR300 returns to the Display Pattern-1 Upper Display screen. Display pattern-1 upper display setting completed. Press once. Display Pattern-1 Middle...
  • Page 39 LEAD reactive energy, LAG reactive energy, and Apparent energy. G The demand value and maximum demand value can only be selected for a PR300 with the demand measuring function. For a PR300 without the demand measuring function, the initial values of demand value and maximum demand value are shown as “...

  • Page 40: Setting The "Indicator-Out" Mode And Locking Parameters

    Press once while Press once. the setpoint is blinking. The setpoint is confirmed and the PR300 returns Indicator-out Mode to the Indicator-out Mode Wait Time screen. Indicator-out Mode Setting screen Wait Time screen Indicator-out mode wait time The screen changes to the one setting completed.

  • Page 41: Locking And Unlocking Parameters

    PR300 switches to the Measured Value screen in about 5 minutes when no key operation is performed while the Parameter screen is on display. Then, the PR300 display turns off after the elapse of the indicator-out mode wait time from when the PR300 switched to the Measured Value screen.

  • Page 42: Measurement Items

    Chapter 4 Operation for Display of Measurement Items and Measurement Method 4.1 Measurement Items ✔ : Measurable, – : Not measurable Three-phase Measurement items Single-phase Single-phase Three-phase Three-phase Unit and four-wire system two-wire system three-wire system three-wire system four-wire system symbol (2.5 element) Active energy (+)

  • Page 43: Switching Display Pattern

    4.2 Switching Display Pattern According to Display patterns-1 to 8, the PR300 can change the measurement items to be assigned to the upper, middle, and lower displays (refer to Section 3.9, “Setting the Measured Value Display Pattern”). The procedure to change the display pattern and initial values are explained below.

  • Page 44: Displaying Measured, Instantaneous, And Maximum/Minimum Values

    4.3 Displaying Measured, Instantaneous, and Maximum/Minimum Values Example Display and Measuring Ranges of Active Power (Regenerative Power) “-” will always appear when the displayed value is a regenerative power value. Supplementary Secondary rated power 1.2 VT ratio CT ratio Measuring range unit 6 W to less than 100 W 0.00 to 99.99 W...

  • Page 45: Example Display And Measuring Ranges Of Voltage

    Displaying Measured, Instantaneous, and Maximum/Minimum Values Example Display and Measuring Ranges of Voltage Supplementary Voltage range VT ratio Measuring range unit (refer to the 100 V to less than 1 kV 0.0 to 999.9 V table on the right) 1 kV to less than 10 kV 0 to 9999 V Voltage-1 10 kV to less than 100 kV...

  • Page 46: Example Display And Measuring Ranges Of Frequency

    Minimum Instantaneous Maximum Maximum Minimum value value value value value value NOTE Turn the PR300 off/on by the power supply or perform remote resetting via communication in order to reset the instantaneous, maximum, and minimum values of measurements. IM 77C01E01-01E...

  • Page 47: Phase Switching For Voltage And Current

    4.4 Phase Switching for Voltage and Current Using an operation key ( ) of the PR300, the user can switch the phase of voltage, current, and demand current (*1) for display. • For this phase switching, “Voltage (phase switch indication),” “Current (phase switch indication),” and “Demand current (*1)”...

  • Page 48: Displaying Energy Values

    4.5 Displaying Energy Values This section explains the measuring range and display method of active energy, regenerative energy, LEAD reactive energy, LAG reactive energy, and apparent energy. Example Display and Measuring Ranges of Active Energy and Regenerative Energy “-” will always appear when the displayed value is a regenerative energy value.

  • Page 49: Operation For Energy Value Display

    Displaying Energy Values Operation for Energy Value Display For all measurement ranges of active energy, regenerative energy, LEAD reactive energy, LAG reactive energy, and apparent energy, decimal places that are not appearing can be displayed by key operation. G The digits being displayed are in in the table below.

  • Page 50: Optional Integrating Function

    The same applies to control by digital input. * System reset can be performed by turning off/on the power supply for the PR300 or by executing remote reset via communication.

  • Page 51: Resetting Measured Values

    To stop resetting To change the reset items Press any key other than while the reset items are blinking. The PR300 returns to the Reset Item Selection screen. Simultaneously hold down for at Press once.

  • Page 52: Canceling Reset Item Selection (Returning To The Measured Value Screen Without Resetting)

    The values of active energy, regenerative energy, LEAD reactive energy, LAG reactive energy, and apparent energy are reset to Energy value reset “0.” Resetting is not performed. The PR300 returns to the Measured Cancellation Value screen from the Reset Item Selection screen. IM 77C01E01-01E...

  • Page 53: Demand Measurement (Optional Measuring Function)

    4.7 Demand Measurement (Optional Measuring Function) The PR300 (with the demand measuring function) can measure the average power or current during the set demand period. This section explains the example display of measured value, measuring range, measurement operation, and example measurement. For setting conditions related to the demand measurement such as demand period, refer to Section 3.8, “Setting Demand Measurement Conditions.”...

  • Page 54: Operation For Demand Measurement

    The same applies to control via communica- tion. * System reset can be performed by turning off/on the power supply for the PR300 or by executing remote reset via communication. G When the system is reset, the measured values of demand, maximum demand, and demand alarm status are reset to 0.

  • Page 55: Demand Alarm

    Demand Measurement (Optional Measuring Function) Demand Alarm Demand alarm output Function: When the set demand alarm point is exceeded, an alarm is output. Output signal: Open collector Output capacity: 30 V DC, 200 mA Demand alarm release function Automatic release: When the demand value falls below the demand alarm point, the alarm is canceled. Manual release: The state of the alarm is maintained even if the demand value falls below the demand alarm point.

  • Page 56: Chapter 5 Troubleshooting

    Chapter 5 Troubleshooting 5.1 Error Display and Recommended Response Failure at the Time of Turning on the Power and during Operation Error display Status Recommended Pulse output Phase and Communi Upper display Type of fault Power Pulse Power Communi- Analog Demand response (contact...

  • Page 57: Maintenance

    • The parameter settings set to the failed product cannot be restored for a replacement. (Record the parameter settings of the PR300 on MEMO column in Appendix 4, “Parameter List” of this manual.) •...

  • Page 58: Appendix

    The average power or the average current in the set demand period is measured (refer to “3.8 Setting Demand Measurement Conditions“ and “4.7 Demand Measurement”). * Primary rated power= secondary rated power VT ratio CT ratio (Secondary rated power is the rated power of PR300.) IM 77C01E01-01E...

  • Page 59: Power Items And Equations

    = 1, 3 3/2(VA1+VA3) i=1, 3 For distorted wave input, there may be differences between the PR300 and a measuring instrument that uses a different measurement principle. Input Specifications Phase and wire system Universal three-phase three-wire system (switch the setting from single-phase two-wire system,...

  • Page 60: Digital Input Specifications

    PR300. (Note 2) In the PR300 with the demand measuring function, digital input can be used only to cancel the demand alarm and cannot be used for control signals for optional integration.

  • Page 61: Demand Alarm Output Specifications (Optional Measuring Function

    Used to keep the alarm turned on or to cancel it by digital input or the operation key, or via communication. * The demand alarm mask time can be set for the PR300. The demand alarm mask time is the time between the beginning of the demand period and the set time, during which an alarm is not recognized.
  • Page 62 Maximum connection configuration Cascade 4 segments maximum (10BASE-T) 2 segments maximum (100BASE-TX) (number of HUBs that can be cascade connected) IP address The IP address can be set using the operation keys on the front side of the PR300. IM 77C01E01-01E...

  • Page 63: Standard Performance

    If Ethernet communication is used, the RS-485 communication interface is used specifically for the Ethernet-serial gateway function. Therefore, it is not possible for a higher-level device such as a PC to access the PR300 via the RS-485 communication interface. Standard Performance...

  • Page 64: Safety And Emc Standards

    Appendix 1 Specifications of PR300 Insulation resistance Between each of the voltage input, current input, power, ground, digital input, pulse output, analog output, RS-485 communication output, Ethernet communication output, and alarm output terminals: 100 M minimum (at 500 V DC)

  • Page 65: Environmental Conditions

    Appendix 1 Specifications of PR300 Environmental Conditions Normal operating conditions Warm-up time At least 30 minutes Ambient temperature 0 to 50°C (reference temperature: 23 2°C) Temperature change 10°C/h or less Ambient humidity 20 to 90% RH (no condensation) Magnetic field...

  • Page 66: Appendix 2 System Reset

    The values of active energy (regenerative energy), reactive energy, and apparent energy, as well as the settings set to parameters are not reset and are saved. Actions after reset The PR300 displays the Startup screen (where the station number can be seen) for about 5 seconds and then the Measured Value screen. Startup screen...

  • Page 67: Appendix 3 Parameter Map

    Appendix 3 Parameter Map Some of the following parameters cannot be displayed due to the specifications of the PR300. Power ON Startup screen Measured Value screen Display pattern-n Display pattern-1 Display pattern-2 (a maximum of 8 patterns) Hold down for at least 3 seconds.
  • Page 68 *1 Displayed for a PR300 with Ethernet communication and when the protocol is set to Modbus/TCP. *2 Displayed for a PR300 with pulse output. *3 Displayed for a PR300 with analog output. *4 Displayed for a PR300 with demand measuring function.

  • Page 69: Appendix 4 Parameter List

    Selection 7 bits *1 Only the PR300 with the Ethernet communication function can be selected. *2 Select "8" if you selected Modbus/RTU for the protocol. *3 Select NONE for Parity, 1 bit for Stop bit, and 8 bits for Data length if you have selected PR201 original for the protocol option.
  • Page 70 502, 1024 to 65535 numeric value 5-14 Selection Ethernet setting switch Pulse output menu Menu to shift to the parameters of (Displayed only for a PR300 with pulse output pulse output.) Active energy Active energy Measurement item for pulse Selection Regenerative energy...
  • Page 71 Appendix 4 Parameter List Initial Value Display Parameter Setting (Factory- Parameter Name Setting Range (Details) MEMO Order Symbol Type set Value) Integral 1 to 60 (min) Demand period numeric (Demand alarm mask time to 60) (min) value Integral 1 to 59 (min) Demand alarm mask time numeric (1 to demand period) (min)
  • Page 72 Appendix 4 Parameter List Initial Value Display Parameter Setting (Factory- Parameter Name Setting Range (Details) MEMO Order Symbol Type set Value) Current 9-19 Display pattern-6 upper display Refer to the previous page. Selection (phase switch indication) Voltage 9-20 Display pattern-6 middle display (phase switch indication) 9-21...

  • Page 73: Appendix 5 Alphanumeric Characters Table For ............................................................................ 7-Segment Led

    Appendix 5 Alphanumeric Characters Table for 7-segment LED The PR300 uses a 7-segment LED as its display. It displays alphanumeric characters according to the table below (however, the table also contains characters that are not used by the PR300). NOTE The PR300 displays H and U in two different forms (uppercase and lowercase) for easy viewing.

  • Page 74: Index

    Index Index Analog output conditions setting ........3-12 Optional integrating function ..........4-9 Component names and functions ........2-1 Panel cutout dimensions ANSI ................1-1 CT ratio setting ..............3-3 DIN ................. 1-3 Parameter list ..............A-12 Parameter lock and Unlock ..........3-20 Demand ................
  • Page 75 Wiring diagram Single-phase two-wire system ........1-6 Single-phase three-wire system ........1-6 Three-phase three-wire system ........1-6 Three-phase four-wire system ........1-7 Three-phase four-wire system (2.5 element) ....1-7 Analog output ..............1-8 Demand alarm output ............. 1-8 Demand alarm release ........... 1-8 Ethernet communication ..........

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