Endress+Hauser EngyVolt RV12 Operating Instructions Manual
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Endress+Hauser EngyVolt RV12 Operating Instructions Manual

Endress+Hauser EngyVolt RV12 Operating Instructions Manual

Multifunction electrical energy meter
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BA01039K/09/EN/03.13
71211948
Products
Operating Instructions
EngyVolt RV12
Multifunction electrical energy meter
Solutions
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Summary of Contents for Endress+Hauser EngyVolt RV12

  • Page 1 Products Solutions Services BA01039K/09/EN/03.13 71211948 Operating Instructions EngyVolt RV12 Multifunction electrical energy meter...

  • Page 3: Table Of Contents

    EngyVolt RV12 Table of contents Table of contents Safety instructions ....4 Appendix ......34 Workplace safety .

  • Page 4: Safety Instructions

    If a plastic transmitter housing is permanently exposed to certain steam and air mixtures, this can damage the housing. ‣ If you are unsure, please contact your Endress+Hauser Sales Center for clarification. ‣ If used in an approval-related area, observe the information on the nameplate.

  • Page 5: Technical Improvement

    EngyVolt RV12 Safety instructions 500 V L-L (289 V L/N), power connection via low-voltage current transformer x/5A at a nominal frequency of 45 to 66 Hz. It is suitable for use in single-phase power systems, and in three-phase power systems with three or four wires.
  • Page 6 Safety instructions EngyVolt RV12 NOTICE Causes (/consequences) Consequences of non-compliance (if applicable) ‣ Corrective action ‣ This symbol alerts you to situations which may result in damage to property. 1.7.2 Document symbols Permitted Indicates procedures, processes or actions that are permitted.

  • Page 7: Identification

    AUX: 120-350V DC, 110-400V AC, 5 VA Caution: refer to installation instruction A0016768  1 EngyVolt RV12 nameplate (example) Device designation Order code, serial number and extended order code of the device Input variables and power supply Year of manufacture and manufacturer address...

  • Page 8: Installation

    Installation EngyVolt RV12 Installation Incoming acceptance, transport, storage Compliance with the permitted storage and transportation conditions is mandatory. Precise specifications are provided in the "Technical data" section (→  28). 3.1.1 Incoming acceptance On receipt of the goods, check the following points: •...

  • Page 9: Installation Instructions

    EngyVolt RV12 Installation Installation instructions A0016514 1. Fit the device on the top-hat rail from above. 2. Push the bottom of the device back until it locks into place. To remove the device from the top-hat rail, lever down the black tab at the bottom of the device (use a suitable tool such as a screwdriver).

  • Page 10: Wiring

    Wiring EngyVolt RV12 Wiring WARNING Danger! Electric voltage! ‣ The entire electrical connection must be performed when the device is de-energized. ‣ Establish the protective ground connection before making any other connections. NOTICE Cable heat load ‣ Use suitable cables for temperatures that are 5 °C (9 °F) above the ambient temperature.
  • Page 11 EngyVolt RV12 Wiring 4.2.1 Connection in single-phase, 2-wire power network PULSE MODBUS CT INPUTS -I3+ -I2+ -I1+ VOLTAGE INPUTS A0016399  3 Connection in single-phase, 2-wire power network Fast-acting fuse 1 A Slow-blow fuse 1 A Supply voltage Load 4.2.2...
  • Page 12 Wiring EngyVolt RV12 PULSE MODBUS CT INPUTS -I3+ -I2+ -I1+ VOLTAGE INPUTS A0016403  4 Connection in 3-phase, 3-wire power network Fast-acting fuse 1 A Slow-blow fuse 1 A Supply voltage Load The "S2" secondary terminals of the current transformers are connected in the multifunction electrical energy meter.

  • Page 13: Connecting The Outputs

    EngyVolt RV12 Wiring 4.2.3 Connection in 3-phase, 4-wire power network PULSE MODBUS CT INPUTS -I3+ -I2+ -I1+ VOLTAGE INPUTS A0016405  5 Connection in 3-phase, 4-wire power network Fast-acting fuse 1 A Slow-blow fuse 1 A Supply voltage Load The "S2" secondary terminals of the current transformers are connected in the multifunction electrical energy meter.

  • Page 14: Post-Connection Check

    Wiring EngyVolt RV12 4.3.2 Pulse output The pulse output is connected to the terminals marked "pulse" which are provided for this purpose. A semi-conductor relay is provided. The nominal power is 250 V, 50 mA. Connecting cables must be as short as possible, meet the specific requirements and be filtered where necessary.

  • Page 15: Operation

    EngyVolt RV12 Operation Operation Display The display screen is used in 2 operating modes: • Display mode (→  15) to display measured values • Configuration mode (→  15) of the multifunction electrical energy meter. The possible settings are described in the "Commissioning" section (→  18).

  • Page 16: Configuration Mode

    Operation EngyVolt RV12 View No. Description View No. Description View No. Single-phase, 2-wire 3-phase, 4-wire 3-phase, 3-wire A L1 (current L1) A L1 (current L1) A L1 (current L1) A L2 (current L2) A L2 (current L2) A L3 (current L3)

  • Page 17: Power-Up Screen

    EngyVolt RV12 Operation a password was not configured for the device beforehand, the setup is called up by pressing the key four times. The parameter to be configured is selected with the keys. When the key is pressed, the parameter is selected and the user enters the second level of the menu structure.

  • Page 18: Commissioning

    Commissioning EngyVolt RV12 Commissioning Post-installation check and switching on the device Perform all the final checks before commissioning the device. • Checklist for "post-installation check" (→  9) • Checklist for "post-connection check" (→  14) When the operating voltage is applied, a number of screens are first displayed by way of a self-test (→...
  • Page 19 EngyVolt RV12 Commissioning First level Second level Third level STOP (stop bits) Choose from: • 1 • 2 Addr (device address) Choose value from between 1 to 247 RLY (relay) OP1 (value assignment to pulse Choose from: output relay 1) •...

  • Page 20: Device Settings

    Commissioning EngyVolt RV12  A0016390 The screen to make the settings for the system configuration is displayed. 3. Repeatedly press the key until the screen to set the current transformer primary value "CT" is displayed.  A0016391 4. Press the key.
  • Page 21 EngyVolt RV12 Commissioning 6.3.2 System configuration - SYS 1. Call up the Setup menu. 2. Press the key. 3. Use the keys to choose from the following configuration options: 1P2W (single-phase, 2-wire = alternating current system), 3P3W (3-phase, 3-wire = three-...
  • Page 22 Commissioning EngyVolt RV12 4. Press the keys until the desired parameter is displayed. 5. Use the key to start configuring the parameter. 6. Proceed as described in the following sections. Protocol - PROT The multifunction electrical energy meter is designed for communication via the RS485 interface via Modbus RTU or alternatively via Metasys N2.
  • Page 23 EngyVolt RV12 Commissioning "SET" is displayed. Setting the floating point - Ordr This function displays the direction of the floating point. Changes to the setting cannot be made from the energy meter. This setting can only be changed if an RS485 interface is available and the device is integrated into a Modbus RTU network.
  • Page 24 Commissioning EngyVolt RV12 4. Use the keys to choose from the following values: KILO (for kWh / kvarh), X 1 (for Wh / varh), MEGA (for MWh / Mvarh). 5. Press the key to confirm your selection.  "SET" is displayed. The device goes to the next parameter "Lmt".

  • Page 25: Maintenance

    EngyVolt RV12 Maintenance Maintenance WARNING The device is energized. Danger! Risk of electric shock! ‣ Before performing any cleaning work on the device, the device must be de-energized. Live transformer cables must never be opened to remove any dust or dirt that may have accumulated.

  • Page 26: Troubleshooting

    Return Observe the following points when returning the device: • Contact your Endress+Hauser Sales Center to obtain information about the procedure and basic conditions. • Enclose a description of the error if sending in a device for repair.

  • Page 27: Accessories

    EngyVolt RV12 Accessories Accessories No accessories are available for this device.

  • Page 28: Technical Data

    Calculated process variables EngyVolt RV12: active, reactive and apparent power, power factor (Cos-Phi), imported and exported active and reactive energy, total harmonic distortion (current L1, L2, L3; voltage L1/N, L2/N, L3/N or L1/L2, L2/L3, L3/L1 respectively), neutral current, max. current (L1, L2, L3, N) , max.

  • Page 29: Power Supply

    The measuring device is designed exclusively for operation on external current converters. The multifunction EngyVolt RV12 and RV15 electrical energy meters are suitable for single-phase and three-phase power systems with 3 or 4 wires. The "S2" secondary terminals of the current converters are connected in the electrical energy meter.
  • Page 30 Technical data EngyVolt RV12 Maximum measured error Extended measured error: IEC 688: 1992 Current (A) 0.5 % of nominal current Voltage (V) 0.5 % of max. nominal voltage (4 % for I2 in 3-phase 3-wire operation) Calculated neutral current (A)
  • Page 31 Dielectric strength 3.25 kV for 1 minute between communication outputs and measuring inputs, communication outputs and supply voltage. Supply voltage and measuring inputs 10.7 Mechanical construction Dimensions EngyVolt RV12 (top-hat rail) 58 (2.28) 48 (1.89) 32.2 (1.27) 71.3 (2.81) PULSE MODBUS...
  • Page 32 Technical data EngyVolt RV12 Materials Polycarbonate as per UL94V0 10.8 Operability Local operation RV12 RV15 PULSE MODBUS CT INPUTS -I3+ -I2+ -I1+ VOLTAGE INPUTS A0016505  7 Display and operating elements of the EngyVolt devices Three-line display Symbol for parameter displayed...
  • Page 33 EngyVolt RV12 Technical data 10.9 Certificates and approvals  mark Declaration of Conformity The product meets the requirements of the harmonized European standards. As such, it complies with the legal specifications of the EC directives. The manufacturer confirms successful testing of the product by affixing to it the  mark.

  • Page 34: Appendix

    Appendix EngyVolt RV12 Appendix 11.1 Basis of measurement and calculations 11.1.1 Phase to Phase voltages for 3 phase 4 wire devices Phase to Phase voltages are measured directly and calculated as RMS values. Situations where the phases are not spaced 120 degrees apart (e.g. 4 wire open delta) are indicated correctly.

  • Page 35: Modbus Implementation

    EngyVolt RV12 Appendix 11.1.6 Total harmonic distortion – THD The calculation used for Total Harmonic Distortion is: THD = ((RMS of total waveform – RMS of fundamental) / RMS of total waveform) x 100. This is often referred to as THD–R, and lies in the range 0 to 100 %.
  • Page 36 Appendix EngyVolt RV12 connection to SCADA or other communications systems using the Modbus Protocol RTU slave protocol. The Modbus Protocol establishes the format for the master' s query by placing into it the device address, a function code defining the requested action, any data to be sent, and an error checking field.
  • Page 37 EngyVolt RV12 Appendix 11.2.2 Input registers Input registers are used to indicate the present values of the measured and calculated electrical quantities. Each parameter is held in two consecutive 16 bit registers. The following table details the 3X register address, and the values of the address bytes within the message.
  • Page 38 Appendix EngyVolt RV12 Address Parameter EngyVolt input register parameter description Modbus-Startadresse Hex 3 Ø 3 Ø 1 Ø (Register) number Unit Hi Byte Lo Byte 30063 Total system power factor (*1)    30067 Total system phase angle Degrees ...
  • Page 39 EngyVolt RV12 Appendix The power factor has its sign adjusted to indicate the nature of the load. Positive for capacitive and negative for inductive. There is a user option to select either k or M for the energy prefix. The same user option as in 2 above gives a prefix of none or k for Amphours The power sum demand calculation is for import power only.
  • Page 40 Appendix EngyVolt RV12 Address Parameter Parameter Modbus start Valid range Mode (Register) number Holding register address Hex High Byte Byte 40021 Note address Write the network port node address. Default: 1 Valid range 1 to 247. Requires a restart to become effective. Note,...

  • Page 41: Rs485 General Information

    EngyVolt RV12 Appendix will detect the order used to send this value and set that order for all Modbus Protocol transactions involving floating point numbers. It is perfectly feasible to change EngyVolt devices set-up using a general purpose Modbus Protocol master, but often easier to use the device display, especially for gaining password protected access.
  • Page 42 Appendix EngyVolt RV12 period, (set by control software in the “master”), the “master” will abandon the “conversation”. 11.3.2 Connecting the instruments Screened twisted pair cable should be used. For longer cable runs or noisier environments, use of a cable specifically designed for RS485 may be necessary to achieve optimum performance.

  • Page 43: Modbus Protocol General Information

    EngyVolt RV12 Appendix A0016446  11 RS485 signal Start bit Idle State (A) = no signal level on A Idle State (B) = no signal level on 11.3.4 Troubleshooting This section contains general information. Specific notes for your individual system can be obtained from the technical support of the software used or from your system integrator.
  • Page 44 Appendix EngyVolt RV12 11.4.1 Modbus data format The Modbus Protocol defines the format for the master’s query and the slave’s response. The query contains the device (or broadcast) address, a function code defining the requested action, any data to be sent, and an error-checking field. The response contains fields confirming the action taken, any data to be returned, and an error-checking field.
  • Page 45 EngyVolt RV12 Appendix Error check (Hi): The top (most significant) eight bits of a 16-bit number representing the error check value. Response The example illustrates the normal response to a request for a single floating point parameter i.e. two 16-bit Modbus Protocol Registers.
  • Page 46 Appendix EngyVolt RV12 Exception response If an error is detected in the content of the query (excluding parity errors and error check mismatch), then an error response (called an exception response), will be sent to the master. The exception response is identified by the function code being a copy of the query function code but with the most-significant bit set.
  • Page 47 EngyVolt RV12 Appendix 11.4.3 Modbus protocol message timing A Modbus protocol message has defined beginning and ending points. The receiving device recognizes the start of the message, reads the “Slave Address” to determine if they are being addressed and knowing when the message is completed they can use the Error Check bytes and parity bits to confirm the integrity of the message.
  • Page 48 Appendix EngyVolt RV12 the timeout period from both the master and the slaves’ specifications. The slave may define the ‘response time’ as being the period from the receipt of the last bit of the query to the transmission of the first bit of the response. The master may define the ‘response time’...
  • Page 49 EngyVolt RV12 Appendix This process is repeated until all eight shifts have been performed. After the last shift, the next 8-bit message byte is exclusive OR' e d with the lower half of the 16 bit register, and the process repeated. The final contents of the register, after all the bytes of the message have been applied, is the error check value.
  • Page 50 Appendix EngyVolt RV12 mantissa is always arranged to be 1 and is thus not needed in the representation of the number. The process by which the most significant bit is arranged to be 1 is called normalisation, the mantissa is thus referred to as a “normal mantissa”. During normalisation the bits in the mantissa are shifted to the left whilst the exponent is decremented until the most significant bit of the mantissa is one.
  • Page 51 EngyVolt RV12 Appendix Binary bits that are to the right of the binary point also represent a power of 2 corresponding to their position. As the digits are to the right of the binary point the powers are negative. For example: .100… = (1 x 2...
  • Page 52 Appendix EngyVolt RV12 Field name Example (Hex) Error check Low Erorr check High 11.4.9 Holding registers Read holding registers MODBUS Protocol code 03 reads the contents of the 4X registers. Example: The following query will request the prevailing ‘Demand Time’:...
  • Page 53 EngyVolt RV12 Appendix Field name Example (Hex) Starting address High Starting address Low Number of registers High 00 Number of registers Low Byte count Data, High Reg, High Byte 00 Data, High Reg, Low Byte Data, Low Reg, High Byte...
  • Page 54 Appendix EngyVolt RV12 11.4.11 Exception codes Table of exception codes Exception code Modbus protocol name Description Illegal function The function code is not supported by the product. Illegal data address Attempt to access an invalid address or an attempt to read or write part of a floating point value.

  • Page 55: Rs485 Implementation Of Johnson Controls

    EngyVolt RV12 Appendix 11.5 RS485 Implementation of Johnson Controls Metasys These notes briefly explain Metasys and EngyVolt device integration. Use these notes with the Metasys Technical Manual, which provides information on installing and commissioning Metasys N2 Vendor devices. 11.5.1 Application details The EngyVolt multifunctional electrical energy meter is an N2 Vendor device that connects directly with the Metasys N2 Bus.
  • Page 56 Appendix EngyVolt RV12 11.5.2 EngyVolt Metasys N2 point mapping table Name Description Unit ADF point Phase 1 line to neutral volts Phase 2 line to neutral volts Phase 3 line to neutral volts Phase 1 current Phase 2 current Phase 3 current...
  • Page 57 EngyVolt RV12 Appendix Name Description Unit ADF point HI_EGY_EXP_P Exported Wh, higher value 100 MWh LO_EGY_IMP_V Imported Varh, lower value 0.1 kvarh HI_EGY_IMP_V Imported Varh, higher value 100 Mvarh LO_EGY_EXP_V Exported Varh, lower value 0.1 kvarh HI_EGY_EXP_V Exported Varh, higher value...
  • Page 58 Appendix EngyVolt RV12 In order to generate a reset, write the following values to the register "RESET". Reset Write All energy values (electrical energy values) 1011 All demand average / maximum values 1012 Demand time base 1013 ADF points are one-based in the JCI compliance test software but zero-based on the...

  • Page 59: Index

    EngyVolt RV12 Index Index 0 … 9 Return ....... . . 26 Metasys 3-phase, 3-wire .
  • Page 60 Index EngyVolt RV12 Single-phase, 2-wire ......11 SOFT ........24 Staff Requirements .
  • Page 64 www.addresses.endress.com...

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