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EngyVolt RV12

Wiring

4.2.3

Connection in 3-phase, 4-wire power network

AUX

PULSE MODBUS

CT INPUTS

VOLTAGE INPUTS

G -I3+ -I2+ -I1+

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. Only one protective ground connection  must be

provided for this reason.

4.3

Connecting the outputs

4.3.1

RS485 interface for communication via Modbus RTU or

Metasys N2

The RS485 Modbus RTU interface is connected to the terminals labeled A, B, G which are

provided for this purpose (→  3,  11).
A shielded, two-wire cable is recommended for the connection between the RS485 master

and the measuring device. A cable that is specially designed for connecting RS485

interfaces should be used where possible. However, satisfactory results can be achieved

with most shielded cables for connection distances of just a few meters. Cat IV network

cables also deliver satisfactory results. Given that the measuring device communicates with

an external device via an RS485 connection, distances of up to 1200 m can be covered

under good conditions. Electrical interference or other negative conditions can reduce the

distance over which reliable operation is possible.

Содержание EngyVolt RV12

Страница 1: ...Products Solutions Services Operating Instructions EngyVolt RV12 Multifunction electrical energy meter BA01039K 09 EN 03 13 71211948...

Страница 2: ......

Страница 3: ...eck 9 4 Wiring 10 4 1 Supply voltage 10 4 2 Electrical connection 10 4 3 Connecting the outputs 13 4 4 Post connection check 14 5 Operation 15 5 1 Display 15 5 2 Operating elements 15 5 3 Display mode...

Страница 4: ...requirements of the task by the facility s owner operator Following the instructions in these Operating Instructions 1 3 Operational safety Risk of injury Operate the device in proper technical condi...

Страница 5: ...rmation on modifications or updates to the Operating Instructions 1 6 Return The device must be packed in protective packaging if it is being returned for repair for example The original packaging off...

Страница 6: ...sult in damage to property 1 7 2 Document symbols Permitted Indicates procedures processes or actions that are permitted Preferred Indicates procedures processes or actions that are preferred Forbidde...

Страница 7: ...er for top hat rail mounting Brief Operating Instructions Comprehensive Operating instructions are available for download at www endress com download 2 3 Certificates and approvals 2 3 1 CE mark decla...

Страница 8: ...ng provides optimum protection 3 2 Installation conditions The device can be mounted on a standard top hat rail Measuring devices must be mounted in a dry location at stable ambient temperatures that...

Страница 9: ...rom 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 s...

Страница 10: ...Electrical overloading can damage the device Provide overcurrent protection elements for the power cables Provide a suitable switch or power circuit breaker for emergency shutdown in building installa...

Страница 11: ...oltage 4 Load 4 2 2 Connection in 3 phase 3 wire power network WARNING The neutral wire connection terminal N is indirectly connected with the voltage input terminals terminals L1 L2 L3 If connected t...

Страница 12: ...L3 L1 L2 L3 A0016403 4 Connection in 3 phase 3 wire power network 1 Fast acting fuse 1 A 2 Slow blow fuse 1 A 3 Supply voltage 4 Load The S2 secondary terminals of the current transformers are connec...

Страница 13: ...tasys N2 The RS485 Modbus RTU interface is connected to the terminals labeled A B G which are provided for this purpose 3 11 A shielded two wire cable is recommended for the connection between the RS4...

Страница 14: ...st be as short as possible meet the specific requirements and be filtered where necessary 4 4 Post connection check Device condition and specifications Notes Are cables or the device damaged Visual in...

Страница 15: ...nd power factor This is the Down function in the setup mode A0016378 Is used to display energy Press repeatedly to select imported exported Wh and varh Flashing of the current figure indicates that da...

Страница 16: ...lue time integrated maximum indicator function 2 kW MAX active power maximum value time integrated maximum indicator function 3 PF power factor with symbol coil inductive capacitor capacitance 3 PF po...

Страница 17: ...ation mode by repeatedly pressing the key In both cases the device switches back to the last measured values displayed The possible settings are described in the Commissioning section 18 5 4 1 Enterin...

Страница 18: ...Menu structure First level Second level Third level CHNG PASS Change password NPWd new password Change the value of the password Range for selection 0 to 9999 Main menu Password entry SYS system conf...

Страница 19: ...from OFF ON TEST Choose from disp ON tests the segments of the LC display disp TOGL display toggle Tests the segments of the LC display alternately PHAS SEQ checks the phase sequence SOFT software Dis...

Страница 20: ...arameters can now be selected for configuration in the first level If no more settings need to be made press the key again to switch to the display mode 6 3 Device settings Calling up the Setup menu 1...

Страница 21: ...the current and power details The values are displayed with minutes as the unit Factory setting 60 1 Call up the Setup menu 2 Press the or keys until dIT is displayed 3 Press the key 4 Use the and ke...

Страница 22: ...rm your selection SET is displayed Setting the parity PARI This function sets the parity of the RS485 interface Factory setting NONE 1 Use the and keys to choose from the following values None Odd Eve...

Страница 23: ...o the next parameter RATE Pulse rate RATE This function defines the pulse rate of the pulse output Factory setting 1 1 Press the key 2 Use the and keys to choose from the following values 0 1 1 pulse...

Страница 24: ...isplay in the display mode 8 Press the key to confirm your selection SET is displayed The device returns to the first menu level 6 3 9 Self test TEST This screen contains several functions for perform...

Страница 25: ...the tinted viewing window If necessary the rear can also be wiped with a dry cloth Only isopropyl alcohol can be used as a cleaning agent and should be used sparingly Never use water If the rear of t...

Страница 26: ...rn 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...

Страница 27: ...EngyVolt RV12 Accessories 27 9 Accessories No accessories are available for this device...

Страница 28: ...inal voltage 100 to 289 V AC L N 173 to 500 V AC L L Voltage measuring range 25 to 600 V Maximum short duration overvoltage 2 x nominal voltage for 1 second application repeated 5 times in 5 minute in...

Страница 29: ...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 wire...

Страница 30: ...the full scale value Measurement and calculation interval Max 300 ms maximum with THD measurement Influence of ambient temperature Current and voltage 0 013 C 0 0072 F of nominal value Power 0 018 C...

Страница 31: ...sistance 10 to 50 Hz IEC 60068 2 6 2 g Electromagnetic compatibility EMC emissions BS EN 61326 Class A Interference immunity BS EN 61326 Class A Dielectric strength 3 25 kV for 1 minute between commun...

Страница 32: ...n mode of the multifunction electrical energy meter Display mode The measured values are shown on the backlit liquid crystal display The user can call up and run through 15 different views using the o...

Страница 33: ...ards 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 Other standards and guidelines IEC 60...

Страница 34: ...phase reactive power Individual phases whose apparent power is less than 2 of nominal are not included in power factor determinations The system power factor value sign is set to negative for an indu...

Страница 35: ...rrent sequence test the phase of I1 relative to L1 must be within the window 0 48 degrees I2 relative to L1 must be within the window 240 48 degrees and I3 relative to L1 must be within the window 120...

Страница 36: ...A total maximum length of 1200 m 3900 ft is allowed for the RS485 network A maximum of 32 electrical nodes can be connected including the controller The address of each EngyVolt device can be set to...

Страница 37: ...on Modbus Startadresse Hex 3 3 1 Unit Hi Byte Lo Byte 4 W 3 W 2 W 30001 1 Phase 1 line to neutral volts Volt 00 00 30003 2 Phase 2 line to neutral volts Volt 00 02 30005 3 Phase 3 line to neutral volt...

Страница 38: ...ent demand t Ampere 00 6A 30201 101 Line 1 to Line 2 volts Volt 00 C8 30203 102 Line 2 to Line 3 volts Volt 00 CA 30205 103 Line 3 to Line 1 volts Volt 00 CC 30207 104 Average line to line volts Volt...

Страница 39: ...e to only one parameter per message Address Register Parameter number Parameter Holding register Modbus start address Hex Valid range Mode High Byte Low Byte 40001 1 Demand time t 00 00 Read minutes i...

Страница 40: ...ix for energy output values 0 no prefix e g Wh 1 k prefix e g kWh 2 M e g MWh r w 40033 17 Low power limit override 00 20 0 limit on 1 symbol off 1 limit off 1 symbol on Default 0 r w 40037 19 System...

Страница 41: ...balanced line half duplex transmission system allowing transmission distances of up to 1200 m 3900 ft The following table summarises the RS 485 Standard PARAMETER Value Mode of Operation Differential...

Страница 42: ...impedance of 120 is recommended The cable should be terminated at each end with a 120 min 0 25 W resistor and a capacitor with 1 nF in series with the resistor 2 B A Gnd B AGnd 2 B A Gnd 2 B A Gnd 1 1...

Страница 43: ...l mode RTU or ASCII and serial parameters baud rate number of data bits number of stop bits and parity are the same for all devices on the network Check that the master is requesting floating point va...

Страница 44: ...sters First Byte Last Byte Slave address Function code Start address Hi Start address Lo Number of points Hi Number of points Lo Error check Lo Error check Hi Slave address 8 bit value representing th...

Страница 45: ...ating the number of data bytes contained within this response First register Hi 2 The top most significant eight bits of a 16 bit number representing the first register requested in the query First re...

Страница 46: ...ting the error check value Error check Hi The top most significant eight bits of a 16 bit number representing the error check value 11 4 2 Serial transmission modes There are two Modbus Protocol seria...

Страница 47: ...tinuous stream If a silent interval of more than 2 5 character times occurs before completion of the message the receiving device flushes the incomplete message and assumes that the next byte will be...

Страница 48: ...Parity checking is specified no parity bit is transmitted and no parity check can be made Also if No Parity checking is specified and one stop bit is selected the transmit character is effectively sho...

Страница 49: ...unchanged 16 Pre set Multiple Registers Set the contents of read write location 4X references 11 4 7 IEEE floating point format The Modbus Protocol defines 16 bit Registers for the data variables A 1...

Страница 50: ...ample we will use the value for 240 5240 5 shown above The floating point storage representation is not an intuitive format To convert this value to decimal the bits should be separated as specified i...

Страница 51: ...ol All values stored and returned are in floating point format to IEEE 754 with the most significant register first Read input registers MODBUS Protocol code 04 reads the contents of the 3X registers...

Страница 52: ...mbers to request a floating point variable If the Starting Address or the Number of points is odd then the query will fall in the middle of a floating point variable the product will return an error m...

Страница 53: ...Exception Response later Field name Example Hex Slave address 01 Function 10 Starting address High 00 Starting address Low 00 Number of registers High 00 Number of registers Low 02 Error check Low 41...

Страница 54: ...agnostic sub functions Only the Return Query Data sub function sub function 0 is supported on EngyVolt devices Example The following query will send a diagnostic return query data query with the data...

Страница 55: ...rts integration issues on the above Support for Metasys integration Please contact the nearest Jonson Controls Energy Efficency or Johnson Controls System Services representative The address can be fo...

Страница 56: ...e 3 power factor 18 PA1 Phase 1 phase angle Degrees 19 PA2 Phase 2 phase angle Degrees 20 PA3 Phase 3 phase angle Degrees 21 AN Neutral current A 22 V12 Line voltage P1 P2 V 23 V23 Line voltage P2 P3...

Страница 57: ...Phase 1 current demand A 52 A1_MAX_DMD Maximum phase 1 current demand A 53 A2_DMD Phase 2 current demand A 54 A2_MAX_DMD Maximum phase 2 current demand A 55 A3_DMD Phase 3 current demand A 56 A3_MAX_...

Страница 58: ...te 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 J...

Страница 59: ...13 Single phase 2 wire 11 Energy resolution 34 Entering numbers 17 L Lmt 23 M Maximum demand 34 Maximum indicator function 21 Measuring device Return 26 Metasys Design considerations 55 Metasys N2 Ap...

Страница 60: ...Index EngyVolt RV12 60 S Single phase 2 wire 11 SOFT 24 Staff Requirements 4 STOP 22 SYS 21 T TEST 24 Testing the phase sequence 35 THD 35 Total harmonic distortion THD 35 W Workplace safety 4...

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Страница 64: ...www addresses endress com...

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