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28 

 
CHAPTER 3 — USING THE 

ElNet

 Meter 

 

In  this  chapter  you  will  find  descriptions  and  functions  of  the 
front panel and the control buttons and how to use them. 

 

3.1  Front Panel 

 

To operate the front panel 

The Front Panel has a graphic screen and 6 operating buttons. 

All  the  readings  are  shown  on  a  state  of  the  art  160  X  128 
resolution graphic screen and are explained in detail in Chapter 5. 

The  Control  Buttons  and  their  functions  are  fully  explained  in 
Section 3.2. 

 

 

 

 

 

 

 

 

 

 

 

Figure 3.1. 

Front Panel 

Summary of Contents for GR/PQ

Page 1: ...Installation Operation Manual Elnet GR PQ Electrical Measurements Power Quality Ver 1 8...

Page 2: ...claimer 12 CHAPTER 2 INSTALLATION 13 2 1 Contents of packaging 14 2 2 Mechanical mounting 15 2 3 Wiring Schematics 17 2 4 Rear Panel Connections 21 2 5 Digital Outputs and Inputs 26 2 6 Manufacturing...

Page 3: ...NEL DISPLAYS 46 5 1 Current for 3 Phases 46 5 2 Frequency for 3 Phases 47 5 3 Current in Neutral Line 48 5 4 Voltage for 3 Phases 49 5 5 Active Power for all 3 Phases P 50 5 6 Reactive Power for all 3...

Page 4: ...larm setting 71 6 2 Display Alarms Report 73 6 3 Display EN50160 Event Report 74 CHAPTER 7 DEMAND REPORTS 75 CHAPTER 8 DATA LOGGING 76 CHAPTER 9 COMMUNICATION 79 9 1 Communication Connections 79 9 2 C...

Page 5: ...ded on a continual basis and can be recalled and shown on the front panel display of the instrument with a few simple key strokes any time the user wishes The ElNet Energy Powermeter is a compact mult...

Page 6: ...people i e the Installation Technician the Senior Electrical Engineer and the end User For this reason this manual is divided into chapters for ease of reference by each of these different people Ther...

Page 7: ...7 Demand reports is an easy to follow step by step guide to obtain the Demand reports up to 2 years CHAPTER 8 Data Logging is an easy to follow step by step guide to obtain all the stored peaks of cu...

Page 8: ...it to any power source To prevent a potential fire or shock hazard never expose the ElNet Energy Powermeter to rain or moisture Keep the surrounding area free of dirt and clutter especially metal obj...

Page 9: ...APPLICATIONS Ltd will advise the customer on the proper installation and use of the ElNet Energy Powermeter but will not accept any responsibility that the instrument is suitable for the application...

Page 10: ...eplaced products are warranted for ninety 90 days from the date of repair or replacement or for the remainder of the original product s warranty period whichever is longer CONTROL APPLICATIONS Ltd is...

Page 11: ...strument when you bought it While every effort was made to keep the information as reliable helpful accurate and up to date as possible all possible contingencies cannot be covered Technical or typogr...

Page 12: ...changes in the manual or the product at any time While it is the intention of CONTROL APPLICATIONS Ltd to supply the customer with accurate and reliable information in this User Manual CONTROL APPLICA...

Page 13: ...sent in connecting cables and terminal blocks Fully qualified personnel must do all work Failure to follow this rule may result in serious or even fatal injury to personnel and or damage to equipment...

Page 14: ...contain Elnet GR Elnet PQ 1 Your new Elnet Energy Powermeter Your new Elnet Energy Powermeter 2 Elnet GR PQ User Manual this book Elnet GR PQ User Manual this book 3 Test Certificate and Certificate...

Page 15: ...e a rectangular hole according to the dimensions shown in Figure 2 1 Figure 2 1 Panel Cutout Do not mount the ElNet Energy Powermeter too close to any main electrical conductors Allow sufficient space...

Page 16: ...p then push the two mounting clips provided in the packaging into position Use mild force to ensure the clips are securely positioned on the outer case of the ElNet Energy Powermeter Tighten the two m...

Page 17: ...17 2 3 Wiring Schematics To wire up the ElNet GR Energy Powermeter in Star connection Figure 2 3 GR Schematic Star Wiring Diagram...

Page 18: ...18 To wire up the ElNet GR Energy Powermeter in Delta connection Figure 2 4 GR Schematic Delta Wiring Diagram...

Page 19: ...19 To wire up the ElNet PQ Energy Powermeter in Star connection Figure 2 5 PQ Schematic Star Wiring Diagram...

Page 20: ...20 To wire up the ElNet PQ Energy Powermeter in Delta connection Figure 2 6 PQ Schematic Delta Wiring Diagram...

Page 21: ...he ElNet Energy Powermeter are located externally on the rear of the instrument and the lead from the leg of the external Current Transformer must pass through in the correct direction NOTE Ensure all...

Page 22: ...ons to the ElNet Energy Powermeter by means of terminal connector plugs The Rear Panel See Figure 2 7 has all connections printed and are simple to follow See table 2 1 for connections Ensure the lead...

Page 23: ...23 Figure 2 7 Rear Panel Elnet GR Figure 2 8 Rear Panel Elnet PQ...

Page 24: ...nt Transformer on Line1 Note the correct direction to insert the lead I2A From Current Transformer on Line2 Note the correct direction to insert the lead I3A From Current Transformer on Line3 Note the...

Page 25: ...S485 Comm Line RS485 RS485 Comm Line RS232 TXD RS232 Comm Transmit GR model only RS232 RXD RS232 Comm Receive RS232 COM RS232 Comm Common RJ45 10 BASE T line to Network Via standard Communications plu...

Page 26: ...controller chapter 4 6 or to close contact upon alarm chapter 5 4 3 which can be defined in the GR PQ same output cannot be used for both simultaneously The Digital Out closes contact of Relay between...

Page 27: ...een Description 1 Ep Date Production date of software operating system 2 Ep Time No of times the program has been updated 3 Version Program version no 4 Comm Address of MODBUS Protocol 5 Unit ID Conse...

Page 28: ...w to use them 3 1 Front Panel To operate the front panel The Front Panel has a graphic screen and 6 operating buttons All the readings are shown on a state of the art 160 X 128 resolution graphic scre...

Page 29: ...arranged on a keypad below the display screen and require slight finger pressure to click Figure 3 2 Control Buttons performs the function that the arrow above is pointing to e g move the curser or se...

Page 30: ...s can be locked against any unauthorized or accidental usage Only sub menus can be locked The Lock Utility does not work on the Main Menu To lock press Enter for six 6 seconds A Keyboard Locked messag...

Page 31: ...s A Keyboard Unlocked message appears on the screen and normal functions can resume Figure 3 4 Keyboard Unlocked In the event of a general power failure the ElNet GR will return to the screen that was...

Page 32: ...and settings of the Current Transformer are the most vital and fundamental actions required to ensure the accuracy of the ElNet Energy Powermeter It is essential to know the ratio of the Current Trans...

Page 33: ...Transformer setting The cross section of the leads to the current Transformer must be compatible to the power of the current transformer We recommend a power transformer with at least 3VA and the leng...

Page 34: ...the number 1 will appear in the password field Figure 4 2 Password Field 5 Move the cursor to the Sign with F1 F2 F3 F4 buttons See Section 3 2 for description of button functions 6 If the incorrect p...

Page 35: ...ical Menu screen appears Figure 4 4 Technical Menu 9 Scroll to Transformation Ratio 10 Click Enter The Current Transformer screen appears Figure 4 5 Current Transformer The present setting for the Cur...

Page 36: ...ove the cursor left or right and Button F1 or F2 to decrease or increase the value or 13 To save Click Enter 14 To cancel Click Back 4 2 Electrical Connection Check To avoid any problems arising from...

Page 37: ...onnection Check screen appears Figure 4 7 Connection Check Voltage and Current Messages Message Voltage Current OK Voltage OK present on Lines If OK is not present on 3 Lines then its not connected co...

Page 38: ...urrent Messages Phase Order Messages Table 4 2 Phase Order Messages Message Voltage OK Correct Phase Order of Voltage Connections OPP Incorrect Phase Order i e Line 2 does not follow Line 1 and or Lin...

Page 39: ...uested To set TOU See Section 4 1 for instructions to arrive at the Technical Menu From Technical Menu scroll to TOU Setting Click Enter The TOU Setting screen appears Figure 4 8 TOU Setting Then scro...

Page 40: ...change language on the display screen 1 On the main screen click F2 for 6 seconds 2 The Select language screen appears Figure 4 9 Select Language 3 Scroll to the relevant language 4 To save Click Ent...

Page 41: ...ns to arrive at the Technical Menu 1 From Technical Menu scroll to Set Clock 2 Click Enter The Set Clock screen appears Figure 4 10 Set Clock 3 Use F1 or F2 buttons to select Hour Minute Second 4 Use...

Page 42: ...tions to arrive at the Technical Menu 1 From Technical Menu scroll to Set Date 2 Click Enter The Set Date screen appears Figure 4 11 Set Date 3 Use F1 or F2 to select Day Month Year 4 Use F3 or F4 to...

Page 43: ...igital output See section 4 1 for instructions to arrive at the Technical Menu From Technical Menu 1 Scroll to Next and click ENTER 2 Scroll to Digital Out Setup and click ENTER 3 The Digital Out Setu...

Page 44: ...e section 4 1 for instructions how to arrive at the Technical Menu 1 From Technical Menu scroll to Set Connections and Click ENTER 2 The Connection screen appears Figure 4 13 Delta Star Connection 3 U...

Page 45: ...1 for instructions to arrive at the Technical Menu 1 From Technical Menu scroll to Next and Click Enter 2 Scroll to Demand Setting and Click Enter 3 The Demand Setting screen appears Figure 4 14 Dema...

Page 46: ...des e g Current Voltage Power Power Factor Energy and Power quality 5 1 Current for 3 Phases To display Current for all 3 Phases 1 From Main Menu scroll to Current Voltage 2 Click Enter The RMS Curren...

Page 47: ...re 5 2 Current graphic Display 5 2 Frequency for 3 Phases To display Frequency for all 3 Phases 1 Display the current screen as described in section 5 1 2 Click F3 TABLE 3 Click F3 Hz The Frequency sc...

Page 48: ...s calculates the Current in the Neutral Line ElNet PQ measures the Neutral Line current via additional current transformer If the reading for neutral line is 0 i e there is no current in the neutral l...

Page 49: ...ys 5 4 Voltage for 3 Phases To display Voltage for all 3 Phases and across Phases 1 From the Main Menu scroll to Current Voltage 2 Click Enter The Current Voltage screen appears 3 Click F2 VOLT The Vo...

Page 50: ...play 2 Click Enter The Active Power screen appears Figure 5 6 Active power Parameter Description Units L1 Voltage from Line1 to Neutral Volts L2 Voltage from Line2 to Neutral Volts L3 Voltage from Lin...

Page 51: ...tched on OR Since the last time the reset button was pressed Peak is the lowest value reached for the adjacent reading since the ElNet Energy Powermeter was first switched on OR Since the last time th...

Page 52: ...o Power Display 2 Click Enter the Active Power screen appears Figure 5 5 3 Click F3 the Reactive Power screen appears Figure 5 7 Reactive Power Refer to section 5 4 for description of peaks The CLEAR...

Page 53: ...o Power Display 2 Click Enter the Active Power screen appears Figure 5 5 3 Click F2 The Apparent Power screen appears Figure 5 8 Apparent Power Refer to section 5 4 for description of peaks The CLEAR...

Page 54: ...t The Power Table screen appears Figure 5 9 Power Table Parameter Description Unit P Active Power for each Line Watts Q Reactive Power for each Line VAR S Apparent Power for each Line VA P Total Activ...

Page 55: ...appears Figure 5 10 Power Factor for each line 5 9 Overall Power Factor To display Overall Power Factor 1 From Main Menu scroll to Power Display 2 Click Enter and then click F4 3 The Power Table scree...

Page 56: ...isplay 2 Click Enter the Energy Meter screen appears Figure 5 12 Energy Meter 3 Click F1 to read Energy in each Rate at Rate1 Rate 2 and Rate3 4 Click F2 to read Energy at Phase at Line1 Line2 and Lin...

Page 57: ...meter GR Model is capable of displaying Harmonics in Wave Form Graph Harmonics Bar Graph Harmonic Tables and Total Harmonic Distortion for Voltage and Current 5 11 1 Wave Form Graphs To display Wave F...

Page 58: ...4 Voltage Graph 5 Press F4 to switch between Voltage Graph Line 1 Line 2 and Line 3 To display Current Wave Form Graphs 1 Click F2 the Current Graph screens appears Figure 5 15 Current Graph 2 Press F...

Page 59: ...r the Harmonics Volt Bar Graph screens appears Figure 5 16 Harmonics Bar Graph 5 Press F3 to change Harmonics Volts Bar Graph to Line 1 Line 2 Line 3 and Lines 1 2 3 together 1st Harmonics is normally...

Page 60: ...rrent Bar Graph 1 Click F2 the Harmonic Current Bar Graph screens appears Figure 5 17 Harmonic Current Bar Graph 2 Press F3 to change Harmonics Current Bar Graph to Line 1 Line 2 Line 3 Neutral Line L...

Page 61: ...Distortion THD also shown To display Harmonics Tables 1 From Main Menu scroll to Power Quality Display 2 Click Enter the Power Quality screens appears 3 Scroll to Harmonic Table 4 Click Enter the Harm...

Page 62: ...from Section 5 13 3 2 Click F2 The Harmonic Current Table screens appears Figure 5 19 Harmonic Current Table 3 Click F4 to scroll down the Table to observe all the Current Harmonics till 60th 4 Click...

Page 63: ...Display and Click Enter 2 Scroll to THD TDD KF Current 3 Click Enter the Current THD TDD KF Table screens appears Figure 5 21 Current THD TDD KF 4 In order to enable the system to calculate properly...

Page 64: ...ry This record can be downloaded to the PC later on for detailed analyze Before starting the EN50160 events record mode the nominal voltage range must be defined 1 Access the Technical Menu see chapte...

Page 65: ...move the cursor left or right and Button F1 or F2 to decrease or increase the value or In order to start the EN50160 mode 8 To activate the EN50160 mode scroll to Start EN50160 and click Enter 9 The l...

Page 66: ...d several seconds exists the following definitions must be done 1 Activate the EN50160 mode by repeating the steps from chapter 5 11 6 2 Scroll to Long Event Length 3 Click Enter the Long Event Length...

Page 67: ...Before screen appears Figure 5 25 Long Event Sec Before 4 Use button F3 or F4 to move the cursor left or right and Button F1 or F2 to decrease or increase the value or There are 3 triggers to start th...

Page 68: ...utton F3 or F4 to move the cursor left or right and Button F1 or F2 to decrease or increase the value or Setting hysteresis value in line 1 to return to normal and reset for new event 5 Repeat on step...

Page 69: ...e cursor left or right and Button F1 or F2 to decrease or increase the value or 4 2 Activating by communication 1 Writing value of 1 to Modbus register 1299 1300 Check Chapter 9 Communication 4 3 Acti...

Page 70: ...ta The ElNet has three alarm relays each one of them can be linked to one or more pre defined alarms The following alarms can be defined Lines 1 Voltage alarms L1 L2 L3 2 Current alarms L1 L2 L3 Neutr...

Page 71: ...een you will be able to set alarms for Voltages Currents Active Power Power Factor Harmonics alarms and to set the values for 16 delay timers that can be linked to each one of the alarms For each alar...

Page 72: ...write the alarm in the memory of the ElNet unless the alarm is in ON position for the time duration as set In order to set the time duration for the sixteen timers select Set Delay Timer form the scr...

Page 73: ...ncludes all the information about existing alarms 1 In order to generate an alarm report from the Main Menu scroll to Alarm report and press Enter 2 Scroll to Historical Repot or Current report and se...

Page 74: ...be generated 1 In order to generate an event report from the Main Menu scroll to Alarm report and press Enter 2 Scroll to EN50160 Events and press Enter A list of EN50160 events appear 3 Press Enter i...

Page 75: ...he ElNet informs the value of the demand and the relevant power factor the time The date for all three phases the demand is the maximum value within the predefine time interval specified by the user P...

Page 76: ...data day by day for approximately two years From the Main Menu scroll to Data Logging and press Enter The following screen appears Figure 8 1 Data Logging Daily peaks Scroll to Daily peaks and press E...

Page 77: ...l value as specified in the following screen Figure 8 3 Current Peaks Select one of the above options and press Enter the following screen will appear Figure 8 4 Current Min L1 F1 F2 change the interv...

Page 78: ...and total energy Daily Energy The operation metod is very similar to the above pragraph Daily peaks and the informatin daily energy consumption for active energy reactive energy and apparent energy fo...

Page 79: ...equipment The RJ45 sockets support a standard connection to any Ethernet network 9 2 Communication Settings To enable the User connecting the ElNet Energy Powermeter to a PC master computer for succe...

Page 80: ...he communication line Quality the faster the communications may be If the communication line is routed through a noisy environment it may be necessary to decrease the Baud Rate Available Baud Rates fo...

Page 81: ...ctions to arrive at the Technical Menu 2 From Technical Menu scroll to Communication Settings 3 Click Enter the Communication Setup screen appears Figure 9 1 Communication Setup 4 From Communication S...

Page 82: ...ld 7 Use Button F3 or F4 to select Address Baud Rate Parity To set up Ethernet Communications 1 From the Communication Setup Menu scroll to Ethernet Comm 2 Click Enter the Set IPAddress screen appears...

Page 83: ...83 Figure 9 3 Set IPAddress 3 Use Button F1 or F2 to change IP Address 4 Use Button F3 or F4 to move the cursor Click Back to return to Technical menu Click Back to return to Main menu...

Page 84: ...ind the reading required in the MODBUS Registers Table 2 Note the Item Number from the Registers Table 3 Go to the correct File number Because File capacity in UniArt is limited to 128 parameters the...

Page 85: ...the user the wishes to read 7th Harmonic for Current Line 3 Item No 467 By applying the formula 467 3 X 128 83 File 3 and Point number within that file 83 More Examples E G No Item No Field Descriptio...

Page 86: ...current limits 6 A Operating Voltage limits 1000VAC Operating Current limits 50A Enclosure material ABS Anti flame Display Graphic 160x128 Operating temperature 20 50 C Storage temperature 20 80 C Hum...

Page 87: ...L L 0 000 510 V 0 000 510 V 0 001 99999KV Frequency Hz 45 001 65 001 Hz 45 001 65 001 Hz 45 001 65 001 Hz Active power total phase 0 000W 99999MW Reactive power total phase 0 000VAR 99999MVAR Apparent...

Page 88: ...000 510 V 0 001 99999KV Frequency Hz 45 001 65 001 Hz 45 001 65 001 Hz 45 001 65 001 Hz Active power total phase 0 000W 99999MW Reactive power total phase 0 000VAR 99999MVAR Apparent power total phase...

Page 89: ...packaging Remove from packaging Prepare hole Mount Meter Connect Meter power supply Connect 3 Current Transformers Connect 3 Voltage lines Connect Neutral line Set Current Transformer Ratio Connect Co...

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