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DPM680

1. ep EESE O21IW suojeJadO 139 H D TOUCH BUTTON FUNCTIONS to jump to the Current Demand Setup page as shown in Fig 34 touch the SET F2 button to jump to the Max Demand Current page touch the MAX F4 button otherwise touch the BACK F1 button to return to the CURRENT sub menu Fig 34 Current Demand Setup page CURRENT DEMAND SETUP Demand Interval 900 sec Sub intervals 2 TOUCH BUTTON FUNCTIONS to input new settings touch the SET F4 button otherwise touch the BACK F1 button to return to the CURRENT sub menu In the input mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white Demand interval can be set from 60 secs to 1800 secs in steps of 60 secs whereas the number of sub interval blocks can be set from 2 to 120 NOTE The demand interval in secs must be whole number multiples of the number of sub intervals and the sub interval period must be longer than 15 secs TOUCH BUTTON FUNCTIONS to increase the number touch the UP F2 button to decrease the number touch the DOWN F3 button to select the next field to change touch the NEXT F4 button and repeat the above 2 Steps to save the settings and or return to the Demand Current page touch the BACK F1 button NOTE When the Demand Interval is changed the sub intervals defaults to 2 Thi
2. Fig 1 Operation tree diagram Phase Voltage L Voltage Harmonics Voltage THD kacument Waveform TT iGurrent Harmonies __ Current THD Power Factor PF Freq Displacement PF PF and Freguency Power I Max Demand Power Energy T CT amp VT Ratios Ethernet TCP IP Modbus Setting Version Date amp Time Fatory Settings Max Demand Current Change Dev Password 1 2 CONTENT OF BOX Upon opening this box you should find the following items shown in Table 1 Table 1 Parts list Retainer clip Control power plug RS 485 plug Voltage input plug This instruction manual 1 3 PARTS OF THE POWER METER Fig 2 shows the outline dimension of the power meter Fig 2 Dimension of meter 17 mm 96 mm mm Front Side WW 96 E SW UOONpoJjU pa NS OA lo Oo O or p p Oo gt N HIW The parts and locations in the meter where connections and fastening is made is shown in Fig 3 and Table 2 Table 2 Location and parts labels B C D E F G H J wer input Voltage input Current input RS 485 port RJ45 port Retainer clip Retainer clip slot Control power plug Voltage input plug RS 485 plug Fig 3 Parts location D 3 c F B G A G Description Meter control power supply Metering voltage connection Metering current connection RS 485 connection for Modbus RTU LAN conne
3. Fig 57 Modbus sub page WA SET MODBUS Address 1 Data Format Even parity 1 stop Baud Rate 9600 Remote Set No TOUCH BUTTON FUNCTIONS to input new settings touch the SET F4 button otherwise touch the BACK F1 button to return to the Communication Setting page In the input mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white SW D r D im KS D mp kab En Ke ep CC8C LC8e O21IW CD r D p J O O CD R Q F Oo gt N CCE TOUCH BUTTON FUNCTIONS to increase the number or select the next option touch the UP F2 button e to decrease the number or select the prior option touch the DOWN F3 button to select the next field to change touch the NEXT F4 button and repeat the above 2 Steps to save the settings and or return to the Modbus sub page touch the BACK F1 button The unit Address can be set from 1 to 247 The serial Data Format options are shown in Table 3 Table 3 RS 485 data format Baud Rate can be set as either 300 600 1200 2400 4800 9600 19200 or 38400 Enabling the Remote Set allows the remote terminal to read and write the meter settings via Modbus RTU or Modbus TCP IP otherwise the setting data can only be read Before the saving of settings the user will be prompted for confirmation TOUCH BUTTON FUNCTIO
4. e overall total power factor nominal active reactive amp apparent power demand maximum peak active reactive and apparent power demand nominal thermal current demand all phases maximum peak power demand all phases time amp date The imported energy is the energy flow from the supply end to the load while the exported energy is the energy flow from the load to the supply end These parameters are NOT available for display at the meter By clicking on the links at the bottom of the webpage the browser will download the corresponding webpage Clicking on the Energy and Power link will reload this webpage SW suoljeJadg Jaja Ne 2 W suojeJadg 1319 No Fig 63 Energy and Power webpage display Mikro Digital Power Meter DPM650 Mater IP address 192 160 1 19 09 49 04 09 7017 Energy and Power 13141 4593174 36361 48 4920156 4 3 PARAMETER SETTING PAGE The Parameter Setting webpage can be downloaded by clicking on the Parameter Setting link in any page The following main webpage as shown in Fig 64 should appear In this webpage the user is allowed to modify the following displayed parameters VT primary voltage VT secondary voltage Fig 64 Energy and Power webpage display 21 NOTE The CT secondary current is fixed at 5A By clicking on the links at the bottom the brower will download the correspo
5. DOWN 3 8 1 CT amp VT RATIOS The CT amp VT Ratios page as shown in Fig 54 displays and allows the setting of the current transformer CT and voltage transformer VT ratios used to scale the metering inputs Fig 54 CT amp VT Ratios page E CT amp VT RATIOS CT Ratio VT Ratio 150 100 TOUCH BUTTON FUNCTIONS to select the parameter page of interest touch either the UP F2 or DOWN F3 button until the parameter item is highlighted within a dashed rectangular box and a RED dot to its left To confirm this selection touch the ENTER F4 button to return to the MAIN MENU touch the BACK F1 button The CT primary current input can be set from 5 A to 50 000 A but the CT secondary current output is fixed at 5A full scale The VT primary voltage input can be set from 60 V to 50 000 V and the VT secondary voltage output can be set from 60 V to 300V full scale NOTE The VT secondary voltage must be lower than the VT primary voltage TOUCH BUTTON FUNCTIONS to input new settings touch the SET F4 button otherwise touch the BACK F1 button to return to the SETTING sub menu In the input mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white TOUCH BUTTON FUNCTIONS to increase the number touch the UP F2 button to decrease the number touch the DOWN F3 button to select the next fiel
6. Positive negative and zero sequence voltages and currents Demand and maximum demand for current thermal demand phase and neutral Demand and maximum demand for active reactive and apparent power It s large colour graphics LCD also displays Scalable voltage and current waveforms Voltage and current harmonic spectrums up to the 32nd order For SCADA and remote monitoring this power meter also comes with Modbus RTU connectivity Modbus TCP IP connectivity Built in webserver 1 1 HOW TO USE THIS MANUAL For installation instruction the Installation chapter ch2 should be read carefully The OVERVIEW page amp MAIN MENU and Password Authentication sections of the Operations chapter ch3 covers the common steps before jumping to any parameter page The tree diagram shown in Fig 1 shows the menus sub menus pages and sub pages to navigate through before reaching the page of interest Please refer to the table of content to jump to the operation details in Operations chapter ch3 The chapters on Webpage Operations ch4 and Troubleshooting Guide ch6 can be used stand alone The Modbus Operations ch5 may be used in conjunction with the Modbus Table in Appendix B Information on calculation methods are given in Appendix C Detailed technical specifications and parametric limits are listed in Appendix A SW UONINpOUJUI SW 5 Oo O cre p Oo ED
7. If any of the above restrictions is violated the user will be prompted to review the violated restriction highlighted in red 4 3 1 WEBPAGE PASSWORD To authenticate the changing of parameters a valid webpage password must be entered The factory default webpage password is dpm680 The user is advised to set their own webpage password for security reasons This be done by entering the new webpage password in both the New Password and Retype New Password fields while entering current webpage password in the Password field NOTE The maximum length of the webpage password is 15 characters If an invalid webpage password is entered the parameter changes will not take place and the Invalid Password or Setting error message window will appear urging the user to retry 5 MODBUS OPERATIONS The meter is accessible through either Modbus RTU or Modbus TCPIP NOTE Itis NOT advisable to access the meter through both RTU and TCP IP at the same time The table of variables and their respective addresses are similar for both protocols and they are listed in Table B 1 in Appendix B The Modbus registers are divided into 4 broad categories Device Information Data Communication Information Data Setting Data Operations Data The registers in ALL categories can be accessed either through the function code 03 or 04 Only Setting Data registers can be written over through function code 06 Function code 0
8. SFFFFFFFF Voltage phase BN 0 1V 0 SFFFFFFFF Voltage phase CN 0 1V 0 SFFFFFFFF 7FFFFFFF to Real A 1W Real power B 1W 7FFFFFFF to 7FFFFFFF Real 1W 7FFFFFFF to Apparent power A 1VA 7FFFFFFF to 7FFFFFFF Apparent power B 1VA 7FFFFFFF to 7FFFFFFF 7FFFFFFF to Apparent power C 1VA 7FFFFFFF Reactive power A 1VAr 7FFFFFFF to 7FFFFFFF Reactive power B 1VAr piss Reactive power C 1VAr 7FFFFFFF to 7FFFFFFF Current demand A 0 001Arms 0 FFFFFFFF Current demand B 0 001Arms 0 FFFFFFFF Current demand C 0 001Arms 0 SFFFFFFFF Real power demand 1W ee Reactive power demand 1VAr 7FFFFFFF to 7FFFFFFF Apparent power demand 1VA 7FFFFFFF to 7FFFFFFF 6 a a S o m 0 2 o Table B 1 Modbus table Read Only Function 0x03 or 0x04 Register Descipton Mmunt 0 Range 4070 2 7071 Positive sequence current 0 001A 0 FFFFFFFF 4072 k 7073 Negative sequence current 0 001A 0 FFFFFFFF 4074 Zero sequence current 0 001A 0 FFFFFFFF 4075 4076 iti Positive sequence phase 0 1v 0 FFFFFFFF 4077 voltage 4078 i Negative sequence phase 0 1V 0 SFFFFFFFF 4079 voltage 4080 7081 Zero sequence phase voltage 0 1V 0 FFFFFFFF 4082 Current THD A 0 7000 7053 Current THD BF 0 1000 4084 Curent THD CF 0 7000 4085 Voltage THD AT 01000 4086 Voltage THD B7 0 7000 4087 Voltage THD C 0 1 0 1000 kx Setting Data Read or write Function 0x03 0x04 o
9. The default device password is 9999 The user is advised to set their own password for security reasons On the other hand the factory setting password is fixed at 6256 and it cannot be changed TOUCH BUTTON FUNCTIONS to increase the number touch the UP F2 button to decrease the number touch the DOWN F3 button to select the next active field to change touch the NEXT F1 button and repeat the above 2 Steps SW suoeJadO Jalan E No O2IW suojeJadO 139 on No to abort the operation and return to the previous page touch the ABORT F4 button to confirm the password touch the ENTER F4 button If the password is wrong an error message will appear and the above process has to be repeated unless aborted by touching the ABORT F4 button NOTE In a delta system without any neutral as shown in Figs 8 and 9 the phase guantities are measured with respect to a virtual neutral point 3 3 VOLTAGE SUB MENU The VOLTAGE sub menu allows the selection of voltage parameter pages as shown in Fig 18 Fig 18 VOLTAGE sub menu C B Phase Voltage LN Line Voltage LL Peak Voltage Waveform Voltage Harmonics Seguence Voltages T DOWN TOUCH BUTTON FUNCTIONS to select the parameter page of interest touch either the UP F2 or DOWN F3 button until the item of interest is highlighted within a dashed rectangular box and a RED dot to its left to co
10. Fig 27 Phase Current page PHASE CURRENT TOUCH BUTTON FUNCTIONS to jump to the Peak Current page touch the PEAK F2 button to jump to the Current Harmonics page touch the HAR F3 button to jump to the Current Waveform page touch the WAVE F4 button otherwise touch the BACK F1 button to return to the CURRENT sub menu 3 4 2 PEAK CURRENT The Peak Current page shows the recorded maximum true RMS current of each phase and where applicable neutral since the last reset as shown in Fig 28 Fig 28 Peak Current page PEAK CURRENT T 111 6A 112 Ee 136 7 A 137 ja 124 7 a 125 UN 79 8 80 TOUCH BUTTON FUNCTIONS to jump to the Phase Current page touch the PHASE F2 button to jump to the Current Harmonics page touch the HAR F3 button to reset the recorded maximum current values to zero touch the RESET F4 button otherwise touch the BACK F1 button to return to the CURRENT sub menu 3 4 3 CURRENT WAVEFORM The Current Waveform page shows the current waveform of all phases shown in Fig 29 Fig 29 Current Waveform page PHASE CURRENT The RED YELLOW and BLUE traces show the current waveform of phases L1 L2 and L3 respectively The three display zoom levels correspond to a maximum range of approximately 20 40 and 80 of the rated rms metering current input 5A The time capture span is fixed at approximately 65 msec NO
11. Mikro also reserves the right to vary the product from that described in this material without prior notice COPYRIGHT The licensed software contained in the product is proprietary software owned by Mikro or its third party suppliers and it shall be used solely in connection with the product TABLE OF CONTENT INTRODUCTION 1 1 How to use this Manual 1 2 Content of Box 1 3 Parts of the Power Meter INSTALLATION 21 Precautions 2 2 Meter Placement amp Connections 2 3 Meter Setup 2 4 TCP IP Connection Setup 3 METER OPERATIONS 3 1 OVERVIEW page amp MAIN MENU 3 2 Password Authentication 3 3 VOLTAGE sub menu 3 31 Phase Voltage 3 3 2 Line Voltage 3 3 3 Peak Voltage 3 3 4 Voltage Waveform 3 3 5 Voltage Harmonics 3 3 6 Sequence Voltages 3 4 3 5 3 6 CURRENT sub menu 3 4 1 Phase Current 3 4 2 Peak Current 3 4 3 Current Waveform 3 44 Current Harmonics 3 4 5 Sequence Currents 3 4 6 Demand Current 3 4 7 Max Demand Current PF amp FREQUENCY sub menu 3 5 1 Power Factor PF 3 5 2 Displacement PF 3 5 3 PF amp Freguency POWER sub menu 3 6 1 Active Power 3 6 2 Reactive Power 3 6 3 Apparent Power 3 6 4 Total Power 3 6 5 Demand Power 3 6 6 Max Demand 23 24 24 25 26 27 27 29 30 31 31 32 33 33 34 35 35 36 37 21 D o CD O O r ar Em r O2IW a EJ CD Oo Q Oo r CD r TABLE OF CONTENT 3 7 3 8 ENERGY sub menu 3 7 1 Acti
12. e Mi kro Power Mete Mikro DPM 680 MAIN MENU Instruction Manual BEFORE YOU BEGIN Please read this instruction manual thoroughly before installation operation and maintenance of the DPM680 power meter This power meter should NOT be installed or used for primary protection Do not use the device in applications where its failure can cause harm or death Avoid high fire risk applications The symbol on the left is used throughout this instruction manual to alert the user or personnel of the danger or to prompt caution during the installation and maintenance process EMC COMPLIANCE This power meter has been tested and found to comply with the limits of the IEC EN61000 EMC standards These standards are designed to provide reasonable protection against interference when using this device Failure to install or use the device in accordance with the instruction may cause harmful inteference This does not however guarantee that inteference will not occur in any installation In case of inteference the user is encouraged to relocate or reorient the victim emitting equipment change the connection point of the victim emitting equipment increase the distance between the victim emitting equipment and the power meter Please consult a qualified technician for assistance DISCLAIMER Mikro shall not be liable for errors contained herein including any incidental and or consequential damages arising from the use of this material
13. is4 3 i aj Lata WE C 2 TOTAL HARMONIC DISTORTION CALCULATION Total Harmonic Distortion THD is a power quality indicator used to show the extent of voltage and current waveform distortion by the load The THD is calculated by the following equation THD h h h h32 h4 x100 where hn represents the ni harmonic component of the quantity resolved using Fourier s Transform C 3 SEQUENCE COMPONENTS CALCULATION Sequence components are abstract quantities resolved from the phase voltages and currents They describe the degree and nature of imbalance and phase reversal Any 3 phase system can be resolved into 3 balanced 3 phase components positive negative and zero sequences using the following equations Att lah zero A l al ta pos I a l ala neg 2 4 where a 120 unit vector phase shifter Vaer YA V T V2 t V3 Vpos 4 Vy aV APV V ieu E VA V aV aV3 These values are useful for identifying sources of imbalance and for troubleshooting protective relay settings and wiring faults such as phase reversals SW XIpusddy No O2IW xipusdd y P C 4 POWER FACTOR CALCULATION The total power factor is a measure of effectiveness of actual power transfer and it is calculated by the following equation Total power factor Active power RMS voltage x RMS current Active power Apparent power The overall total power f
14. parameters for all phases as shown in Fig 15 Fig 15 OVERVIEW page EEB OVERVIEW 12 2200 w F1 F2 F3 F4 TOUCH BUTTON FUNCTIONS when any button is touched the MAIN MENU will be displayed as shown in Fig 16 below to go to the sub menu of interest touch the SELECT F2 button in multiple times until the corresponding icon is highlighted within a dashed rectangular box as shown in Fig 16 To confirm this selection touch the ENTER F4 button to return to the OVERVIEW page touch the HOME F1 button in the MAIN MENU Fig 16 MAIN MENU MAIN MENU Voltage Current PF Frag When the power meter is left idle for more than 5 minutes the display will default to the OVERVIEW page 3 2 PASSWORD AUTHENTICATION For authentication in the parameter setting operations the user may be prompted for a valid password In this mode the Enter Password window as shown in Fig 17 below will appear Fig 17 Enter Password window TOUCH BUTTON FUNCTIONS to abort the operation and return to the previous page touch the ABORT F4 button otherwise touch the SET F1 button to enter the input password mode In the input password mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white NOTE The device password will be used for all authentication purposes except in the Factory Settings sub page
15. Energy page hi u 244 1 04 kVarh 554 574 kVarh 758 578 kVarh E 448 1 74 kVarh The displayed values may be incomplete due to the limited display width Use the and gt buttons to view the complete values SW SuojeJad 1319 E EN O2IW z lt CD r D p J O O CD Q F Oo gt N CE TOUCH BUTTON FUNCTIONS e to view the digits on the right of the displayed numbers touch the lt F1 button to view the digits on the left of the displayed numbers touch the gt F2 button to jump to the Apparent Energy page touch the S F4 button otherwise touch the BACK F1 button to return to the ENERGY sub menu 3 7 3 APPARENT ENERGY The Apparent Energy page shows the nett apparent energy for each phase as well as the total nett apparent energy as shown in Fig 51 Fig 51 Apparent Energy page _ ul 3 994 3 Wan 5 315 4 ewan 5 280 3 van 14 590 7 Wan The displayed values may be incomplete due to the limited display width Use the lt and gt buttons to view the complete values TOUCH BUTTON FUNCTIONS e to view the digits on the right of the displayed numbers touch the lt F1 button to view the digits on the left of the displayed numbers touch the gt F2 button to jump to the Total Energy page touch the ALL F4 button otherwise touch the BACK F1 button to return to the ENERGY sub menu 3 7 4 TOTAL ENER
16. SUB MENU The PF amp FREQUENCY sub menu allows the selection of parameter pages as shown in Fig 36 Fig 36 PF amp FREQUENCY sub menu PF amp FREQUENCY Power Factor PF ie Displacement PF PF and Frequency TOUCH BUTTON FUNCTIONS to select the parameter page of interest touch either the UP F2 or DOWN F3 button until the parameter item is highlighted within a dashed rectangular box and a RED dot to its left To confirm this selection touch the ENTER F4 button to return to the MAIN MENU touch the BACK F1 button 3 5 1 POWER FACTOR PF The Power Factor page shows the total power factor for each phase as well as the overall total power factor as shown in Fig 37 The total power factor is derived from the phase RMS voltage RMS current and active power Please see section C 4 in Appendix C for more details Fig 37 Power Factor A POWER FACTOR 0 982 Cap 0 995 Cap 0 978 Cap 0 986 Cap The right most column of the display indicates the capacitive or inductive nature of the power factor TOUCH BUTTON FUNCTIONS to jump to the Displacement PF page touch the DPF F2 button to jump to the PF amp FREQUENCY page touch the ALL F4 button otherwise touch the BACK F1 button to return to the PF amp FREQUENCY sub menu 3 5 2 DISPLACEMENT PF The Displacement PF page shows the displacement power factor for each phase as shown in Fig 38 The displacement powe
17. TCP IP NETWORK IP Address 192 168 28 28 Subnet Mask 255 255 255 0 The default TCP IP setting is as follows IP address 192 168 28 28 Subnet mask 255 255 255 0 NOTE The server is not DHCP enabled so the IP address has to be assigned manually TOUCH BUTTON FUNCTIONS to input new settings touch the SET F4 button otherwise touch the BACK F1 button to return to the Communication Setting page In the input mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white Each field in the IP address and subnet mask must be numerical from 0 to 255 TOUCH BUTTON FUNCTIONS to increase the number touch the UP F2 button to decrease the number touch the DOWN F3 button to select the next field to change touch the NEXT F4 button and repeat the above 2 Steps to save the settings and or return to the Ethernet TCP IP sub page touch the BACK F4 button The user will be prompted to confirm the saving of settings TOUCH BUTTON FUNCTIONS to abort saving the settings touch the NO F3 button to return to the Ethernet TCP IP sub page otherwise touch the YES F2 button to save the settings and the user will be prompted for password authentication as in section 3 2 3 8 2 2 MODBUS The Modbus sub page displays and allows the setting of Modbus communication parameters as shown in Fig 57
18. intervals defaults to 2 This can however be changed separately when the NEXT F4 button is touched The user will be prompted to confirm the saving of settings TOUCH BUTTON FUNCTIONS to abort saving the settings and return to the Demand Power page touch the NO F3 button otherwise touch the YES F2 button to save the settings and the user will be prompted for password authentication as per section 3 2 3 6 6 MAX DEMAND In the Max Demand page the recorded maximum demand power for active reactive and apparent power is displayed as shown in Fig 47 Fig 47 Max Demand page F MAXIMUM DEMAND EE 69800 w a 144355 var _s 70135 va DMD SW CD r D ra O O CD pupi Q S Oo gt ep P SSE O2IW CD r D p J O O D Q F Oo gt N EE TOUCH BUTTON FUNCTIONS touch the BACK F1 button to return to the POWER sub menu to jump to the Demand Power page touch the DMD F3 button to reset the recorded maximum demand power values to zero touch the CLR F2 button In clearing the recorded maximum values the user will be prompted with a Clear demand log confirmation TOUCH BUTTON FUNCTIONS to confirm clearing the recorded values touch the YES F3 button otherwise touch the NO F2 button In any case the meter will return to the Demand Power page 3 7 ENERGY SUB MENU The ENERGY sub menu allows the selection of en
19. to return to the CURRENT sub menu In the Current THD parameter page the current THD for each phase is displayed as shown in Fig 31 Fig 31 Current THD parameter page 0h as 64 y es 19 x 85 y BACK AN AN TOUCH BUTTON FUNCTIONS to return to the Current Harmonics page touch the BACK F4 button 3 4 5 SEQUENCE CURRENTS The Sequence Current page shows the positive negative and zero sequence currents as shown in Fig 32 They are useful for identifying abnormalities such as current imbalance and phase reversals Please see section C 3 in Appendix C for details Fig 32 Sequence Current page SEQUENCE CURRENTS i TTA 7 a 8 8 9 Lo 91A 9 WAVE TOUCH BUTTON FUNCTIONS to jump to the Peak Current page touch the PEAK F2 button to jump to the Phase Current page touch the PHASE F3 button to jump to the Current Waveform page touch the WAVE F4 button otherwise touch the BACK F1 button to return to the CURRENT sub menu 3 4 6 DEMAND CURRENT The Demand Current page shows the demand current averaged over a demand interval for each phase as shown in Fig 33 The neutral demand current is not shown The demand current is calculated using the thermal demand method Please see section C 1 in Appendix C for details Fig 33 Demand Current page ka DEMAND CURRENT m 70 20 70 ea 92 14 92 E 71 64 72 SW D r D rn KS D mp kab En Ke
20. warning message that all settings and device password will be reset to the factory default values except for the energy register values The energy registers can be cleared through the Reset Energy Counter page TOUCH BUTTON FUNCTIONS to abort resetting the meter to default values touch the NO F3 button to return to the System Settings page otherwise touch the YES F2 button and the user will be prompted for password authentication as in section 3 2 The password for this purpose is the factory setting password Please see section 3 2 for more details 3 8 4 FOR FACTORY USE ONLY The access to the For Factory Use Only page is restricted to factory personnel only 4 WEBPAGE OPERATIONS The webpages stored in the meter s built in server can be accessed by a browser However it is recommended to use IE7 or higher versions NOTE Please ensure the LAN is properly connected to the meter and the TCP IP setting is properly configured both at the meter and the client and or router 4 1 VOLTAGE AND CURRENT PAGE The Voltage and Current webpage can be accessed either by typing the IP address in the URL input of the web browser or by clicking on the Voltage amp Current link in any page In systems where NetBIOS is implemented the webpage may also be accessed through http dpm680 provided the client or PC is in the same subnet The main webpage as shown in Fig 62 should appear This main we
21. 255 255 0 These values can be changed at the meter as explained in section 3 8 2 1 Only devices within the sub network as defined by the subnet mask can communicate with the meter In the instance of the above default subnet mask only devices e g PC or router etc with IP addresses that begin with 192 168 28 can communicate with the meter For direct PC connection the IP address can be changed as follows a go to the START menu and click on the Control Panel label b under the Network and Internet heading click on the View network status and tasks link c under the Tasks sidebar click on the Manage network connections link d double click on the LAN port that is connected to the meter You may be asked by Windows for access permission Upon confirmation you will see the Local Area Connection Properties window as shown in Fig 13 Leal Area Lonte Properties Networking Shang Comed umng MP Brodem Hein TM Gya Bhare Cerig Pea ferred cee leg the e ES Bel 2 Ghent for Microsoft etmodcs mi giai Piped Seat bi Bb Fil pad Pater Sharing bar Mariel Hamaka bi kabari Preiss Weston 6 TOP TP yep W a abena Praies zl Wasaa d TCP Tl fl Lied Layer Tapeless Discovery Mapper LO Dever Ke LirkiLayer Topology Olacenrory Fheaperscher Properties Fig 13 Local Area Connection Properties window e Single click to highlight the Internet Protocol Version 4 TCP IPv4 bar and click on the Properties button The I
22. 485 Odd parity 1 stop Read Only Function 0x03 or 0x04 even parity 1 stop Register Description Minunit Ranga e no parity 1 stop or 2 stop xipusdd y D Ke Ke D 2 x 11 3 Base T speed Auto negotiate 100M 10M 2 E e o o gt 12 2 Supply voltage DC 300 V 100 V CD i S 12 5 AC Sustained overload 500 V e i S IP Address 0 SFF 0 SFF e E T o Subnet mask 90 010 0 FF O FF 13 1 Overvoltage categor IV byte1 byte2 byte3 byte4 10 01 0 FF 0 FF g gory 13 2 Pollution degree 2 ee Sree 13 3 Operating temperature 55 C 10 C wi 13 4 Storage temperature 70 C 20 C 13 5 Humidity Non condensing 95 5 E ee lt SIFFFFFFFFFFFFFF 14 M i 4 Mechanical 5 F 7FFFFFFFFFFFFFFF to y ke 14 2 Dimension 96 x 96 x 83 mm 7FFFFFFF to o 7FFFFFFF to 2 PENA TEMPAT 15 2 Safety IEC 61010 1 15 3 Environment IEC 60068 2 O2IW xipusdd y Table B 1 Modbus table a a c o pan o 2 o Read Only Function 0x03 or 0x04 Register Description Min unit Instantaneous current B 0 001A 0 FFFFFFFF Instantaneous current C 0 001A 0 FFFFFFFF instantaneous current N 0 001A 0 FFFFFFFF Voltage line AB 0 1V 0 FFFFFFFF Voltage line BC 0 1V 0 SFFFFFFFF Voltage line AC 0 1V 0 SFFFFFFFF Voltage phase AN 01V 0
23. 6 can only be enabled through the meter touch buttons please see section 3 8 2 2 The physical interface for Modbus RTU is isolated RS 485 Therefore the limitations and restrictions according to the RS 485 standard must be observed In particular the total length should not be more than 1 000 m per network and each network should be daisy chained with not more than total 32 devices In the Modbus TCPIP interface the physical interface is 10M 100M Base T Ethernet based on IPv4 The meter may auto negotiate with the PC or router whenever possible to run at 100M Base T speed if available NOTE The device ID is fixed at 1 for Modbus TCP IP The Modbus server is limited to opening no more than 2 TCP IP sockets i e it can serve no more than 2 clients The Modbus TCP IP server shares the same TCP IP stack with the webserver therefore sharing the same IP address and subnet mask As such DHCP also not enabled for the Modbus TCP IP server SW CD D ra O O D mp Q S Oo gt ep O2IW tak Oo o gp dp Dy O mp Ke MD O D 6 TROUBLESHOOTING GUIDE The meter contains no user serviceable parts Please contact your dealer or local sales representative should the meter reguire maintenance service Table 4 shows some basic checking that can be Please do NOT open the meter done at the user level to identify some possible Doing so will void the warranty and caus
24. 9 REACTIVE POWER 17562 va E 57461 a B The Reactive Power page shows the nett W o V reactive power for each phase as well as the total TOUCH BUTTON FUNCTIONS 22892 VA 61 35 w nett reactive power as shown in Fig 42 to jump to the Active Power page touch the 17608 A a VAR oO Fig 42 Reactive Power page P F2 button _s 58416 VA R REACTIVE POWER 5809 1 VA to jump to the Total Power page touch the o o gt es o o gt IN F ALL F3 button 3036 vaR 3 fe 281 VAR to jump to the Apparent Power page touch the S F4 button TOUCH BUTTON FUNCTIONS TOUCH BUTTON FUNCTIONS 05 3271 VAR to jump to the Active Power page touch the to jump to the Active Power page touch the otherwise touch the BACK F1 button to SN aien PAE Ir 6216 VAR return to the POWER sub menu to jump to the Reactive Power page touch to jump to the Reactive Power page touch the Q F3 button the Q F3 button to jump to the Total Power page touch the to jump to the Apparent Power page touch ALL F4 button the S F4 button otherwise touch the BACK F1 button to otherwise touch the BACK F1 button to return to the POWER sub menu return to the POWER sub menu O2IW suojeJadO Jalan R H on 3 6 5 DEMAND POWER The Demand Power page shows the demand power averaged over a demand interval for active reactive and apparent power as shown in Fig 45 Please see section C 1 in Appendix
25. C for details Fig 45 Demand Power page F DEMAND POWER Ea 57425 w a 6170 var _s 58185 va TOUCH BUTTON FUNCTIONS to jump to the Power Demand Setup page as shown in Fig 46 touch the SET F2 button to jump to the Max Demand page touch the MAX F4 button otherwise touch the BACK F1 button to return to the POWER sub menu Fig 46 Power Demand Setup page F POWER DEMAND SETUP Demand Interval 900 sec Sub intervals 3 TOUCH BUTTON FUNCTIONS to input new settings touch the SET F4 button otherwise touch the BACK F1 button to return to the POWER sub menu In the input mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white Demand interval can be set from 60 secs to 1800 secs in steps of 60 secs whereas the number of sub interval blocks can be set from 2 to 120 NOTE The demand interval in secs must be whole number multiples of the number of sub intervals and the sub interval period must be longer than 15 sec TOUCH BUTTON FUNCTIONS to increase the number touch the UP F2 button to decrease the number touch the DOWN F3 button to select the next field to change touch the NEXT F4 button and repeat the above 2 Steps to save the settings and or return to the Demand Power button page touch the BACK F1 buttons NOTE When the Demand Interval is changed the sub
26. Fig 40 Fig 40 POWER sub menu P Active Power ans AT ReactvePower Apparent Power Total Power Demand Power TOUCH BUTTON FUNCTIONS to select the parameter page of interest touch either the UP F2 or DOWN F3 button until the parameter item is highlighted within a dashed rectangular box and a RED dot to its left To confirm this selection touch the ENTER F4 button to return to the MAIN MENU touch the BACK F1 button 3 6 1 ACTIVE POWER The Active Power page shows the nett active power for each phase as well as the total nett active power as shown in Fig 41 Fig 41 Active Power page F ACTIVE POWER fy 1705 w w 22494 w E 703 v E 56784 w BACK PAL MNC MASA TOUCH BUTTON FUNCTIONS to jump to the Total Power page touch the ALL F2 button to jump to the Reactive Power page touch the Q F3 button to jump to the Apparent Power page touch the S F4 button SW SuojeJad 1319 ML O 2 otherwise touch the BACK F1 button to 3 6 3 3 6 4 P return to the POWER sub menu APPARENT POWER TOTAL POWER 6 i The Apparent Power page shows the nett apparent The Total Power page shows the total nett power i power for each phase as well as the total nett flow for active reactive and apparent power as apparent power as shown in Fig 43 shown in Fig 44 D Fig 43 Apparent Power page Fig 44 Total Power page D Ta A A f A 362 Li NN S
27. GY The Total Energy page shows the total nett energy flow for active reactive and apparent energy as shown in Fig 52 Fig 52 Total Energy page TOTAL ENERGY P 13 291 9 kwh al 448 619 kVarh s 14 591 8 kvan The displayed values may be incomplete due to the limited display width Use the lt and gt buttons to view the complete values TOUCH BUTTON FUNCTIONS to view the digits on the right of the displayed numbers touch the F1 button to view the digits on the left of the displayed numbers touch the gt F2 button to jump to the Active Energy page touch the P F4 button otherwise touch the BACK F1 button to return to the ENERGY sub menu 3 7 5 RESET ENERGY COUNTERS When the Reset Energy Counter page is selected the user will be prompted with a Clear All Registers confirmation TOUCH BUTTON FUNCTIONS to abort clearing the energy register values touch the NO F2 button otherwise touch the YES F2 button to clear the energy registers and the user will be prompted for password authentication as in section 3 2 SW CD D ra O KS D mp Q S Oo gt ep 22 O2IW suojeJadO 1319 Sri co 3 8 SETTING SUB MENU The SETTING sub menu allows the selection of parameter pages as shown in Fig 53 Fig 53 SETTING sub menu r SETTING CT amp VT Ratios 2 O Communication Settings System Settings For Factory Use Only
28. NS to abort saving the settings touch the NO F3 button to return to the Modbus sub page otherwise touch the YES F2 button to save the settings and the user will be prompted for password authentication as in section 3 2 3 8 3 SYSTEM SETTINGS The System Settings page displays the system parameters and allows the adjustment of time date and password as shown in Fig 58 Fig 58 System Settings page SYSTEM Date amp Time Change Device Password Factory Settings DOWN TOUCH BUTTON FUNCTIONS to select the parameter sub page of interest touch either the UP F2 or DOWN F3 button until the parameter item is highlighted within a dashed rectangular box and a RED dot to its left To confirm this selection touch the ENTER F4 button to return to the SETTING sub menu touch the BACK F1 button 3 8 3 1 VERSION The Version sub page displays the basic identity information of the power meter as shown in Fig 59 Fig 59 Version sub page ya SYSTEM INFO Product Digital Power Meter Model DPM 680 Version 1 00 BACK TOUCH BUTTON FUNCTIONS to return to the System Settings page touch the BACK F2 button SW D D rr KS D mp kab En oO ep 6 0 0 O2IW z lt CD r D p J O O CD Q F Oo gt N CEBE 3 8 3 2 DATE amp TIME The Date amp Time sub page displays and allows the setting of date a
29. ONS to jump to the Peak Voltage page touch the PEAK F2 button to jump to the Phase Voltage page touch the PHASE F3 button to jump to the Voltage Waveform page touch the WAVE F4 button otherwise touch the BACK F1 button to return to the VOLTAGE sub menu 3 4 CURRENT SUB MENU The CURRENT sub menu allows the selection of current parameter pages as shown in Fig 26 Fig 26 CURRENT sub menu CURRENT Phase Current Peak Current Waveform Current Harmonics Sequence Currents Demand Current DOWN ENTER The right most column of the current value display shows the corresponding percentage loading of the rated metering current input TOUCH BUTTON FUNCTIONS to select the parameter page of interest touch either the UP F2 or DOWN F3 button until the parameter item is highlighted within a dashed rectangular box and a RED dot to its left To confirm this selection touch the ENTER F4 button to return to the MAIN MENU touch the BACK F1 button NOTE In a star system without a neutral CT as shown in Fig 7 the displayed neutral current is derived from the summation of the phase CT currents NI D D Tn KS D mp kab En ke ep EEEE D oJI W suojeJadO 139 on s 3 4 1 PHASE CURRENT The Phase Current page shows the true RMS current of each phase and where applicable neutral as shown in Fig 27
30. TE The displayed waveform is solely for visual inspection and not for measurement purposes The waveform is the captured current at the metering current input not necessarily the actual phase current TOUCH BUTTON FUNCTIONS to change the trigger source among the 3 phases touch the TRIG F1 button to zoom out the current display scale touch the F2 button to zoom in the current display scale touch the F3 button otherwise touch the BACK F4 button to return to the CURRENT sub menu SW suoyeJadO 1319 oF In Se O2IW suojeJadO 139 o gt IN 3 4 4 CURRENT HARMONICS The Current Harmonics page shows the current harmonics spectrum and the current Total Hormonic Distortion THD of each phase Upon entering this parameter page the current harmonics spectrum will be displayed as shown in Fig 30 The neutral harmonics content will NOT be displayed Fig 30 Current Harmonics page CURRENT HARMONICS The harmonics content is displayed as a percentage of the fundamental phase current Please see section C 2 in Appendix C for more details TOUCH BUTTON FUNCTIONS to alternate between the odd and even harmonics spectrum display touch the EVEN F2 or ODD F2 button to display the spectrum of the next phase touch the NEXT F3 button to jump to the THD parameter page as shown in Fig 31 touch the THD F1 button otherwise touch the BACK F4 button
31. actor is calculated based on arithmetic apparent power and total active power On the other hand the displacement power factor is calculated using only the fundamental components of the voltage current and active power i e Displacement power factor Fundamental active power Fundamental RMS voltage x Fundamental RMS current Ok Mikro No 1 Jalan TP 7 7 Sime UEP Industrial Park 40400 Shah Alam Selangor Malaysia Website www itmikro com Tel 603 5192 7155 Fax 603 5192 7166
32. ak phase L1 N L2 N amp L3 N 50 kV voltage 2 Direct phase current through CT L1 L2 4 L3 10A 5 mA 1 mA 2 Curre nt 0 2 of full scale 2 2 Indirect phase current through CT Bet 50 kA 2 3 Peak phase current L1 L2 amp L3 50 kA 2 4 Pulse withstand 1 sec 100A SW XIpusddy gt O2IW xipusdd gt Table A 1 Specification list Parameter Max value Min value Resolution Accuracy 3 1 CT primary L1 L2 amp L3 5A 50 kA 1A current 3 2 Current input P2 MESIN 0 05 VA burden 3 3 VT primary L1 N L2 N amp L3 N 60 V 50 kV 1V voltage 3 4 VT secondary L1 N L2 N 8 L3 N 60 V 300V 1V voltage 4 1 Active power L1 L2 L3 amp Total 2 x 107 W 0 5 4 2 Reactive power L1 L2 L3 amp Total 2 x 10 VAR 0 5 4 3 Apparent power L1 L2 L3 amp Total 2 x 10 VA 0 5 5 1 Active energy L1 L2 L3 amp Total 9x 108 1 Wh IEC Wh 62053 22 Class 0 5 5 2 Reactive energy L1 L2 L3 amp Total 9 x 1018 1 Varh IEC Varh 62053 23 Class 2 5 3 Apparent L1 L2 L3 amp Total 9x 10 1 VAh E energy VAh 6 1 Total power L1 L2 L3 amp Nett 1 000 0 5 0 001 0 5 1A factor to 5A 6 2 Displacement 128 3 1 000 0 5 0 001 0 5 1A power factor to 5A Table A 1 Specification list No P
33. arameter Max value Min Resolution value Accuracy 7 1 Voltage THD L1 L2 amp L3 100 0 0 1 7 2 Current THD ETRIE 100 0 0 1 7 3 Harmonics L1 L2 L3 amp Total 32nd Fundamental order display 7 4 Frequency 65 00 45 00 0 01 Hz 0 2 Hz Positive negative Hz 50 kV 8 1 Sequence voltage amp zero 8 2 Sequence Positive negative 50 kA current amp zero interval blocks power 9 1 Thermal L1 L2 amp L3 50 kA demand current nominal amp max 9 2 Max thermal L1 L2 8 L3 50 kA current demand 9 3 Power demand PA amp S 2 x 10 3 W 9 4 Max power PQ amp S 2 x 10 z demand W 9 5 Demand interval Thermal current amp 1800 sec 60 sec 60 sec power 9 6 Demand sub Thermal current amp 180 2 scale current 10 1 Voltage full L1 L2 amp L3 110 V 220 V amp 440 V rms scale 10 2 Current full L1 L2 amp L3 20 40 amp 80 of rated rms SW XIpusddy gt Table A 1 Specification list No Parameter Max Min Resolution Accuracy APPENDIX B O2IW SW value value 11 Communication MODBUS TABLE l l l l Al Baud rate Isolated RS 485 300 600 1200 2400 4800 Table A 2 below shows the variables accessible through Modbus for both read and write functions 2600 1220s 4700 BBS Table B 1 Modbus table 11 2 Data format Isolated RS
34. bpage displays the following parameters line voltage between any 2 phases phase voltage all phases maximum peak phase voltage all phases current all phases and neutral maximum peak current all phases amp neutral current THD all phases voltage THD all phases voltage sequence component positive negative amp zero current Sequence component positive negative amp zero line frequency time amp date 21 suoljeJadg Jaja aN SW suojeJadO 139 EIN By clicking on the links at the bottom of the webpage the browser will download the corresponding webpage Clicking on the Voltage and Current link will reload this webpage Fig 62 Voltage and Current webpage display Mikro Digital Power Meter DPM680 Meter IP address 192 168 1 19 09 39 04 09 2012 Voltage and Current B 20 235 70 860 111 618 4 2 ENERGY AND POWER PAGE The Energy and Power webpage can be downloaded by clicking on the Energy and Power link in any page The webpage as shown in Fig 63 should appear This webpage displays the following parameters nett active reactive and apparent power all phases amp total nett active reactive and apparent energy all phases amp total imported active reactive and apparent energy all phases e exported active reactive and apparent energy all phases displacement and total power factor all phases
35. ch the F2 button to zoom in the voltage display scale touch the F3 button of the fundamental phase voltage Please see section C 2 in Appendix C for more details The harmonics content is displayed as a percentage SW CD r D rn KS D mp kab En Ke ep ee 22 O2IW CD r D O O CD Q F Oo gt N SE TOUCH BUTTON FUNCTIONS to alternate between the odd and even harmonics spectrum display touch the EVEN F2 or ODD F2 button to display the spectrum of the next phase touch the NEXT F3 button to jump to the THD parameter page as shown in Fig 24 below touch the THD F1 button otherwise touch the BACK F4 button to return to the VOLTAGE sub menu In the Voltage THD parameter page the voltage THD for each phase is displayed as shown in Fig 24 Fig 24 Voltage THD parameter page VOLTAGE THD m 1 0 y 12 x 11 y TOUCH BUTTON FUNCTIONS to return to the Voltage Harmonics page touch the BACK F4 button 3 3 6 SEQUENCE VOLTAGES The Sequence Voltages page shows the positive negative and zero sequence RMS phase voltages as shown in Fig 25 They are useful for identifying abnormalities such as voltage imbalance and phase reversals Please see section C 3 in Appendix C for details Fig 25 Sequence Voltages page SEQUENCE VOLTAGES 249 9 v E 11 v _o 1 3 v WAVE TOUCH BUTTON FUNCTI
36. ction for Modbus TCP IP amp webserver Clip to hold meter in cut out hole Location to slide the retainer clips Meter control power detachable terminal block Metering voltage detachable terminal block RS 485 detachable terminal block 2 INSTALLATION 2 1 AN PRECAUTIONS Please observe the following safety precautions before and during the installation of the power meter Only competent and trained personnel should install this device Use appropriate personal protective gloves glasses and clothing Never work alone Disconnect ALL metering control power and communication power sources to the meter before performing installation inspection test and maintenance Do not perform megger hi pot or any high voltage stress test with the meter connected to the system Use a shorting block to short circuit the CTs before disconnecting from the meter Install in a suitable enclosure where meter connections are inaccessible with sufficient clearance from other live parts Do not bypass any fuse Follow safe electrical work practices Use only dry clothes to wipe the meter Please note that incorrect installation may impair the operation or even damage the meter There is no user servicable part in the meter Tampering with the meter may damage the meter resulting in injury or even death and also O2IW voiding any warranty A v 2 2 2 5 METER PLACEMENT amp CONNECTIONS Before installing the po
37. d to change touch the NEXT F4 button and repeat the above 2 Steps to save the settings and or return to the CT amp VT Ratios sub page touch the BACK F1 button The user will be prompted to confirm the saving of settings TOUCH BUTTON FUNCTIONS to abort saving the settings touch the NO F3 button to return to the SETTING sub menu otherwise touch the YES F2 button to save the settings and the user will be prompted for password authentication as in section 3 2 3 8 2 COMMUNICATION SETTINGS The Communication Settings page displays and allows the setting of the communication parameters as shown in Fig 55 Fig 55 Communication Settings page ya COMMUNICATION Ethernet TCP IP Modbus DOWN SW SuojeJad 1319 3 Mr 2 W CD r D p J O O CD Q F Oo gt N CBE TOUCH BUTTON FUNCTIONS e to select the parameter sub page of interest touch either the UP F2 or DOWN F3 button until the parameter item is highlighted within a dashed rectangular box and a RED dot to its left To confirm this selection touch the ENTER F4 button to return to the SETTING sub menu touch the BACK F1 button 3 8 2 1 ETHERNET TCP IP The Ethernet TCP IP sub page as shown in Fig 56 displays and allows the setting of TCP IP network parameters for the purpose of accessing the webpage and the Modbus TCP IP server Fig 56 Ethernet TCP IP sub page 2
38. entication as in section 3 2 When the correct password is authenticated the Change Device Password sub page will appear as shown in Fig 61 Fig 61 Change Device Password sub page WA CHANGE PASSWORD New Password Re enter TOUCH BUTTON FUNCTIONS to abort the saving operation and return to the System Settings page touch the BACK F1 button otherwise touch the SET F4 button to input the password O2IW z lt CD r D hie O KS D mp Q S Oo gt ep Ee 36 2 W suojeJadO 1319 2 Oo CD oo oP oF o m o DB m In the input mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white TOUCH BUTTON FUNCTIONS to increase the number touch the UP F2 button to decrease the number touch the DOWN F3 button to select the next field to change touch the NEXT F1 button and repeat the above 2 steps when all the fields are filled touch the ENTER F4 button and the SAVE F1 button will appear touch the SAVE F1 button and if the New Password does not match with the Re entered password an error message will appear and the above process has to be repeated unless aborted by touching the BACK F1 button If the password is correct it will be saved and the display will return to the System Settings page 3 8 3 4 FACTORY SETTINGS The Factory Settings sub page displays a
39. ergy parameter pages as shown in Fig 48 Fig 48 ENERGY sub menu 5 B ENERGY e eee ee TT T T T T T T T III T Reactive Energy Apparent Energy Total Energy Reset Energy Registers DOWN TOUCH BUTTON FUNCTIONS to select the parameter page of interest touch either the UP F2 or DOWN F3 button until the parameter item is highlighted within a dashed rectangular box and a RED dot to its left To confirm this selection touch the ENTER F4 button to return to the MAIN MENU touch the BACK F1 button 3 7 1 ACTIVE ENERGY The Active Energy page shows the nett active energy for each phase as well as the total nett active energy as shown in Fig 49 Fig 49 Active Energy page ET E 3 672 3 kwn 4979 5 kwh 4634 8 kwh al 13 287 2 kwh The displayed values may be incomplete due to the limited display width Use the lt and gt buttons to view the complete values TOUCH BUTTON FUNCTIONS to view the digits on the right of the displayed numbers touch the lt F1 button to view the digits on the left of the displayed numbers touch the gt F2 button to jump to the Reactive Energy page touch the Q F4 button otherwise touch the BACK F1 button to return to the ENERGY sub menu 3 7 2 REACTIVE ENERGY The Reactive Energy page shows the nett reactive energy for each phase as well as the total nett reactive energy as shown in Fig 50 Fig 50 Reactive
40. es of problems and possible solutions may endanger the user Table 4 eee guide LCD E not Tani No power ot the meter Verify meter sonal power control power supply to the connection to the meter meter including fuses Meter displaying unexpected Incorrect setting value phase order and polarity Verify the meter settings as per section section 2 3 Verify connections as per section 2 2 esp the polarity and phase order Verify connections as per section 2 2 esp the polarity Verify the network terminator is installed properly Verify the meter settings as per section 3 8 2 Verify the network settings as per section 2 4 Improper connection Meter unable to communicate with remote terminal Improper termination Improper termination Incorrect setting Incorrect setting APPENDIX A SPECIFICATIONS Table A 1 below shows the list of measurement parameters and their associated limits and resolution It also shows the display communication environmental and mechanical attributes of the meter including standards compliance Table A 1 Specification list No Parameter Max value Min value Resolution Accuracy 1 Voltage 1 1 Direct line L1 2 L2 3 amp L3 1 480 V 10 V 0 1 V voltage 1 2 Directphase L1 N L2 N amp L3 N 300 V 10 V 0 1 V 0 2 of full voltage scale 1 3 Indirect phase L1 N L2 N amp L3 N 50 kV voltage through VT 1 4 Pe
41. ithout neutral 3C Ts with 3VTs connection L1 L2 L3 90 415V AC AUX 100 300V DC Modbus RTU 2 e Fig 7 3 phase star plus neutral 3CTs with direct voltage input connection L1 L2 L3 Ln 90 415V AC AUX 100 300V DC ij s2 S1 2 Ethernet s2 s1 13 s2 S1 In s2 RS 485 5 Modbus RTU Fig 9 3 phase delta without neutral 3C Ts with direct voltage input connection L1 L2 L3 L 90 415V AC AUX 100 300V DC RS 485 j Modbus RTU NI ep 21 a T Oo 5 O2IW 7 ep mr pai a Oo E Upon completing this step please insert the detachable terminal block into the voltage input connector housing The terminal block must be inserted N securely into the connector housing on the meter to prevent improper operation d connect the metering current input to the current input terminal block as shown in Fig 10 The recommended wire size is AWG12 18 Please make sure the power to the current metering input is totally shunted Under no circumstances can the CT connection be left open circuit Use a CT shorting block if necessary Fig 10 3 phase and neutral CT connections f remove the detachable terminal block from the meter control power supply connection and connect the control power supply to the terminal block as shown in Fig 11 The recommended wire size is AWG16 22 Please make sure the power to the meter control is to
42. nd time as shown in Fig 60 Fig 60 Date amp Time sub page E DATE amp TIME Date 2012 04 12 Time 121 145 TOUCH BUTTON FUNCTIONS to input new settings touch the SET F4 button otherwise touch the BACK F1 button to return to the System Settings page In the input mode the UP F2 and DOWN F3 buttons will become active and the background colour of the active field will be changed to white TOUCH BUTTON FUNCTIONS to increase the number touch the UP F2 button to decrease the number touch the DOWN F3 button to select the next field to change touch the NEXT F4 button and repeat the above 2 Steps to save the settings and or return to the Date amp Time sub page touch the BACK F1 button The date format is year month day The time is hour minute in 24 hour format The year is settable from 2000 to 2050 and the settable day of the month depends on the selected month and the applicable leap year Before the saving of settings the user will be prompted for comfirmation TOUCH BUTTON FUNCTIONS to abort saving the settings touch the NO F3 button to return to the Date amp Time sub page otherwise touch the YES F2 button to save the settings and the user will be prompted for password authentication as in section 3 2 3 8 3 3 CHANGE DEVICE PASSWORD To enter the Change Device Password sub page the user will be prompted for password auth
43. nding webpage suoljeJadg Jajan Clicking on the Parameter Setting link will reload this webpage CT primary current power demand interval power demand sub interval blocks mee How Pt ead thermal current demand interval Ratan Bw Paswan WT Primary Voltages Vj 16 Bi ta TO 6010 thermal current demand sub ES TTT mary Currant A oD Se 30400 interval blocks ET secondary Garena Dad Power Initeruolj arj 0 60 ta IMO ja muda of i Goad Power interes na J Zo 153 liki pahid above 19 ivei soo find Current Intars zi DO ba 1000 iA Pape CP Od Mik FO Digital Power Meter DPM 6 amp 0 Meter IP dress Ketwerk scitieg and configuration Er Curren interval Bibika J slauga ani Currant Empr and Damar Pacameber Seting r w 2614 15 FSF mh H1 210 150 biwi perked above 19 end pecs SW suojeJadO 1319 Li w The input parameter is checked according to the following restrictions the VT primary voltage is between 60V and 50 000V the VT secondary voltage is between 60V and 300V AND it is lower than the VT primary voltage the CT primary current is between 5A and 50 000A the interval for both thermal current demand and power demand is between 60 and 1 800 in multiples of 60 the demand interval for both power and thermal current demands in secs must be whole number multiples of their respective sub interval blocks and the sub interval period must be longer than 15 Secs
44. nfirm this selection touch the ENTER F4 button to return to the MAIN MENU touch the BACK F1 button 3 3 1 PHASE VOLTAGE The Phase Voltage page shows the true RMS voltage of each phase as shown in Fig 19 below Fig 19 Phase Voltage page PHASE VOLTAGE 3 3 2 LINE VOLTAGE The Line Voltage page shows the true RMS voltage between any 2 phases as shown in Fig 20 Fig 20 Line Voltage page LINE VOLTAGE BI 4305 v 4313 V Bm 1537 v WAVE TOUCH BUTTON FUNCTIONS to jump to the Peak Voltage page touch the PEAK F2 button to jump to the Line Voltage page touch the LINE F3 button otherwise touch the BACK F1 button to return to the VOLTAGE sub menu TOUCH BUTTON FUNCTIONS to jump to the Peak Voltage page touch the PEAK F2 button to jump to the Phase Voltage page touch the PHASE F3 button to jump to the Voltage Waveform page touch the WAVE F4 button SW suoyeJadO Jalan S O2IW suojeJadO 139 o gt O gt N Co o gt Se o o IN otherwise touch the BACK F1 button to return to the VOLTAGE sub menu to jump to the Line Voltage page touch the LINE F3 button to reset the recorded maximum voltage values to zero touch the RESET F4 button 333 otherwise touch the BACK F1 button to eee return to the VOLTAGE sub menu PEAK VOLTAGE The Peak Voltage page shows the recorded maximum true RMS voltage of each
45. nternet Protocol Version 4 TCP IPv4 Properties window will appear as shown in Fig 14 Irtamei Pretece Vereen TCP Properties at SW Fou tar Get IP jap bra adage ukom betah I pour cater Ap bi Fri dapat Dahe mit yiu ved deh pour sete dirare E itar e Pe miarat D jeta Dirien an PP scones stems boahy 8 p he following P eii Paih HI ol H i Tairi magh LTE eleu garters dp 21 a T Oo 5 G p ha Meong DHE daerah etered Ord server Seats Die irot Fig 14 Internet Protocol Version 4 TCP IPv4 Properties window f check on the Use the following IP address button and set the IP address to 192 168 28 1 and the subnet mask to 255 255 255 0 as shown above NOTE The last digit of the IP address may be varied from 1 up to 255 But care must be taken to use only a vacant IP address g click on the OK button to exit Repeat pressing the OK button in the Local Area Connection Properties window O21IW CD r D p J O O D mp Q F Oo gt N 3 METER OPERATIONS The power meter front panel user interface comes with a large colour LCD display and 4 touch buttons labelled F1 F2 F3 and F4 as shown in Fig 15 To touch the button simply place a finger on the square below the labels corresponding to the menu item at the bottom of the display 3 1 OVERVIEW PAGE amp MAIN MENU Upon power up the power meter will display an OVERVIEW page listing a summary of basic
46. ort to ensure proper connection is made SW 5j dp B a Oo gt 2 3 METER SETUP Before commencing operation the meter has to be set up To do this the meter must be powered up by the meter control power supply Under section 3 8 the following parameters should be reviewed against the default value and modified if necessary CT ratio and VT ratio see section 3 8 1 IP address and subnet mask see section 3 8 2 1 RS 485 serial data format and baud rate see section 3 8 2 2 Modbus RTU device address see section 3 8 2 2 Modbus remote read enable see section 3 8 2 2 Date and time see section 3 8 3 2 Device password see section 3 8 3 3 O2IW 7 ep mr pai a Oo To reset the energy register values please see section 3 7 5 The following parameters should also be reviewed against the default value and modified if necessary demand interval and sub interval block for thermal current demand see section 3 4 6 demand interval and sub interval block for power demand see section 3 6 5 The following registers should be reviewed and reset if necessary peak phase voltage see section 3 3 3 peak phase current see section 3 4 2 maximum thermal current demand see section 3 4 7 maximum power demand see section 3 6 6 2 4 TCP IP CONNECTION SETUP The meter runs on IPv4 and its default IP settings is as follows IP address 192 168 28 28 Subnet mask 255
47. phase since the last reset as shown in Fig 21 3 3 4 VOLTAGE WAVEFORM The Voltage Waveform page shows the phase voltage waveform of all phases as shown in Fig 22 Fig 21 Peak Voltage page PEAK PHASE VOLTAGE Fig 22 Voltage Waveform page PHASE VOLTAGE TOUCH BUTTON FUNCTIONS to jump to the Phase Voltage page touch the PHASE F2 button The RED YELLOW and BLUE traces show the voltage waveform of phases L1 L2 and L3 respectively otherwise touch the BACK F4 button to return to the VOLTAGE sub menu The three display zoom levels correspond to a maximum range of approximately 110V 220V and 440V rms at the metering voltage input 3 3 5 The time capture span is fixed at approximately VOLTAGE HARMONICS 65 msec The Voltage Harmonics page shows the voltage harmonics spectrum and the voltage NOTE Total Harmonics Distortion THD of each phase Upon entering this parameter page the voltage harmonics spectrum will be displayed as shown in Fig 23 The displayed waveform is solely for visual inspection and not for measurement purposes The waveform is the captured voltage at the metering voltage input not necessarily the actual phase voltage especially when voltage transformers are used Fig 23 Voltage Harmonics page VOLTAGE HARMONICS TOUCH BUTTON FUNCTIONS to change the trigger source among the 3 phases touch the TRIG F1 button to zoom out the voltage display scale tou
48. r 0x06 100 Prprmayvotage TN Tai T02 703 Toa 108 Powerdemandsubinteval T 106 107 Eurent demand sub mena i 108 109 Reserved as 0000 for each register 110 111 112 113 The Minutes Hours and Day data is returned in BCD format For PF and THD guantities FFFF will be returned for invalid data 60 50000 60 1800 60 1800 0 59 decimal 0 23 decimal 1 31 decimal SW D Ke Ke D 2 xXx SW x pu ddy O APPENDIX C NUMERICAL METHODS C 1 DEMAND CALCULATION Demand parameters are used to show average values over a demand interval This power meter calculates the demand quantity by using the sliding block method In this method the demand interval is divided into n sub intervals For each sub interval s the quantity average qs is taken Finally the demand quantity is the average of the n consecutive sub interval quantity average over the demand interval i e 2 qs n The demand quantity is therefore updated at the expiry of each sub interval In the example shown in the Fig below for 3 sub intervals per demand interval sub interval average current is1 to is5 are taken over sub intervals 1 to 5 At the end of sub interval 3 the demand current id1 is calculated from the average of the last 3 sub interval average current i e id1 is1 is2 is3 3 This process will repeat again at the end of sub interval 4 where id2 is2 is3
49. r factor is derived from the fundamental component of the phase voltage current and fundamental active power Please see section C 4 in Appendix C for more details Fig 38 Displacement PF page A DISPLACEMENT PF 0 986 Cap 0 999 ina 0 979 Cap BACK PF ALL The right most column of the display indicates the capacitive or inductive nature of the power factor Ti SuojeJad 139 E Si O21IW CD r D O O D Q F Oo gt N ee CSE TOUCH BUTTON FUNCTIONS to jump to the Power Factor page touch the PF F3 button to jump to the PF amp FREQUENCY page touch the ALL F4 button otherwise touch the BACK F1 button to return to the PF amp FREQUENCY sub menu 3 5 3 PF amp FREQUENCY The PF amp Frequency page shows the summary of the overall total power factor as well as the power frequency as shown in Fig 39 Fig 39 PF amp FREQUENCY page d PF amp FREQUENCY BI 0800 cap BI 5000 The right most column of the total power factor display indicates the capacitive or inductive nature of the power factor TOUCH BUTTON FUNCTIONS to jump to the Displacement PF page touch the DPF F2 button to jump to the Power Factor page touch the PF F3 button otherwise touch the BACK F1 button to return to the PF amp FREQUENCY sub menu 3 6 POWER SUB MENU The POWER sub menu allows the selection of power parameter pages as shown in
50. s can however be changed separately when the NEXT F4 button is touched The user will be prompted to confirm the saving of settings TOUCH BUTTON FUNCTIONS to abort saving the settings and return to the Demand Current page touch the NO F3 button otherwise touch the YES F2 button to save the settings and the user will be prompted for password authentication as per section 3 2 3 4 7 MAX DEMAND CURRENT In the Max Demand Current page the recorded maximum demand current for each phase is displayed as shown in Fig 35 The neutral maximum demand current will NOT be displayed Fig 35 Max Demand Current page B MAX DEMAND CURRENT EE 83 2 A 83 ey 99 9 A 100 PE 104 7 ws TOUCH BUTTON FUNCTIONS touch the BACK F1 button to return to the CURRENT sub menu to jump to the Demand Current page touch the DMD F3 button to reset the recorded maximum demand current values to zero touch the CLR F2 button O2IW D D hie KS D mp kab En Ke ep EAE SW CD pap D o J O O CD Q F Oo gt N In clearing the recorded maximum values the user will be prompted with a Clear demand log confirmation TOUCH BUTTON FUNCTIONS to confirm clearing the recorded values touch the YES F3 button otherwise touch the NO F2 button In any case the meter will return to the Demand Current page 3 5 PF amp FREQUENCY
51. tally removed Fig 11 Control power connections Upon completing this step please insert the detachable terminal block into the meter control power supply connector housing The terminal block must be inserted N securely into the connector housing on the meter to prevent improper operation An isolation transformer or EMC filter may need to be installed before feeding into the power meter in case of power guality problems in the control power supply g if Modbus RTU is used remove the detachable terminal block from the RS 485 port and connect the Modbus communication cable to the terminal block as shown in Fig 12 The recommended wire size is AWG22 or thicker shielded twisted pair Please make sure the polarity is correctly aligned Fig 12 Modbus RTU connections Up to 32 devices can be connected in a daisy chain fashion and the total cable length should not be more than 1000m Avoid running the cable near sources of electrical noise The N network cable shield should be grounded at only ONE end Upon completing this step please insert the detachable terminal block into the RS 485 port connector housing The terminal block must be inserted N securely into the connector housing on the meter to prevent improper operation h if Modbus TCP IP or the webserver is used simply connect the LAN cable s RJ45 connector to the RJ45 port shown in Fig 3 Please make sure the connector snaps into the p
52. ve Energy 3 7 2 Reactive Energy 3 7 3 Apparent Energy 3 7 4 Total Energy 3 7 5 Reset Energy Counters SETTING sub menu 3 8 1 CT amp VT Ratios 3 8 2 Communication Settings 3 8 2 1 Ethernet TCP IP 3 8 2 2 Modbus 3 8 3 System Settings 3 8 3 1 Version 3 8 3 2 Date 8 Time 3 8 3 3 Change Device Password 3 8 3 4 Factory Settings 3 8 4 For Factory Use Only 38 39 39 40 41 41 42 42 43 44 45 47 47 48 49 50 50 4 WEBPAGE OPERATIONS 4 1 Voltage and Current page 4 2 Energy and Power page 4 3 Parameter Setting page 4 3 1 Webpage Password 5 MODBUS OPERATIONS 6 TROUBLESHOOTING GUIDE Appendix A Specifications Appendix B Modbus Table Appendix C Numerical Methods C 1 Demand Calculation C 2 Total Harmonic Distortion Calculation C 3 Seguence Components Calculation C 4 Power Factor Calculation 51 51 53 55 56 57 58 59 63 66 66 67 67 68 1 INTRODUCTION Thank you for purchasing the DPM680 Digital Power Meter This multifunction power meter features a user friendly colour graphical and touch button interface It s primary function is for measuring the following parameters True and peak RMS phase voltage L N True RMS line voltage L L True and peak RMS phase and neutral current Active reactive and apparent power Active reactive and apparent energy Total and displacement power factor Frequency Voltage and current total harmonic distortion THD
53. wer meter please check that the environment meets the following conditions Operating temperature 20 C to 70 C Humidity 5 to 95 non condensing Dust free environment away from electrical noise and radiation a provide a cut out hole on the switchgear panel according to DIN43700 ANSI C39 1 as shown in Fig 4 below Fig 4 Cut out hole 101 6t0 5mm 91 0 5mm 91 0 5mm O2IW uole e Su M N b insert the meter through the hole and slide in the retainer clip along the slots on both sides of the power meter until the device is tightly secured on the switchgear panel The direction and orientation of the retainer clips is shown in Fig 3 The retainer clip can be removed by lifting the tab lightly at the handle end c remove the detachable terminal block from the voltage input connection and connect the metering voltage inputs to the detachable terminal block as shown in Fig 5 according to the wiring schemes shown in Figs 6 to 9 below The recommended wire size is AWG16 22 Fig 5 Metering voltage input detachable terminal block connections N Please make sure the power to the voltage metering input is totally removed Fig 6 3 phase star plus neutral 4C Ts with direct voltage input connection L1 L2 L3 Ln 90 415V AC AUX 100 300 V DC S1 hi s2 S1 2 Ethernet s2 S1 3 s2 S1 In s2 5 RS 4857 Modbus RTU L2 L3 Ln Fig 8 3 phase delta w

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