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User Manual

1. 1 ELECTRICAL MULTIFUNCTION ANALYZER 1 T ALL Lp a nad icut m 1 aye M ns dir Os User Manual IM 170 U v 3 0 Instrument version EMA11 by 4 10 elettronica srl 26900 Lodi ITALY via S Fereolo 9 Tel 4 39 0371 30207 30761 Fax 39 0371 32819 E mail contrel contrel it http www contrel it http www contrel net EMA11 USER MANUAL Information in this document is subject to change without notice and does not represent a commitment on the part of Contrel Elettronica Srl This documentation is consigned to the customer to enable the correct and safe operation of the instrument any other use of documentation is strictly prohibited The information contained herein is the property of Contrel Elettronica Srl and by law no part of it may be reproduced transcribed stored in any retrieval system or translated into any language by means even for internal purposes by the customer without the express written permission of Contrel Elettronica Srl In addition no part of this manual may be transmitted in any form by any means including photocopying and recording for any purposes without the express written permission of Contrel Elettronica Srl In case of Copyright violation the customer is directly responsible TERMS OF WARRANTY The warranty is valid for the period of twelve months after material receipt Th
2. L2 o L3 e e N o 3 D v v L1 mam e L2 lt sim 52 L3 2 e 4 wires insertion 3 current transformers L16 L2o L3 o LOAD S1 mm S2 P1 P2 Single fase insertion 1 current transformer Ez L1 L2 e e SImm 52 5 LOAD L3 P1 P2 N 4 wires insertion 3 current transformers and 2 voltage transformers 19 EMA11 USER MANUAL 7 PLUG IN MODULE INSERTION See the following picture to insert the plug in module sH Its possible to see the two slot shows in the picture only when the rear door is removed To remove the rear door it s necessary to act in the zone indicated of the arrow on the retention lever The first slot is used to insert the option board of the digital input digital output analog output and serial port a 6DI 6 digital inputs b 201 2 2 digital inputs 2 digital outputs 4DO 4 digital outputs d 2 2 analog outputs 4 4 analog outputs f 2 1 serial port The second slot is used only for the option memory MEM Ram 1Mbyte Warning if y
3. REAL TIME VISUALIZATION PAGES Operator may also exit the setup by pressing simultaneously the RIGHT amp LEFT button one or more time depending of the branch in which you are 50 EMA11 USER MANUAL 12 VARIABLES measure codes To program the variables in setup for digital outputs alarm and pulse analog outputs its necessary to use these codes CODE VARIABLE 128 THREE PHASE SYSTEM VOLTAGE rms 129 PHASE L1 VOLTAGE rms 130 PHASE L2 VOLTAGE rms 131 PHASE L3 VOLTAGE rms 132 PHASE L1 L2 VOLTAGE rms 133 PHASE L2 L3 VOLTAGE rms 134 PHASE L3 L1 VOLTAGE rms 136 THREE PHASE SYSTEM CURRENT rms 137 LINE L1 CURRENT rms 138 LINE L2 CURRENT rms 139 LINE L3 CURRENT rms 140 THD IL Total Harmonic Distortion 96 141 THD IL2 Total Harmonic Distortion 96 142 THD IL3 Total Harmonic Distortion 96 144 THREE PHASE SYSTEM POWER FACTOR 145 PHASE L1 POWER FACTOR 146 PHASE L2 POWER FACTOR 147 PHASE L3 POWER FACTOR 148 THREE PHASE SYSTEM COS 149 PHASE L1 COS 150 PHASE L2 COS 151 PHASE L3 COS 152 THREE PHASE SYSTEM APPARENT POWER 153 PHASE L1 APPARENT POWER 154 PHASE L2 APPARENT POWER 155 PHASE L3 APPARENT POWER 160 THREE PHASE SYSTEM ACTIVE POWER 161 PHASE L1 ACTIVE POWER 162 PHASE L2 ACTIVE POWER 163 PHASE L3 ACTIVE POWER 168 THREE PHASE SYSTEM REACTIVE POWER 51 EMA11 USER MANUAL 169 170 171 176 177 178 179 180 182 183 184 185 186 188
4. 0 013500 Mode 4 wires 3 wires Aron Warnings Yes No T Average 1 99 B Light 0 360 Energies Normal Heavy Mode Set Clock Freq 5 500 Day Ligh ACCESS 000000 999999 SERIAL COMM ADDRESS 01 255 se Modbus o 01 128 se ASCII COM 1200 19200 COM2 Lem 1200 19200 PARITY none even odd PARITY none even odd 5232 5485 RS232 RS485 DATA BIT 7 8 DATA BIT 7 8 TIMEBAND nee Id 01 10 BAND 1 StartHour seen eee StartMin P1 P2 P3 P4 Times StartHour StartMin Holidays Index 1 40 P1 P2 P3 P4 Month 1 12 Day 1 31 STORAGE MIN MAX ur Off AVERAGE POWER Enable On O Meas HARMONICS Enable On Off Rate min 1 9999 i 179999 DIGITAL OUTPUT Out Index 1 6 Type AlwaysOff EnergyPulse Min Thresold MaxThresold Band AlwaysOn Measure Code 128 257 Value Time 50 500 Hysteresis 0 99 1nf Value Sup Value DIGITAL INPUT Type Not used Clock Sync Period ANALOG OUTPUT Out Index 1 4 Type 0 20 4 20 Measure Code 128 257 PRESET KWh PASSWORD Value 0000 9999 RESET RESET ALL MEASURES All Yes No Reset Setup Energies Yes No Reset Storage TimeBands Yes No Reset Globa Min
5. MVA GVA apparent power L2 S2 VA KVA MVA GVA apparent power L3 S3 Variable reading phase power factor P F three phase system power factor PF P F power factor L1 PF1 P F power factor L2 PF2 P F power factor L3 PF3 Variable reading phase coso coso three phase system coso 7 5 coso coso L1 coso 1 coso L2 cose 2 coso L3 cose Variable reading frequency and temperature Hz Frequency L1 1 C Temperature T 35 EMA11 USER MANUAL Variable reading consumption of active and reactive energy Normal KWh positive active energy counter KWh KWh negative active energy counter kWh KVArh Inductive reactive energy counter kVArh KVArh capacitive reactive energy counter kVarh Variable reading consumption of active and reactive energy Heavy MWh positive active energy counter MWh MWh negative active energy counter MWh MVArh Inductive reactive energy counter MVArh capacitive reactive energy counter MVarh Variable reading average powers In the Total Energies page pressing LEFT and RIGHT keys it s possible to see the average powers page e W kW MW GW average active power P e VAr kVAr MVAr GVAr average reactive power Q Variable reading time band energy counters 7 page to display acti
6. e Available static memory expressed in Kb which is available to store data for this section Used dynamic memory expressed in Kb which is used by data already stored record stored Free dynamic memory expressed which is free to store data Used amp Free memory are working together blocks of memory are transferred from Free memory to Used memory in order to store the values on the RAM of the instrument Initially the available memory will be totally free but at own exhaustion it will be totally used These information are very important to avoid to delete stored data to choose how to storage the data on the basis of available memory Digital I O The page shows the ON OFF status of the digital inputs and digital outputs The symbol indicates that none output input is present on the hardware these are input output optionals 38 EMA11 USER MANUAL Warnings To see warnings are available 3 pages The first page shows the situation of insertion of instrument concerning the connection of current transformer in the current input and the phase sequence for the voltage input If at least one of current transformer is inverted the display shows Warning TA otherwise TA OK If the sequence of phases at voltage inputs is inverted will appear WARNING otherwise Phases sequence The message No Info Please Wait appear during the elaboration to establish the p
7. in order to cut the generated magnetic fields 23 EMA11 USER MANUAL 8 3 INPUT OUTPUT OPTIONS PLUG IN MODULE Its possible to use this following plug in module option a 6 digital inputs 6DI 2digital inputs 2 digital outputs 2DI 2DO 4 statics digital outputs 4DO 4 relay digital outputs 400 2analog outputs 2AO 4analog outputs 4AO p O O h Warning The hardware modification of instrument will change the Setup in the default configuration The next picture shows the option board position and the terminal board numeration TH 221 1211109 8 7 6 5 4 2 N 8 3 1 6 DIGITAL INPUTS OPTION 6DI PLUG IN After the installation of this optional board the instrument will be equipped with 8 digital inputs 2 standards 6 optionals and 2 digital outputs This module have an output 0 12Vcc usable like power supply for digital inputs The following table shows the pin out of this plug in module INPUT 3 INPUTS 3 e 4 INPUT po INPUTS 5 ___1 55 6 _ l2Vcc 0 INPUTG t __ 0 0 8 3 2 2 DIGITAL INPUTS 2 DIGITAL OUTPUTS OPTION 2DI 2DO PLUG IN After the installation of this optional boa
8. FACTOR 5 THREE PHASE SYSTEM COS APPARENT POWER THREE PHASE SYSTEM APPARENT POWER ACTIVE POWER THREE PHASE SYSTEM ACTIVE POWER REACTIVE POWER THREE PHASE SYSTEM REACTIVE POWER AVERAGE ACTIVE POWER AVERAGE REACTIVE POWER THREE PHASE SYSTEM ACTIVE ENERGY THREE PHASE SYSTEM TRANSFERRED ACTIVE ENERGY THREE PHASE SYSTEM INDUCTIVE REACTIVE ENERGY THREE PHASE SYSTEM CAPACITIVE REACTIVE ENERGY Total counters and time bands are available VL1 N 7 Vi2 N 7 12 7 lia Fu Hz TCC 1 42 7 243 2 V lLtaverli2averlisave lave In PF PFis PF COS L1 COS L2 COS L3 5 Su 912 7 913 VA S VA P Pi 7 W P W Q Qi VAr VAr Pave W Qave Wh Wh VArh VArh TOTAL HARMONIC DISTORTION THD CURRENT AND VOLTAGE HARMONIC ANALYZES Option Analyzes up to the 31 harmonic of both voltage and current for each phase I 0 VL1 N 2 lit lio lia 76 10 EMA11 USER MANUAL 2 6 MEASURING amp CALCULATION FORMULAS Phase Voltage RMS Line Current RMS Active Power Reactive Power Appearent Power Coso Power Factor Active Energy 11 EMA11 USER MANUAL Reactive Energy Line Voltage 3 Phase Line Voltage 3 Phase System Current 3 Phase Active Power 3 Phase Reactive Power 3 PhaseAppea rent Active Energy Reactive Energy Harmonic
9. PHASE L1 REACTIVE POWER PHASE L2 REACTIVE POWER PHASE L3 REACTIVE POWER THREE PHASE SYSTEM ACTIVE ENERGY acquired THREE PHASE SYSTEM REACTIVE ENERGY inductive THREE PHASE SYSTEM ACTIVE ENERGY transferred THREE PHASE SYSTEM REACTIVE ENERGY capacitive FREQUENCY THD VL1 Total Harmonic Distortion THD VL2 Total Harmonic Distortion THD VL3 Total Harmonic Distortion AVERAGE THREE PHASE SYSTEM ACTIVE POWER AVERAGE THREE PHASE SYSTEM CURRENT INTERNAL TEMPERATURE 52 EMA11 USER MANUAL 13 TROUBLES AND SOLUTION If you have a problem setting up or using your instrument you may be able to solve it yourself Before calling your retailer or nearest distributor you should try the suggested actions that are appropriate to your problem Problem Possible cause Suggested The instrument doesn t turn on The power supply is Verify the connection and the disconnected or wrong presence of power supply The internal fuse is interrupted See the chap cap 6 1 to verify and or to change the internal fuse The display is completely dark Contrast badly adjusted Adjust contrast as described or clear on 9 1 The instrument doesn t Communication wires Verify the correct wiring communicate with the NRG Communication protocol Verify that the communication software or other Wiring system and protocol of the instrument communication software communication parameters coincides with the one use
10. cable size of 2 5mm 0 20 0 20 4 20mA 4 20 5000 121109687654 If long distances must be covered the wires connected to the EMA11 needs to be wired in a separate channel from the power supply cables if an intersection occurs between the power supply cable and the analog wires please remember to cross the intersection at 90 degrees in order to cut the generated magnetic fields 25 EMA11 USER MANUAL 11 gives a current signal range 4 20mA or 0 20 proportional at the misure of the parameter selected The output is bidirectional the current can be directly or inversely proportional to reference value programmed Bidirectional means reversal of reference value and not inversion of current Examples 20 mA S Apparent Power lt lt Min 2000VA Max 10000VA lt lt N lt p e P Active power P Min 1000W 0 Max 1000W lt lt e il P F Power Factor JIII 0 5 1 0 5 lt e N lt e Reactive power Q Min 2500VAr Max 7000VAr 8 3 6 A4 ANALOG OUTPUTS OPTION 4A0 PLUG IN The instrument with this option will manage 2 digital inputs 2 digital outputs and 4 analog outputs The pin out is showed in the following table d OUTPUT 3 2 OUTPUT 3 22 OUTPUT 2 2 OUTPUT 4 OUTPUT 4 Information of the connection and example
11. order for both current and voltage for each line DIGITAL OUTPUT sets the OUT INDEX number of digital output TYPE type of alarm always on max threshold min threshold external band energy pulse always off MEASURE CODE variable number to associate with the digital output see chapter 12 VALUE the value to set as threshold or pulse TIME delay time by enabling the digital output or duration of impulse HYSTERESIS INFVALUE e SUPVALUE lower value and higher value for alarm of external band DIGITAL INPUT sets the type of acquisition None Clock Synchronization or Periods ANALOG OUTPUT set the analog output number OUT INDEX TYPE disable 0 20mA and 4 20mA MEASURE CODE number code of variable to associate at analogic output see cap 12 MIN e MAX lower value and higher value of the variable to associate at voutput current PRESET allows to set the initial value of total energy counter PASSWORD allows to put a pin code to avoid that someone not authorized could modify the setup RESET allows to make a RESET MEASURES RESET SETUP RESET STORAGE and RESET GLOBAL EXIT SETUP allows the operator to exit from the main menu or setup page in order to reach the instantaneous value page Before exiting the page the instrument will question the operator if he might to save the STORAGE Setup in case one or more parameters has been modified All the above mentioned voices will be described on the following chapters
12. polling time is directly proportional to the instruments number connected on the same serial line 8 4 1 5485 CONNECTION NOT SHIELDED Rt Rt RS232 RS485 converter 11 11 Once 5485 network has been configured to communicate between the Host computer and the instrument s EMA a serial interface converter must be wired between PC and instrument s as mentioned on the above picture In serial line over 500 mt connect a line termination resistor Rt 100Q 1200 between the two twisted pair cables leading from the converter at the end of the network last connected instrument Its raccommended to use always twisted pair cable with minimum cross section of 0 36mm 22AWG and capacity less than 60 pF m i e BELDEN cable type EIA RS485 Ref 3105A 97 EMA11 USER MANUAL 8 4 2 RS485 CONNECTION SHIELDED Rt RS232 RS485 converter EMA 11 EMA 11 Although the segnal is given by the difference between A and B voltage a ground connection is needed to eliminate or to reduce the common mode noise induced into the bus To reduce the EMI interferences need to connect the shield directly to a ground at one end and with a parallel RC network at the other end R gt 1MQC 1uF The max lenght of the stubs is 20cm 8 4 3 RS232 CONNECTION EMA 11 If a RS232 commu
13. real time pages to repeat the same SELECT SELECT operation Other function allow to see average values minimum and maximum storage and harmonic components When it s possible to accede at these function two little arrows appear on the display ENTER KEY ENTER key if pressed for at least 3 seconds on any of the real time pages instantaneous value pages sets the current visualized page as MAIN PAGE In the SETUP menu the ENTER key allows to enter in the setting menu or submenu order to program and or set values and confirm the operation s ENTER DISPLAY CONTRAST It is possible to regulate the contrast of the display directly from the keyboard pressing simultaneously the key with the ENTER key the display will P UP ENTER change in lighter To change the display in darker it is necessary to press simultaneously the DOWN key with the ENTER key DOWN ENTER 4 Jv SELECT SELECT DOWN SYSTEM RESET To reset the unit directly from the keyboard without entering in the Setup menu where from there it is also possible to reset the unit through Reset Global on chapter 11 13 operator may press simultaneously the 4 arrow keys after 2 seconds the complete unit will be re setted 31 EMA11 USER MANUAL 10 REAL TIME VALUES The real time pages show all the possible performed measurement of the instrument during the evolution Al
14. use the rear door with the hole for the memory board of the slot number 2 10 Reintroduce all of connection and turn on the instrument Check in the relative page that the 7 2 Instrument recognized the board OPTION BOARD SLOT 1 DEFINITIVE POSITION ROTATION SENSE 30 OPTION BOARD INSERTION POSITON SLOT 2 DISCONNET PROCEDURE Only a qualified and authorized technical personnel can insert the plug in module Follow this procedure to operate in the maximum security Q HN Cut off the power supply of instrument and disconnet all input and all output Remove the seal from the rear door Open and remove the rear door Its necessary to proceed with a lot of accuracy whitout to touch other components because there are residual voltages Push slightly the two hooks situated on sides in the external direction using a screwdriver The module should be disconnected and inclined of 30 in the low direction Extract the plug in module Close the instrument with the rear door 24 EMA11 USER MANUAL 8 INPUT OUTPUT DEVICES 8 1 STANDARD DIGITAL INPUTS The 11 has 2 optoisolated inputs power supply from 12 to 24Vdc a 12 24 12 24 _ x JE L 14 For the digital input setup please consult the chapter 11 9 If long distances must be covered the wires connected to t
15. 0 kg app equipped with 2 digital outputs 2 digital inputs RS485 RS232 Memory 128Kbytes 144x144x66 mm 144 66 8 EMA11 USER MANUAL 2 2 MEASURING METHOD AND ACCURACY Measuring range 30 500Hz Measuring method 64 sampling per period for V1and A1 V2 and 2 V3 and Measuring interval 0 1 second Frequency measurement every 160 ms Instrument accuracy Voltage 0 5 96 Current 0 5 96 Power 1 96 Energy 1 96 Power Factor 1 96 Sampling frequency 45 Hz 2 280 or at 60 Hz 3 88kHz Zero self regulation Offset 0 1 second RTC REAL TIME CLOCK Accuracy 50 PPM 2 3 PROGRAMMABLE PARAMETERS SETUP SECTION Mode insertion type 4 wires 3 wires Aron VT and CT ratio Integration time of Av power Sampling frequency Address or logical number of equipment Date and time Time bands of power consumption in different periods Storage section Min max Harmonics Av power and Sampling values All parameters concerning the input output section serial port analog output digital input and output Preset energy counters 0 EMA11 USER MANUAL 2 4 MEASURED VARIABLES PHASE VOLTAGE Rms LINE CURRENT Rms FREQUENCY TEMPERATURE 2 5 CALCULATED VARIABLES LINE VOLTAGE Rms THREE PHASE SYSTEM VOLTAGE Rms THREE PHASE SYSTEM CURRENT Rms AVERAGE LINE CURRENT AVERAGE THREE PHASE SYSTEM CURRENT NEUTRAL CURRENT POWER FACTOR THREE PHASE SYSTEM POWER
16. 20mm 315mA 250V Fast es Schurter FSF Always disconnect the instrument from all power sources before opening it for maintenance an or repairs The instrument s capacitor may still be charged even after it has been disconnected from all power sources Maintenance and or repairs must only be carried out by qualified and authorized personnel If in any doubt about the instrument s safety take it out of service and implement the necessary procedures to prevent its inadvertent use Instrument operation is no longer safe A when the instrument shows clear signs of damage B when the instrument does not work C after long storage in extreme conditions D after serious damage during shipment 4 2 OPERATOR SAFETY Carefully read the following pages before installing and using the purchased instrument Maintenance and or repairs must only be carried out by qualified and authorized personnel To ensure proper and safe use of the instrument and its correct maintenance and or repairs authorized personnel must follow normal safety procedures at all times SYMBOLS N READ CAREFULLY THE CONTAINED INSTRUCTIONS 14 EMA11 USER MANUAL 4 3 MOUNTING The unit needs to be installed on front panel of mains control switchboards wiring and connections must be carried out following the EMC Electro Magnetic Compatibility procedures For the wiring connection are used appropriate extractible screw terminal boards On the terminal board o
17. 33 EMA11 USER MANUAL Variable reading of line voltage V KV rms voltage L1 V1 V KV rms voltage 12 V2 V KV rms voltage L3 V3 Variable reading of line current A KA rms current L1 l1 A KA rms current L2 l2 A KA rms current L3 l3 Variable reading average line current A KA rms average current L1 lav1 A KA rms average current L2 lav2 A KA rms average current L3 lav3 Note The average current is calculated in the average time set in the setup Variable reading average three phase system current A KA rms average three phase system current gt lav Note The average current is calculated in the average time set in the setup Variable reading phase active power W KW MW GW three phase system active power gt P W KW MW GW active power L1 P1 W KW MW GW active power L2 P2 W KW MW GW active power L3 P3 34 EMA11 USER MANUAL Variable reading phase reactive power e VAr KVAr MVAr GVAr three phase system reactive power e VAr KVAr MVAr GVAr reactive power L1 Q1 KVAr MVAr reactive power L2 Q2 e VAr KVAr MVAr GVAr reactive power L3 Q3 Variable reading phase apparent power VA KVA MVA GVA three phase system apparent power gt S VA KVA MVA GVA apparent power L1 S1 e VA KVA
18. 41 EMA11 USER MANUAL 11 3 GENERAL The general menu is subdivided in the following sub menu KCT current transformer ratio KVT voltage transformer ratio Mode type of connection Warnings T Average average time B Light display backlight on time Energies energy counter in KWh or in MWh Sync frequency sincronizzation Clock clock and calendar and ACCESS code for option function KCT allows to set the current transforming ratio if current transformer are used on a circuit in order to show the measured values in primary terms l e if current transformer of 200 5A is used it is necessary to set the KCT at 40 The KCT has 4 digits plus 2 decimal points and the range is 0 01 a 2000 00 KVT allows to set the voltage transforming ratio if voltage transformer are used on a circuit in order to show the measured values in primary terms l e if voltage transformer of 20000 100V is used it is necessary to set the KVT at 200 The KVT has 4 digits plus 2 decimal points and the range is 0 01 a 3500 00 Mode concerns the operation or measuring mode it is possible to select 4 wires 3 wires and Aron following connection mode as described on chapter 6 4 Warnings enables Yes or disables No the visualization each 15 second of the warnings page alternatively at default page if current transformer insertion is wrong or there is invertion the phase sequence The condition of battery low will appear independently o
19. CURRENT INPUTS Connect the instrument following up the wiring diagrams described on chapter 6 4 WARNING before connecting the current inputs to the terminals of the instrument be advised that the maximum allowable current input must be and not exceed 5 with screwable current input in order to avoid negligence operator must first shutdown the system and short circuit the secondary wiring of the current transformer if used and unscrew the current input terminals WARNING to prevent accidentally disconnection of the current input EMA11 is equipped 6 4 WIRING DIAGRAMS on Ie L2 6 12 SOOO L1 mam O Simm 52 us Pl P2 L3 3 wires insertion 2 current transformers L1 o L2c L3 o No S 1 52 Q L2 lt Pl P2 L3 e e 3 wires insertion 2 current transformers and 2 voltage transformers 18 EMA11 USER MANUAL LI o a u L3 o N H pud L1 mm L2 5 mmm S2 13 P2 N 4 wires insertion 3 current transformers and 3 voltage transformes LOAD Ll o
20. IN amp MAX values are stored Enable confirming the ENABLE voice the operator may enable ON or disable OFF the acquisition of MIN amp MAX values Measures parameters to store Select the variable to store in the minimums and maximums with the LEFT and RIGHT keys enable or disable this variable with UP and DOWN keys Rate min aquisition time This is the aquisition time of mimum and maximum values from 1 minute to 9999 minutes For example to store the minimum and the maximum value of programmed parameters each 15 minutes it s necessary to set 15 If the storing of minimum and maximum values is enabled the values shows in the relative page are updated at the same acquisition time set for the storing in memory Minimum and maximum values are not absolute any more Average Power Storing of average active and reactive power Its possible to enable or disable the storing to program the sampling time Rate min Rate min can be 15 30 45 60 minutes 46 EMA11 USER MANUAL Harmonics Up to the 31 harmonics are stored for each line both of voltage and current channels Enable the operator may anable or disable the storing of harmonic values The sampling time is fixed at 15 minutes but it s modifiable in general menu T Average If any of the above mentioned parameters has been enabled for storage by exiting the setup menu a brief message will appear asking the
21. MABLE PARAMETERS SETUP SECTION 2 4 MEASURED VARIABLES 2 5 CALCULATED VARIABLES 2 6 MEASURING 8 CALCULATION FORMULAS 3 INSTRUMENT DESCRIPTION 4 INSTALLATION 44 SAFETY 42 OPERATOR SAFETY 4 3 MOUNTING 5 INTERNAL BATTERY 5 1 REPLACEMENT INTERNAL BATTERY 6 CONNECTION 6 1 POWER SUPPLY 6 2 VOLTAGE INPUTS 6 3 CURRENT INPUTS 6 4 WIRING DIAGRAMS 7 PLUG IN MODULE INSERTION 7 1 INSERTION PROCEDURE 7 2 PROCEDURE 8 INPUT OUTPUT DEVICES 8 1 STANDARD DIGITAL INPUTS 8 2 STANDARD DIGITAL OUTPUTS 8 3 INPUT OUTPUT OPTIONS PLUG IN MODULE 8 3 1 6 DIGITAL INPUTS OPTION 6DI PLUG IN 8 3 2 2 DIGITAL INPUTS 2 DIGITAL OUTPUTS OPTION 2DI 2DO PLUGIN 02 INDICE MAIN INFORMATIONS INTRODUCTION DESCRIPTION CE CONFORMITY AND STANDARDS 28 N N O O O N N N N NM DBO MM gt gt gt O N N gt gt O N O a kh A A G O 24 24 EMA11 USER MANUAL 8 3 3 4 STATIC DIGITAL OUTPUTS OPTION 400 PLUG IN 8 3 4 4 RELAY DIGITAL OUTPUTS OPTION 4DO PLUG IN 8 3 5 2 ANALOG OUTPUTS OPTION 2 PLUG IN 8 3 6 4 ANALOG OUTPUTS OPTION PLUG IN 8 4 SERIAL OUTPUTS 8 4 1 RS485 CONNECTION NOT SHIELDED 8 4 2 RS485 CONNECTION SHIELDED 8 4 3 RS232 CONNECTION 8 4 4 MODEM CONNECTION 8 4 5 OPTION RS485 RS232 CON2 PLUG IN 9 USE 9 1 FUNCTION KEYS 10 REAL
22. Max Yes No EXIT SETUP Note Remember always to confirm the entering exiting or programming always with the ENTER key the last modification will be kept in the non volatile memory of the equipment until further reset of the system 40 EMA11 USER MANUAL 11 2 MAIN MENU SETUP The main menu or SETUP page is configured in the following way GENERAL includes the settings of KCT current ratio KTV voltage ratio MODE 4 wires 3 wires Aron WARNINGS T AVERAGE integration time for the calculation of the average active and reactive power B LIGHT Backlit on display timing ENERGIES energy counter in KWh o in MWh SYNC frequency synchronization CLOCK clock settings and ACCESS code to enable option function like harmonics and or time bands SERIAL COMM includes the settings of ADDRESS logical number node or address COM 1 serial port 1 integrated COMM 2 serial port 2 expansion board TIMEBANDS includes the settings of TIME DAY MONTH and TIME BAND for the power consumption in different periods HOLIDAYS includes the INDEX holiday day MONTH in which month the holiday is present and DAY the day of the month of the holiday This features calculates in the more economic band the power consumption of the yearly holidays STORAGE includes the settings of MIN MAX min max storing PM15MIN average of active and reactive power consumption HARMONICS harmonic storing up to the 31
23. TIME VALUES 10 1 VISUALIZATION TREE 10 2 MEASURES VISUALIZATION 10 3 STATUS AND INFORMATION PAGES 11 SETUP 11 1 SETUP PAGES 11 2 MAIN MENU SETUP 11 3 GENERAL 11 4 SERIAL COMM 11 5 _ TIMEBANDS 11 6 HOLIDAYS 11 7 STORAGE 11 8 DIGITAL OUTPUT 11 9 DIGITAL INPUT 11 10 ANALOG OUTPUT OPTION 11 11 PRESET 11 12 PASSWORD 11 13 RESET 11 14 EXIT SETUP 12 VARIABLES measure codes 13 TROUBLES AND SOLUTION 4 25 25 25 26 27 27 28 28 29 30 31 31 32 32 33 37 40 40 41 42 43 44 45 46 47 48 49 50 50 50 50 51 53 EMA11 USER MANUAL 14 15 EMA SERIAL COMMUNICATION PROTOCOL Notes 5 54 55 EMA11 USER MANUAL 1 MAIN INFORMATIONS 1 1 INTRODUCTION 11 was engineered and tested in compliance with IEC 348 class 1 standards for operating voltages up to 650 Vac rms considering the VDE 0110 group C isolation standards for operating voltages up to 500 Vac rms The present manual contains all of the information warnings that must be followed up by the operator to ensure a right use of the equipment and to maintain the safe operating conditions 1 2 DESCRIPTION The 11 15 an instrument which has been designed to monitor store and analyze all electrical variable in a distribution line The measuring range more than 80 parameters allows to get all the network informations All the relevant data are displayed and if desired stored on interna
24. analyzes Cooley Tukey algorithm N 1 Hk gt h n cos n 0 for 0 lt k lt N 1 LV pas V3o 3 Pit paipa 3 W3o W 73 036 97 7 9797 O73 Art Aga Wh3 Wh3gdt 0 CO 0 2 mk 2 mnk 1 h n sin M J gt n 0 N 64 12 EMA11 USER MANUAL 3 INSTRUMENT DESCRIPTION The front panel of the 11 is described on the following section amp A v v7 2 1 DISPLAY Backlighting grafic LCD 70 70 128x128 dot dot pitch 0 35mm x 0 35 dot size 0 32mmx0 32mm high viewing direction 60 positive and negative visualization at low reflection 2 KEYBOARD In the Acquisition Mode the up and down arrows allows to skip through the measuring page of the instrument while in the Setup Mode all the buttons including Enter key allows to program the instrument 13 EMA11 USER MANUAL 4 INSTALLATION 4 1 SAFETY On receipt of the instrument and prior to installation make sure it is intact and has not been damaged during shipment installing make sure the operating voltage and mains voltage are compatible The instrument power supply must not be earthed The instrument is not equipped with a fuse on the power supply A 1 A mAT HBC fuse must therefore be fitted in the power supply circuit to the instrument The instrument is equipped with a fuse on the power supply type 5x
25. counter is cleared if it s between 00 and 29 while if it s between 30 and 589 it s cleared and the minutes counter go on the next minute Example 17 31 23 hh mm ss will be 17 31 00 08 45 55 hh mm ss will be 08 46 00 PERIOD to change the bands for the energy counter with time bands The following table shows the time band selected depending of the status of digital input DIGITAL INPUT 2 DIGITALE INPUT 1 BAND SELECTED OPEN OPEN P1 OPEN CLOSED CLOSED OPEN P3 CLOSED CLOSED CLOSED there is a voltage from 12Vcc and 24Vcc OPEN the voltage is OVcc The change of band happens when the instrument recognizes a change of status on one of digital input at least At the moment of the digital inputs enabling like Periods and at the EMA s turn on with the enabling already set the energy counters increment continue on the last band enabled independently of the digital inputs status until the change of the minute of the internal clock or the change of the status of one of digital input 48 EMA11 USER MANUAL 11 10 ANALOG OUTPUT OPTION Selecting the analog output voice the following programming page appears e Out Index expresses the number of output to select or program which are present on the hardware of the instrument e allows to select the value of current output disabled 0 20mA 4 20mA Through the up amp down key it may be possible to select the type of the output current by pressing
26. d in the sw Verify the wiring type RS232 or RS485 and the settings of the serial port of the instrument The instrumant communicates Not shielded wires Use shielded wires with the PC but the Lack of terminations Connect terminations as par communication is interrupted 8 4 1 and 8 4 2 The instrument lose the CODE E prom lost data to try again to input another or the PASSWORD time the data lost If the problem have not been solved or for other informations not covered in the present manual please contact with our Technical Assistance Department Before contacting it is suggested to collect the maximum information regarding the installation and mainly the following data Model and serial number from the label on the top of the instrument housing Purchase receipt Description of problem System configuration hardware fitted firmware release etc pq 53 EMA11 USER MANUAL 14 EMA SERIAL COMMUNICATION PROTOCOL The Electrical Multifunction Analyzer EMA series are disposal with three different communication protocol ASCII standard Contrel MODBUS RTU PROFIBUS DP Others on request The standard communication protocol has been optimised for the connection of the analysers with the NRG management software allowing to use all the available functions automatical search of the unit the network automatical data downloading etc The other protocol comes supplied on request Even s
27. e warranty covers free repair or replacement of equipment parts which are recognized as faulty due to manufacturing defects Warranty does not cover those parts which results defective due to misuse or improper use incorrect installation or maintenance operation by unauthorized personnel damage during transportation or which in any case do not show manufacturing defects of the equipment Not included in the warranty terms are technical interventions regarding equipment installation to electrical systems The manufacturer declines any responsibility for eventual injury or damage to persons animals or things as result of failure to follow the instructions in the user manual or caused by improper use of equipment Warranty covers equipment returned ex works The expenses of transport as well as the relative risks of same both to and from the place of repair will be the sole responsibility of the user This warranty expires after the date of purchase and any assistance required after said date including spare parts labor transport of personnel and material will be charged to the user following the tariffs in force for Technical Assistance Service at the time of such requested service In any case the replacement of the equipment as well as the extension of warranty after such breakdown is excluded EMA11 USER MANUAL 1 1 1 1 2 1 3 2 TECHNICAL FEATURES 2 1 GENERAL SPECIFICATIONS 2 2 MEASURING METHOD AND ACCURACY 2 3 PROGRAM
28. f the current inputs there is a security locking Suggested is to install the equipment on vibration free switchboards and with an environmental temperature ranging between 10 C and 50 C The panel cut out of the unit is the following 144 138 4 D AJ v v 144 Following the picture below mentioned insert the instrument from the front side of the switchboard from behind insert black support guide on the screw of the instrument once the black support guide fits on the screw and is pushed against the instrument and the internal panel screw the nut until the instrument is fixed on the panel There are n 4 support guides and n 4 nuts to mount the instrument 15 EMA11 USER MANUAL 5 INTERNAL BATTERY To avoid to lose the setup and all storing data the instrument is equipped of a internal battery 2450 5 1 REPLACEMENT INTERNAL BATTERY Only a qualified and authorized technical personnel can change the internal battery This operation will delete all storing data and it will restore the default setup with the exception of the password and the code to enable the harmonics and time bands Using the software NRG or relative serial commands it s possible to download all storing data to avoid to lose it The next figure shows where is located the battery inside the instr
29. f the definition of this voice T Average is the integration time from 1 to 99 minutes for calculating the average power B Light is the time from to 360 seconds in which the display remains on after keyboard inactivity To hold the display always on to set value O The brightness of display declines about 10 each 1000 hour of working Energies allows to choose the unit of measurement for the energy counter kWh Normal or MWh Heavy Synchronization is definition of the syncronizzation of fondamental frequency Mode internal or external V 11 Freq programmable frequency value range 5 500HZ 42 EMA11 USER MANUAL 11 4 SERIAL COMM The serial com1 and com2 page sets the communication parameter of the serial outputs RS232 RS485 The outputs can be RS232 or RS485 standard EIA TIA 422 EIA TIA 485 The parameters programmable are Clock sets the internal clock of the instrument with relative date The format of the date is dd mm yy The format of the time is hh mm ss The submenus Set Clock amp Day Light allows to set the time of the unit and the yearly summer time change With Day Light is possible to enable the hour shift of the summer time and the return at the solar hour at the fixed data The instrument manage the summer time in the year from 1997 to 2030 ACCESS allows to input a code of 6 digit to enable the calculation end the visualizzation of the harmonics and or the
30. gnore DSR ignore CD amp R1 ignore RTS 50 2 set at two as the ring number after the which the modem automatically reply the number can be different by 2 but it must be different by O amp WO store the configuration in the register 0 of the modem s not volatile memory YO set the configuration stored in the register O of the modem s not volatile memory as the default configuration at the starting or the reset of modem See the modem s user manal 29 EMA11 USER MANUAL 8 4 5 OPTION RS485 RS232 COM2 PLUG IN a Modem Personal Computer RS485 RS232 SEHHIS HHHH 3 Warning The hardware modification of instrument will change the Setup in the default configuration 30 EMA11 USER MANUAL 9 USE 9 1 FUNCTION KEYS UP amp DOWN KEYS The UP and DOWN keys allows to skip through the real time pages and to select the programming level or to modify values during the input in the setup menu P UP P DOWN LEFT amp RIGHT KEYS The LEFT and RIGHT keys allow to visualize the real time sub pages and to move the cursor in the field of input data in the setup menu To skip from real gt time pages and to go in the menu setup it s necessary to press simultaneously both these keys To come back at
31. hases sequence The information on phase appear only if the three phase sistem voltage is higher of 10V otherwise the display shows Low voltage No Info If the voice of menu Setup General Warnings is Yes the warnings page of inversion of current transformer and phases sequence will be display automatically alternatively at the default page each time that happens an inversion The second page shows the value of the neutral current This page appear only if in Setup General Mode is selected 4 Wire The third page shows the situation of internal battery If the voltage level of internal battery is lower of 2 3V on display will appear Battery LOW otherwise Battery OK This page will be displayed independently of the voice of menu Setup General Warnings when the voltage level is lower of 2 3V Warning If there s not the battery or its voltage level is lower of 2 3V the instrument will lose all storing data in RAM minimimums maximums energy counter and the setup General info Information page shows the main instrument configuration as model firmware version serial number inputs outputs configuration protocol communication etc These informations identify th instrument and its configuration before possible upgrade and for this reason they are very important 39 EMA11 USER MANUAL 11 SETUP 11 1 SETUP PAGES The pages of the setup are GENERAL KCT 0 01 2000 KVT
32. he EMA11 needs to be wired in a separate channel from the power supply cables if an intersection occurs between the power supply cable and the analog wires please remember to cross the intersection at 90 degrees in order to cut the generated magnetic fields 222 EMA11 USER MANUAL 8 2 STANDARD DIGITAL OUTPUTS The schematic of the no 2 standard digital outputs PHOTOMOS of 11 is represented on the following figure AEE 124 230 Vac dc OO LOAD HEEHHEHHEHEEE HHHBHHHHHE Le sss 12 230 Vac dc Power supply from 12 to 230 Vac dc load must not exceed 150mA typical resistor value of PHOTOMOS outputs closed contact is 8 Ronmax 120 Each output be programmed by the operator on min max threshold external band always ON or and pulse output consult the chapter 11 8 The signs and on outputs in the picture have electric meaningsless If long distances must be covered the wires connected to the EMA11 needs to be wired in a separate channel from the power supply cables if an intersection occurs between the power supply cable and the analog wires please remember to cross the intersection at 90 degrees
33. he TIMEBANDS menu with the following sub menu e Period ld period number 10 periods to set differents time bands For each period it s possible to program BAND to program the selected period Month defines the months of the year corresponding at the selected period To use the LEFT and RIGHT keys to select the month and th UP and DOWN keys to enable or disable the month Day defines the days of week corresponding at the selected period The programming is the same of the month programming Band defines the time of the day in which the energy counters are subdvivided in the 4 time bands P1 P2 P3 P4 Time 1 8 to set the time bands are available 8 different times 44 EMA11 USER MANUAL Inside the Time its possible to set the hour StartHour and the minutes StartMin in which the time band starts Select Type insert the band P1 P2 P3 or P4 to link at the consumptions The band setted will finish when another band will start or at the end of the day For example if the energy consumptions from 8 00 to 12 00 are in the band P2 and from 12 00 to 18 00 in the band P3 it s necessary to set 8 00 like start time StartHour and StartMin in TIME 1 with band P2 Type 12 00 like start time StartHour and StartMin in TIME 2 with band P3 Type and 18 00 like start time StartHour and StartMin in TIME 3 with band P1 Type in this way the P1 band will maintain untill 8 00 of the day after without ot
34. her programming P1 band is the most economic and the P4 band is the most expensive 11 6 HOLIDAYS Its possible to program the days in the year in which the time bands programmed are not used and the energy consumption end up in the economic band P1 This fuction can be useful in holiday or in days in which the energy suppliers apply different tariff of others days Its possible to program Day Index allows to set 40 differents days like holidays After the selection of index define the day of the year Month is the month of the day in programming One number from 1 to 12 defines the month 1 January 2 February etc Day is the day of the month corresponding at the holyday from 1 to 31 Example New day 1 January Day index 1 Month 01 January Day 01 Christmas 25 December Day index 2 Month 12 December Day 25 The consumption of this special feature if used will be saved always into the tariff 1 45 EMA11 USER MANUAL 11 7 STORAGE The STORAGE menu allows the programming of the data to store 4 section of storing exist relative minimums and maximums average powers harmonic components samples only with NRG software or serial command The storage is organized as FIFO first in first out tyoe memory When the memory is full older data will be overwritten by new data amp The acquisition time is expressed in minutes up to 12 M
35. izzation of THD and harmonic components up to 31 with fundamental frequency 50 60Hz of voltage and current of each line expressed in numerical and graphic form Once entering in the harmonic analyzes page it may be possible with the RIGHT amp LEFT keys to page through the order of the harmonics up to the 31 The pages shows the histograms the order of the harmonic and value referred to the fundamental 10 3 STATUS AND INFORMATION PAGES The status and or information pages includes the displaying of clock and internal calendar the condition of internal RAM memory the condition of digital I O warnings general info of the instrument Clock Calendar e time format hours minutes second hh mm ss e date format day month year dd mm yyyy e day of the week 237 EMA11 USER MANUAL Condition internal RAM memory 4 pages selectable with LEFT and RIGHT keys of information on condition internal RAM memory The internal memory is divided in 4 section e storage values average powers Avg Powers e storage values relative minimum and maximum Min Max storage values harmonic components Harmonics storage values samples Samples Each section is displayed in own sub page The page shows the following information e Type of section of memory for examples samples e Status ON if memory enabled or OFF if memory disabled Record s number of stored events in memory Memory Kb
36. l RAM and transmitted to a remote PC via RS485 standard on which the compatible management software has been installed It is possible to monitor via digital outputs 2 dig out standard alarms sirens or strategically factory loads EMA11 with optional harmonic analyzes can carry out network harmonic content analyzes with FFT method up to the 31 harmonic very useful to locate network disturbances Together with the option Micro Network Interruption the EMA can perform accurate deep and complete energy analyzes Beside of the 11 features the easy way to integrate new additional options make this instrument very strong and confortable for all uses All parameters are displayed on a graphic LCD display light back with a resolution of 128x128 dot Displaying and programming mode are carried out by means of a 5 buttons keyboard 1 3 CE CONFORMITY AND STANDARDS The instrument was tested in compliance with EMC 89 336 EEC and complies with the following standards EMISSIONS EN 50081 1 1992 EN 55022 CLASS B CISPR 22 IMMUNITY EN 50082 1 light industry 1992 EMA11 USER MANUAL 2 TECHNICAL FEATURES 2 1 GENERAL SPECIFICATIONS Power supply Auxiliary voltage 85 265 V 50 60 Hz dc 20 60 V 50 60 Hz dc option Isolation voltage 3 00 Vac rms x 1 minute Voltage input 3 inputs range 10 650Vrms between phase phase Overvoltage up to 750 Vac permanent beyond this value it is imperative to use voltage transformers Re
37. l visualized pages may be set as main page by the operator this means that the preferred page may be set as the one to be visualized To set the main page the operator shall press the ENTER key for at least 2 seconds the symbol of the main page is shown with a the top right side of the display The visulization of real time measure include a sequence of principal pages that its possible to see pressing and DOWN keys and secondary pages that it s possible to see pressing LEFT and RIGHT keys when these symbols lt and gt compare 10 1 VISUALIZATION TREE lt lt OLS M 3 phase system voltage current active power and power factor L1 phase voltage current active power and power factor L2 phase voltage current active power and power factor L3 phase voltage current active power and power factor phase voltage line voltage line current average line current average 3 phase system current total and phase active power total and phase reactive power total and phase apparent power total and phase power factor total and phase Cos frequency and temperature active and reactive energy counter average power today energy counter yesterday energy counter this month energy counter previous month energy counter this year energy counter previous year energy counter total energy counter and time bands absolute minimum and maximum value THD and harmonic
38. nication line is shorter of 5 mt and a multidrop network will not use it s not necessary to use a serial line converter because the serial output is compatible with the PC as shown on the above mentioned picture A RS232 could reach 15mt but the presence of noises in the industrial application could cause breakdown in the comunication The connection from EMA serial port RS232 to PC RS232 serial port is PTP Pin To Pin connection SIGNAL EMA11 DB9 28 EMA11 USER MANUAL 8 4 4 MODEM CONNECTION MODEM APPLICATION Ss PHONE LINE H RS232 MODEM MODEM 8222 eS AN CES PE Co EE Its possible to manage the supervisioning of energy consumption through remote structures as modem LS application in order to cover big distances E PRINTER Signal EMA 11 modem DB25 modem DB9 TX Transmit Data 1 2 3 RX Receive Data 2 3 2 Ground Signal GrouND 3 T 5 make the remote connection it needs to program the remote modem connected to the EMA network To program this modem the user have to use any comunication program like Hyperterminal The Hayes commands to program a standard modem are the following AT amp D0 amp S0 amp CO amp R1 50 2 ATX3 AT amp WOYO The meaning fo the commands is the following AT is the command prefix amp DO ignore DTR amp 50 i
39. o the NRG software supports the MODBUS protocol About all the informations of protocols communication to see specific user manual EMA SERIAL COMMUNICATION PROTOCOL 54 EMA11 USER MANUAL 15 Notes WARNING Contrel Elettronica Srl declines all liability for any damage to people or property caused by improper or incorrect use of its products Contrel Elettronica Srl reserves the right to change product specifications without prior notice 55
40. of management of the outputs are explained the previous paragraph OUTPUT 1 OUTPUT 1 S 2 8 3 9 4 10 _ OUTPUI2 5 A 6 42 26 EMA11 USER MANUAL 8 4 SERIAL OUTPUTS Through the combination of an asynchronous serial RS485 and RS232 communication line it is possible to exchange information between the instrument and PC PLC or other compatible systems All transmitted characters are in ASCII American Standard Code for Information Interchange format RS485 allows a multi drop connection in order to link up several instruments on the same network on the other hand RS232 allows a single point connection This last connection must be carried out when both systems are turned off and disconnected from the power line in order to avoid damages on the serial output RS232 may be 9 or 25 pin connection please follow up the enclosed table Signal Description DB9 DB25 EMA11 DCD Data Carrier Detect 1 8 Data Set Ready Request To Send 7 Clear To Send RI Ring Indicator 9 22 The maximum suggested length of a RS 485 connection is about 1200 mt while for a RS232 connection about 5 mt For longer distances cables with low attenuation or connection to line amplifier are recommended Up to maximum 32 units can be wired on the same serial line RS485 exceeding this number it is Imperative to insert a signal repeater each repeater can manage up to 32 instruments The
41. operator to erase all the previous stored data in the memory in order to enable a new recording campaign at empty memory with no residual informations The data downloaded on PC using NRG software or comunication protocol does not come deleted and for this reason it s possible to recover them using the function of comunication protocol 11 8 DIGITAL OUTPUT The digital outputs can be programmed to function like alarm overload load management for consumption optimization etc or pulses emission for energy calculation or remote activation using software NRG Out Index expresses the number of output from 1 to 6 DO1 and DO2 standard to select or program which are present on the hardware of the instrument Type allows to select the type of functioning as Always Off digital output is always disabled and may be turned off via NRG Software Energy Pulse pulse emission proportional at energy registered and depending the programming used valid only for Energies Min Threshold the output is enabled if the value of the selected variable is lower of the programmed value Max Threshold the output is enabled if the value of the selected variable is higher of the programmed value Band the output is enabled if the value of the selected variable is lower of the programmed minimum value o higher of the programmed maximum value Always On digital output is always enabled and may be turned on via NRG Software Mea
42. ou insert the option board in the wrong slot you can damage the insrument 20 EMA11 USER MANUAL 7 1 INSERTION PROCEDURE Only a qualified and authorized technical personnel can insert the plug in module Follow this procedure to operate in the maximum security Cut off the power supply of instrument and disconnet all input and all output Remove the seal from the rear door Open and remove the rear door Its necessary to proceed with a lot of accuracy whitout to touch other components because there are residual voltages Before to start the operation of insertion of the plug in module in the slot number 1 it s necessary to remove the extractible terminal board If you must insert plug in modules in both slots it s recommendable but not necessary to insert before the board on slot number 1 and after the module on slot number 2 Insert with a lot of accuracy the module with an angle of 30 in the low direction respect the slot of insertion and with in high position the component side see the following picture Rotate the board in the high direction until when two hooks hold the board that now sholuld be at the same level of the slot see the following picture Close the instrument using the rear door with the hole in which will enter the plug in module of the slot number 1 You can use a screwdriver to help you to centre the terminal board with the hole of rear door It s not necessary to
43. p The default password is 0000 In this condition the setup can be always opened and it s always possible to change any parameter If the password is different by 0000 from 0001 to 9999 at the entrance of setup the password will be request It wil be always possible to see every parameter but it wil be impossible to modify everything if the password is ignored Only to input the correct password it s possible to change every parameter To set the new password as 0000 the instrument come back to work at default status Call the constructor to have a emergency password if you lose or forget the password 11 13 RESET The Reset page allows to cancel some operation or the complete operation of the setup system reset modes are classified in four groups RESET MEASURES reset all values or selected group of measure In particular e All reset all of measure minimum and maximum energy counter time bands e Energies reset total energy counter e TimeBands reset time bands e Min Max reset minimums maximums e Reset Setup delete all definition in the setup including the password and the instrument come back to default setup e Reset Storage delete all data stored in the memory e Reset Global reset complete of the instrument Setup measures stored RAM and password 11 14 EXIT SETUP The last voice of the setup menu is EXIT SETUP which allows the operator to leave the instrument setup and go back to the
44. rd the instrument will have 4 digital inputs and 4 digital outputs see in the following table the pin out of this plug in module OUTPUT 3 OUTPUT 3 EE S S S S INPUT 3 INPUT 3 ee OUTPUT 4 OUTPUT 4 __ ______ INPUT 4 INPUT 4 24 EMA11 USER MANUAL 8 3 3 45 DIGITAL OUTPUTS OPTION 4DO PLUG IN The option have 4 static digital outputs The instrument will manage 2 digital inputs and 6 digital outpus all statics The pin out is showed in the following table OUTPUT 3 OUTPUT 3 OUTPUT 5 _ OUTPUT 6 OUTPUT 6 OUTPUT 4 8 3 4 4 RELAY DIGITAL OUTPUTS OPTION 4DO PLUG IN The option have 4 relay digital outputs The instrument will manage 2 digital inputs and 6 digital outputs 2 statics and 4 relays The pin out is the same of the option before LX a 8 9 OUTPUT S 10 11 12 EE NEN 2 3 4 OUTPUT4 5 6 8 3 5 2 ANALOG OUTPUTS OPTION 2A0 PLUG IN This option will allow to manage 2 digital inputs 2 digital outputs and 2 analog outputs See the chapter 11 10 to program 0 20mA o 4 20mA this outputs The following table shows the pin out 9 OUTPUT 2 107 OUTPUT 2 101 OUTPUT 1 42 OUTPUT 1 Output is galvanically isolated with a maximum load impedance of 5000 The connection to other peripherals as recorders ammeters remote indicators etc must be carried out using a maximum
45. rify always to insert the right value 85 265 Vac dc standard 20 60 Vac dc OPTION The instrument is equipped with an internal protection fuse on the power supply type 5x20mm dimensions 315mA 250V Fast es Schurter FSF If the instrument is off in presence of power supply it s necessary to verify the internal fuse In case of fuse replacement disconnect the instrument from the power supply current plus voltage input and all input output sections digital input output analog output RS485 RS232 serial port etc then open the rear door and change the fuse that is near the power supply connector in the low part of instrument Only a qualified and authorized technical personnel can change the fuse Extract the interrupted fuse using a screwdriver and with a pliers insert the new fuse The instrument s power supply does not require any earth connection 17 EMA11 USER MANUAL 6 2 VOLTAGE INPUTS 11 can measure voltages up to a maximum 650 Vrms between phase phase further N that value it is imperative to use voltage transformer When using voltage transformer make sure to respect the input and output polarities Use cables with maximum cross section of 2 5mm attach them to the voltage measurement screw terminals Connect the instrument following up the wiring diagrams described on chapter 6 4 EMA11 was developed and tested in accordance with IEC 348 class 1 standards for operating voltages up to 650 Vac rms 6 3
46. s voltage L1 THD and harmonics voltage L2 THD and harmonics voltage L3 THD and harmonics current L1 THD and harmonics current L2 THD and harmonics current L3 clock calendar average power minimum and maximum etry harmonics samples input output p inversion TA and phases warnings neutral current Info instrument battery 29 EMA11 USER MANUAL 10 2 MEASURES VISUALIZATION Variable reading of three phase system e V KV RMS three phase system voltage gt V L L A KA RMS three phase system current gt I W KW MW GW three phase system active power gt W PF three phase system power factor gt PF Variable reading of phase L1 V KV RMS voltage between L1 phase and neutral V1 A KA RMS current L1 I1 W KW MW GW active power L1 W1 PF power factor L1 PF1 Variable reading of phase L2 V KV RMS voltage between L2 phase and neutral V2 A KA RMS current L2 12 W KW MW GW active power L2 W2 PF power factor L2 PF2 Variable reading of phase L3 V KV RMS voltage between L3 phase and neutral V3 A RMS current L3 I3 W KW MW GW active power L3 W3 power factor L3 Variable reading of phase voltage V KV rms voltage between L1 and L2 V1 2 V KV rms voltage between L2 and L3 V2 3 V KV rms voltage between L3 and L1 V3 1
47. sistor input 2 MO Current input 3 isolated inputs internal CT range 10ma 5A rms Overcurrent max 10 A 100A for 1 second Consumption typical 6 VA max full optional Serial output RS485 RS232 configurable on board half duplex isolated signals Tx Rx Gnd Programmable baud rate from 1 200 to 19 200 bps Protocol ASCII standard Modbus standard and Profibus are options Input signals 2 passive optoisolated inputs 1000 V 12 24 Vdc up to 8 using options Output signals 2 photomos outputs 12 230 Vac dc 150mA max up to 6 using options 2 0 20 or 4 20 mA analog outputs galvanically isolated option Memory data retention RAM 128 KB useful 100KB 1 Mbyte all useful option No volatile memory data using internal battery Data retention 5 years tipical at 25 C 77 F Stored variables Average power Min max values Harmonics option Network Interruption option Energy Samples Display interface 128x128 dot graphic LCD at high contrast adjustable and with LED backlit Dimension 70x70mm Keyboard interface o functional keys for paging and programming Operating temperature From 10 C 23 F to 50 C 122 a A EMA11 USER MANUAL Storage temperature From 15 C 5 F to 70 C 140 F Operating humidity 90 not condensing Protection standards IP 52 front EN60529 IP65 with gasket on request IP 20 screw and terminals Weight and dimension 0 43
48. sure Code is the number of measure to associate on the digital output from 128 to 257 see list of variables on chapter 12 To program the digital output as pulse emissioni it s necessary to select a energy variable Value intervention threshold value i e for overcoming 340V program 340 0 or 150kW program 150000 0 or pulse weight i e if the active positive energy pulses must be emitted every 1 kWh program 1 00 programmable from 0 01 to 100 kWh pulse Time is the threshold delay for intervention expressed in second 0 655 seconds or duration time of Pulse expressed in milliseconds 50 500 ms Hysteresis it s the percentage of alarm s value under which the alarm come back in off condition its programmable from 0 to 99 example max threshold of active power at 150kW with 10 hysteresis means the alarm come back in off condiction when the active power will be 150 152135kW It s not available in Pulse mode InfValue and SupValue low limit and high limit of alarm in band way 47 EMA11 USER MANUAL 11 9 DIGITAL INPUT In the DIGITAL INPUT menu it s possibile to program the digital input function for both standards and options The 2 standards digital input can be programmed how follow defines the type of operation NOT USED if none input is selected or enabled CLOCK SYNCRONIZATION Syncronization of the internal clock When the impulse arrives on digital input the internal clock s seconds
49. the ENTER key the configuration is saved Measure Code is the number of measure to associate from 128 to 257 expressed in decimals at the analog output see list of variables on the chapter 12 Min full scale value of the lower limit of the programmed value Measure Code Once the minimum full scale has been programmed the instrument automatically will associate the minimum current value or 4 mA at this value Max full scale value of the upper limit of the programmed value Measure Code Once the maximum full scale has been programmed the instrument automatically will associate the maximum current value 20 mA at this value If the minimum end scale value is lower of maximum end scale value the out of current will be directly proportional at variable set otherwise it will be inversely proportional Minimum and maximum can be negative value 49 EMA11 USER MANUAL 11 11 PRESET Its possible to set energy counters at initial value This function is useful for example to compare the consumption with an energy counter already in use This value are expressed in kWh and kVArh the visualization on total energies page will be congruent with the type of energy Normal or Heavy set in GENERAL ENERGIES The time bands counters don t consider the preset values Only total energy counters consider these value 11 12 PASSWORD Its possible to set a numeric password to modify of the setu
50. timebands These options are both enabled if it s an H instrument the code is on a report These options are disabled if it s an L instrument but one or both can be enabled To make this It s necessary to give the serial number and the option s to enable at Contrel Elettronica Srl that will send the access code corresponding at the instrument and the option s selected Address is the address node or logic number from 01 to 255 in MODBUS or from 01 to 128 in ASCII This number identify the node in a network and consequently the instrument or the peripheral of a serial multidrop network This parameter is setted freely This parameter is setted automatically using NRG software with ASCII protocol while with MODBUS protocol it must be setted manually COM1 COM2 are configured by the following submenus Baud transmission speed programmable from 1200 to 19200 bps Parity parity sequence programmable NONE EVEN and ODD DataBit number of data bits programmable 7 or 8 bit Type type of serial output to manage COM 1 may manage RS485 or RS232 COM2 may manage RS485 or RS232 Profibus 43 EMA11 USER MANUAL 11 5 TIMEBANDS The 11 instrument can subdivide the energy consumption in 4 time bands In this way it s possible to value the energy costs where the energy suppliers apply the timeband tariff or its necessary to divide the consumption in different period To program the time bands function to accede at
51. ument Extractible Pin strip Conctat Battery 4 q S Battery Instruction to change the internal battery 1 It s necessary to cut off the power supply of instrument and to disconnet all input and all output 2 Remove the seal from the rear door 3 Open and remove the rear door 4 It s necessary to pay attention to presence of residual voltage inside the instrument Extract the battery circuit without to touch any other component Change the battery Put the positive pole in the high direcxtion Plug in the circuit with the new battery in the high directions inside the instrument The 4 pin strip must meet with their relative support 7 Putagain end close the rear door Restore all the connection and turn on the instrument 8 In the Warnings page is possible to check the condition of battery BATTERY OK 16 EMA11 USER MANUAL 6 CONNECTION 1 ON Q l Connection Table Connector Name Connector Name 1 TX A seroutpu 8 2 Digital Input RX B seroutpu 9 2 Digital Input ser output 10 220 71 1 Digital Input 7 1 Digital Input 2 Digital Output A 1 Digital Output B 2 Digital Output B 6 1 POWER SUPPLY The instrument without power supply doesn t function Before powering the instrument ve
52. ve energy counter positive and negative and reactive capacitive and inductive divided 4 programmable time bands P1 P2 P3 P4 The 7 pages are consumption previous and present year consumption previous and presnt month consumption of yesterday and today and total counter of bands In a voice of menu setup paragraph 11 5 its possible to program times days and months in which the energy count is added at the different bands External signals connected to digital inputs and with a right programming can change the bands in the time If the energy is Heavy the values are displayed in MWh e MVArh 36 EMA11 USER MANUAL Variable reading MIN amp MAX values 12 pages selected by LEFT and RIGHT keys show minimum and maximum of the value of 12 parameters taken after last reset Date and time of reading are displayed on this pages Its possible to see the values of this parameters three phase system voltage XV L L L1 phase voltage V L1 L2 phase voltage V L2 L3 phase voltage V 13 three phase system current I L1 phase current 111 L2 phase current 112 L3 phase current I L3 three phase system active power gt W three phase system apparent power gt VA three phase system power factor 5 PF three phase system average active power gt Wav Variable reading total harmonic distortion and harmonic components of voltage and current 6 pages of visual

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