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Parameters with EM3460 Smart Demand

1. V secondary LL 48 Hz 50 Hz 51 Hz 60 Hz 100 120 v 160 155 152 130 400 440 v 140 140 140 130 The last important point is that the overflow under the conditions shown above is controlled mainly by the values of the Voltage signal and Frequency It is 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Appendix C Frequently Asked Questions independent of the load For example it the feeder were energized and there was no load then the roll over values of kWh and kVAh at INTEG overflow will be 0 For voltage signals 500 to 600 VLL the Max EM 3460 Vsec input there is a load dependency If the load runs at maximum continuously then the overflow interval can reduce to 120 days But this is a rather impractical condition Therefore the above table is adequate for all practical purposes Q 11 How is the smart demand controller s TOU Auto reset configured This is done by Schneider Electric Customer Support Please contact your local representative for details 2011 Schneider Electric All rights reserved 63 Contact us at Schneider Electric India Pvt Ltd 44 P Electronics City East Phase Hosur Road Bangalore 560 100 India E in care in schneider electric com Toll Free Help desk Numbers 1800 180 1707 1800 103 0011 www schneider electric co in 9
2. indicated Err 158 159 Improper procedure This error typically occurs when the warning calibration procedure is not being correctly followed May also take place when entry to the full setup is attempted while the unit is still wired to the panel Err 166 Suspected hardware If this recurs contact Schneider Electric problem for Service and re calibration NOTE If the error number indicates data loss then ensure a fresh start Repeat the full setup procedure originally used when the smart demand controller was first installed If the full setup must be delayed due to your operational needs then periodically cross check the readings until the full setup can be done as the data loss could give rise to erroneous readings The smart demand controller demand control outputs should not be used in this case If even the full setup does not clear the problem contact Schneider Electric for service Servicing If the EM3460 smart demand controller fails the unit has to be disconnected and dismounted from the panel and sent to Schneider Electric for servicing To make this step convenient the initial installation should include the following points e The mounting of the smart demand controller should allow easy access to the mounting clamps and terminals blocks e The PT secondary connections and auxiliary supply should be easy to de energize and disconnect Installing protective fuses for example achieves th
3. 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 3 PROG Menu Setup View Setup e View setup mode allows the user to only view the setup parameters e In order to enter into view setup mode do not enter the code while entering into the setup e Refer to Full setup on page 18 for more information about setup entry Setup parameters The following table gives the setup parameters available in full and partial setups of the smart demand controller Table 3 4 Setup parameters in full and partial setups Parameters Range Default value Time 24Hr format 00 00 00 to 23 59 59 12 00 00 The internal clock of the smart demand controller is initialized at the time of installation via the full setup Set the hours and minutes to A HEE SET correct value or V and You can set the seconds value to zero using the above mentioned keys Once set the clock maintains the correct time even through power failures The partial setup allows only small corrections x 5 minutes to the system s clock 9o Start 96 0 to 0 15 96 of 0 Sets the starting current of the smart demand 99 9 amps controller If set very low i e below 0 15 of full scale then creep condition is introduced As a result the integrator continuously runs with smallest pick up values when there
4. 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 4 Installation Chapter 4 Installation This chapter explains EM3460 smart demand controllers e Mechanical installation e Electrical installation Mechanical Installation Location Usage First decide on how the EM3460 smart demand controller is going to be used If you do not already have an energy management program in operation then your energy consultant should be able to help you identify which load s offer maximum savings potential This will help you decide 1 Which point is to be monitored 2 From what location the readings will be viewed 3 Who must have access to the instrument and how often For best performance choose a location which provides all the required signals with minimum wiring lengths The smart demand controller provides three output relays with change over contacts for demand control If these outputs are going to be used then they will typically be 1 Wired to a local annunciator panel or 2 Extended to remote annunciators and or 3 Used for automatic tripping through control contactors wired to a circuit breaker 2011 Schneider Electric All rights reserved 31 Contact us at EM3460 Smart Demand Controller Chapter 4 Installation 32 91 9971138071 contactus kmindustrialcorp c
5. System Type The EM3460 smart demand controller should know the type of 3 phase system it is connected to This is programmed in the full setup procedure See Full setup on page 18 for more information The system type consists of the measurement mode Star 3E Delta 2E or Delta 3E and the signal mode 4V3A 3V3A or 3V2A Other combinations are primarily meant for testing and educational use and not suitable for tariff related use The following table helps you to select the correct system type Table 4 3 System Type SETUP CONNECTED SIGNALS SYSTEM TYPE APPLICATION Vi V2 V3 VN A1 A2 A3 Y Y Y Y Y Y Y Star3E 4V3A For three element Wattmeter measurement of all 4 wire systems with Neutral Y Y Y Y Y Gnd Y Delta2E 3V2A For two element measurement of 3 wire systems without A2 CT A2 is computed Y Y Y Gnd Y Y Y Delta2E 3V3A 3 wire systems with A2 CT Y Y Y Gnd Y Y Y Delta3E 3V3A Three element measurement of 3 wire systems where phase wise power is important But accuracy is less than Delta 2E especially if the system is highly 21096 unbalanced 2011 Schneider Electric All rights reserved 37 Contact us at EM3460 Smart Demand Controller Chapter 4 Installation 38 91 9971138071 contactus kmindustrialcorp com CTD7308 01 2011 Connection Diagrams e First check all the polarities and ratings If signals should be looped to other equipment then current inputs mu
6. 2011 Schneider Electric All rights reserved 57 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Appendix A Four Quadrant Operation 01 2011 58 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Appendix B EM3460 Smart Demand Controller Calibration Appendix B EM3460 Smart Demand Controller Calibration e The rated accuracy drift of the EM3460 smart demand controller is 0 1 per year e The user can decide the calibration interval based on his her accuracy requirements e For re calibration the smart demand controller unit must be sent to Schneider Electric e Before sending the unit for re calibration make a note of all the important readings e After receiving the re calibrated smart demand controller unit repeat the installation steps starting with full setup Operation will begin with the data cleared 2011 Schneider Electric All rights reserved 59 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Appendix B EM3460 Smart Demand Controller Calibration 01 2011 60 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart D
7. Fr ea Hrs Since Dy dt mth Hr min sec Run Hrs r XXXX XX Off Hrs r XXXX XX Intr in XXX Basic VA fwd VAh rev VAh total VAh fwd Wh rev lt gt 2 fwd VARh rev VARh netl VARh Integ amp Old Energy VARh fwd Wh rev Wh total W MaxDM Dy dt mth Hr min sec 0 gt lt Integ amp Old Demand H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 Profile Basic Hrs H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 Basic VA H1 Dy dt mth Hr min sec H2 H4 L4 Dy dt mth Hr min sec L3 L1 Profile O 2011 Schneider Electric All rights reserved 29 Contact us at EM3460 Smart Demand Controller Chapter 3 PROG Menu Setup 30 91 9971138071 contactus kmindustrialcorp com parameter http kmindustrialcorp com CTD7308 01 2011 H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 H4 L1 H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 H1 Dy dt mth Hr min sec H2 L4 Dy dt mth Hr min sec L3 dprof LO xxxxx L 1 XXXXX L 2 L 9 L9 XXXXX L8 L1 XXXXX total tXXX
8. e Voltage input burden 0 2 VA Max per input Current Signal Connections There are three pairs of current input terminals marked A1 S1 52 A2 S1 S2 and A3 S1 S2 For proper measurements the phase identification as well as the polarity of the current signals must be correct The forward flow import by consumer current direction must be into the S1 terminal and the exit from the S2 terminal Any unused current input must have its two terminals S1 S2 shorted together and also grounded preferably The standard EM3460 smart demand controller comes with 5 A AC current inputs for connection through a 5 A current transformer CT If yur CT hasa 1A secondary or you plan to use your smart demand controller as a portable unit with 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 4 Installation schneider Electric Clamp On current probes a 1 A ordering option can be set in the factory Figure 4 2 Ar line to load direction LINE LOAD Import e BX gt lt S2 S1 S2 Note unused Ay input Only relevant EM 3460 terminal block connections are shown Field programmable CT primary range 1 to 30 000A AC CT secondary 5 A AC standard 1 A ordering option CT burden 0 2VA max per input
9. AC 30 seconds 40 A 8 A AC seven seconds 100 A 20 A AC one second CT Primary 1A to 30 kA AC Field Programmable Auxiliary supply control power Standard Single phase 50Hz 240 VAC nominal Working range 190 to 270 V Factory set ordering option 110 VAC nominal Working range 85 to 130 V Burden Control outputs EM 3460 2011 Schneider Electric All rights reserved PT and CT 0 2 VA maximum per input signal Auxiliary supply control power 5 VA maximum For all voltage current power and energy parameters CLASS 1 0 0 2 of Full Scale 0 8 of rdg 1 Count CLASS 0 5 0 1 of Full Scale 0 4 of rdg 1 Count Frequency 0 296 of reading Ranges 48 52 or 60Hz Potential free changeover contacts Three separate outputs for the following conditions a Predicted Demand exceeds Upper Limit b Demand exceeds Upper Limit c Restore Load Contact Rating 240V 24V dc 1A Max with supplied Spark Quencher paralleled with load Suitable for control contactor Coil rating 60VA Max 15VA Max 13 http kmindustrialcorp com Contact us at EM3460 Smart Demand Controller 91 9971138071 contactus kmindustrialcorp com Chapter 1 EM 3460 Smart Demand Controller Product Description 14 Dimensions Panel cutout Mounting Weight Operating temperature Emission Fast transient Electrostatic discharge Impulse voltage Protection against
10. dust and water References Digital Readout Keyboard Secure settings Mechanical characteristics Bezel 192 x 144mm Depth behind Bezel 110 mm 186mm x 138 mm 1 0 mm Panel mounting with four clamps provided 1800 gms approximately Environmental characteristics Oto 60 C 32 to 140 F Safety and standards CISPR22 Up to 2kV IEC 61000 4 4 level 3 IEC 61000 4 2 6kV IEC 60060 1 2 50 Front IP 51 Rear IP 40 CBIP 88 IEC 1036 Other characteristics Seven digit 14 mm seven segment red LED Automatic placement of decimal point Automatic conversion from Kilo to Mega units Ergonomic sealed Membrane type wipe clean surface Access to edit the settings through user programmable password http kmindustrialcorp com CTD7308 01 2011 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 2 Safety Precautions Chapter 2 Safety Precautions This section contains important safety precautions that must be followed before attempting to install service or maintain electrical equipment Carefully read and follow the safety precautions outlined below DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION OR ARC FLASH e Apply appropriate personal protective equipment PPE and follow safe electrical work practices In the USA see NFP
11. 9 9 shorting EARTH Pri block Panel J Ground CAZET NOTE 1 PTs are required for voltages greater than 440v ac L L 600v ac L L max 40 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 4 Installation Figure 4 5 3 phase 4 wire Star LT Systems with direct voltage connections voltages less than 600 VAC L L and 3 CT s Star No PTs amp 3CTs Measurement mode Star 3E Auxiliary power supply Signal mode 4V 3A ac 240v or 110v no Nc c No wc c Nc no c Li L2 E x X AUXILIARY PdDM UL DM gt UL RESTORE gt SUPPLY fff Rating ac 240V 3A dc 24V 2A A Use External Spark Quench ac A EM 3460 CONTROL OUTPUTS 50 60 Hz A Ensure Surge Suppressor is fitted before connecting Aux Supply See Schneider Electric India Pvt Lid website CAUTION wengdagams amp EM 3460 control outputs Smart Demand controller Model a NIU ERA Acc Class Version SI No Options RS 485 PORT V in 110 415VLL ac CURRENT INPUT ac A 2 5 6 7 8 9 10 V2 AEG ass e TE Lil lo Q shorting EARTH block Panel o T 1 Ground NOTE 1 With a direct voltage connection no PTs programme Vsec Vpri Typically Vpri 0 415kv Vsec 415v 2011 Schneider Electric All rights reserved 41 Contact us at EM3460 Smart Demand
12. CTD7308 EM3460 Smart Demand Controller 01 2011 Appendix A Four Quadrant Operation e kVA demand DM The locked kVA as above is used for demand computation while in Q4 Note that Q2 is not processed here since demand computation is already locked for reverse flow Q2 and Q3 whether D PAR is kW or kVA This lock is not meaningful when the D PAR is kW NOTE 1 Locking has no effect on the computation or display of instantaneous parameters It affects only the computation and display of integrated parameters Q2 and Q3 energy parameters are available only if the import export IE option has been ordered NOTE 2 The PF Lock has been placed in partial setup and given a password authorization level of 1xxx or 2xxx This has been done so that locking can be corrected without having to enter full setup and losing data If the Locking Level is re programmed the smart demand controller will re compute kVARh and kVAh correctly according to the new locking level In the smart demand controller adding or removing lock level 3 will take worst case 1 to 30 minutes d Prd for demand to approach its new locked value and should not be done during critical demand peaks Maximum demand MD is not re adjusted NOTE 3 PF lock level 3 is not available if the D PAR has been set to kW in the smart demand controller If the PF lock level is programmed to 3 entering full setup and changing D PAR to kW will automatically reset the PF lock level to 0
13. Chapter 3 PROG Menu Setup 01 2011 NOTE 1 Ifyou prefer convenient password settings over more security leave the passwords to the factory defaults 2000 3000 and 4000 But change the password 1000 before someone re programs the passwords otherwise you will get locked out permanently 2 Ifyou do not enter the correct password while entering the setup you will not be able to change the setup parameters values but you can view them 3 When changing codes remember to note the new code in a safe place if you forget your code the supervisor can give you a new one If the supervisor forgets and cannot enter his correct 1xxx code then code re assignments can no longer be done To make the unit operational again the smart demand controller must be disconnected and sent to Schneider Electric Schneider Electric must erase the smart demand controller completely and re program it The unit will be returned with complete reset and factory settings All data will be lost This service charge is not covered by the warranty and necessarily includes re calibration since cal data also gets affected Enter into Setup e Press and simultaneously to enter setup e You can enter setup in three different modes full setup partial setup and view setup e The following sections explain how to enter into the above mentioned setup modes and to edit the set parameters SET Full Setup e he full setup should be completed before installing the E
14. Energy Management networks and related services e The Communication between the PC amp the smart demand controller is in master slave mode where in the PC master sends a command query containing the instrument ID and the address of the information required The specified smart demand controller then decodes the command and replies with the requested data usually in 50 ms to 75 ms from end of query to start of reply e The PC recognizes all the Schneider Electric Instruments the smart demand controller data concentrator for DM 52 energy meters etc connected to the RS 485 network by a unique number between 1 and 247 called instrument ID This number uniquely identifies each instrument on the RS 485 Network e The standard communication settings are 1 PROTOCOL MODBUS RTU 2 BAUDRATE 9600 300 to 19200 baud supported 3 DATABITS 8 Bits 4 PARITY EVEN 5 STOP BIT 1 e The parameters addresses are given in the following table Table 6 1 Parameter addresses kWh Active energy 3123 KVARN Reactive energy 3125 O 2011 Schneider Electric All rights reserved 53 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 6 RS 485 Communication 01 2011 e The communication error and the display messages are given in the following table Table 6 2 Communication error and display messages Conditi
15. INTEG e The integrator stores the energy parameters for energy management e The energy parameters kVAh kWh kVARh and PF avg show the forward flow of the energy import by consumer With import and export IE option you will see the reverse flow values e Clearing INTEG e You can clear INTEG at any convenient time e Typically clear the INTEG during the end of each month to coincide with the electricity bill e n this way the OLD register contains the last month s records which can be compared with that of the electricity bill Now the INTEG starts recording this month s data e f the week totals are important clear the INTEG weekly for energy studies e Allow the INTEG to run for at least for five minutes after clearing to ensure that the recorded values are accurate e INTEG records the values from zero during start when it is cleared and accumulates values until it is cleared manually or overflowed e f the EM 3460 smart demand controller is operating continuously with absolute maximum signals 600 V and 7 5 A or 1 5 A outputs then the Integrator will fill up and automatically clear itself at the end of three months e For signals which are lower the Integrator can run longer up to 9999 Hours power on T power off maximum e For the most meaningful results it is recommended that the INTEG is cleared through to coincide with an important event such as billing at least once in every three months 24 O 2011
16. O 2011 Schneider Electric All rights reserved 19 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 3 PROG Menu Setup 01 2011 Partial Setup e Partial setup is used to make periodic on line adjustments while the smart demand controller is in operation e However before using new instrument the full setup must be completed The following table explains how to perform partial setup Table 3 3 Partial setup Perform Output Description 1 In order to enter into partial setup the No FUNC LED is lit smart demand controller should be in RMS mode Press until no FUNC LED is lit 2 The display shows Now the unit is ready i HRS or any other to enter setup parameter in the partial setup nip The display shows Enter the valid code to STTS PAR SET and then enter into the partial CODE Y setup In table 3 2 perform the steps 7 to 14 to edit the set parameters and store the new value NOTE During partial setup clearing of integrators is not required SET Press and The smart demand controller continues normal operations while in partial setup However do not enter or remain within the partial setup mode unnecessarily This will increase the possibility of errors particularly from in advertent key operations Do not attempt to set up the smart demand controller at the critical processing points such as midnight 20
17. OUTPUTS 50 60 Hz N Ensure Surge Suppressor is fitted before connecting Aux Supply hone par n Electric India Pvt Lid website electric co in for safety precautions CAUTION pr PD amp EM 3460 ankrer dat Smart Demand controller Model n ANBNG gt Acc Class Version SI No Options V in 110 415VLL ac CURRENT INPUT ac 1 2 3 4 6 7 RS 485 PORT V1 OW V3 Vn RR EARTH block Panel Ground O 2011 Schneider Electric All rights reserved 39 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 4 Installation 01 2011 Figure 4 4 3 phase 3 wire delta HT systems with 3 PT s and 3 CT s Delta 3PTs amp 3CTs Measurement mode Delta 2E Option Delta 3E Auxiliary power supply Signal mode 3V 3A n c L1 L2 AUXILIARY PdDM UL DM gt UL RESTORE tB SUPPLY f l Rating ac 240V 3A dc 24V 2A A Use External Spark Quench ac A EM 3460 CONTROL OUTPUTS 50 60 Hz A Ensure Surge Suppressor is fitted before connecting Aux Supply Electric India Pvt Lid website schneider electric co in for precautions CAUTION Wing diagrame amp EM 3460 control ovlpuis Smart Demand controller Model i A Acc Class Version SI No Options V in 110 415VLL ac CURRENT INPUT ac A 5 gt c 1 2 3 4 5 A1 6 7 v 8 9 10 RS 485 PORT QA MEUM V1 2 V3 Vn mete LITT NIR w WV Wao PT E C 9
18. Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 3 PROG Menu Setup e The Integrator continues to run as long as the signals are present and the auxiliary supply control power is ON If the auxiliary supply control power comes from a source different from the signal being monitored then the signal may be live while the auxiliary supply control power has failed In this case no readings will get recorded In case the auxiliary supply control power is powered by an uninterruptable supply UPS the load run hrs and OFF Hrs will still be recorded correctly since load shutdown is determined through the failure of the voltage and current signals NOTE 1 It is recommended that the auxiliary supply control power for the smart demand controller is derived from its input signals In this case if any one of them fails the other will also fail Thus the stoppage of readings when only the aux supply is failed can be prevented FUNC 2 Use the and to quickly compare the INTEG and OLD values of the displayed parameter OLD Data Register e The OLD data register accumulates the energy values cleared at the end of each energy study e Remember that the OLD values will be over written each time when the INTEG is cleared NOTE FUNC Use the and to quickly compare the INTEG and O
19. Smart Demand Controller sese eee 49 zzv Hee retia qi L NECEM 49 EEE n HO I 50 Enor Codes and Go 160 EEE NE Endes E andia 50 SA e Tas EEE EN NE EN 51 Chapter 6 RS 485 Communication us nies pa npo run uuu Saa a2 UD OHS a XEC EUH snE odsU FEES ac ennenen CUR IRE COP UEM NNI CURE ennes 53 Appendix A Four Quadrant ODeLratlOli 5 eninu to cusan aseo ccdD ennenen ennenen ennenen 55 02 m E oo 55 BE ANN REESE EEE EN DE 55 Energy Parameters sese eee eee eee 56 Import Export Option for Energy sss esse eee 56 OWED COL OC T 56 Appendix B EM3460 Smart Demand Controller Calibration xxxnrrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnn 59 Appendix C Frequently Asked QuestionS rr sannnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnennnnnnnnnennnnnnnnnennnnnnnnnennnnnnnnnennnnnnnnennnnnnnnnnen 61 4 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 1 EM3460 Smart Demand Controller Product Description Chapter 1 EM3460 Smart Demand Controller Product Description Introduction The EM3460 is a smart demand controller The smart demand controller monitors over 25 key parameters and replaces over 20 individual transducers and mete
20. Sub INTEG NOTE Re programming of TOU tariff time settings is required whenever the EB TOU tariff duration and the Indian calendar based on the public holidays are changed Auto Reset The auto reset feature enables the user to reset or clear the INTEG accumulated values to zero on a pre programmed date and time The existing values are stored in the OLD register and the new values are accumulated in the INTEG Physical Description FRONT The front panel consists of e Single row seven digits 14 mm and seven segments LED display with auto scaling capability for Kilo K and Mega M e LED indicators e Seven smart keys for intuitive navigation and easy setup REAR The voltage current auxiliary supply control power and RS 485 communication port terminals are located at the rear of the smart demand controller Front Panel Figure 1 1 EM3460 smart demand controller front panel and parts Restore Mega Kilo ious ue Single row seven digits 14 LL mm and seven segments pei LED display m 3 i Seven smart keys Hrs Trip N i Bes E 14 A s a Integ Old Profile THD Func Conzerv EM 3460 LED indicators 8 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 1 EM3460 Smart Demand Controller Product Description Keys Des
21. and enters into user mode 10 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 1 EM3460 Smart Demand Controller Product Description Rear Panel Figure 1 2 EM3460 smart demand controller rear panel Auxiliary supply control power terminals NC L1 L2 de 4 AUXILIARY PdDM gt UL DM gt UL RESTORE FE SUPPLY E Rating ac 240V 3A dc 24V 2A Use External Spark Quench EM 3460 CONTROL OUTPUTS A Ensure Surge See Schneider Electric In Pvt Lid webs www schineider elecincco in fo CAUTION wiring diagrams amp EM 3460 contr touts Smart Demand controller Model Item code Acc Class ke a G a W T u a Version SI No Options V iN 110 415VLL ac CURRENT INPUT ac 1 2 3 4 V1 OW V3 Vn Voltage input Current input terminals terminals V1 V2 V3 VN A1 A2 A3 O 2011 Schneider Electric All rights reserved 11 Contact us at EM3460 Smart Demand Controller Chapter 1 EM 3460 Smart Demand Controller Product Description 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 01 2011 Parameters with EM3460 Smart Demand Controller The EM3460 smart demand controller has the following parameters 1 Ja System and Phase values V Voltage A Current KVA Apparent power KW Active power KVAR Reactive
22. essential load will be allowed to run with minimum interference say 150 kVA Typically EsLD should be below 1096 of UL If the EsLD is programmed to a high value the load shed action will be advanced unnecessarily to protect the large essential load PdIN Prediction Interval th to of 7 minute d Prd Prediction Interval The demand control algorithm is smart enough to constantly predict your demand Naturally the prediction interval is valid for any period with in 1 to 30 minute of the demand period PdIN is programmable from th to 7 of the demand period If your load variation is a very large peak load more than twice UL the smaller PdIN setting should be used for smoother control 2011 Schneider Electric All rights reserved 23 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 3 PROG Menu Setup 01 2011 Parameters Range Default value LO 10 to 880 k 100 of Full Level 0 Demand Profile mid band with levels Scale L1 to L9 above and L 1 to L 9 below separated by the step size Step 1 to 5 of 40 k Level 0 Demand Profile step size Sets the spacing of the Profile levels Poles 2 4 6 8 4 Sets the number of poles of the supply generator to measure its Speed in rpm VA mode selection VA 3d or 3d Arth Set 3d or Arithmetic VA INTEG OLD Profile
23. for automatic operation of circuit breakers through a control contactor Field programmable parameters The key parameters like the PT and CT primary values system type demand control limits date time etc are field programmable through setup This makes the ordering and the installation much simpler and easier Refer to PROG menu Setup on page 17 for more information Field selectable VA Calculation Method The EM3460 smart demand controller enables the user to select a VA calculation method between 3d default and arithmetic in the field through setup Refer to PROG menu Setup on page 17 for more information The VA calculation methods are explained in the following table 6 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 1 EM3460 Smart Demand Controller Product Description Table 1 2 VA calculation method VA function display in setup Formula Other Names Suited application 3d default SW12 XVAR1 5D12 U Apparent Best All round Vectors Arth VSV1 A1 Arithmetic Good under low unbalance Time of Use TOU This section is applicable only for EM3460 smart demand controller with a RS 485 communication port The time of use TOU is a structure where the energy consumption KVAh kWh kVARh at different time intervals user program
24. is no load or from auxiliary fans pumps or other loads when the main load is off In addition the smart demand controller START setting allows the setting of starting current kW or kVA as shown by the LED in full partial setup Full scale of the A VA W Power Factor PF Lock Controls the Integrator and 0 1 2 3 Demand operation levels during leading power factor For non tariff related applications use the default level of 0 0 1 2 3 Port Set Sets the communication parameters Baud Rate 300 to 19 200 Baud Parity Odd Even No Forced 9 bit mode Stop Bits 1 with No Parity 2 Stop Bits 9600 E 1 300 19200 0 E N 9600 E 1 2011 Schneider Electric All rights reserved 21 Contact us at EM3460 Smart Demand Controller Chapter 3 PROG Menu Setup 22 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 01 2011 Parameters Range Default value ID Device identification Address for the smart demand controller Each instrument which is connected to the same communication port of the energy management system should have a different unique Unit ID The instruments respond only to those commands matching its device ID 1 to 247 001 SetCode This allows the authorized User to change his own code The old code needs to be set correctly followed by the new code If your code is 1xxx then after e
25. power PF Power factor systems Neutral to Earth voltage 4 wire only Frequency INTEG Values kVAh kWh KVARh PFavg DM Demand Max DM Maximum demand Pd DM Predicted Demand opare Load Demand Control output Line to neutral voltage Line to star point is computed for 3 wire delta 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com CTD7308 01 2011 EM3460 Smart Demand Controller Chapter 1 EM3460 Smart Demand Controller Product Description Smart Demand Controller Technical Specifications Table 1 6 Technical Specifications Electrical characteristics Sensing 3 Phases Field programmable for 3 Wire or 4 Wire Measurement True RMS Display update All parameters except demand Every one second Demand Every 15 seconds Voltage Input 110 to 440 VAC LL nominal Field Programmable Crest Factor 850 V peak maximum Line to Line 50 VAC Neutral Earth 600 VAC Line to Line Overload 347 VAC Line to Neutral 347 VAC Line to Earth 347 VAC Neutral to Earth Surge 2kv 1 50uS Transient Line Earth PT Primary 0 1 kV to 999 kVAC Field Programmable Current Input Standard 5 A AC nominal Ordering option 1 A AC Crest Factor 10 6 A 2 12A peak Maximum without loss of accuracy Overload 10 A 2 A AC continuous 7 5 A 1 5 A AC without loss of accuracy Surge 25 A 5 A
26. the EM 3460 smart demand controller Ensure that the CT primary rating has been selected so that your normal load variation lies between 40 and 80 of its full scale If your CT is over rated and say only 3 to 10 of its full scale is utilized accuracy suffers Moreover the smart demand controller control settings cannot be programmed for very low values On the other hand if the CT is under rated then you may exceed its full scale and burn out both the CT and the smart demand controller The PT s and CT s must have adequate VA rating to support the burden loading on the secondaries You may want to support the auxiliary supply burden from one of the PTs CT wiring can impose additional burden loading on the CT For example if the CT has a 5 A secondary and the wire resistance is 1 0 Q then the CT has to support an additional burden of 5 VA If the wiring distance from the CT secondary is greater than say two meters then a 5 A CT could get over burdened and give large errors a 1 A CT secondary is recommended The smart demand controller should be conveniently located for connections to the voltage PT and current CT signals the auxiliary supply usually derived from the voltage signals the control relay outputs and most important a good grounding point NOTE 1 The field programmable PT and CT primary settings may be utilized to calibrate out the PT and CT amplitude full scale error for improved accuracy NOTE 2 With dual r
27. the way to measure demand for the exported kW or kVA irrespective of having IE Option or not Power Factor Lock Internationally capacitive loading is permitted to varying extents in tariff metering This is done by locking the accumulation of selected energy parameters while the load power is capacitive The EM3460 smart demand controller handles this situation with power factor PF lock In the partial setup after start 9o the display shows PF lock It displays PF Loc 0 where 0 is the default Locking Level The different levels and their effects are explained below The levels can be changed using the partial setup procedure The locking levels and their effects are 0 No lock 1 kVARh is locked 2 kVARh and kVAh are locked 3 kVARh kVAh and DM KVA are locked If the smart demand controller is not connected with tariff related measurements then a lock level of 0 is recommended In tariff related applications the local electricity supply authority will provide the current regulations With reference to the figure A 1 fur quadrant polarities the effect of locking on each of the above parameters is e kVARh is accumulated only for quadrant Q1 and Q3 e KVAh KVA is clamped to kW whereas normally KVA gt kW while the system is in Q4 or Q2 for accumulating kVAh 56 O 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com
28. 1 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com Conzerv is either trademark or registered trademark of Schneider Electric Electrical equipment should be installed operated serviced and maintained only by qualified personnel No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material 2011 Schneider Electric All Rights Reserved SEI EM3460UM 0111 V01 d06
29. A 70E e Only qualified electrical workers should install this equipment Such work should be performed only after reading this entire set of instructions e f the equipment is not used in a manner specified by the manufacturer the protection provided by the equipment may be impaired e NEVER work alone e Before performing visual inspections tests or maintenance on this equipment disconnect all sources of electric power Assume that all circuits are live until they have been completely de energized tested and tagged Pay particular attention to the design of the power system Consider all sources of power including the possibility of back feeding e Turn off all power supplying the smart demand controller and the equipment in which it is installed before working on it e Always use a properly rated voltage sensing device to confirm that all power is off e Before closing all covers and doors carefully inspect the work area for tools and objects that may have been left inside the equipment e Use caution while removing or installing panels so that they do not extend into the energized bus avoid handling the panels which could cause personal injury e The successful operation of this equipment depends upon proper handling installation and operation Neglecting fundamental installation requirements may lead to personal injury as well as damage to electrical equipment or other property e NEVER bypass external fusing e NEVER short t
30. Controller Chapter 4 Installation 42 91 9971138071 contactus kmindustrialcorp com CTD7308 01 2011 Figure 4 6 Single phase 2 wire LT systems with direct voltage connections voltages less than 340 VACL N Star No PTs amp 1CT Measurement mode Star 3E Auxiliary power supply Signal mode 4V 3A ac 240v or 110v NO NC c NO NC Li L2 E AF AUXILIARY an PdDM gt UL DM gt UL RESTORE PE SUPPLY P Rating ac 240V 3A dc 24V 2A N Use External Spark Quench ac EM 3460 CONTROL OUTPUTS 50 60 Hz A Ensure Surge Suppressor is fitted before connecting Aux Supply See Schneider CAUTION Suny dayrame EM 3460 conr oami o Smart Demand controller Model i A Acc Class Version SI No Options RS 485 PORT Vin 110 415VLL ac 1 2 3 4 CURRENT INPUT ac A V1 HWI d 7 d A3 L CT shorting EARTH block Panel Ground NOTE 1 With a direct voltage connection no PT s Programme Vsec Vpri Typically Vpri 0 415kv Vsec 415v NOTE 2 For V and A the Phase 1 value should be viewed Vavg and Ah INTEG will be 1 3 of the correct value All the remaining parameters will be measured correctly 2011 Schneider Electric All rights reserved http kmindustrialcorp com Contact us at CTD7308 01 2011 2011 Schneider Electric All rights reserved 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller Chap
31. IVE COUNTS L 3 1150 127 L 8 900 1352 L 9 850 1379 Total 1440 The following example explains demand control and optimization using demand profile of the smart demand controller e Consider that the present upper limit UL is LO and from the table above mentioned the value is 1300 kVA e This sample demand profile shows that 35 demands have crossed the UL causing almost as many loads shedding in that month e Total demand gives approximately one month with 30 min demand period The UL value of 1300 kVA probably is unrealistically low and may be causing excessive production losses and rejects due to frequent load shedding e f additional demand can be contracted and the UL is raised to 1350 kVA there will be a dramatic improvement Moreover the time of these top three Demand peaks can easily be pointed out through the HiLo for MD providing a parallel input load scheduling and demand optimization The demand profile provides valuable post facto analysis for setting demand control levels towards demand optimization rather than merely demand control It allows immediate visualization for load shedding effect of different selected UL rather than just providing demand control The profile is not just theoretical numbers since it is the data gathered at your plant for your process patterns All this can be achieved while you safely operate without risk at your pre selected UL CLR t The HiLo and demand profile start d
32. KM INDUSTRIAL CORPORATION Quality Products Prompt Services Trustful Relationships Add 3937 B Behind GB Road Delhi INDIA Web www kmindustrialcorp com SINCE 1989 AL EP ED FAILED SIEMENS Schneider p COOPER Productivity Through Protection OMRON G MorLLER 5 Cutler Hammer HAVELLS KM Industrial Corporation has established itself as a trusted supplier of Electrical Machinery and Industry Goods over a period of last 24 years We supply to various industries including but not limited to Power generation plants Cement Plants Rolling mills Railways Rubber Factories Textile Mills Construction Equipment Manufacturers Oil Refineries Hospitals Hotels and Corporate across the country along with a strong market presence in more than 10 countries including UAE Saudi Arabia India Oman US and Canada We at KMIC assure our clients of committed deliveries and excellent post sales service This way we believe we sell peace of mind and help our clients focus on their core business Most of our clients in various industrial areas in India and Middle East have been associated with us for more than 10 years now Our superior knowledge of products and focus on excellent relationships with clients remains our biggest strength and guiding force in our business We have deep experience of working with big corporates in Oil amp Gas and Construction sector in Middle East We would be gl
33. LD values of the displayed parameter Profile The EM3460 smart demand controller has two different profiles 1 HiLO profile 2 Demand DM profile HiLo Profile e The HiLo profile records the high and low values for MD VA W VAR PF V A and F The HiLo values are H1 highest H2 H3 H4 L4 L3 L2 and L1 lowest e The trend of the one second RMS value of the appropriate parameter is examined for maximum peaks and minima s troughs e Lead Lag and Import Export polarity is ignored even if you have not ordered the IE Option This allows you to make easy magnitude comparisons e For the F profile the average frequency over 20 cycles is used e When the values are high it is possible that there will be minima s recorded when the values were low Therefore it is possible that the H4 reading is less than that of the L4 reading e Once the profile is cleared the profile starts with all zeros Normally H1 and L1 are the first to receive the entries The other values continue to get recorded as and when the trend shows maximum and minima s The H2 H4 L4 L3 and L1 values show zero until sufficient highs and lows have been detected O 2011 Schneider Electric All rights reserved 25 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 3 PROG Menu Setup 01 2011 e A minimum of one hour is required for all the H s and L s of the profile
34. M3460 smart demand controller e During full setup mode only the auxiliary supply must be connected to the smart demand controller The following table explains how to enter the full setup and edit the set parameters Table 3 2 Full setup entry and set parameters editing KJE ow mm The display shows TEST To enter full setup code entry Keep and pressed CODE y is required while powering up the smart demand controller NOTE If you do not know the code or if you want to only view the parameters press w The display shows CODE SET N Press You can now view the parameters t t d The display shows 1000 1000 is the default factory set ae One with blinking 1 code SET Press A HORE NOTE Use and Y to change the code 18 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 3 PROG Menu Setup e L Press io accent the The display shows In the full setup mode by p SUCCESS and then CLR default the display asks to code Y clear the values The values need to be cleared in order to enter into full setup HiLo and DM values are cleared The smart demand The display shows FULL 1 The display shows ERR controller shows the entry SET and then STAR SE 158 if the input signals are to the full setup mode present Disconnect all the wirings except auxiliary c
35. TD7308 01 2011 Error Codes and Corrections The EM3460 smart demand controller has been designed to ensure reliability The smart demand controller has several error correction and recovery features in order to handle severe disturbances In the rare event that it is unable to recover by itself it displays an error message such as Err 151 In case of an acute error such as Err 128 Setup Error the EM 3460 shuts down and the EM 3460 Output Relays are put in the Shed position 1 When the smart demand controller displays an error note down the error number and then press 2 Repeat the same if error prevails 3 Finally power down the smart demand controller and power it up again after two minutes In most cases normal operation begins In some cases where the full recovery is not possible the unit operates with some data loss or with reduced accuracy until it gets serviced 4 f the error still persists carry out a full setup Refer to Full setup on page 18 for more information The following table gives the error code its description and action required when the error code is displayed Table 5 1 Error codes and descriptions Error code Error description Action required on display of error code Err 65 Contact Schneider Electric for service Err 66 Data back up circuit Contact Schneider Electric for service renewal required Approximately four weeks of normal operation remain before data is lost on a
36. UL LL U1 1100k These settings can be accessed only if the L1 1000K TOU table is programmed If not it goes to upto next setup parameter U16 Press Set key to d ctrL y blink display allows the user to configure 16 sets of UL U1 to U16 and LL and gives the permission to allow 1 to 100 next setup parameter U L SI Cfg DM control of full scale TOU UL and LL boundary limits min and max are as same as as Main UL and Main L1 to L16 LL This DM control UL and LL will be 10 to activated as per TOU U L SI Cfg next setup parameter configuration If DM control TOU is not there EM 3460 will activate Main UL and LL 100 of UL Mapping of DM control TOU limits in to TOU S1 E1 01 zones U L SI Cfg Up to ox Yy Zz 91 H8 Where S season x Season Number 00 default O Y Slot name E Week End D Week Day H No TOU holiday y slot number Zz nth set of DM UL and LL control UL and LL For Not available 0 should selected be programmed Max up to 16 Numerical e g value 1 will index UL1 and LL1 programmed 2 S1 D1 03 means UL2 and LL2 3 gives UL3 and LL3 etc configuration s activate U3 and L3 for the first week day slot of Season1 EsLD 0 to 99 of 0 LL Essential Load The smart demand controller allows critical loads like numerically controlled machines which cannot be included in the load shedding exercise The demand control algorithm ensures that this
37. abrasives to clean the smart demand controller e Ensure that the smart demand controller especially the terminal area is free from any liquid e Do not clean the smart demand controller terminal area Only qualified and trained personnel should clean the terminal areas e Before cleaning ensure that all the connections to the smart demand controller are de energized and the terminal screws are tightened properly e Do not dismantle or open the covers of the smart demand controller Failure to follow these instructions will result in death or serious injury Back up Circuit Renewal The EM 3460 smart demand controller data and clock back up component requires renewal typically after 10 years from the date of the first full setup If the operating temperature specifications of the smart demand controller have been grossly exceeded then you need to renew them a bit early If the unit displays Err 66 on power up please contact Schneider Electric for back up circuit renewal See Field service on page 50 for more information on error messages displayed in the smart demand controller Approximately another four weeks of backup under auxiliary supply failure may be possible without loss of data 2011 Schneider Electric All rights reserved 49 Contact us at EM3460 Smart Demand Controller Chapter 5 Maintenance and Servicing Field Service 50 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com C
38. ad to have an association with you For details Visit us at www kmindustrialcorp com 3937 B Behind HDFC Bank G B Road Delhi India 110006 Leading Exporters of Control Panel Accessories Switchgears Contactors Relays MCBs Circuit Breakers Sensors Automation Drives Power Supplies Control Transformers DC Drives Frequency Converters PLCs Electric Motors Timers Rotary Switches Fuses Semiconductor Fuses Luminaires LED Lighting Power capacitors Indicating Lights Push buttons Wires and Cables Cable Lugs Cable Glands Energy Meters Motor Starters Motor Terminal Plates Slip rings All types of Carbons Holders and Brushes Generator Spares Ball Bearings Contact 91 9971138071 91 11 23212528 Email atul lakhotia kmindustrialcorp com Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com Conzerv EM3460 Smart Demand Controller User manual CTD 308 01 2011 Shed Restore pdoM gt UL oO LL Trip DM SpriD 2 Q G U G O Integ ofile iL Pr onzerv CM 3460 Schneider Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com 01 2011 CAI Tale of Contents Chapter 1 EM3460 Smart Demand Controller Product Description xxrnnnnnnnnnnn
39. and S1 S2 Polarities reversed A1 A2 A2 A3 A3 A1 60 Ay Ar Vb 240 47 Contact us at EM3460 Smart Demand Controller Chapter 4 Installation 48 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 01 2011 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 5 Maintenance and Servicing Chapter 5 Maintenance and Servicing This chapter describes information related to maintenance and servicing of your EM3460 smart demand controller The smart demand controller does not contain any user serviceable parts If the smart demand controller requires service contact your local sales representative Do not open the smart demand controller Opening the smart demand controller voids the warranty Maintenance of EM3460 Smart Demand Controller Cleaning the EM3460 Smart Demand Controller e Clean any grime accumulated on the EM3460 smart demand controller front panel using a soft cloth dampened not wet with soap water or a mild detergent e Do not exert excessive pressure over the displays while cleaning A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION OR ARC FLASH e Apply appropriate personal protective equipment PPE and follow safe electrical work practices In the USA see NFPA 70E e Do not use any solvents or
40. ange CTs select the best range for programming Do not change the range thereafter otherwise the smart demand controller will read erroneous values Earth Ground Connection Protection and Shielding e Use a dedicated solid copper wire of at least 14 AWG for best grounding connection e Remove any oxide film at the wire ends using sand paper e Crimp a spade lug for connecting the ground wire reliably to the smart demand controller terminal block e The other end of the ground wire must be tightly bolted to the ground point e The ground point should be selected for hard grounding and minimum errors due to distribution voltage drops e The panel door hinges do not provide a reliable ground path So connect the grounding wire from the smart demand controller directly to the panel frame grounding bolt and not to the panel door 34 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 4 Installation e Alternatively you can use a 40 36 multi strand tinned copper wire e Thick multi strand wire provides the worst grounding for spikes CAUTION HAZARD OF EQUIPMENT DAMAGE The earth terminal of the smart demand controller must be connected to a reliable low impedance earth ground point If this is not done the surge protection in the smart demand controller as well as its electro magnetic shie
41. ates and times are also provided Use O separately reset the HiLo and demand profiles 2011 Schneider Electric All rights reserved 27 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 3 PROG Menu Setup 01 2011 List of Parameters in EM3460 Smart Demand Controller The following table gives the complete list of parameters sub parameters in RMS INTEG OLD functions of the EM3460 smart demand controller Table 3 6 Parameters list for smart demand controller Parameters Sub parameters v FUNC PAR RMS Basic V Vavg ry yb br Ln r y b n r y p Al FUNC LEDs A Aavg r y b n r y p are OFF F freq F Generator RPM Hrs Dy dt mth Hr min sec Power V W V P PE r y b A AR F Demand UL EsLD PdIN MaxDM Max DM DM DM Auto Sync mode Auto DM rtc DM rd tr Rising DM time remaining DM User ud SprLD 28 2011 Schneider Electric All rights reserved ON time Dy dt mth Hr min sec OFF time Dy dt mth Hr min sec In XXXX Intr No of power interruptions in XXX VA r y b W r y b VAR r y b r Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 3 PROG Menu Setup Parameter Sub parameters v FUNC PAR V Vavg A Ah F Favg
42. cription Table 1 4 Keys description CLR Clear e To clear the integrated parameter demand profile demand and error codes PAR Parameter selection e To select the parameter to be displayed e To scroll through the parameters LEDs FUNC Function selection e To select between one of the functions INTG OLD PROFILE and THD e To scroll through the FUNC LEDs SET Enter e To save the values edited in the setup Up e To scroll upwards or view the previous parameter e To decrement the editing value in the setup More details down e To scroll downward through the parameters e To increment the editing value in the setup Auto scroll e To auto scroll between the parameters Refer to Auto scroll on page 10 for more information 2011 Schneider Electric All rights reserved 9 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 1 EM 3460 Smart Demand Controller Product Description 01 2011 Auto scroll e Auto scroll allows you to view a set of parameters sequentially for five seconds without any manual key operation e The auto scroll parameters are factory set The parameters can be changed e The maximum number of parameters that can be set for auto scroll is 16 To view auto scroll parameters 1 Press e The display shows first the auto scroll parameter and the corresponding Parameters LED lights For exam
43. e dual purpose of protection and easy disconnection e ACT shorting block should be installed so that the current inputs can be disconnected without the danger of open circuiting the CT secondary and tripping the protective relays e f the smart demand controller control relays are used then a by pass switch should be installed 2011 Schneider Electric All rights reserved 51 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 5 Maintenance and Servicing 01 2011 e Wiring shall be routed to allow easy disconnection from the smart demand controller The wires should be properly labeled and color coded to allow easy re connection to the serviced smart demand controller For disconnection and removal refer to Chapter 2 Safety precautions on page 15 for more information 52 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 6 RS 485 Communication Chapter 6 RS 485 Communication e This section is meant to assist experienced systems integrators while connecting the EM3460 smart demand controller to a personal computer PC If you are not a Systems Integrator we recommend that you use one it s much more efficient that way The Schneider Electric Energy Management Systems group can provide complete
44. e loads to acceptable level THD Total Harmonic Distortion for Phase wise Voltage V1 V2 V3 and Current A1 A2 and A3 wave forms 2011 Schneider Electric All rights reserved 5 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 1 EM3460 Smart Demand Controller Product Description 01 2011 Where V is the Fundamental and V5 to Van are 2nd to 30 Harmonics Demand Control with Prediction The EM3460 smart demand controller measures Demand DM Maximum demand MD with MD occurrence date and time Profile DM Prediction DM and spare load Output relays and control parameters prd o pp ct Relay outputs The EM3460 smart demand controller has three change over relay outputs which is explained in the following table Table 1 1 Relay outputs Indicates that the load shedding is required RESTORE Indicates that the loads can be restored now The additional load is indicated by SprLD ve PdDM gt UL Indicates that demand is predicted to exceed Upper Limit UL within programmed Prediction Interval PdIN Load shedding by the amount shown by SprLD ve is necessary to keep demand within the programmed Upper Limit UL Alternatively transfer excess load to an in house generator The Prediction Interval PdIN provides valuable advance notice for this operation These relay outputs can be wired to remote annunciators or can be used
45. e the energy consumption at different time intervals as per the user requirements In addition to this each time slot can have separate demand UL and LL Q 5 How to configure TOU setup A 5 TOU is enabled at factory TOU tariff timings sub integrator configuration can be done by PCTOU Setup Utility v1 1 Contact your nearest Schneider Electric representative for details DM control limit UL and LL configuration can be done either through PC or front panel keys Q 6 When will we have to redo the TOU setup Or when will the TOU setup expire A 6 The TOU setup has to be reconfigured when 1 The electricity board changes its TOU tariff timings and tariff 2 The public holidays have local holidays like diwali dasara etc 2011 Schneider Electric All rights reserved 61 Contact us at EM3460 Smart Demand Controller 91 9971138071 contactus kmindustrialcorp com CTD7308 01 2011 Appendix C Frequently Asked Questions 62 Q 7 When TOU is active does the auto reset feature clear all the nine INTEG s A 7 Yes Q 8 How is the auto reset feature is enabled and configured A 8 Auto reset is enabled at factory Configuration of date and time of auto reset of INTEG is done by PC TOU Setup Utility v1 1 Win98 Q 9 When and how will the integrator overflow A 9 The smart demand controller accumulates energy run hours outages and other accumulated values in an integrator If the integrator is not manually clear
46. ed it overflows after some months Schneider Electric CONZERV s energy management system software reports automatically take this into account so energy management system users need not worry Whenever the INTEG is cleared whether manually or automatically its contents are transferred to the OLD register for your convenience However OLD will contain only one set of values OLD is not useful once you have energy management system Q 10 Explain how the integrator will overflow A 10 The first point to understand is that the Integrator operates as a block This means that if any one of the various accumulated values overflows then the entire INTEG block will be automatically cleared and transferred to OLD This is done to maintain matched values for accurate energy management system reports as well as for coordinated manual readings Among the parameters most likely to overflow three are significant F avg avg frequency Vavg voltage avg and VAh as they attain the highest values first The others Wh VARh Ah Pfavg are usually smaller and do not trigger the overflow This allows for simplification in the understanding of the overflow interval as explained below The following shows the pattern of conditions causing INTEG overflow As explained earlier you will notice that the Voltage inputs to the Frequency are significant INTEG overflow interval Number of Days Table C 1 INTEG overflow http kmindustrialcorp com
47. emand Controller 01 2011 Appendix C Frequently Asked Questions Appendix C Frequently Asked Questions Q 1 What is the advantage of implementing a time of use TOU system A 1 TOU helps the power utility company optimize the consumption throughout the day and night Due to higher rates at peak hours and lower rates at off peak hours the consumers will try to reschedule their processes to off peak hours to reduce the power costs This in turn helps the utility to reduce the overload at peak hours and reduce the wastage of power during the off peak hours Q 2 What are all options available in the TOU feature A 2 e n a year maximum six seasons and 10 public holidays e n a season maximum three weekends rest as week days e In a day maximum eight tariff timings and eight sub integrators e Separate MD registers for different time slots and also separate demand UL and LL for the different time slots Q 3 What is an Integrator A 3 An Integrator is a register in which all the integrated energy and time parameters like VAh Wh VARh Ah PF avg Vavg Favg Run Hours maximum demand PF etc are accumulated or stored Q 4 How many integrators are available in EM3460 smart demand controller with TOU A 4 The smart demand controller with the TOU feature has total of nine integrators One main integrator which runs for a day long stores the sum of all eight sub integrators These sub integrators are configured to stor
48. eters and clear the integrator profiler etc The smart demand controller has three different types of setup modes 1 Full setup mode Programming the parameters before installing the smart demand controller 2 Partial setup mode Programming the parameters periodically during operation 3 View setup mode In this mode you can only view the setup parameters Programming the Password SET CLR All the actions performed by and require a password entry to avoid any unauthorized use The is used for set up The HiLo profile or the demand profile is used to clear the integrator There are four different levels of passwords 1xxx 2xxx 3xxx and 4xxx The xxx in each password is an independent number from 000 to 999 and can be changed periodically by its authorized user The 1xxx level password is normally allocated to the supervisor The supervisor assigns the other level passwords to the different shift in charges The supervisor can change these passwords even he she does not know the full password The following table explains the password access levels for the different setups Table 3 1 Password access levels for different setups Password PF lock LO Step hrs SetCode own code SetCode all codes CLR INTEG profile O 2011 Schneider Electric All rights reserved 17 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308
49. he secondary of a PT e NEVER open circuit a CT use the shorting block to short circuit the leads of the CT before removing the connection from the smart demand controller e Before performing Dielectric Hi Pot or Megger testing on any equipment in which the smart demand controller is installed disconnect all input and output wires to the smart demand controller High voltage testing may damage electronic components in the smart demand controller e During the normal operation of this equipment hazardous voltages might be present at the rear terminals which can cause severe injury or death High voltages are likely to be present even after the smart demand controller has been switched off e Ensure proper grounding for the smart demand controller Failure to follow these instructions will result in death or serious injury O 2011 Schneider Electric All rights reserved 15 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 2 Safety Precautions 01 2011 16 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 3 PROG Menu Setup Chapter 3 PROG Menu Setup This chapter explains how to set up the EM3460 smart demand controller program the password system view the different smart demand controller param
50. in phase sequence 2 In case of interchange between two current signals then they will show 120 120 or 240 3 If the polarity 81 S2 of any current signal is reversed then it will show an additional shift of 180 In combination with Error 2 above the affected current phase angle will be around 60 or 60 The error often occurring on all three current signals can be detected with the recommended minimum level of resistive loading See the example that follows Before proceeding any error in the wiring must be corrected now 2011 Schneider Electric All rights reserved 45 Contact us at EM3460 Smart Demand Controller Chapter 4 Installation 46 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 01 2011 NOTE 1 The actual readings may show small variations say 5 depending upon the unbalances in the system Current phase angles will show additional variations depending on the phase wise power factor NOTE 2 If you have programmed your EM 3460 Setup for Delta 3V2A no A2 current signal ignore the A2 Phase Angle since it is computed vectorially from A1 and A3 and does not need to be separately corrected NOTE 3 The current phase angles are given for forward flow of kW import by the consumer For reverse flow export by consumer the angles will be 180 instead of 0 NOTE 4 The smart demand controller power kW reading polarity is positive for forward flow im
51. ld will not operate Failure to follow this instruction will result in equipment damage Auxiliary Supply Control Power Connections The smart demand controller requires a single phase AC 50 60 Hz auxiliary power supply to supply power to its electronic circuitry There are two auxiliary supply terminals L1 and L2 The live hot wire goes to the L1 terminal Before any other connections are made complete the full setup procedure with only the auxiliary supply connection e Burden 5 VA Max 240 V or 110 V AC 50 60 Hz e For 440 V LT systems Order the smart demand controller with a standard 240 VAC supply that can be tapped from line and neutral e For 110 V HT systems Order the 110 V auxiliary supply option The 110 VAC supply can be tapped directly from one 110 V PT secondary NOTE 1 The auxiliary power supply must be derived from the voltage signals NOTE 2 If you have a 440 V three wire delta system and a reliable neutral is not available a 440 V 240 V supply transformer should be used to provide the standard 240 V auxiliary supply Such a transformer may be ordered from Schneider Electric Contact your Schneider Electric representative for availability CAUTION HAZARD OF EQUIPMENT DAMAGE Do not feed the auxiliary supply terminals of the smart demand controller with a voltage greater than the rating marked on the label Failure to follow this instruction will result in permanent equipment damage 2011 Sch
52. mable can be stored in separate registers TOU is very useful where the power tariff changes with time of consumption TOU helps the power utility company to optimize the consumption throughout the day and night Due to higher rates at peak hours and lower rates at off peak hours the consumers will try to reschedule their processes to off peak hours to reduce the power costs This in turn helps the utility to reduce the overload at peak hours and the wastage of power during the off peak hours Table 1 3 Time of use TOU options available in the smart demand controller TOU options available EM3460 IE amp EM3460 TOU option Enable At factory TOU set up through setup utility ConPAD TOU tariff timings and DM control limits at regional service center sales TOU set up through front panel DM control limits Energy TOU 9 INTG 9 Max DM REGs Demand Control TOU Max 8 UL and LL per day selectable from predefined 16 sets of UL amp LL Maximum number of non overlapping 6 seasons per year Maximum number of non overlapping tariff 8 time zones per day 2011 Schneider Electric All rights reserved 7 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 1 EM 3460 Smart Demand Controller Product Description 01 2011 TOU options available EM3460 IE amp EM3460 Maximum number of INTG 1 24 hrs Main INTEG 8 TOU
53. neider Electric All rights reserved 35 Contact us at EM3460 Smart Demand Controller Chapter 4 Installation 36 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 01 2011 Surge Suppressor Spark Quench An external surge suppressor an MOV is supplied to suit your smart demand controller operating voltage 110 V 240 V This must be firmly fitted at the smart demand controller auxiliary supply terminals in parallel with auxiliary supply wiring See Figure 4 1 Fuse and surge suppressor at smart demand controller aux supply terminals Please ensure that a series fuse has been provided in the auxiliary supply The surge suppressor self destructs shorts to protect the smart demand controller when the transients are above their ratings Replacement of surge suppressor is not covered under warranty and must be done by the user to ensure continued operation Figure 4 1 Fuse and surge suppressor at smart demand controller aux supply terminals Li L2 AUXILIARY SUPPLY e Surge Suppressor MOV for Auxiliary Supply Voltage Signal Connections There are four voltage input terminals marked as V1 V2 V3 and VN Any unused voltage input terminals must be connected to ground and must not be left open Refer to Connection diagrams on page 38 for more information e Field programmable PT primary range 0 1 to 999 KVAG L L e Field programmable PT secondary range 100 to 600 VAC L L
54. nnnnnnnnnennnnnnennnnnnnennnnnnennnnnnennnn 5 MO Ge deg WR ERR D Fe ne eic n T D Power Qualty ANAIVSIS EEE 5 Demand Control with eles 6 ROLY MN 6 Field programmable parameters eee e ee D Field selectable VA Calculation Method 6 ME FVN 7 PATO TT 8 FAEN 8 FI T 8 Fl PvP 11 Parameters with EM3460 Smart Demand Controller sese eee eee 12 Smart Demand Controller Technical Specifications cs eee eee eee e 13 Chapter 2 Safety Precautions cuccescsvecoudivenze Eius Lo vv EbcEba dome FE eeoa aeeoea oeeo nnan nnnm aeeoea s eaeoe neee 15 Chapter 3 PROG Menu Setup saved den 17 Programming he Password Emme 17 Sd Ts ee ERE RENE RENEE 18 EE 18 FN 20 Uii NN 21 UMN 21 NES QPR 24 INTE E 24 OUD Ae EE NE N E E E A E R 29 0 EEE EE ER 9 25 List of Parameters in EM3460 Smart Demand Controller sse eee 28 TOTO iru Mec 31 Mechanical Tense 31 UO CANON PTT m 31 116101 NC PEER EEE E E TAA 33 Jeu yezhse REE T S 34 UN 34 O 2011 Schneider Electric All rights reserved 3 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com Table of Contents o 0112011 Chapter 5 Maintenance and SN 49 Maintenance of EM3460 Smart Demand Controller sese 49 Cleaning the EM3460
55. ntering your old code your new code may be 1xxx 2xxx 3xxx or 4xxx code see Programming the password on page 17 for more information This allows you to change and re assign the other User s codes without knowing them 1000 to 4999 Old xxx New Xxx 000 UL Main UL Demand control upper limit UL To start with the UL should be set around 90 of contract demand for 1500 kVA contract demand set the UL to 1300 kVA If the peak loads are more than UL then the demand control trip point will be slightly above UL due to the 15 second demand control cycle The UL setting is used only for demand profile generation 1 to 100 1100 K of Full Scale LL Main LL Demand control lower limit LL Should beset roughly to 90 of UL Say 1100kVA This determines the point for restoration of loads NOTE For plants with smaller loads move LL closer to UL The frequent of occurrence of load shedding cycles will be large but the loads shed are likely to be smaller On the other hand if the plants have a few large loads increase the spacing of LL below UL suitably 10 to 99 1000 K of UL 2011 Schneider Electric All rights reserved Contact us at CTD7308 01 2011 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller Chapter 3 PROG Menu Setup Parameters Range Default value DM control TOU settings tou
56. om CTD7308 01 2011 CAUTION HAZARD OF EQUIPMENT DAMAGE e Ensure that the smart demand controller output relay ratings are not exceeded e f these outputs drive the coil of an auxiliary control contactor then the spark quencher supplied with the smart demand controller must be connected in parallel with the contactor coil Otherwise the coil s inductive spikes will burn out the output relays and Schneider Electric s warranty will be void Failure to follow this instruction will result in equipment damage The smart demand controller must be connected to monitor the incoming feeder Also the DM gt UL demand control output should trip the entire load connected to the incoming feeder and not just a partial load Otherwise the demand will continue to rise and you will incur a maximum demand penalty Panel Considerations and Environment The EM3460 smart demand controller is a high precision measuring instrument and its operating environment is of utmost importance For maximum performance the instrument should be mounted in a dry dust free location away from heat sources and strong electromagnetic fields To operate reliably the following conditions must be met Table 4 1 Environmental conditions Storage Temperature 20 to 70 C 4 to 158 F Operating Temperature 0 to 60 C 32 to 140 F ambient Relative Humidity Maximum 95 non condensing The smart demand controller should be separated f
57. ons Display Messages Parity framing amp overrun errors 0 Break Error b Tx or Rx Buffer Overflow o Invalid Unit id u CRC check error Eos Illegal Data Address A Communication Illegal Function F Rx r Tx aa 54 2011 Schneider Electric All rights reserved Contact us at CTD7308 01 2011 91 9971138071 contactus kmindustrialcorp com EM3460 Smart Demand Controller Appendix A Four Quadrant Operation Appendix A Four Quadrant Operation http kmindustrialcorp com The EM 3460 carries out true four quadrant measurements for power parameters KVA KW KVAR PF The polarities of these quantities are shown below Figure A 1 Four quadrant polarities LINE LOAD REVERSE j FORWARD lt EXPORT v Ala Nes IMPORT gt e POWER s FLOW PF 0 kVAR kVARh PF LEAD PF LAG Capacitive Inductive 90t0180 EXPORT OF IMPORT OF ENERGY ENERGY kWh REVERSE kWh FORWARD FLOW FLOW ee PF LAG PF LEAD Inductive Capacitive 180t0270 270t0360 e The demand computation of the EM3460 smart demand controller is locked during reverse flow export by consumer of power e i e the demand is computed only for instants of forward flow of power kW and is indicative of the peak loading by the consumer for which billing is done Reverse flow export of power is not integrated e f power flow is constantly re
58. ontrol power wiring The display shows NO SET if the code is failed to enter In both these cases repeat the Procedure starting with step 1 U Press to clear The INTEG old profile DM E G Eg change the system type to DELTA 2E from default STAR 3E the Eg change the system type to DELTA 2E from default STAR 3E type to DELTA 2E from default STAR 3E SET The display shows blinking This indicates that now the i STAR 3E value can be changed MORE The display shows blinking DELTA 2E SET The display shows Press to accept the DELTA 2E new value If you want to change the MORE other setting press V and perform the above mentioned steps Press V continuously The display shows DONE until DONE Y is displayed Y with blinking Y The display shows STORE Y with blinking Y t th The display shows O save INE NEW STORED and exits from the setup SET Press values The smart demand The display shows 0 000 The value shown is of RMS controller exits from the FUNC setup mode and enters the M een ee run mode and V to view all the other parameters If you do not want to save the new value press Y after step 11 The display shows DONE N Press The new value is not saved In order to edit the values repeat the procedure starting with step The settings programmed in the full setup mode can be viewed when the smart demand controller is operating but cannot be changed
59. ple if maximum demand is the first auto scroll parameter then the MaxDM LED is lit 2 Press e The display shows the second auto scroll parameter and the corresponding Parameters LED lights For example if demand is the second auto scroll parameter then the DM LED is lit 3 Repeat the above steps for the remaining auto scroll parameters To enable auto scroll mode Press 9 continuously in the user mode The display shows AUTO and scrolls through the auto scroll parameters To remove parameters from auto scroll list 1 Setthe smart demand controller in auto scroll mode as explained above 2 Press whenever the parameter you do not want to be in the list is displayed The parameters not required in the list are removed after displaying its serial number 3 The smart demand controller exits from the auto scroll mode and enters user mode once the parameters are removed from the list This enables you to insert any other desired parameter in place of the removed parameter Display messages description Table 1 5 Description of the display messages NULL e e l NULL is displayed when is pressed before programming the parameters in the auto scroll parameters list FULL FULL is displayed when you try to program more than 16 parameters in the auto scroll parameters list AUTO AUTO indicates the auto scroll mode USER is displayed when the or V is pressed in auto scroll mode The display comes out of the auto scroll mode
60. port by consumer and negative for reverse flow export by consumer NOTE 5 For integration of exported energy the import export IE option is required The smart demand controller demand computation locks out reverse flow export by consumer of power both with and without the IE Option See Appendix A Four quadrant operation on page 55 for more information An Example Two troublesome wiring errors are used to illustrate Phase Angle analysis with your EM 3460 Figure 4 8 With correct connections Va zc sal c 0 0 _ 0 RYB Sequence V1 0 V2 120 V3 240 Vy 1209 15 Ay A O vr Current Vectors A1 0 A2 15 A3 30 30 Vb 240 A Figure 4 9 Error case one Case 1 A1 45 A2 30 A3 60 Symptoms All currents are 30 to 60 A1 A2 A2 3 A3 A1 Current Phases interchanged anti clockwise and S1 S2 Polarities reversed Correction A1 A3 A2 A1 A3 A2 Vb 240 2011 Schneider Electric All rights reserved Contact us at CTD7308 01 2011 2011 Schneider Electric All rights reserved 91 9971138071 contactus kmindustrialcorp com Figure 4 10 Error case two http kmindustrialcorp com EM3460 Smart Demand Controller Chapter 4 Installation Case 2 Symptoms Correction A1 2909 A2 60 A3 75 All currents are 60 to 90 A1 A3 A2 A1 A3 A2 Current Phases interchanged clockwise
61. r to receive entries e The smart demand controller forces a minimum gap of 15 minutes between any H s or L s of the same parameter to prevent sudden filling up of noise in the profiler e Since the internal resolution of the profiler is greater than that of the display two H events or two L events will appear when the values are steady However the later event replaces the earlier one Figure 3 1 HiLo profile H1 H2 H2 H2 VALUE I B Demand Profile e The demand profile provides the cumulative frequency histogram of demand values e The profile generates nine levels above and below the programmed level 0 at the spacing programmed by the step size in the setup menu e At every demand interval choices 1 to 30 minutes the highest demand value in the interval is compared with the 19 Levels A count of levels where the demand value has exceeded is maintained against each level Thus the total count of demands compared is also maintained Table 3 5 Demand profile LEVEL DEMAND kVA CUMULATIVE COUNTS L9 1750 0 L8 1700 0 L3 1450 0 L2 1400 3 L1 1350 16 LO 1300 35 L 1 1250 39 L 2 1200 13 26 O 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 3 PROG Menu Setup LEVEL DEMAND kVA CUMULAT
62. rom other power equipment and sufficient space must be provided all around for cooling air to rise vertically past the instrument The cooling air temperature must be below the specified operating temperature The panel or housing in which the smart demand controller is mounted should protect it from dust moisture oil corrosive vapors etc The panel doors must ensure easy access to the smart demand controller wiring for trouble shooting Allow clearance if the unit is going to swing out as well as adequate slack in the wiring Allow space for terminal blocks shorting blocks auxiliary contactors and other necessary components 2011 Schneider Electric All rights reserved http kmindustrialcorp com Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 4 Installation Viewing For ease of operation the location should be preferably at or slightly above eye level For viewing comfort minimize glare and reflections from strong light sources Mounting Before mounting and wiring the full setup procedure should have been completed The EM3460 smart demand controller is panel mountable and the specifications are given in the following table Table 4 2 Mounting specifications Panel cut out 186 5 mm w x 138 mm h DIN 43700 and IS 2419 1979 Panel thickness 0 5 to 4 0 mm Instrumental bezel dimension 192
63. rs for comprehensive load management in 3 phase commercial and industrial applications This chapter contains the product description features etc The remaining chapters explain the installation and setup of the smart demand controller Schneider Electric stands behind your EM3460 smart demand controller with complete user support and service Intended use The EM3460 smart demand controller is designed for use in industrial and commercial installations by trained and qualified professionals not for domestic use Features and Benefits The EM3460 smart demand controller offers comprehensive power and energy monitoring at the feeders and individual loads The features and benefits are explained in the following sections Power Quality Analysis The EM3460 smart demand controller gives the power quality measurement parameters The power quality parameters measured are total harmonic distortion THD for V1 V2 V3 A1 A2 and A3 waveforms The THD readings are important as the usage of the thyristor controlled non linear load in the circuit have increased The high THD readings greater than 10 approximately depending on any governing laws and your equipment specifications warn about the over heated motors and impending damage to the equipments like power factor PF correction capacitors even the neutral wiring etc which are not rated for high harmonic currents Proper filtering reduces the harmonics generated from th
64. s not taken the smart demand controller DM gt UL demand control output activates This takes place at the next 15 second demand update after your demand exceeds your programmed upper limit If the DM gt UL output is used for automatic tripping then it must be wired up to trip the entire load connected to your incoming feeder and not just a partial load If you do not trip your total load immediately the demand will continue to rise and you will incur a demand penalty Wiring Cross check Phase Angle Analysis e 3 phase electrical wiring requires special attention for the correct identification of the voltage and current signal phases as well as current signal polarity S1 S2 e Any error either during installation or any re wiring will give wrong readings on your instrumentation and possibly cause damage to rotating machinery e Wiring errors are difficult to detect as the wrong readings are often close to your expectation e The phase sequence errors are not evident from the power or energy readings except in the exchange of two element Wry and Wby readings e The EM3460 smart demand controller has a built in phase analyzer to show fundamental V1 V2 V3 A1 A2 and A3 vector phase angles e After completing the setup and wiring run the smart demand controller and view these phase angle readings for an instant verification of correct signal connections Press until V or A LED lights Press the v key repeatedl
65. st be in series and voltage inputs must be in parallel e Voltages up to 440 VAC LL 250 VLN with 2596 overload capability up to a maximum of 600 VAC LL 330v L N may be connected directly to the EM3460 smart demand controller voltage inputs Voltages greater than this typically HT systems must be connected through potential transformers PT s The smart demand controller allows field programming of both the PT primary and PT secondary voltages With direct voltage connection no PT s program Vsec Vpri Typically Vpri 0 415 kV and Vsec 415 V for Asia e Current inputs must be connected through CTs The CT secondary may be 1A or 5 A So select the smart demand controller current input accordingly at the time of ordering See Current Signal Connections on page 36 for more information e For safety ground the PT and CT secondaries 2011 Schneider Electric All rights reserved http kmindustrialcorp com Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 4 Installation Figure 4 3 3 phase 3 wire delta HT systems with 2 PTs and 2 CTs Delta 2PTs amp 2CTs Measurement mode Delta 2E Signal mode 3V 2A Auxiliary power supply ac 110v NO NC C NO NC C NC E T 13 KS 4 id AUXILIARY PdDM UL DM gt UL RESTORE R suPPLY P Rating ac 240V 3A dc 24V 2A A Use External Spark Quench ac EM 3460 CONTROL
66. ter 4 Installation Figure 4 7 Demand control output connections LOAD SHED FULL SHUT DOWN RESTORE To Load and incomer CB Re closing coil To Load CB Trip coil To incomer CB Trip coil Rating ac 240V 3A dc 24V 2A Use External Spark Quench EM 3460 CONTROL OUTPUTS FULL LOAD SHED SHUT DOWN RESTORE To incomer CB Trip coil Annunciation Lamp Red Annunciation Lamp Green y H RESTORE PdDM gt UL DM gt UL Rating ac 240V 3A dc 24V 2A Use External Spark Quench EM 3460 CONTROL OUTPUTS Auxiliary Control Contactor Max Coil rating Making 60va Holding 15va SQ Spark Quencher ac 240v or 110v AUXILIARY H PdDM gt UL DM gt UL RESTORE Bp surre 50 60 Hz Incandescent lamp Load 15W max surge 150w No spark Quencher SQ Spark Quencher ac 240v or 110v L1 L2 AUXILIARY KE SUPPLY sE ac 50 60 Hz 43 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 4 Installation 01 2011 Annunciation To Circuit breaker coil Normal ON Load Relay Bypass switches HH AF The EM3460 smart demand controller must monitor the incoming feeder J Auxiliary control contactor If adequate load peak management action commensurate with the predicted demand control output and negative spare load warnings i
67. uxiliary supply failure Err 128 Fatal setup error Repeat full setup System will restart with all data cleared Err 131 Calibration out of CLR specification Press to acknowledge the error and continue operation with reduced accuracy of up to 296 Contact Schneider Electric at the earliest for re calibration Err 129 133 Non recoverable CLR integrator error to acknowledge the error and clear the integrator Err 134 Non recoverable CLR integrator Error to acknowledge the error and clear the old register only Err 135 Non recoverable profile CLR genap to acknowledge the error and clear the profiles 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 5 Maintenance and Servicing Error code Error description Action required on display of error code Err 150 Improper selection of Re enter the full setup menu and correct electrical system the first two Settings Star Delta 4V3A 3V3A Err 151 153 Sampling short cycle Contact Schneider Electric for service error and re calibration and This error may occur very rarely under Err 162 165 Rana pba severe disturbance or if operated at temperature extremes If this occurs very frequently even under proper operating conditions then loss of data reduced accuracy and possible damage are
68. verse export by consumer then the demand registered will be zero This is based on the direction of flow of real power KW and holds true whether the demand parameters are field programmed for either KVA or kW e The demand of exported kVA or kW can be measured See Import export option for energy on page 56 for more information 2011 Schneider Electric All rights reserved 55 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Appendix A Four Quadrant Operation 01 2011 Energy Parameters The EM3460 smart demand controller distinguishes the direction of power flow KW It integrates energy parameters kVAh kWh kVARh and PF avg only during the forward flow of energy kwh import by the consumer which accurately reflects the billing For example PF avg is the average power factor at which the consumer has imported Energy KWh Import Export Option for Energy If you have ordered the import export IE Option then energy export as well as net kWh kVARh and total kVAh PF Avg readings are additionally available The Power Factor Lock operates as programmed for the Export direction as well NOTE If you have not ordered the IE Option to measure only the reverse flow energy just reverse all three input polarities S1 S2 This will also reverse the forward flow import and the reverse flow export polarities of KW KVAR and PF This is
69. x 144 mm Depth behind bezel 110 mm leave clearance for wires Mounting clamp screws Phillips Star 4 nos Terminal screws Combination Phillips amp slotted head The cut out should be punched with the proper tool and should be free from burrs NOTE Instead of a 186 x 138 mm punch two accurately spaced operations of a 188 x 138 mm punch may be used Before wiring insert the smart demand controller into the cut out from the front Then fasten the four corner clamps from the rear along with the retaining ring While supporting the smart demand controller from the front tighten all four clamp SCrews in a criss cross pattern till all slack is taken up then apply one full turn Do not over tighten A Phillips star head screwdriver such as Taparia 862 in good condition is recommended to avoid damaging the screw heads The same screwdriver may be used for the terminal block O 2011 Schneider Electric All rights reserved 33 Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com EM3460 Smart Demand Controller CTD7308 Chapter 4 Installation 01 2011 Electrical Installation Wiring PT and CT Selections and Wiring Considerations The accuracy of measurement is determined by the accuracy and phase shifts of the PTs and CTs Instrument class 1 or better PTs and CTs are recommended Do not use protection class 10P10 etc CTs they have poor accuracy and phase characteristics to feed
70. y The voltage phase angles are displayed with respect to V1 and the current phase angles are displayed with respect to the corresponding voltage vector e Make sure that you have loads switched on add up to at least 10 of the current full scale and that these loads are resistive Below 1096 your plant characteristics could give you misleading readings For example power factor correction capacitors often remain in circuit and could give you highly misleading current phase angles 2011 Schneider Electric All rights reserved Contact us at 91 9971138071 contactus kmindustrialcorp com http kmindustrialcorp com CTD7308 EM3460 Smart Demand Controller 01 2011 Chapter 4 Installation Table 4 4 Phase angles with correct wiring and resistive unity PF loads RYB Sequence RBY Sequence Remarks v1 0 0 v2 120 240 v3 240 120 A19 0 0 For Unity Power Factor A2 0 0 A3 0 0 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION OR ARC FLASH An incorrect phase sequence will rotate 3 phase motors in the wrong direction as a result damage the machinery and cause serious injury Failure to follow this instruction will result in death or serious injury The following three checks are performed to identify any connection errors 1 If there is an interchange in the voltage phase connection then the 120 and 240 readings will get exchanged This amounts to a reversal

Parameters with EM3460 Smart Demand

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