3. Phase Indications. Units of measurement. kwh. Units of measurement

Transcription

1 EM 349 SS Section Contents 1. Introduction Installation & Operating Instructions 2. Measurement eading Screen 3. Phase Indications 4. Programming 4.1 Password Protection 4.2 Menu selection System Parameter selection screen System type Potential transformer Primary value Potential transformer secondary value transformer Primary value Energy Display on modbus Energy Digit ollover(reset) count Communication Parameter selection screen Setting S 485 aud rate S 485 Parity selection eset Parameter selection screen esetting Parameter elay Output parameter selection screen Pulse Duration (width) selection Pulse rate divisor Quit screen 5. elay Output (Optional). 5.1 Pulse Output 6. S 485 (Modbus) Output 6.1 User assignable Modbus egister 7. Phaser Diagram Three Phase Energy Meter TALE 1: Display Parameter Measured Parameters Active Energy (8 digit counter) Modbus Parameter (Optional) Measured Parameters System System VL1-N(4wire only) VL2-N(4wire only) VL3-N(4wire only) VL1-L2 VL2-L3 VL3-L1 L1 L2 L3 Frequency Active Power (System / Phase (4 wire only) ) eactive Power (System / Phase (4 wire only) ) Apparent Power (System / Phase (4 wire only) ) Power Factor (System / Phase (4 wire only) ) Phase Angle (System / Phase (4 wire only)) Active Energy Apparent Energy Units of measurement Units of measurement Hz Kwatts KVAr KVA Degree kvah 3. Phase Indications VON IEV LED Von (,, ) glowing All three phase (,, ) present LED Von() off & Von(, ) glowing phase absent &, phase present VON IEV Phase sequence error If all the three LEDs Von(,, ) start blinking, it indicates all the three phases are present but phase sequence error has occurred. If phase sequence is -- or -- or -- then it is healthy condition. ut if sequence is -- or -- or any other irregular sequence is connected to to meter then it indicates phase sequence error. VON IEV LED IEV () glowing phase current reverse Installation 8.1 EMC Installation equirements 8.2 Case Dimensions and Panel Cut-out 8.3 Wiring 8.4 Auxiliary Supply 8.5 Fusing 8.6 Earth / Ground Connections Network Wiring 1. Specification 11. Connection for Optional Pulse output / S Measurement eading Screen In normal operation the user is presented with active energy measurement screen. Screen 1 : Active Energy () VON IEV LED Von() off & Von(, ) glowing phase absent &, phase present LED IEV () glowing phase current reverse VON IEV VON IEV 1. Introduction Ultra high brightness LED display. 155_ev.D - / 8 The instrument is a panel mounted 96 x 96mm DIN Quadratic energy meter. It accumulates Active energy, in three phase network. The instrument also measures AC, AC, Frequency, Power, Power factor, Phase Angle, Apparent Energy which can be accessed via Modbus. All voltage & measurements are True MS upto 15th harmonic. VON IEV It can be configured & Programmed at site for the following : PT Primary, PT Secondary 3 phase 3W or 3 Phase 4W system. The front panel has two push buttons through which the user can reset the energy & configure the product. The front panel has Impulse red led, flashing at rate proportional to measured power. Its impulse rate is 36impulses/. Active energy is displayed in 8 digit counter with auto ranging feature. elow given table describes auto ranging with minimum resolution of energy measured in perticular range. When LED glows the energy is displayed in mega watt. Display Format X1 LED Minimum resolution ON ON ON 1 miliwatt 1 miliwatt 1 miliwatt 1 Watt 1 Watt 1 Watt 1 kilowatt 1 kilowatt 1 kilowatt 1 MegaWatt Maximum Active energy count reached is MegaWatt after this counter rollovers to zero and measurement starts from first range. Impulse led on front panel can be used to cross check the energy calibration on site. Its nominal impulse rate is 36 impulses /. VON IEV LED Von() off & Von(, ) glowing phase absent &, phase present VON IEV LED Von(,, ) off,, phase absent LED IEV () glowing phase current reverse VON IEV LED IEV (,, ) glowing,, phase current reverse VON IEV Down Up 1 2

2 A Setup Parameter Screen (Select) SS SEriAL (Select System Parameter) Parameter (Sec 4.2.1) (Sec 4.2.2) ( Serial Communication ) cd (PassWord) reset (eset Parameter) (Sec 4.2.3) Exit from setup Parameter to Main Display rela (Select elay Parameter) (Sec 4.2.4) quit (Exit Menu) (Sec 4.2.5) A VON IEV New / Change Password (*Decimal point indicates that this will be flashing). Down key will scroll the value of the first digit from through to 9, the value will wrap from 9 round to. Up key to advance the operation to the next digit and sets the first digit, in this case to Menu selection System Parameter selection screen. VON IEV This menu screen is used to select the different system Parameter like system type, CT atio, PT atio, Up key allows the user to set Different system parameters. (see section to ) SS (System Type / Network) (Sec ) Add (Modbus ) (Sec ) non (No Parameter), E (Energy), dur ( elay Pulse Duration) (Sec ) down key will advance to Communication selection screen (see section 4.2.2) UP (PT Primary) (Sec ) US (PT Secondary) (Sec ) AP (CT Primary) (Sec ) br (aud ate) (Sec ) Pr (Parity its) (Sec ) Down key (Sec ) rat (Pulse ate Divisor) (Sec ) : UP KE : DOWN KE VON IEV New / Change Password, first digit entered, prompting for second digit. (*Decimal point indicates that this will be flashing). Down key will scroll the value of the second digit from through to 9, the value will wrap from 9 round to. Up key to advance the operation to the next digit and sets the second digit, in this case to Communication Parameter selection screen. VON IEV This menu screen is used to select the different communication parameters like selection, S485 Parity selection, S485 baud rate Up key allows the user to set different Communication parameters (see section to ) A down key will advance to eset parameter Screen. (see section 4.2.3) 4. Programming The following sections comprise step by step procedures for configuring the meter for individual user requirements. To access the set-up screens press and hold the Down and Up Key simultaneously for 5 seconds. This will take the User into the Password Protection Entry Stage (Section 4.1) Password Protection Password protection can be enabled to prevent unauthorised access to set-up screens, by default password protection is not enabled. Password protection is enabled by selecting a four digit number other than, setting a password of disables the password protection. VON IEV VON IEV VON IEV Enter Password, third digit entered, prompt for fourth digit. Use the Down key to scroll the value of the fourth digit from through to 9, the value will wrap from 9 round to. Up key to advance to verification of the password. Enter Password, fourth digit entered, awaiting verification of the password. VON IEV VON IEV New / Change Password, second digit entered, prompting for third digit. (*decimal point indicates that this will be flashing). Down key will scroll the value of the third digit from through to 9, the value will wrap from 9 round to. Up key to advance the operation to the next digit and sets the third digit, in this case to 5 New / Change Password, third digit entered, prompting for fourth digit. (* denotes that decimal point will be flashing). Down key will scroll the value of the fourth digit from through to 9, the value will wrap from 9 round to. Up key to advance the operation to the New Password Confirmed and sets the fourth digit, in this case to eset Parameter selection screen. This menu screen is used to eset the energy parameter. Up key allows the user to eset energy system parameter (see section ) down key will advance to Output Option selection screen (see section 4.2.4) elay Output Parameter selection screen. VON IEV VON IEV This menu screen will allow the user to select different Parameter related to elay Output. Up key allows the user to select & Configuare the relay output option (see section ) down key will advance to Quit screen. (see section 4.2.5) Password confirmed. New Password confirmed. VON IEV VON IEV Pressing Down key will advance to the New / change Password entry stage. Up key will advance to the Menu selection screen. (See section 4.2). VON IEV Down key will return to the New/Change Password. Up key will advances to the Menu selection screen.(see section 4.2) Quit screen. This screen allows user to Quit from Menu. Up key will allow the user to Quit from menu & return to measurement screen. VON IEV 4.2.1) Password Incorrect. VON IEV Enter Password, second digit entered, prompt for third digit. Use the Down key to scroll the value of the third digit from through to 9, the value will wrap from 9 round to. Up key to advance to next digit. VON IEV The unit has not accepted the Password entered. Pressing the " Down" key will return to the Enter Password stage. Up key exits the Password menu and returns operation to the measurement reading mode. 3 4

3 4.2.1 System parameters Selection Potential Transformer secondary Value Energy Display on modbus System Type VON IEV System Type Confirmation This screen is used to set the system type. System type 3 for 3 phase 3 wire & 4 for 3 phase 4 wire system. Up key accepts the present value and advances to the Potential transformer primary value Edit menu (see section ) Potential Transformer Primary Value Down key will enter the system type edit mode and scroll the values through values available. Up key advances to the system type confirmation menu. This screen will only appear following the edit of system type. If system type is to be changed again, Up key sets the displayed value and will advance to Potential Transformer Primary Value Edit menu. (See section ) Down key will return to the system type edit stage by blanking the bottom line of the display The nominal full scale voltage which will be displayed as the L1-N, L2-N and L3-N for a four wire (Ln) system or as L1-2, L2-3 and L3-1 in a three wire(ll) system. This screen enables the user to display the line to neutral and line to line voltages inclusive of any transformer ratios, the values displayed represent the voltage in kilovolts (note the enunciator). Up key accepts the present value and advances to the potential Transformer secondary Value edit menu. (See Section ) Down key will enter the Potential Transformer Primary Value Edit mode. Initially the multiplier must be selected, pressing the Down key will move the decimal point position to the right until it reaches # # #.# after which it will return to #. # # #. Up key accepts the present multiplier (decimal point position) and advances to the potential Transformer primary Digit Edit mode. Potential Transformer primary Digit Edit Down key will scroll the value of the most significant digit from through to 9 unless the presently displayed Potential Transformer Primary Value together with the Transformer Primary Value, previously set, would result in a maximum power of greater than 1 MVA per phase in which case the digit range will be restricted. Up key accepts the present value at the cursor position and advances the cursor to the next less significant digit. Note : the flashing decimal point indicates the cursor position, a steady decimal point will be present to identify the scaling of the number until the cursor position coincides with the steady decimal point position. At this stage the decimal point will flash. When the least significant digit has been set pressing the Potential Transformer Primary Value Confirmation stage. VON IEV VON IEV VON IEV Up key will advance to the Screen showing display of.415 kv i.e. 415 indicating steady decimal point and cursor flashing at the hundreds of volts position. The value must be set to the nominal full scale secondary voltage which will be obtained from the Transformer when the potential transformer(pt)primary is supplied with the voltage defined in potential transformer primary voltage.the ratio of full scale primary to full scale secondary is defined as the transformer ratio. VON IEV Note : the flashing decimal point indicates the cursor position, a steady decimal point will be present to identify the scaling of the number until the cursor position coincides with the steady decimal point position. At this stage the decimal point will flash. When the least significant digit has been set pressing the Up key will advance to the Potential Transformer secondary Value Confirmation stage Transformer Primary Value The nominal Full Scale that will be displayed as the Line currents. This screen enables the user to display the Line currents inclusive of any transformer ratios, the values displayed represent the in. Up key accepts the present value and rollbacks to menu selection screen (See Section 4.2) Down key will enter the Transformer Primary Value Edit mode. This will scroll the value of the most significant digit from through to 9, unless the presently displayed Transformer Primary Value together with the Potential Transformer Primary Value results in a maximum power of greater than 1 MVA in which case the digit range will be restricted, the value will wrap. Example: If primary value of PT is set as 4kV (max value) then primary value of is restricted to 1736A. Up key will advance to the next less significant digit. (* Denotes that decimal point will be flashing). The Maximum Power restriction of 1 MVA refers to % of nominal current and % of nominal voltage, i.e, MVA nominal power per phase. When the least significant digit had been set, pressing the Transformer Primary Value Confirmation stage. Up key accepts the present value and advances to the Transformer Primary Value edit menu. (See Section ) Note that the range of instrument is from 14 to 277V for 239 VL-N. Please refer the table below for different ranges. Down key will enter the Potential Transformer Secondary Value Edit mode. Down key will scroll the value of the most significant digit From available range of PT secondary value Up key accepts the present value at the cursor position and advances the cursor to the next less significant digit. Potential Transformer secondary ranges for various Input s 11V L-L (63.5V L-N) 1 - V L-L (57V - 69V L-N) 23V L-L (133.V L-N) 1-239V L-L (7V - 139V L-N) 415V L-L (239.6V L-N) 24-48V L-L (14V - 277V L-N) VON IEV VON IEV Potential Transformer Secondary Value Confirmation Potential Transformer Secondary Value. If the scaling is not correct, pressing the Down key will return to the Potential Transformer Secondary Value Edit Up key sets the displayed value and will advance to the current Transformer Primary Value (See Section ) Up key will advance to the The minimum value allowed is 1, the value will be forced to 1 if the display contains zero when the Up key is pressed. Transformer Primary Value Confirmation. Transformer Primary Value. This screen enable user to set energy in terms of Wh / KWh / MWh on S 485 Output depending as per the requirement Communication Parameter Selection : Setting : This screen applies to the S 485 output only. This screen allows the user to set S485 parameter for instruments VON IEV VON IEV Pressing Up key accepts the presents value and advances to the Energy digit ollover(reset) count menu (See section ). Down key will enter the Energy Display On Modbus Edit mode and scroll the value through the values 1,2 & 3 wrapping back to 1 1 : Energy In Wh 2 : Energy in KWh 3: Energy in MWh. Up key advances to the Energy Display On Modbus Confirmation menu. Energy Display On Modbus Confirmation. Energy Display On Modbus. Pressing Up key sets the displayed value and will advance to the Energy digit reset count menu. (See section ) Note : Default value is set to 1 i.e. Energy on Modbus will be in terms of Wh/VArh/VAh/Ah resp Energy Digit ollover(reset) count : VON IEV VON IEV VON IEV Down key will enter the Energy Display On Modbus Edit stage. This screen enables user for setting maximum energy count after which energy will rollback to zero depends upon setting of Wh,KWh, & MWh. Up key sets the displayed value and will jump back to the system parameter selection (See Section 4.2.1) Down key will enter the Energy digit reset count edit mode. This will scroll the value of reset count from 7 to 14 for Wh,from 7 to for KWh & from 7 to 9 for MWh. Ex. If energy display on modbus is set Wh & It will set Energy digit count to 1 then energy will reset after 9,999,999,999 & then will rollback to zero. Pressing Up key will advance to Energy digit reset count confirmation screen. Down key will re-enter Energy digit ollover(reset) count edit mode. Up key sets the displayed value and will rollbacks to menu selection screen (see section 4.2). Note : 1) Default value is set to 14 i.e if energy count crosses14 digit it will rollback to zero. 2) Energy displays on modbus is set to (2) & energy digit reset count is set to.energy screen on display will show i.e Energy overflow.when energy crosses the 11 digit count. 3) Energy displays on modbus is set to (3) & energy digit reset count is set to 9.Energy screen on display will show i.e Energy overflow. when energy crosses the 8 digit count. The range of allowable address is 1 to 247. Enter, prompt for first digit. Down key to scroll the value of the first digit Up key to advance to next digit. VON IEV S 485 aud ate : VON IEV VON IEV VON IEV Enter, second digit entered, prompt for third digit Use the Down key to scroll the value of the third digit Enter for third digit. Screen. Up key to advance to confirmation confirmation Screen. This Screen confirms the set by user. Up key to advance to next Screen s485 aud ate (See Section ) Edit mode. Down key will reenter the This screen allows the user to set aud ate of S 485 port. The values displayed on screen are in kbaud.. Pressing Up key accepts the present value and advance to the Parity Selection (See Section ) Down key will enter the aud ate Edit mode and scroll the value through 2.4, 4.8, 9.6, 19.2 and back to 2.4 S 485 aud ate confirmation : Pressing Down key will be re-enter into the. aud ate Edit mode Up key will select the value and advances to the Parity Selection (See Section ) S 485 Parity Selection : This screen allows the user to set Parity & number of stop bits of S 485 port. VON IEV VON IEV Pressing Up key accepts the present value and advance to Menu selection (see section 4.2). Down key will enter the Parity & stop bit Edit mode and scroll the value through odd : odd parity with one stop bit no 1 : no parity with one stop bit no 2 : no parity with two stop bit E : even parity with one stop bit Note :. kv i.e. V L-N for 4W V for 3W L-L VON IEV Potential Transformer Primary Value Confirmation Potential Transformer Primary Value. If the scaling is not correct, pressing the Down key will return to the Potential Transformer Primary Value Edit stage. Up key sets the displayed value and will advance to the Potential Transformer secondary Value (See Section ) 5 VON IEV If the scaling is not correct, Down key will return to the Transformer Primary Value Edit stage with the most significant digit highlighted (associated decimal point flashing). Up key sets the displayed value and will advance to the Energy Display on Modbus menu. (See section ) VON IEV Enter, first digit entered, prompt for second digit Use the Down key to scroll the value of the second digit Up key to advance to next digit. 6 VON IEV S 485 Parity confirmation : Pressing Down key will be re-enter into Parity Edit mode. Up key will set the value. Up key again will jump back to the menu selection screen (see section 4.2).

4 Table 4 : Continued eset Parameter Selection : esetting Parameter The following screens allow the users to reset the all Energy elay output menu Pulse Duration Selection: This screen applies only to the Pulsed output mode of the relay This screen allows the user to set elay energisation time in milliseconds Pulse ate VON IEV VON IEV Pulse Duration Edit. Pressing Up key accepts the present value and advance to pulse rate selection menu (see section ). Down key will enter the Pulse Duration Edit mode and scroll the value through 6, 1, 2 and wrapping back to 6. Up key will select the value and advances to Pulse Duration Confirmation. Pulse Duration Confirmation. Pulse duration. pressing the Down key will re-enter the Pulse Duration Edit mode. Pressing Up key set displayed value and Will advance to pulse rate selection menu (See section ) This screen applies to the elay Output option only. The screen allows user to set the energy pulse rate divisor. Divisor values can be selected through 1,1,1,1. VON IEV VON IEV VON IEV VON IEV eset (None) Pressing Up key advances to menu selection screen (see section 4.2) Down key will enter the eset option mode and scroll through Parameter and wrapping back to None. eset option select, The user has scrolled through to the E Energy value. Pressing Up key will select the value and advance to the eset Energy Confirmation Mode. & resets energy. Integrated Energy at the moment of resetting energy will become zero. eset Energy Confirmation. option mode. Down key will re-enter the eset Pressing Up key will jump back to the menu selection screen (see section 4.2). Pressing Up key accepts the presents value and advances to the Menu Selection Screen (See section ). Down key will enter the Pulse rate divisor Edit mode and scroll the value through the values 1,1,1, 1 wrapping back to 1. Up key advances to the Pulse rate Divisor Confirmation menu. 7 VON IEV 5. elay output (Optional) : 5.1 Pulse Output : TALE 3 : Energy Pulse ate Divisor Pulse rate Divisor Pulse System Power* 1 1per Whr Up to 36W 1per r Up to 36kW per MWhr 1per 1Whr 1per 1r 1per 1MWhr 1per 1Whr 1per 1r 1per 1MWhr 1 per 1Whr Above 36kW Up to 36W Up to 36kW Above 36kW Up to 36W Up to 36kW Above 36kW Up to 36W 1 per 1r Up to 36kW 1per 1MWhr Above 36kW Pulse Duration 6 ms,1 ms or 2 ms Pulse ate Divisor Confirmation. Pulse rate divisor. If the Pulse rate shown is not correct, pressing the Down key will return to the Pulse rate divisor Edit stage by blanking the bottom line of the display. Pressing Up key sets the displayed value and will advance to the elay output Option Menu. (See section 4.2.4) Pulse output is the potential free, very fast acting relay contact which can be used to drive an external mechanical counter for energy measurement. ish EM 349 SS has one pulse output. elay Contact One normally open & one normally closed Pulse Duration * System power = 3 x CT(Primary) x PT(Primary)L-N for 3 Phase 4 Wire System power = oot3 x CT(Primary) x PT(Primary)L-L for 3 Phase 3 Wire 6. S 485 ( Modus ) Output : Meter supports MODUS (S485) TU protocol( 2-wire ). Connection should be made using twisted pair shielded cable. All "A" and "" connections are daisy chained together. The screens should also be connected to the Gnd terminal. To avoid the possibility of loop currents, an Earth connection should be made at one point on the network.loop (ring) topology does not require any termination load. Line topology may or may not require terminating loads depending on the type and length of cable used. The impedance of the termination load should match the impedance of the cable and be at both ends of the line. The cable should be terminated at each end with a ohm (1/4 Watt min.) resistor. S 485 network supports maximum length of 1.2km. Including this meter, a maximum of 32 instruments can be connected in S485 network. The permissible address range for meter is between 1 to 247 for 32 instruments. roadcast Mode (address ) is not allowed. The maximum latency time of an meter is 2ms i.e. this is the amount of time that can pass before the first response character is output. After sending any query through software ( of the Master), it must allow 2ms of time to elapse before assuming that the meter is not going to respond. If slave does not respond within 2 ms, Master can ignore the previous query and can issue fresh query to the slave. The each byte in TU mode has following format: Format of Data ytes Error Checking ytes yte format 1. For Energy Output in Wh 2. For Energy Output in KWh Divisor 1 6ms, 1ms or 2ms Pulse rate Pulse System Power* Up to 36W Up to 36kW Above 36kW 1 per KWhr 1 per 1KWhr 1per 1MWhr 8-bit binary, hexadecimal -9, A-F 2 hexadecimal characters contained in each 8-bit field of the message 4 bytes (32 bits) per parameter. Floating point format ( to IEEE 754) Most significant byte first (Alternative least significant byte first) 2 byte Cyclical edundancy Check (CC) 1 start bit, 8 data bits, least significant bit sent first 1 bit for even/odd parity 1 stop bit if parity is used; 1 or 2 bits if no parity 3. For Energy Output in MWh Divisor 1 Pulse rate Pulse System Power* Up to 36W Up to 36kW Above 36kW 1per MWhr 1per 1MWhr 1per 1GWhr Communication aud ate is user selectable from the front panel between 24, 48, 96, 192 bps. Function code : 3 ead Holding egisters ead content of read /write location ( 4X ) 4 ead input egisters ead content of read only location ( 3X ) 16 Presets Multiple egisters Set the content of read / write locations ( 4X ) Exception Cases : An exception code will be generated when meter receives Modus query with valid parity & error check but which contains some other error ( e.g. Attempt to set floating point variable to an invalid value ) The response generated will be Function code Oed with HEX (8H ). The exception codes are listed below 1 Illegal function The function code is not supported by meter. Illegal Data 3 Illegal Data Value Attempt to access an invalid address or an attempt to read or write part of a floating point value Attempt to set a floating point variable to an invalid value Accessing 3 X register for reading measured values: Two consecutive 16 bit registers represent one parameter. efer table 4 for the addresses of 3X registers (Parameters measured by the instruments). Each parameter is held in the 3X registers. Modbus Code 4 is used to access all parameters. Example : To read parameter, 3 : Start address= 4 (Hex) Number of registers = Note : Number of registers = Number of parameters x 2 Each Query for reading the data must be restricted to 2 parameters or less. Exceeding the 2 parameter limit will cause a Modus exception code to be returned. Query : 4 (Hex) 4(Hex) (Hex) 3 (Hex) A (Hex) Device Function Code Start High Start Low Number of egisters Hi Number of egisters Lo Start High : Most significant 8 bits of starting address of the parameter requested. Start low :Least significant 8 bits of starting address of the parameter requested. esponse: Volt3 (219.25V) Device Function Code yte Count Data egister1 High yte CC Low 4 (Hex) 4 (Hex) 43 (Hex) 5 (Hex) 41 (Hex) 21 (Hex) 6F (Hex) Data egister1 Low yte Data egister2 High yte yte Count : Total number of data bytes received. Data register 1 High yte : Most significant 8 bits of Data register 1 of the parameter requested. Data register 1 Low yte : Least significant 8 bits of Data register 1 of the parameter requested. Data register 2 High yte : Most significant 8 bits of Data register 2 of the parameter requested. Data register 2 Low yte : Least significant 8 bits of Data register 2 of the parameter requested. Table 4 : 3 X register addresses (measured parameters) Data egister2 Low yte Parameter Parameter Modbus Start Hex (egister) High yte 3P 4W No. Low yte 3P 3W A W1 C X W2 E X W3 1 X VA1 X VA2 14 X 33 VA3 16 X VA1 18 X VA2 1A X VA3 1C X PF1 1E X PF2 2 X PF3 22 X Phase Angle 1 24 X Phase Angle 2 26 X Phase Angle 3 28 X CC Low CC High 9 (Hex) CC High 8 Parameter Modbus Start Hex (egister) No. Parameter High yte Low yte 3P 4W 3P 3W Ave 2A Sum 2C Ave 2E Sum Watts Ave Watts Sum VA Ave VA Sum VAr Ave 3A VAr Sum 3C PF Ave 3E PF Sum 4 X Phase Angle Ave Phase Angle Sum 44 X Freq Wh Vah VL 1-2 ( Calculated ) C8 X 33 1 VL 2-3 ( Calculated ) CA X VL 3-1 ( Calculated ) CC X Note : Parameters 1,2,3 are L-N for 3P 4W & L-L for 3P 3W. Note : Active Energy reading received will be in Watt Hours. Note : Apparent Energy reading received will be in VA Hours. Accessing 4 X register for eading & Writing : Each setting is held in the 4X registers.modus code 3 is used to read the current setting and code 16 is used to write/change the setting. efer Table 5 for 4 X egister addresses. Example : eading System type System type : Start address= A (Hex) Number of registers = Note :Number of registers = Number of Parameters x 2 Query : Start High Start Low Number of egisters Hi Number of egisters Lo CC Low CC High Start High : Most significant 8 bits of starting address of the parameter requested. Start low :Least significant 8 bits of starting address of the parameter requested. esponse: System Type ( 3phase 4 wire = 3 ) yte Count Data egister1 High yte Data egister1low yte Data egister2 High yte Data egister2 Low yte CC Low CC High yte Count : Total number of data bytes received. Data register 1 High yte : Most significant 8 bits of Data register 1 of the parameter requested. Data register 1 Low yte : Least significant 8 bits of Data register 1 of the parameter requested. Data register 2 High yte : Most significant 8 bits of Data register 2 of the parameter requested. Data register 2 Low yte : Least significant 8 bits of Data register 2 of the parameter requested. 3 (Hex) A (Hex) (Hex) E4 (Hex) 9 (Hex) 3 (Hex) 4 (Hex) 4 (Hex) 4 (Hex) (Hex) EE (Hex) 27 (Hex)

5 Example : Writing System type System type : Start address= A (Hex) Number of registers = Query:( Change System type to 3phase 3wire = 2 ) yte Count : Total number of data bytes to be transmitted. Data register 1 High yte : Most significant 8 bits of Data register 1 of the parameter requested. Data register 1 Low yte : Least significant 8 bits of Data register 1 of the parameter requested. Data register 2 High yte : Most significant 8 bits of Data register 2 of the parameter requested. Data register 2 Low yte : Least significant 8 bits of Data register 2 of the parameter requested. esponse: Starting Hi Starting Lo Number of egisters Hi Number of egisters Lo yte Count Data egister-1high yte Data egister-1 Low yte Data egister-2 High yte Data egister-2 Low yte CC Low CC High Start High Start Low Number of egisters Hi Number of egisters Lo CC Low CC High 1 (Hex) A(Hex) (Hex) 4 (Hex) 4 (Hex) (Hex) (Hex) (Hex) 66 (Hex) 1 (Hex) 1 (Hex) A(Hex) (Hex) 61 (Hex) CA (Hex) Start High : Most significant 8 bits of starting address of the parameter requested. Start low :Least significant 8 bits of starting address of the parameter requested. Table 5 : 4 X register addresses Parameter Parameter ead / Write Modbus Start Hex (egister) No. High yte Low yte 45 1 Energy Display on Modbus /Wp Sys Sys Sys Type /Wp A Pulse Width /Wp C Energy eset Wp E S 485 Set-up Code /Wp 41 9 Node.. /Wp Pulse Divisor /Wp PT Primary /Wp CT Primary /Wp System Power Energy Digit ollover(reset) count /Wp egister Order/Word Order /Wp PT Secondary /Wp 2C Password /W 46 Explanation for 4 X register : Parameter Description System 49 System 411 System Type 413 Pulse Width of elay 415 eset Energy Counter This address is read only and displays System This address is read only and displays System This address is used to set the System type. Write one of the following value to this address. 2 = 3 Phase 3 Wire 3 = 3 Phase 4 Wire. Writing any other value will return error s485 Set-up Code This address is used to set pulse width of the Pulse output. Write one of the following values to this address: 6 : 6 ms 1 : 1 ms 2 : 2 ms Writing any other value will return error. This address is used to reset the Energy Counter. Write zero value to this register to reset the energy counter. Writing any other value will return an error. This address is used to set the baud rate, Parity, Number of stop bits. efer to Table 6 for details. 41 Node This register address is used to set Device address between 1 to Pulse Divisor This address is used to set pulse divisor of the Pulse output. Write one of the following values to this address: 1 : Divisor 1 1 : Divisor 1 1 : Divisor 1 1 : Divisor 1 & in KWh and MWh divisor will be 1 by default. Writing any other value will return an error. 433 PT Primary This address allows the user to set PT Primary value. The maximum settable value is 4kV (3p4w) / 692.8kV (3p3w) & also depends on the per phase 1MVA estriction of power combined with CT primary. PT primary value should be in terms of voltage for example to set 2kV send 2V. 435 CT Pimary This address allows the user to set CT Primary value. The maximum settable value is 9999 & also depends on the per phase 1MVA estriction of power combined with PT primary 437 Sys Power System Power (ead Only) is the Nominal system power based on the values of Nominal system volts and Nominal system current Energy display on Modbus Energy digit ollover(eset) Count Word Order PT secondary This address is used to set energy display on modbus in Wh,KWh & MWh. Write one of the following value to this address. 1 = Energy in Wh. 2 = Energy in KWh. 3 = Energy in MWh. This address is used to setting maximum energy count after which energy will rollback to zero depends upon setting of Wh,KWh, & MWh. If Energy display on modbus in Wh count will be set in between 7 to 14 or In KWh set in between 7 to & In MWh set in Word Order controls the order in which meter receives or sends floating - point numbers:- normal or reversed register order. In normal mode, the two registers that make up a floating point numbers are sent most significant bytes first. In reversed register mode, the two registers that make up a floating point numbers are sent least significant bytes first. To set the mode, write the value into this registerthe instrument will detect the order used to send this value and set that order for all Modus transaction involving floating point numbers. This address is used to read and write the PT secondary value. ef Table for the range of PT secondary settable values in Section Parameter Description 471 Password This address is used to set & reset the password. Valid ange of Password can be set is ) If password lock is present & if this location is read it will return zero. 2) If Password lock is absent & if this location is read it will return One. 3) If password lock is present & to disable this lock first send valid password to this location then write to this location 4) If password lock is present & to modify 4X parameter first send valid password to this location so that 4X parameter will be accessible for modification. 5) If for in any of the above case invalid password is send then meter will return exceptional error 2. Table 6 : S 485 Set-up Code aud ate Parity Stop it Decimal value 192 NONE 192 NONE 192 EVEN 192 ODD 96 NONE 96 NONE 96 EVEN 96 ODD 48 NONE 48 NONE 48 EVEN 48 ODD 24 NONE 24 NONE 24 EVEN 24 ODD NOTE : Codes not listed in the table above may give rise to unpredictable results including loss of communication. Excise caution when attempting to change mode via direct Modbus writes. 6.1 User Assignable Modbus egisters: The meter contains the 2 user assignable registers in the address range of x2 (3513) to x226 (3551) (see Table 9). Any of the parameter addresses ( 3X register addresses Table 4)) accessible in the instrument can be mapped to these 2 user assignable registers. Parameters (3X registers addresses ) that resides in different locations may be accessed by the single request by re-mapping them to adjacent address in the user assignable registers area. The actual address of the parameters ( 3X registers addresses) which are to be assessed via address x2 to x226 are specified in 4x egister x2 to x213 (see Table 1). Table 9 : User Assignable 3X Data egisters Parameter Modbus Start (Hex) (egister) Number. Assignable egister High yte Low yte Assignable eg Assignable eg Assignable eg Assignable eg Assignable eg Assignable eg 6 A Assignable eg 7 C Assignable eg 8 E Assignable eg Assignable eg Assignable eg Assignable eg Assignable eg Assignable eg 14 1A Assignable eg 15 1C Assignable eg 16 1E Assignable eg Assignable eg Assignable eg Assignable eg Table 1 : User Assignable mapping register ( 4X registers) Parameter Modbus Start (Hex) (egister) Number. Mapping egister High yte Low yte Mapped Add for register #x Mapped Add for register #x Mapped Add for register #x Mapped Add for register #x Mapped Add for register #x Mapped Add for register #xa Mapped Add for register #xc Mapped Add for register #xe Mapped Add for register #x Mapped Add for register #x Mapped Add for register #x14 A Mapped Add for register #x Mapped Add for register #x18 C Mapped Add for register #x1a D Mapped Add for register #x1c E Mapped Add for register #x1e F Mapped Add for register #x Mapped Add for register #x Mapped Add for register #x Mapped Add for register #x26 13 Example : Assigning parameter to user assignable registers To access the voltage2 (3X address x) and Power Factor1 (3X address x1e) through user assignable register assign these addresses to 4x register (Table 1 ) x and x1 respectively. Assigning Query: Starting Hi Starting Lo Number of egisters Hi Number of egisters Lo yte Count Data egister-1high yte Data egister-1 Low yte Data egister-2 High yte Data egister-2 Low yte CC Low CC High 1 (Hex) (Hex) * (Hex)* 4 (Hex) (Hex) 1E (Hex) C (Hex) 7 (Hex) } } 2 * (3X x) Power Factor 1 * (3X x1e) * Note : Parameters should be assigned in Multiple of two i.e. 2,4,6, esponse : Start High Start Low Number of egisters Hi Number of egisters Lo CC Low CC High 1 (Hex) (Hex) (Hex) 4 (Hex) 7 (Hex)

6 eading Parameter data through User Assignable egisters: In assigning query 2 and Power Factor1 parameters were assigned to x 2 and x21(table1) which will point to user assignable 3xregisters x2 and x2 (table9). So to read 2 and PowerFactor1 data reading query should be as below. Query: 7. Phaser Diagram : 8.1 EMC Installation equirements This product has been designed to meet the certification of the EU directives when installed to a good code of practice for EMC in industrial environments, e.g. 9. Connection Diagram 4 (Hex) Capacitive Inductive 1. Screened output and low signal input leads or have provision for fitting F suppression components, such as ferrite absorbers, line filters etc., in the event that F fields cause problems. 9.1 Network Wiring Start High Start Low Number of egisters Hi (Hex) Note: It is good practice to install sensitive electronic instruments that are performing critical functions, in EMC enclosures that protect against electrical interference which could cause a disturbance in function. 2. Avoid routing leads alongside cables and products that are, or could be, a source of interference. 3-PHASE 3-WIE UNALANCED LOAD DIGITAL METEING SSTEM Number of egisters Lo CC Low CC High 4 (Hex) ** F (Hex) 71 (Hex) Start High : Most significant 8 bits of starting address of User assignable register. Start low :Least significant 8 bits of starting address of User assignable register. **Note : Two consecutive 16 bit register represent one parameter. Since two parameters are requested four registers are required Inductive Connections Quadrant Sign of Active Power ( P ) Sign of Sign of eactive Power Power ( Q ) Factor ( PF ) Capacitive Inductive / Capacitive Import 1 + P + Q + L Import 4 + P - Q + C Export 2 - P + Q - C Export 3 - P - Q - L 3. To protect the product against permanent damage, surge transients must be limited to 2kV pk. It is good EMC practice to suppress differential surges to 2kV at the source. The unit has been designed to automatically recover in the event of a high level of transients. In extreme circumstances it may be necessary to temporarily disconnect the auxiliary supply for a period of greater than 5 seconds to restore correct operation. The inputs of these products are designed for connection in to systems via Transformers only, where one side is grounded. 4. ESD precautions must be taken at all times when handling this product. 8.2 Case Dimension and Panel Cut Out L1 L2 L3 N L N AUX SUPPL L O AD esponse : (Volt2 = / Power Factor1 = 1.) Inductive means lags Capacitive means leads mm mm mm 3-PHASE 4-WIE UNALANCED LOAD DIGITAL METEING SSTEM yte count Data egister-1high yte 4 (Hex) 8 (Hex) 43 (Hex) Note : Though meter displays Active power ( P )with + ( Positive sign ) or - ( negative sign ) depending on External CT Connection, Energy ( ) integration will be in done same register irrespective of Import or Export connection mm FONT DISPLA AEA PANEL CUTOUT mm L N AUX SUPPL Data egister-1 Low yte Data egister-2 High yte 5 (Hex) 4E (Hex) } 2 Data MAX PANEL THICKNESS.18,5mm L1 L2 L3 N P1 S1 L O AD Data egister-2 Low yte Data egister-3 High yte Data egister-3 Low yte Data egister-4 High yte Data egister-4 Low yte 4 (Hex) 3F (Hex) 8 (Hex) } Power Factor 1Data 8. Installation Mounting is by four side clamps, slide the side clamps through side slot till side clamp gets firmly locked in a groove (efer fig.) Consideration should be given to the space required behind the instrument to allow for bends in the connection cables. PANEL SLIDE IN THIS DIECTION AND LOCK 8.3 Wiring Input connections are made directly to screw-type terminals with indirect wire pressure. Numbering is clearly marked in the plastic moulding. Choice of cable should meet local regulations. Terminal for both and 2 inputs will accept upto 3mm x 2 diameter cables. Note : It is recommended to use wire with lug for connection with meter. (Starting ) CC Low CC High User Assignable mapping egisters ( 4X egisters Table1 ) 79 (Hex) 3F (Hex) (Starting ) User Assignable Data egisters ( 3X egisters Table 9 ) Meter Front 8.4 Auxiliary Supply Meter should ideally be powered from a dedicated supply, however it may be powered from the signal source, provided the source remains within the limits of the chosen auxiliary voltage. x2 x21 x2 2 (x) Power Factor 1 (x1e) Wh Import (x48) x2 x2 x24 x2 x2 x24 x21 x23 x Fusing It is recommended that all voltage lines are fitted with 1 amp HC fuses. x23 Frequency (x46) x26 x26 x27 As the front of the enclosure conforms to IP54 it is protected from water spray from all directions, additional protection to the panel may be obtained by the use of an optional panel gasket. The terminals at the rear of the product should be protected from liquids. 8.6 Earth/Ground Connections For safety reasons, CT secondary connections should be grounded in accordance with local regulations. x2 x213 1 (x6) VAh (x5) x224 x226 x224 x226 x225 x227 The meter should be mounted in a reasonably stable ambient temperature and where the operating temperature is within the range -1 to 55 C. Vibration should be kept to a minimum and the product should not be mounted where it will be subjected to excessive direct sunlight. To get the data through User assignable egister use following steps: 1) Assign starting addresses(table3) of parameters of interest to a User assignable mapping registers in a sequence in which they are to be accessed (see section Assigning parameter to user assignable registers ) 2) Once the parameters are mapped data can be acquired by using User assignable data register Starting address. i.e to access data of 2, Power factor1,wh import, Frequency send query with starting address x2 with number of register 8 or individually parameters can be accessed for example if current1 to be accessed use starting address x2. (See section eading Parameter data through User Assignable egisters) 11 Caution 1. In the interest of safety and functionality this product must be installed by a qualified engineer, abiding by any local regulations. 2. s dangerous to human life are present at some of the terminal connections of this unit. Ensure that all supplies are de-energised before attempting any connection or disconnection. 3. These products do not have internal fuses therefore external fuses must be used to ensure safety under fault conditions.

7 1. Specification : System 3 Phase 3 Wire / 4 Wire programmable at site Nominal range of use of influence quantities for measurands 5.. % of ated Value 1.. % of ated Value Input frequency ated Value + 1 % 11. Connection for Optional Pulse Output / S 485 Notes : Inputs Temperature to 5 C Nominal input voltage (Three wire and Four wire) 57.7 V to 277V (1V L-L to 48 V L-L) L-N L-N Auxiliary supply voltage Auxiliary supply frequency ated Value + 1 % ated Value + 1 % 11.1 One Pulse Output & S485 Max continuous input voltage Max short duration input voltage Nominal input voltage burden Nominal input current Starting % of ated Value 2 x ated Value (1s application repeated 1 times at 1s intervals).2va approx. per phase 1A O 5A AC rms.4% of Nominal Input Temperature Coefficient (For ated value range of use... 5 C ) Error change due to variation of an influence quantity Display LED Update.5% / C for (5..% of ated Value).5% / C for ( 1..% of ated Value ) 2 * Error allowed for the reference condition applied in the test. 1 digits. Approx. 1 seconds Pulse out S 485 NO NC COM A G Max continuous input current Nominal input current burden System CT primary values % of ated Value.6VA approx. per phase Max short duration current input 2 x ated Value (1s application repeated 5 times at 5 min. intervals) Std. Values upto 4kA (1 or 5 Amp secondaries) Impulse LED Controls User Interface Standards Impulse ate 36 impulses/ Two push buttons S 485 Output Auxiliary Standard nominal Auxillary supply voltages & Frequency 11V AC/5 Hz, 23V AC/5 Hz,38V AC/5 Hz, 1-25V AC- DC, - 48V DC EMC Immunity IEC V/m min-level 3 industrial low level electromagnetic radiation environment IEC a.c. supply voltage tolerance a.c. supply frequency range +2 % / -15 % of ated Value 45 to 66 Hz Safety IP for water & dust IEC 611-1, ear 21 IEC 6529 S 485 A G a.c. supply burden d.c. supply burden Operating Measuring anges 4.5VA 3W 5.. % of ated Value 5.. % of ated Value Isolation Dielectric voltage withstand test between circuits and accessible surfaces Environmental Operating temperature 2.2 kv MS 5 Hz for 1 minute between all electrical circuits -1 to 55 C One Pulse Output Frequency Power Factor Hz.5 Lag Lead Storage temperature elative humidity -2 to +65 C.. 9 % H Warm up time Shock 3 minute (minimum) 15g in 3 planes Pulse out NO NC COM Accuracy +.5 % of range ( % of ated Value ) Vibration Enclosure ( front only ) Hz,.15mm amplitude IP 54 as per IEC Frequency Active Power e- Active Power Apparent Power +.5 % of range ( % of ated Value ).15% of mid frequency +.5 % of range ( % of ated Value ) +.5 % of range ( % of ated Value ) +.5 % of range ( % of ated Value ) Active Energy + 1 % as per IEC Active P.F. (.5 lag lead) Apparant Energy + 1 % Enclosure Style Material Terminals Depth Weight 96mm x 96mm DIN Quadratic Polycarbonate Housing, Self extinguish & non dripping as per UL 94 V- Screw-type terminals < 8 mm.62 kg Approx. Power Factor Angle + 1 % of Unity + 1 % of range Modus ( S 485 ) Option : Protocol Modus ( S 485 ) eference conditions for Accuracy : aud ate 192, 96, 48 or 24 ( Programmable ) eference temperature Input frequency Input waveform 23 C + 2 C 5 or 6Hz + 2% Sinusoidal (distortion factor.5) Parity Odd or Even, with 1 stop bit, Or None with 1 or 2 stop bits The Information contained in these installation instructions is for use only by installers trained to make electrical power installations and is intended to describe the correct method of installation for this product. However, organization has no control over the field conditions which influence product installation. It is the user's responsibility to determine the suitability of the installation method in the user's field conditions. Organization only obligations are those in organization standard Conditions of Sale for this product and in no case will organization be liable for any other incidental, indirect or consequential damages arising from the use or misuse of the products. Auxiliary supply voltage ated Value + 1 % Auxiliary supply frequency ated Value + 1 % Power Factor.5 lag lead 13 14