DW9L 3 Phase Intelligent Energy Coulometer User Manual
Contents
1. enter into next class display press Y Akey change other parameters 3 If the display is Second Class or Third Class press amp Key return to previous display 4 If it is Third Class display press y A Key for value change press YAKey without move it will change the value continues press Key for value saving return to the Second Class display But press Key there will be no value setting save return to the Second Class display directly 5 Press Left Key amp or Right Key gt moving the decimal point br br rH cH Analog Parameter UP Limit Value 5 008 5 50 j br br rL cL Analog Parameter Lower Limit Value 0 000 0 00 i br br ver Utr Analog Unit i e 6 After Modifying the parameters press confirm key ep more than 5 seconds retreat customer menu enter into measuring status Menu Structure and Function Description No Level 1 Display Level 2 Level 3 Description Energy can only be cleared when enter into ry mmm Get CLrE Clear Energy Password nnn correct password password 1111 1 System Setting SET CH Function Sheild Code Shield Code DOC If the second digit is 1 i e 010 the value in the menu can be read but not changed KKDW9LEO01 A 0 3 Level 3 Description Lin Network LIn 3 3 3 H To select the input network of the measured signal InP Ww To set the voltage signal ratio L 1 2 SignalInput Inp PE Voltage tra2. i Start address Start address Data byte Data byte CRC code CRC code Meter address Function code Highiblt Low bit length High bit length Low bit Low bit high bit 0x01 0x03 0x00 0x00 0x00 0x02 0xC4 0x0B Meter normal answer Read multi register 1 2 3 4 5 6 7 8 9 Meter address Function code Data byte Data 1 Data 1 Data 2 Data 2 CRC code CRC code number High bit Low bit High bit Low bit Low bit high bit 0x01 0x03 0x04 0x00 0x80 0x71 0x43 Ox9E Ox7A Function code abnormal answer For example host request function code is 0x04 Meter abnormal answer Read multi register 1 2 3 4 5 Meter address Function code Error code CRC code Low bit CRC code high bit 0x01 0x84 0x01 0x82 OxCO 2 Write multi register For example Host reads float data HY1 1st alarm hysteresis value 20 5 The address code of HY1 is 0x0001 because HY1 is float data 4 bytes seizes 2 data registers According to IEEE 754 standard the hexadecimal memory code of decimalist float data 20 5 is 0x0000A441 Host request Write multi register 1 2 3 4 5 6 7 8 9 10 11 12 13 Data Data Start Start Data Data1 Data1 Data2 Data2 CRC CRC byte byte address address byte high bit low bit high bit low bit code code length length F High bit igh bit Low bit High bit Low bit length Low bit high bit Meter Function address code 0x01 0x10 0x00 0x01 0x00 0x02 0x04 0x00 0x00 OxA4 0x41 0x88 0
3. output 4mA iter iat etna valus unit H 1 means international standard unit a K means 1000 times of international standard unit 7 Output function 1 Energy pulse DW9L provides the function of 4 quadrant energy calculation 2 energy pulse output and RS485 interface for display and transmit of energy data The energy pulse of optical couple relay wth open collector enables the long distance transmit of active amp reactive energy Remote PC terminal PLC DI On Off output and collector module are applied to collect the pulse of coulometer to enable the energy cumulation calculation Besides this output mode is also the energy accuracy check way National metrology regulations Standard meter pulse tolerance comparison method 1 Electrical characteristic the output of optical couple relay with open collector V lt 48V Iz lt 50mA 2 Pulse constant 7200imp KWh It means The impulse output no is 7200 when the coulometer counts up to 1KWH The point should be emphasized is that the above 1kWh is for the 2nd coil energy Supposed that PT and CT is connected the primary coil energy that 7200 pulse refers to is equal to 1kWh X voltage transform PT X current transform CT 2 DI DO function 2 way S1 S2 be used to remote control Electric ON OFF status 2 DO function be used to control electric devices when using DO function and alarm mode is setted as 0 otherwise DO1 DO2 will be as AL1 AL2 output DO1 DO2 function control value is wr
4. 0 9999 R KKDW9LE01 A 0 5 No Address reflection Variable name Default value Byte length Value range Read Write Remark 14 0x000E Phase current la 2 0 9999 R 15 0x000F Phase current Ib 2 0 9999 R 16 0x0010 Phase current Ic 2 0 9999 R 17 0x0011 Phase A active power Pa 2 0 000 9999 R 18 0x0012 Phase B active power Pb 2 0 0000 9999 R 19 0x0013 Phase C active power Pc 2 0 000 9999 R 20 0x0014 Total active power Ps 2 0 000 9999 R 21 0x0015 Phase A reactive power Qa 2 0 000 9999 R 22 0x0016 Phase B reactive power Qb 2 0 000 9999 R 23 0x0017 Phase C reactive power Qc 2 0 000 9999 R 24 0x0018 Total reactive power Qs 2 0 000 9999 R 25 0x0019 Phase A apparent power VAa 2 0 000 9999 R 26 0x001A Phase B apparent power VAb 2 0 000 9999 R 27 0x001B Phase C apparent power VAc 2 0 000 9999 R 28 0x001C Total apparent power VAs 2 0 000 9999 R 29 0x001D Power factor PFa 2 0 1 0 R 30 0x001E Power factor PFb 2 0 1 0 R 31 0x001F Power factor PFc 2 0 1 0 R 32 0x0020 Total power factor PFs 2 0 1 0 R 33 0x0021 Frequency 2 45 60 R 34 0x0022 KWH 2 0 00 999999 99 R 35 0x0023 KVarH 2 0 00 999999 99 R Reserve 36 0x0050 1st alarm mode Ad1 2 1 0 52 R W 37 0x0051 2nd alarm mode Ad2 2 1 0 52 R W Tiet 38 0x0052 Analog output mode brM 1 1 1 26 R W 39 0x0053 1st alarm value unit 0 1 0 1 R W 40 0x0054 2nd ala
5. DW9L 3 Phase Intelligent Energy Coulometer User Manual Features Measuring Items Voltage Current Active Power Reactive Power Power Factor Frequency etc a totally 28 parameters E og o G Two ON OFF input and output input and output isolation 4 0g og True effective value measuring oa G a i With Programmable Analog output function analog output for Voltage Currnet Active Power fi Pegooogogg Reactive Power Frequency and Power Factor RS485 communication interface Standard Modbus RTU protocol 2 energy pulse output 2 programmable alarm output display program setting input parameters With Power fail memory function for Menu Select Kwh KvarH DW9L INTELL GENTIZED POWER ME TER This model coulometer widely used in Control System SCADA System Energy Management System Transformeer Substation Automation Distributing Net Automation District Electrical Power Monitor Industrial Automation Intelligent Construction Intelligent Switchboard and Switch Cabinet etc Famous for it s Easy Installiation Simple Wire Connection and Programmable setting parameters on site features Warning An accident may happen and product may be damaged if the coulometer is not operated according to the user manual 1 Code Illustration DW9L _______ Input Measuring Range B 5A X 450V D Others oo Input 30 3 Phase 3 Wire or 3 Phase 4 Wire input without RS485 Communication 38 3 Phase 3 Wire or 3 Phas
6. e 4 Wire input with RS485 Communication Alarm Function C 2 Alarm A No Alarm Output Function R Without 4 20mA output D Analog output DC 4 20mA L LCD Display Dimension mm 9 96W X 96H X 100L DW9OL 3 Phase Energy Coulometer 2 Model Indication Model Communication Pulse Output ON OFF Output DW9L A30B DW9L A38B DW9L RC30B DW9L RC38B DW9L DC30B DW9L DC38B 3 Main Technical Specification Connection 3 Phase 3 Wires 3 Phase 4 Wires Rated voltage value AC 50 260V Phase Voltage AC 50 450V Line Voltage Voltage overload Continuous 1 2 times Instantaneous 2 times 10S Consumption of voltage lt 1VA each phase Voltage imdepance 2300KOQ Voltage accuracy RMS measure accuracy class 0 5 Rated current value AC 0 025A 5A Current overload Continuous 1 2 times Instantaneous 10 times 10S Consumption of current lt 0 4VA_ each phase Current imdepance lt 20m0 Current accuracy RMS measure accuracy class 0 5 Frequency 45 60Hz accuracy 0 1Hz Power Active Reactive Apparent power accuracy 0 5 F S Energy Accuracy for Active Power and Reactive Power 1 F S Display LCD display Power supply range AC DC 100 240V 85 265V Power supply consumption lt 7VA KKDW9LE01 A 0 1 Output digital interface Standard RS 485 MODBUS RTU Protocol Pulse output 2 energy pulse output Optical c
7. e input current they should have the same phase sequence and direction otherwise data and sign error may occur power and energy D The connection mode of meter which is connected to power network should depend on the CT quantity For 2pcs of CT it should be 3 phase 3 wire connection For 3 pcs of CT it should be 3 phase 4 wire connection Meter wire connection the input network Link setting in the software menu should accord to the connection mode of the measured load Otherwise the measured voltage or power is incorrect E Please pay high attention on the difference between 3 phase 3 wire and 3 phase 4 wire connection Becasue wrong connection may lead to incorrect calculation of power factor power and energy Caution 1 Power supply connection must be correct 2 Pay attention on the phase sequence of voltage signal input 3 Current signal input should be connected as per the connection drawing 4 Connection mode should accord to the setting of user menu Link 5 Energy pulse output is open collector output 6 Isolation between power supply and circuid board in cause of leakage switch mis action KKDW9LEO1 A 0 8
8. f uchar num AL2 status 0 No alarm 1 Alarm yte character code float data as per IEEE 754 standard KKDW9LE01 A 0 7 9 Dimension and Mounting Size ide f Mounting Size Panel Size Side face Size 92 25 25 h TP eae 10 Connection Drawing 9295 re i 25 Do2 1AL2 DOAL POWERI 100 240V 4 20mA NC NO COM NC NO AC DC OO Cn Note Voltage input connection terminal it shows 3 phase 3 wire connection method if there is any change please turn to the correct diagram on the Meter Mode 1 3 pcs CT 3 phase 4 wire working mode with central line Mode 2 2 pcs CT 3 phase 3 wire working mode Current Input Voltage Input Current Input Voltage Input B i i Voltage direct input Curremt input via CT Voltage direct input as a Curremt input via CT Chage direct Inpu N Ss Voltage input via PT Voltage input via PT Explanation A Voltage input Input voltage should not be higher than the rated input voltage of meter otherwise a PT should be used B Current input Standard rated input current is 54 ACT should be used when the input current is bigger than 5A If some other meters are connected with the same CT the connection should be serial for all meters C Please make sure that the input voltage is corresponding to th
9. iten via RS485 interface 3 Communication function Please refer to the Communication protocol 4 Transform output Please refer to Table 1 5 Alarm function Please refer to Table 1 8 Communication protocol DWA9OL series coulometer adpots Modbus RTU communication protocol RS485 half duplex communication read function code 0x03 write function code 0x10 adpots 16 digit CRC check the coulometer does not feedback check error Data frame format Start bit Data bit Stop bit Check bit 1 8 1 No Communication abnormal solution When abnormal answer the highest bit of function code will be set to 1 For example if the request function code from host is 0x04 the return function code from meter is 0x84 Error type code 0x01 Function code error Meter does not support the function code it receives 0x02 Data position error The data position assigned by host is out of the range of meter 0x03 Data value error The data value sent from host is out of the range of meter 1 Read multi register For example host reads float data AL1 1st alarm value 241 5 The address code of AL1 is 0x0000 because AL1 is float data 4 byte seizes 2 data register According to IEEE 754 the standard hexadecimal memory code of decimalist float data 241 5 is 0x00807143 KKDW9LE01 A 0 4 Host request Read multi register 1 2 3 4 5 6 7 8
10. nsform Pt 9999 Primary coil voltage Secondary coil voltage cr To set the current signal ratio LE Current transform Ct 1 9999 Primary coil current Secondary coil current i Con Ad d Address Add D c55 Coulometer address range Communication parameters oAd Baud rate bAd 4 5 9 5 Baud rate 4 8 means 4800 9 6 means 9600 ET 1 52 When the value is 0 it is for DO1 function otherwise Hot 1st alarm mode Ad1 it is for alarm mode Please refer to Table 1 Hit 1stalarm value AL1 999 9999 1st alarm value setting 1st alarm hysteresis HY I value HY1 1999 9999 1st alarm hysteresis value setting 4 H L viti f 1 means international standard unit K 1000 times of standard unit u c 1st alarm value unit Ue ms the unit of alarm value is the same as alarm hysteresis value ON OFF value Ad 52 When the value is 0 it is for DO2 function otherwise setting u 2nd alarm mode Ad2 ET it is for alarm mode please refer to Table 1 A L Z 2ndalarm value AL2 1999 9999 2nd alarm value setting 2nd alarm hysteresis HY g value HY2 1999 9999 2nd alarm hysteresis value setting vet 4 1 means international standard unit K 1000 times of standard unit Ut g 2nd alarm value unit H the unit of alarm value is the same as alarm hysteresis value br A Transform mode selection H 2 5 Please refer to Table 1 Wi a f 5 D r rr Transform highest value 999 9999 Transform analog output 20mA Analog output rh Transform lowest value t 999 9999 Transform analog
11. oupler relay Normal Pulse Number 7200imp kwh ON OFF input 2 ON OFF input Connection without voltage or current signal Alarm output 2 ON OFF output 250VAC 3A or 30VDC 5A Analog output 1 transformed analog output 4 20mA DC Load lt 500Q Working environment Temperature 10 55 C Humidity lt 85 RH Storage environment 20 75 C Withstand voltage Input to power supply 1600VAC input to output 1600VAC power supply to each output DC 2000V Isolation Input Output Power Supply to Meter Cover gt 5MQ Dimension 96Wx96Hx100L Weight 0 6kg Return Key gt Left Key Right Key Note 1 Under Measuring Status DW9L INTELLIGENTIZED POWER METER 5 BBs 808 Z Increase Key Decrease Key gt gt key for the change of 3 Phase Voltage 3 Phase Current Total Power Power Factor and Frequency 2 Press Key for the change of Total Kwh and KvarH 3 DOL DO2 a Under Alarm Mode as alarm output status indicate b Under ON OFF remote control model as ON OFF output status indicate 4 S1 S2 as ON OFF remote control input status indicate 5 ALARM flash means alarm output COM flash means communicating RUN move means the meter under measuring status 6 X means measuring 3 phase Total Active Power Reactive Power Appearant Power PE means the Total Active Energy QE means total Reactive Energy 5 Menu Operation After Modify data pres
12. rm value unit 0 1 0 1 R W Note 41 0x0055 Analog output value unit 0 1 o 1 R W 42 0x0056 Connection mode Link 0 1 o 1 R W Note 43 0x0057 Baud rate bAUd 1 1 0 1 R W Note 44 0x0058 Meter address Add 1 1 0 255 R W 45 0x0059 ON OFF output DO1 DO2 l 0 3 RW onoi 46 0x005A ON OFF input S1 S2 1 Ores R asl 47 0x005B Meter name 0xD9 1 0xD9 R 48 0x005C Measuring status indication 1 0 16 R Note R W Read and Write both R Read Only Reference Table 1 Reference table for Alarm Output and Analog Output ON OFF output Code ON OFF output Code Analog output Code No Parameter Low Alarm High Alarm 4 20mA 1 Ua A Phase Voltage 1 2 1 2 Ub B hase Voltage 3 4 2 3 Uc C hase Voltage 5 6 3 4 Uab AB wire Voltage 7 8 4 5 Ubc BC wire Voltage 9 10 5 6 Uca CA wire Voltage 11 12 6 7 Ia A wire Current 13 14 7 8 Ib B wire Current 15 16 8 9 Ic C wire Current 17 18 9 10 Pa A Phase Active Power 19 20 10 KKDW9LE01 A 0 6 MG pamaite oe output Code noe T Code Analog ouput Code 11 Pb B Phase Active Power 21 22 11 2 Pc C Phase Active Power 23 24 12 3 Ps Total Active Power 25 26 13 4 Qa A Phase Reactive Power 27 28 14 5 Qb B Phase Reactive Power 29 30 15 6 Qc C Phase Reactive Power 31 32 16 7 Qs Total Reactive Power 33 34 17 8 Sa A Phase Appearant Power 35 36 18 9 Sb B Phase Appearant Power 37 38 19 20 Sc C Phase Appearant Po
13. s Key for confirmation More than f 5 Seconds First Class Second Class Third Class and return to previous Menu or press Key return to previous Menu SEt SEt SEt SEt Measuring Status f BS ae Ch Kwh Code setti earance Kwh Code setting 0000 Iiii U System Setting Q SEE See A SEE LCE LCE LCE 099 91 Menu lock code setting inP InP inP inP Q l L in L In A L in 3 4 3 3 Input Net of measuring signal Signal Input Q rap TAP Q TAP pe S pe lt lt pe 109 1001 Voltage Ratio InP ATH FLA Current Ratio Q m e a Add Meter s Address Range Communication Con Parameters bAd Baud Rate KKDW9LE01 A 0 2 ON OFF Setting 1 Alarm Mode 1Alarm Value Setting AL AL hg 2 fo 808 oo A At ALi esa AL HY 16 0 i 1 Alarm Hysteresis Value Setting 1 Alarm Value Unit 2 Alarm Mode 2 Alarm Value Setting 2 Alarm Hysteresis Value Setting Analog Output 6 Menu Operation Illustration Under Customer Menu Status 2 Alarm Value Unit Analog Mode 1 Press Key more than 3 seconds enter into customer menu setting each parameter 2 If the display is First Class or Second Class press SET Key
14. wer 39 40 20 21 Ss Total Appearant Power 41 42 21 22 PFa A Phase Power Factor 43 44 22 23 PFb B Phase Power Factor 45 46 23 24 PFc C Phase Power Factor 47 48 24 25 PFs Total Power Factor 49 50 25 26 Frequency 51 52 26 Note Q Connection mode Note Baud rate Communication value 0 1 Communication value 0 1 Menu display 3 4 3 3 Menu display 48 9 6 Remark 8 Measure status indication D7 D6 D5 D4 D3 D2 D1 DO Note Alarm Analog Unit Com Value 0 1 Menu Display 1 K AL1 status 0 No alarm 1 Alarm The program of 4 byte character code float data converting to decimalist float data float BytesToFloat unsigned char pch float result unsigned char p p unsigned char amp result p pch pt1 pcht1 p 2 pch 2 pt 3 pch 3 return result The program of decimalist float data converting to 4 b void FloatToChar float Fvalue unsigned charpch unsigned char P p unsigned char amp Fvalue pch p pch 1 p 1 pcht2 pt2 pcht3 p 3 The program of achieving 16 bit CRC check code unsigned int Get_CRC unsigned i j unsigned int wCrc 0xFFFF for i 0 i lt num i wCre unsigned int pBuf i for j 0 j lt 8 j if wCre amp 1 wCre gt gt 1 else wlrce gt gt 1 wCrc 0xA001 return wCrc uchar pBu
15. x93 Meter normal answer Write multi register 1 2 3 4 5 6 7 8 Meter Function Start address Start address Data byte Data byte CRC code CRC code address code High 8 bit Low 8 bit length High bit length Low bit Low bit high bit 0x01 0x10 0x00 0x01 0x00 0x02 0x10 0x08 Data position error answer For example host request write address index is 0x0050 Meter abnormal answer Write multi register 1 2 3 4 5 Meter address Function code Error code CRC code Low bit CRC code high bit 3 DW9L parameter address reflection table Note address code is the index of variable array No Address reflection Variable name Default value Byte length Value range Read Write Remark 0 0x0000 1st alarm value AL1 250 2 1999 9999 R W 1 0x0001 1st alarm hysteresis HY1 10 2 1999 9999 R W 2 0x0002 2nd alarm value AL2 250 2 1999 9999 R W 3 0x0003 2nd alarm hysteresis HY2 10 2 1999 9999 R W 4 0x0004 Voltage transform PT 1 0 2 1 9999 R W 5 0x0005 Current transform CT 1 0 2 1 9999 R W 6 0x0006 Analog output highest value RH 250 2 1999 9999 R W 7 0x0007 Analog output lowest value RL 0 0 2 1999 9999 R W 8 0x0008 Phase voltage Ua 2 0 9999 R 9 0x0009 Phase voltage Ub 2 0 9999 R 10 0x000A Phase voltage Uc 2 0 9999 R 11 0x000B Line voltage Uab 2 0 9999 R 12 0x000C Line voltage Ubc 2 0 9999 R 13 0x000D Line voltage Uca 2
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