DW9 series single phase coulometer user manual
Contents
1. mm Inputrange DW9 A10A 96HX96W X100L DW9 A10B No 96HX96WXI00L DW9 A18A RS485 96HX96W X100L DW9 A18B RS485 96HX96WXIO00L A 3Ax100V No No DWO9 RCIOA No 96HX96WX100L No O O No No 96HX96WXI00L 96HX96WXI00L D Other range 96HX96WX100L to be special ordered 96HX96WX100L 96HX96WX100L 96HX96WX100L 96HX96WX100L 3 Main function Function Indication D Voltage True effective value Direct input for voltage 0 450V the display range is 1 100 of measuring range meter can t display the value which is below 1 of the measuring range It must be special ordered for input above 600V 2 Current True effective value Direct input for current 0 5A the display range is 0 5 100 of measuring range meter caedi can t display the value below 0 5 of the measuring range A current transformer has to be connected to meter if above 5A input 8 Active power Max measuring value 9999K W 4 Power factor measuring range 0 1 0 6 Frequency measuring range 40 200Hz meter can t display the frequency if voltage input below 120V KWH Max measuring value 9999K WH 1 Alarm output optional parameters voltage current power factor active power reactive power apparent power KWH 2 Transmit output optional parameters voltage current power factor active power reactive power apparent power 3 RS485 communication Readable amp writable parameters please refer to t2. 2 p 3 pch 3 return result j The program of decimalist float data converting to 4 byte character code float data as per IEEE 754 standard void FloatToChar float Fvalue unsigned char pch unsigned char P p unsigned char amp Fvalue pch p pch 1 p 1 pch 2 p 2 pch 3 p 3 The program of achieving 16 bit CRC check code unsigned int Get CRC uchar pBuf uchar num unsigned 1 unsigned int wCrc OxFFFF for 1 0 i lt num i wCrc unsigned int pBuf 1 for j 0 j lt 8 j if wCre amp 1 wCre gt gt 1 wCrc 0xA001 else wCre gt gt 1 j return wCrc KKDW9E01 7
3. DW O series single phase coulometer user manual Features 2 To measure voltage current power factor active power reactive power DW9 SERIES COULOMETER apparent power frequency KWH at the same time ur Isolation for input output Two alarm output for voltage current power factor active power reactive power apparent power frequency KWH the upper and lower limit is settable 2 4 20mA transmit current output for voltage current power factor active power reactive power apparent power frequency 2 RS485 communication inferface Modbus RTU protocol 2 To measure true effective value 2 Easy to shift display value and operate menu setting with power down memory function for running data and KWH value 96Hx96Wx100L mm The coulometers are widely applied to factories enterprises science research institue machinery manufacturers electricity dept etc Toky Electrical is always dedicating to providing our users good performance meters and apparatus 1 Code illustration DW 9 0 00 J1 Input measuring range A 3Ax100V B 5Ax450V D Others Input 10 single phase input no communication 18 single Phase input with communication Alarm function A No alarm C 2 alarm output Output Blank R no transmit analog output D with transmit analog output 4 20mA Dimension 9 96Wx96Hx100L mm DW series single phase coulometer True effective value 2 Model Indication Transmit function Dimension
4. W If W KW indication lamp flashes it means the measuring unit is KW When meter measures reactive power and apparent power if W KW lamp flashes it means the unit of measured value is 1000 times of international unit If W KW is off it means the unit of measured value is international unit For example if VAR lamp is on the display value is 1 200 meanwhile W KW lamp flashes it means the measured reactive power is 1200VAR If W KW lamp is off it means the measured reactive power is 1 200VAR 6 Operation sequence Meter operation status shift chart Power on amp reset Meter it check Display me current full value Measuring status SET gt 3 second SEI i SET A to clear KWH value To show alarm setting status To display frequency SET SET If no operation in 25 seconds it returns To display power factor to measuring status automatically SET To display reactive power SET TSET To display apparent power To display KWH value SET SET To display Active power SET 1 Before power on please make sure all connection is correct after all connection is confirmed the meter can be power on 2 There are total 4 button key on the panel two operation status SET key is the parameter display shift key and confirm key A Y is increase decrease key is shift key x In measuring status no matter what parameter is displayed press SET more than 3 seconds meter displays Alarm Parameters Setting menu The Ist lin
5. arm AL Current lower limit alarm PFH Power factor upper limit alarm PFL Power factor lower limit alarm KWHH KWH value upper limit alarm KWHL KWH value lower limit alarm VARH Reactive power upper limit alarm VARL Reactive power lower limit alarm VAH Apparent power upper limit alarm VAL Apparnet power lower limit alarm KWH Active power upper limit alarm KWL Active power lower limit alarm HzH Frequency upper limit alarm HzL Frequency lower limit alarm Please refer to parameter setting indication Ist alarm value setting If alarm mode Ad1 is VH and ALI is 300 when actual measured value 300 the alarm output turns on automatically 999 9999 Ist alarm hysteresis setting If alarm mode is VH voltage upper limit alarm and AL is 300 HY1 is 10 when actual measured voltage value lt 300 10 the alarm output turns off automatically 1999 9999 2nd alarm mode setting Please refer to Ad1 Same as the setting of Ad1 2nd alarm value setting Please refer to ALI 19999999 2nd alarm hysteresis setting Please refer to HY 1 31999 9999 Current transform CT setting For example If the measured current range is 20A users must use a current transformer which transform value is 20 5 The CT value of our meter should be set as 4 000 20 5 4 000 For other range the setting is on the analogy of this 1 071999 KKDW9EO01 3 Baud rate Communicati
6. e LED displays the selected parameter and the relevant indication lamp turns on 3 Alarm output setting For Ist amp 2nd alarm output setting please refer to the setting indication on page 3 the setting for ALI HY1 Adl amp AL2 HY2 Ad2 4 Parameters change operation In menu setting status SET key is to select parameters and confirm the setting key is the shift key for parameter change A Y is increase decrease key When a digit is flashing press A or y key to change the value Press d 4 or 44 VW to shift decimal point after operation press SET key to confirm Press SET key for a few seconds to quit the setting menu KKDWOEOI 2 Power on amp reset To display voltage current full value SET SET Parameter setting indication Parameter Parameter meaning Code lst alarm value Ist alarm hysteresis value 2nd alarm mode 2nd alarm value 2nd alarm hysteresis value Current transform factor setting Communication baud rate Measuring status display lst alarm mode T SET Un les Indication Menu Lock Transmit mode selection Setting range Current display amendment value Voltage display amendment value Transmit lower limit setting value Transmit upper limit setting value Communication address range 0 255 Ex factory value Ist alarm mode setting VH Voltage upper limit alarm VL Voltage lower limit alarm AH Current upper limit al
7. ess forono Start NEN Start MMC Data mE Data MM CRC NEN CRC High bit CN bit a High bit length Low bit Low bit B N bit o oa ooo j ooo MT Meter normal answer multi Meter address Function code Pata byte Data 1 Data Data 2 Data 2 CRC code CRC code a bit AN bit E bit a bit Low E EN bit O oxo 0x03 0x04 MINUS 0x80 ox7 I B OE OxTA Function code abnormal answer For example host request function code is 0x04 Meter abnormal answer cene multi register 2 Write multi register For example Host writes float data HY1 1st alarm hysteresis value 20 5 The address code of HY1 is 0x0001 because HY 1 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 ee eee ee Meter Function box Ades Data 1 Data 1 Data 2 Data 2 re a dd eee hich bit 1 it high bit code code address code sion bit Low bit length xd EM E cd Fo pner Meter normal answer Write multi register Meter Function Start address Start address Data byte Data byte CRC code CRC code WC EN Nx 8 bit a 8 bit m High bit EX Low bit E m bit EE bit oxol O x0 0 0x0 O oxol MINS O x02 Ox 10 Ox Data position error answer For example host request write address index is 0x0050 Meter abnormal answer Write multi register KKDWOEOI 5 3 DW9 parameter add
8. he parameters address table on page 5 to 7 4 Main technical parameters Measuring function voltage current power factor active power reactive power apparent power frequency KWH Voltage input impedance 2300KQ 600V Current input impedance lt 0 02 Q Direct input 5A Input impedance KKDWOEOI 1 Display range Voltage 4 5 450V Current 0 025 5A Display digit 3 lines 4 digit per line LED display Measuring mode True effective value measuring for voltage current power factor Measuring frequency range 40 200Hz Voltage 0 5 FS 2Digit Current 0 5 FS 2Digit Power 0 5 FS 2Digit 40 100Hz 1 FS 100 200Hz Power factor 0 5 FS 40 100Hz 1 FS 100 200Hz Total power consumption lt 5VA Measuring accuracy Relay capacity 250VAC 3A or 30VDC 5A Working condition Temperature 0 50 C Humidity lt 85 RH 5 Panel indication Hz Frequency indication lamp DW9 SERIES COULOMETER VA Apparent power indication lamp PF Power factor indication lamp W KW Active power indication lamp gt VAR Reactive power indication lamp KWh KWH indication lamp V KV Voltage unit indication lamp A mA Current unit indication lamp ALI Alarm 1 indication lamp AL2 Alarm 2 indication lamp SET Parameters select confirm key Shift key Decrease key Increase key When meter measures active power if W KW indication lamp is on it means the measuring unit is
9. on data speed 4 8Kbit 9 6Kbit 9 6Kbit Communication address Add 1s used to define meter communication address for the meters on the same communication line they should be set different address value for identification Transmit mode selection V Voltage transmit A Current transmit PF Power factor transmit Var Reactive power transmit Hz Frequency transmit VA Apparent power transmit KW Active power transmit Please refer to the parameter setting indication Transmit upper limit setting Transmit lower limit setting Display setting value for 20mA transmit output Display setting value for 4mA transmit output 1999 9999 1999 9999 Voltage amendment value Current amendment value Voltage display value after amendment measured value VPS value Current display value after amendment measured value APS value 1999 9999 1999 9999 Menu lock If the value is 000 parameters can be changed 000 If the value is 010 parameters can be read but not 010 changed 7 Appearance amp mounting dimension 96 91 5 2 25 0 1 lt gt 45 91 25 0 i l mE 8 Connection drawing Power Supply 85 265V AC DC Power supply for the equipment D Power supply for the equipment Equipment to be measured lt OUT 4 20mA Q Signal input Signal direct input via transformer F
10. or the current input connectors there are two connectors for one end If load current 734A please connect wire with all current input connectors as per the above drawing in order to share the input current per each end and avoid connectors over heating Note Please subject to the drawing on the meter if it is different to the one on the user manual KKDWOEOI 4 9 Communication protocol DW2O 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 tops 1 Communication abnormal solution When abnormal answer the highest bit of function code will be set to 1 For example 1f 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 ALI is float data 4 byte seizes 2 data register According to IEEE 754 the standard hexadecimal memory code of decimalist float data 241 5 1s 0x00807143 NE NND a E multi cmm Meter addr
11. ress reflection table Address reflection Byte length a Remark 09000 dstaamviueALI 2 199 999 nw m atte gt c9 w osos mamane 2 9 Aw osos maanneen 9 Aw mew camino gt c9 w osos rica API RW me eese 2 E RN oros core aer sate APS 2 deeem aw me wweehbeaery 2 mec ok mem comenses 2 mec ke mem votives E ke eme cease 2 Mee OR ECON 0k ECL NN NN NTN T NTN ITN o o 3 o t a w IN NINMVININ HN AAA y pa 0x000D Power factor ET A UN wen wma 2 95 99 0 255 Reservation 050014 ada 93 T mw ramo a 3 n ed mon Toamne 1 oa ec mor Mewwksdelck 1 ozs RW won Bamewa 1 91 R RemkG mos Merete add 1 eus RO in remesa 1 ase 0x001B Meter name OxD9 A A A A NO pa Reservation R W Read and Write R Read only Remark D Alarm mode ow o f w 0r e ww 6 kw 7 Activepowe va 0 ss va 9 Retive power KKDW9E01 6 Remark 2 Transmit mode Communication value 0 1 3 4 5 Remark 8 Baud rate a E Menu display 48 96 Remark 2 Measurement status indication 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 p 1 pch 1 p 2 pch
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