User`s Manual - AMETEK Power Instruments
Contents
1. 010CH Relay1 pulse width R W 50 3000 Word 010DH Relay2 work Mode R W 0 Latch 1 Momentary 2 Alarm Word 010EH Relay2 pulse width R W 50 3000 Word 010FH AO VS Metering Data R W 0 6 0 Frequency 1 Voltage 2 Current 3 Power 4 Re active Power 5 Apparent Power 6 Power Factor Word Table 4 16 System parameter address AMETEK POWER INSTRUMENTS LCD Back light Time 0 120 Min Word 0111H Alarm object select R W 0 7 Word 0112H Time limited setting R W 0 255 Word 0113H Alarm parameter value R W 30000 30000 Integer 0114H Inequation Sign R W O lt 1 gt Word Alarm relate RO 0 RO1 1 RO2 Word Table 4 16 System parameter address Digital Input DI Status Function code 02 for Reading 1 ON 0 OFF 1 ON 0 OFF 1 ON 0 OFF 1 ON 0 OFF Table 4 17 Digital Input DI Address 49 DPMS 50 X1 Series Multi function Power Meter Relay Status and Control Function code 01 for Reading 05 for Controlling 0000H DO1 1 ON O OFF Bit R W 0001H DO2 1 ON O OFF Bit R W Table 4 18 Relay Address Note 1 Object type Bit binary bit word unsigned integer of 16 bit Integer Signed integer of 16 bit Dword unsigned integer of 32 bit 2 Type of Access R Read only Digital input Relay status and Data are read by using fu2. Address Field The address field of a message frame contains eight bits Valid slave device addresses are 0 255 decimal A master addresses a slave by placing the slave address in the address field of the message When the slave sends its response it places its own address in this address field of the response to let the master know which slave is responding Function Field The function code field of a message frame contains eight bits Valid codes are 1 255 decimal When a message is sent from a master to a slave device the function code field tells the slave what kind of action to perform AMETEK POWER INSTRUMENTS 01 Read Relay output Status Obtain current status of Relay Output Read Digital Input Status Obtain current status of Digital Input 03 Read Registers Obtain Current binary value in one or more registers Control Relay Output Force Relay to a state of on or off Preset Multiple Registers Place specific binary values into a series of consecu tive Multiple Registers Fig 4 2 Function Code Data Field The data field is constructed using sets of two hexadecimal digits from 00 to FF hexadecimal The data field of messages sent from a master to slave devices contains additional information which the slave must use to take the action defined by the function code This can include items like discrete and register addresses the quantity of items to be handled and the count of actual data bytes in the field Check Fiel
3. could be AWG16 22 or 0 6 1 5mm Ground Ge Fig 2 7 Wiring of Power Supply Voltage Input A 400Vac option is suitable for a low voltage system that is less than E Note 480Vac The voltage input should be directly connected to the meter termi The secondary of nal without the use of a PT the PT can not be shorted otherwise it A fuse typical 1A 250Vac should be used in the voltage input loop The wire gauge of the voltage input should be AWG16 22 or 0 6 1 5mm may cause the severe damage to the instru ment 13 DPMS X1 Series Multi function Power Meter Current Input r D Note In a practical engineering application CTs should be The CT loop should not be open circuit in any simultaneously when the power is on There should not the CT is 5A A CT of accuracy over 0 5 rating over 3VA is installed in the measuring loop Normally the secondary of be any fuse or switch in the CT loop recommended and it will influence the measuring accuracy and one end of the CT loop should The wire between the CT and meter should be as short as be connected to the ground possible The length of the wire may increase the error of the measurement The wire gauge of the current input should be AWG15 16 or 1 5 2 5mm Wiring of Current Input Before Wiring Please Make sure the voltage and current input of the meter corresponds to the power system measured Single Phase Voltage and Current Input Wiring
4. 5 L Power Reactive Power W Var Apparent Power VA Power Factor Frequecy Hz Voltage Current V A Metering Data Fig 3 19 b Analog Output 0 1mA VS Metering Data v 5 2 0 45 65 0 PT1 CT1 P Power Reactive Power W Var Apparent Power VA Power Factor SPTIXGTI PTIXCTI 0 TixcT P OSC 10 0S0 Frequecy Hz Voltage Current V A AO Output Metering Data Fig 3 19 c Analog Output 0 5V VS Metering Data 32 TEK POWER INSTRUMENTS The eighth screen Display back light on time setting page The backlight will go to off for the purpose of energy saving and component dura tion if the keys are untouched for a period of time Fig 3 20 Back light on time i The on time can be set from 0 120 Minutes The back light will always be on if the setting value is 0 As in fig 3 20 the setting time of the back light is 5 minutes The back light will automatically go to off if there is no touch on the keys in 5 minutes The ninth screen Access code setting page Fig 3 21 Access Code setting This is the last screen of the setting page The access code can be changed in this setting page It is important to remember the new access code after the setting As in fig 3 21 the access code is 0001 Press the V A key let the access code be stored in the meter and go back to the first setting page After all the setting has been finished press lt gt and V A to exit t
5. During generation of the CRC each 8 bit character is exclusive ORed with the register contents Then the result is shifted in the direction of the least significant bit LSB with a zero filled into the most significant bit MSB position The LSB is extracted and exam ined If the LSB was a 1 the register is then exclusive ORed with a preset fixed value If the LSB was AMETEK POWER INSTRUMENTS a 0 no exclusive OR takes place This process is repeated until eight shifts have been performed After the last eighth shift the next 8 bit byte is exclusive ORed with the register current value and the process repeats for eight more shifts as described above The final contents of the register after all the bytes of the message have been applied is the CRC value When the CRC is appended to the message the low order byte is appended first followed by the high order byte All the examples in this chapter are following the format of Table 4 3 All data is in Hex Data start Data start Data of Data of CRC16 CRC16 Addr Fun A reg hi reg lo regs hi regs lo Hi Lo 11H 03H 01H 00H 00H 08H 47H 60H Table 4 3 Protocol Format In table 4 3 the meaning of each abbreviated word is Addr address of slave device Fun function code Data start reg hi start register address high byte 39 DPMS X1 Series Multi function Power Meter Data start reg lo start register address low byte Da
6. is set press V A to go to the next setting screen Press V A to go to the next screen if there is no need to change the address Two or more meters should not be set to the same address in the same communication line according to the Modbus RTU protocol 28 TEK POWER INSTRUMENTS The second screen Baud rate setting page Modbus RTU 8 data bit no parity 1 start bit and 1 stop bit Baud rate could be one of five values 1200 2400 4800 9600 19200bps In fig 3 13 the baud rate is 19200bps Press E to select baud rate Press V A to go to the next screen Fig 3 13 Baud Rate Setting Only one baud rate should be selected on the same communication line The third screen PT primary rating voltage PT1 setting page The PT1 value is an integer from 100 500 000 The unit is volt In fig 3 14 PT1 100000V Use P amp E keys to Fig 3 14 PT1 Setting change the PT1 value Press lt gt V A key for acknowledgment and for going to the next setting page 29 DPMS X1 Series Multi function Power Meter an En SEED suas SS sang Fig 3 15 PT2 Setting den L l D brand La enun aaa cnnn JUL Fig 3 17 CT2 Setting 30 The forth screen PT secondary rating voltage PT2 setting page The PT2 value is an integer from 100 400 The unit is volt As in fig 3 15 PT2 400V press P E and lt to change the value Press V A for acknowledgment and to go to
7. modify the contents of a Multi Register Any Register that exists within the meter can have its contents changed by this message The examp to meter number 17 to Preset E 17807 7KWH with its Hex Value 0002B79DH E data address is 0109H and 010AH E register is 32bit or 4 byte e below is a request Addr Fun Data start reg Data start reg Data Hof reg Data of reg Byte hi lo hi lo count 11H 10H 01H 09H 00H 02H 04H Valuehi Valuelo Valuehi Valuelo CRC16 hi CRC16 lo 00H 02H B7H 9DH 7DH OCH Table 4 12 Control Relay Response Message Response The normal response to a preset Multi Register request includes the slave address function code data start register the number of registers and error checking 45 DPMS X1 Series Multi function Power Meter 46 Addr Fun gd go ug pie s pss Pot CRC16hi CRC16 Io 11H 10H 01H 09H 00H 02H 92H A6H Table 4 13 Preset Multi Registers Response Message 4 3 Address Table Metering data is stored in the register area Use Modbus 03 function code to read metering data Address Parameter Range Object Type Type of Access 0000H Frequency F 0 6500 Word R 0001H Voltage V 0 65535 Word R 0002H Current I 0 65535 Word R 0003H Power P 32768 32767 Integer R 0004H Reactive Power Q 32768 32767 Integer R 0005H Apparent Power S 0 655
8. the next setting page Note If there is no PT on the voltage input side PT1 and PT2 should be the same and equal to the input rating voltage The fifth screen CT primary rating current CT1 setting page The CT1 value is an integer from 5 9999 The unit is Amp As in fig 3 16 CT1 5000A press P E and lt gt to change the value Press V A for acknowledgment and to go to the next setting page The sixth screen The defult value of CT2 is 5 A If the meter is a 1A option CT2 should be 1A AMETEK POWER INSTRUMENTS The seventh screen Analog output setting page One metering value can be selected as analog output The number 0 to 6 corresponds to fre quency voltage current power reactive power apparent power and power factor There is no 3 18 Analog Output Setting i setting page in a single function meter There are three output modes 4 20mA 0 1mA and 0 5V in the DPMS X1 series which is chosed when ordering The relation be m tween the output mode and metering data is as Fig3 19 a b c AO Output 45 e Vo PTI GT1 SPTIXGTT PTIxCT1 0 PTIXGT1 OS C 10 O50 Frequecy Hz Voltage Current V A Power Reactive Power W Var Apparent Power VA Power Factor Metering Data Fig 3 19 a Anolog Output 4 20mA VS metering Data 31 DPMS X1 Series Multi function Power Meter mA 1 5 amp amp 05 o lt 0 45 65 0 PTA CT1 PTAxCT1 PT1xCT4 0 PT1XCT1 0 5 C 1 0 0
9. 35 Word R 0006H Power Factor PF 1000 1000 Integer R 0007H Load Nature RT 76 L 67 C 82 R Word R 0008H AO Output 0 65535 Word R H n Energy E 0 9999999 Dword R Table 4 14 Metering data address table AMETEK POWER INSTRUMENTS The Relationship between the numerical value in the meter register and the real physical value is in the following table Rx is the numerical value in the register of the meter Frequency F F Rx 100 Voltage V U Rx PT1 PT2 10 Current I I Rx CT1 5 1000 Power P P Rx PT1 PT2 CT1 5 10 Reactive Power Q Q Rx PT1 PT2 CT1 5 10 Apparent Power S S Rx PT1 PT2 CT1 5 10 Power Factor PF PF Rx 1000 Load Nature RT ASCII L C R 52H R 43H C 4CH L Energy Kwh Kwh Rx 10 Table 4 15 Measuring data convert table 47 DPMS X1 Series Multi function Power Meter 48 Parameter Setting Function code Address 03 for Reading 16 for Presetting Parameter Type of access Range Object type 0101H Access Code R W 0 9999 Word 0102H Communication Address R W 1 254 Word 0103H Baud Rate R W 0 4 Word 0104H P T1 Lo 0105H PT1 Hi R W 100 500000 Dword 0106H PT2 R W 100 400 Word 0107H CT1 R W 5 1 9999 Word 0108H CT2 R W 5 1 Word 010BH Relay1 work Mode R W 0 Latch 1 Momentary 2 Alarm Word
10. 4 0003H The following query is to read the 4 DI Status of meter Number 17 Table4 6 Read 4 DIs Query Message Data start Data start DI num Di num CRC16 CRC16 Addr Fun reg hi reg lo hi lo Hi Lo 11H 02H 00H 00H 00H 04H 7BH 59H Response The meter response includes its address function code quantity of data characters the data characters and error checking An example response to read the status of 4 Dis is shown in Table 4 7 The status of each is responding to the last 4 bits of the data DI1 bitO DI2 bit1 DI3 bi Addr Fun Byte Data GREAR EM count Hi Lo 11H 02H 01H 03H E5H 49H 42 Table 4 7 Read Status of DI 2 DI4 bit3 Data 7 6 5 4 3 2 1 0 0 0 0 0 0 0 1 1 MSB LSB AMETEK POWER INSTRUMENTS 3 Read Data Function Code 03 Query This function allows the master to obtain the measurement results of the meter Table 4 8 is an example to read the 3 measured data F V and I from slave device number 17 The data address of F is 0000H V1 is 0001H and V2 is 0002H Data start Data start Data of Data of CRC16 CRC16 Addr Fun reg hi reg lo regs hi regs lo Hi Lo 11H 03H 00H 00H 00H 03H 07H 5BH Table 4 8 Read F V Query Message Response The meter response includes the meter address function code quantity of data byte data and error checking An example re
11. DPMS X1 Series Power Meter User s Manual 1087 351 LE AMETEK POWER INSTRUMENTS User Notes Page AMETEK POWER INSTRUMENTS CopyRight 2008 V1 0 This manual may not be reproduced in whole or in part by mimeograph or any other means without permission of AMETEK The information contained in this document is believed to be accurate at the time of publication however AMETEK assumes no responsibility for any errors which may appear here and reserves the right to make changes without notice Please ask your local representative for the latest product specifications before ordering DPMS X1 Series Multi function Power Meter Please read this manual carefully before installation operation and maintenance of this product The following symbols are used in this manual and on the meter to alert to danger or to prompt in the operating or set process 4 Danger symbol Failure to observe the information may result in injury or death Alert symbol Alert to potential danger Observe the information after the symbol to avoid possible injury or death Dangerous Near dangerous position Failure to observe the information may result in injury or death A E D Note Symbol avoid result in meter damage or human injury or death The instrument should be well grounded and powered off before maintenance Installation and maintenance of the meter should be performed by qualified personnel that have appropriate t
12. Diagram is shown in Fig 2 8 14 LINE LN GS VL wmwanex DPMS X1 3 Ton s Bre LOAD Fig 2 8 Current and Voltage Input Digital Input 12 24Vac AMETEK POWER INSTRUMENTS K_ Dit Optal iple OUT FH E NM DPMS X1 C D FIG 2 9 Digital Input There are 4 Digital Inputs Options which require an external power supply The Input terminals are DI1 9 DI2 10 DI3 11 DI4 12 DIC 13 as in Fig 2 9 The external power supply used for the Digital Input is from 16Vdc 30Vdc If the switch is far from the meter the voltage of the power supply could be higher The maximum current in the circuit should not be over 10mA The wire gauge of Digital input should be AWG16 22 or 0 6 1 5mm 15 DPMS 16 X1 Series Multi function Power Meter Relay Output There are two additional relay outputs in the meter The terminals are R11 R12 16 17 and R21 R22 18 19 These two relay outputs are used to remotely control an electric switch in power systems The relay type is mechanical Form A contact with 3A 250V or 3A 30Vdc An intermediate relay is recommended in the output circuit as in Fig 2 10 There are two relay output modes for selection one is latching and the other is DPMS X1 momentary For the latching mode the relay Output 1 1 T I Control 1 1 1 can be used to output two statues on or off For the m
13. Fig 2 6 Terminal Strips 11 DPMS X1 Series Multi function Power Meter DANGEROUS Only qualifie d per sonnel should do the wire connection work Make sure the power supply is off and all the wires are powerless Failure to observe it may result in severe injury Make sure the voltage of power supply is the same as what the meter needs for its auxiliary power Safety Earth Connection Before doing the meter wiring connection please make sure that the switch Panel has a safety Earth system Connect the meter safety earth terminal to the switch gear safety earth system The following Lt safety earth symbol is used in the user s manual Auxiliary Power The auxiliary power supply of the meter is 85 264Vac 50 60Hz or 100 280Vdc Typical power consumption is less than 2W A regula tor or a UPS should be used when the power supply varies too much The terminals for the auxiliary power supply are 1 2 and 3 L N G A fuse typical 1A 250Vac should be used in the auxiliary power supply loop No 3 terminal must be connected to the safety earth system of the switchgear An isolated transformer or EMI filter should be used in the auxiliary power supply loop if there is a power quality problem in the power supply Typical Wiring of Auxiliary Power Supply is shown in Fig 2 7 AMETEK POWER INSTRUMENTS 1A FUSE o 0 85 264Vac FO Power Supply O i DPMS X1 The Best choice the wire of power supply
14. Voltage gt 16Vdc Max Input Current 20mA Voltage AMETEK POWER INSTRUMENTS Current Power Reactive Power Apparent Power Power Factor Frequency Energy Drift with Temp lt 100ppm 0 Stability 0 1 Year 0 1 Year 53 DPMS X1 Series Multi function Power Meter Output Form Mechanical Contact Contact Resistance 30m ohm 1A Max Break Voltage 250Vac 30Vdc Max Break Current 3A Max Isolate Voltage 4000Vac rms Output Range 4 20mA or 0 1mA or 0 5V Resolution 12bit Output 4120mA Max Resistance 5000 Capability OSV Max Resistance 10KQ 0c1mA Max Resistance 20mA 54 Measuring Environment AMETEK POWER INSTRUMENTS 1EC60687 0 5 ANSI C12 16 Class10 IEC61036 class1 IEC61268 class2 IEC 60068 2 Safety IEC 61557 2 EMC 1EC61000 4 2 3 4 5 6 8 11 Dimension DIN43700 Dimensions mm 96 x48 x60 Cut 90 x44 Protection Level IP54 Front IP20 Cover Weight g 400 Temperature 250 700 Humidity 0 95 Non condensing Power Supply 85 264Vac or 100V 280Vdc Power 3W MAX 55 DPMS X1 Series Multi function Power Meter Appendix B Ordering Information DPMSX1 DI 4 Digital Inputs RO 2 Form A Relay Outputs AO 1 Analog Output DPMS X1 Fig 5 1 Ordering information 56 User Notes Page Experience the Power AMETEK Power I
15. d Check field is used in master and slave devices to find errors in the data transmitting process There may be some error happening in a group of data when they are transmitted from one device to the other due to noise or other interference The check field guarantees the device does not respond 37 DPMS 38 X1 Series Multi function Power Meter with error messages so as to improve system safety and efficiency The CRC16 error check method is adopted in Modbus Protocol 3 Error Check Method Messages include an error s checking field that is based on a Cyclical Redundancy Check CRC method The CRC field checks the contents of the entire message It is applied regardless of any par ity check method used for the individual characters of the message The CRC field is two bytes con taining a 16 bit binary value The CRC value is calculated by the transmitting device which appends the CRC to the message The receiving device recalculates a CRC during receipt of the message and compares the cal culated value to the actual value it received in the CRC field If the two values are not equal an error will be reported The CRC is started by first preloading a 16 bit register to all 1 s Then a process begins of applying successive 8 bit bytes of the message to the current contents of the register Only the eight bits of data in each character are used for generating the CRC Start and stop bits and the parity bit do not apply to the CRC
16. d on an RS485 bus Use good quality shielded twisted pair cable AWG22 0 5mm or larger The overall length of the RS485 cable connecting all devices can not exceed 1200m 4000ft The meter is used as a slave device of a master like PC PLC data collector or RTU The topology of RS485 net can be line circle and star A few points of recommendation for high quality communication are as follows Good quality shielded twisted pair of cable AWG22 0 6mm or larger is very important The shield of each RS485 cable segment must be connected to ground at one end only Make sure of the right connection at each point Avoid T connections at each point Keep cables away as much as possible from sources of electrical noise TEK POWER INSTRUMENTS Chapter 3 Basic Operation and Setup 3 1 Display Panel and Keys There is one display panel and four keys on the front of the meter All the display segments are illustrated in fig 3 1 DO iH LE lg ool 010 L2 LA addr bps pti pt2 cti ct Fig 3 1 All Display Segments 21 DPMS X1 Series Multi function Power Meter Number Display Description Data and Parameters Display metering data in metering mode orem m ee 5000 Unit Label Indicating Metering data unit V and KV for Voltage A for Current Hon KW for Power KVar for Reactive Power KVA for Apparent Power KWH for Energy PF for Power Factor Hz for Frequency
17. ensions 2 1 1 Appearance Fig 2 1 Appearance AMETEK POWER INSTRUMENTS Part Name Description House Meter House is made of High Strength anti fire glass polymer Front Panel Front Part of the Meter Display Window LCD Display Window Key Used to change display and setting the parameters Key Door Used to protect key Mis press Clip Used fasten the meter on the panel Input Terminal Power supply Voltage and Current Input Terminal Auxiliary Terminal Digital Input Relay Output Analog Output and Communication Terminal Table 2 1 Part Name of Meter 2 1 2 Dimension mm 8 8 3 ul hl 96 00 60 00 K 71 00 K Fig 2 2 Dimension DPMS X1 Series Multi function Power Meter 2 2 Installation ki D Note The environment tem perature humidity and position should be in the meter s specifica tion range 2 Humidity Environment Before installation please make sure that the environment satisfies the following conditions 1 Temperature The meter s working temperature range is from 20c 70c If the meter is used beyond this range it will result in abnormal performance or even permanent damage to the meter Meter s storage range is from 40c 85c Meter s working humidity is from 0 95 non condencing 3 Position The meter should be installed in a dry and dust free environment and avoid heat rad
18. he setting mode 33 DPMS X1 Series Multi function Power Meter The setting page may be different depending on the meter type Please confirm the meter type before doing the parameter setting The seventh page is the real energy preset ting page Use lt gt E and P to preset the value of energy As in Fig 3 22 the energy value is 0 Kwh Press V A to acknowledge and go to the next setting Fig 3 22 Real energy page 34 AMETEK POWER INSTRUMENTS Chapter 4 Communication The ModbusTM RTU protocol is used for communication in the meter The data format and er ror checking method are defined in Modbus protocol The half duplex query and respond mode is adopted in Modbus protocol There is only one master device in the communication net The others are slave devices waiting for the query of the master Only a master device can communicate with a slave device The slave devices can not communi cate with each other They just respond to the query of a master device 1 Transmission mode The mode of transmission defines the data structure within a frame and the rules used to trans mit data The mode is defined as follows which is compatible with Modbus RTU Mode Coding System 8 bit Start bit 1 bit Data bit 8 bit Parity None Stop bit 1 35 Error Checking CRC DPMS 36 X1 Series Multi function Power Meter 2 Protocol Framing Address Function Data Check Table 4 1 Data Framing
19. iation and high electrical noise sources Installation Steps Normally the meter was installed on the switch board panel 1 Cut a rectangular hole in the panel of the switch gear The cutting size is in fig 2 3 AMETEK POWER INSTRUMENTS 0 5 90 00 Fig 2 3 Panel Cutting 2 Remove the clips from the meter and insert the meter into the cut out hole from the front side Fig 2 4 Put the meter into square hole DPMS X1 Series Multi function Power Meter 3 Put the clips back on the meter from the backside and push the clip tightly so that the meter is affixed on the panel Fig 2 5 Use the clips to fasten the meter on the panel 10 AMETEK POWER INSTRUMENTS 2 3 Wiring Terminal Strips There are 2 terminal strips on the back of the meter 2909099909 e CPV EA WE Zi vw WE S LY LT LT LT LJ LT LT LT LI LT LT LT LT LI LI DIGITAL INPUTS AO RELAY OUTPUTS RS 485 Dne Diz o p vic ao ao rv R2 roi R2 a B s 9 10 1 12 13 14 15 16 17 18 19 20 21 22 Upper terminal strip Communication and I O POWER VOLTAGE CURRENT INPUT INPUT L N G NC VL VN n 12 1 2 3 4 5 6 r Lower terminal strip Power Voltage and Current Input Note NC means No Connection Certain terminals may not exist depending on options ordered
20. nction code 02 01 and 03 respectively R W Read and Write Data is written by using function code 16 and control command is written by using function code 05 Writing to a read only field is forbidden 3 Energy data is represented in 32 bit Both high 16 bit and low 16 bit have successive address alone The high 16 bit data should be multiplied by 65536 plus low 16 bit data to get the energy data in the master software The unit is 0 1kwh or 0 1kvarh It will be cleared to zero and start again when energy data accumulates to 1 x 106kwh kvarh The energy register can be cleared or preset through the communication port AMETEK POWER INSTRUMENTS Appendix A Technical Data and Specifications Voltage Rating 400V Option 400Vac 20 Over Range Frequency Range 45 to 65Hz Overload 2 times for continue Voltage Range Through PT 2500Vac for 1 Sec None recurrence 500KV highest at primary side PT Burden Measuring 0 2VA True Rms 51 DPMS X1 Series Multi function Power Meter 52 Current Rating 5Amp 20 Over Range Ordering on Special Rating Current Range Through CT 10000A at primary side Over Load 10A Continue 100A 1sec None Recurrence CT Burden lt 0 5VA Measuring True Rms Optical Isolation Isolate Voltage 4000Vac rms Input Form Contact with Power Supply Input Resistance 2K ohm typical Input Voltage Range 16 30Vdc Close
21. nstruments 255 North Union Street Rochester NY 14605 U S A 585 263 7700 Tel 585 454 7805 Fax power sales ametek com www ametekpower com AMETEK POWER INSTRUMENTS
22. number of I is 3 from Table 2 2 3 CT1 200 the equation converting between real value and register value is Real value value in register x CT1 5 1000 If real value is 180A the register value is 4500 4 Time limit is 15s The register value is 15 5 The value is high limit so the sign of in equation is 1 great than The alarm happens when register value gt 4500 6 The alarm relating relay is RO1 so the RO select 0 After completing the above setting the alarm will trigger RO1 and back light flashing when the value of I is over 180A and lasts over 15 seconds Analog Output AMETEK POWER INSTRUMENTS An Analog output option is provided in the DPMS X1 meter Any one of the seven parameters could be selected as Analog Output Refer to Chapter 3 Analog Output could be one of the following outputs 4 20mA 0 1mA and 0 5V VCC VCC Load DPMS X1 DPMS X1 Ne Voltage Output Type Current Output Type Fig 2 11 Analog Output Diagram Output Capacity 4 20mA Max Load Resistance 750ohms 19 DPMS X1 Series Multi function Power Meter 20 0 1mA Max Load Resistance 10kohms 0 5V Max Output Current 20mA Communication The communication port and protocol are RS485 and Modbus RTU The terminals of communi cation are A B and S 20 21 22 A is differential signal B is differential signal and S connected to the shield of the twisted pair cable Up to 32 devices can be connecte
23. o Load Nature Capacitive Load w Inductive Load o Digital Input Indicator No 1 to No 4 switch indicate statues of DI1 to DI4 Parameter Label SET label is on when the meter is in the setting mode One of the following label is also on Addr for communication address bps for Communication Rate Bit per Second pt1 for primary voltage pt2 for secondary voltage ct1 for primary current ct2 for secondary current and Q for time of back light Communication state When is on it indicates that there is communication infor mation between meter and master instrument Table 3 1 Display Panel Description 22 TEK POWER INSTRUMENTS There are four keys labelled as lt gt E P and V A Use these four keys to read metering data and do parameter setting All the descriptions in this manual are about the DPMS X1 which is a full function single phase power meter For other meters please refer to the corresponding function or description Normally the meter displays the metering data such as voltage current power etc To read the metering data simply press the keys P E and V A Press V A to read voltage current and frequency The first screen Display Voltage U 220 3V Inductive load Communication Port Busy DI1 DI2 DI3 and DI4 Open Press V A to go to the second screen Fig 3 2 Voltage Display 23 DPMS X1 Series Multi function Power Meter 24 Fig 3 3 Cur
24. omentary mode the output of the relay changes from off to on for a period of Fig 2 10 Relay Output time Ton and than goes off Ton can be set from 50 3000ms The wire gauge of the relay output should be between AWG22 0 5mm AWG16 1 5mm AMETEK POWER INSTRUMENTS Alarm Output There is an alarm function in the DPMS X1 series meter The alarm will be triggered when a metering parameter is over the limit value and over the setting time limit The alarm can be related to relay output or LCD back light flashing Setting of the alarm is as follows 1 Set the relay output mode as alarm DO MODE 2 2 Assign metering parameter to alarm Refer Table 2 2 3 Set alarm time limit Min time 1s Range 0 255s 4 Set alarm value limit 5 Sign of the inequation 0 parameter lt Value limit 1 parameter Value limit 6 Relate to relays 0 RO1 1 RO2 For the register of setting parameters please refer to 4 3 of this manual Serial number versus alarming parameter is listed in Table 2 2 Number 0 means no parameter is assigned to alarm ULM of af 2 J I 4 J J 7 Parameter Hz Table 2 2 Serial number versus alarming parameter 17 DPMS X1 Series Multi function Power Meter 18 Example Alarming parameter I Time limit 15s Alarm output relay RO1 Rating of CT1 of I 200A Value limit 180A The setting of alarm is as follows 1 Set the relay output mode as alarm DO MODE 2 2 The serial
25. raining and experience with high voltage and current devices AMETEK POWER INSTRUMENTS Content lC m M at Chapter 1 Introduction o ete ti ce e ci cen ceo EXE EE Yo ene see vec ELeE mares anime 1 LBS Ip T Teo io To 1 1 2 Applicallon AT68 cce SEEI S esee p ven NM NONEM P RM LA TIN AE cuue neat 2 1 3 The DPMS XI SeriBs nente ioter esi nash ripae ncc ir pa sse ase ded 3 Chapter 2 Installation 3 ceret reo tutte Er Eve IIo Yea ze text ecu ee y ocu e DER UY PLI TRE Yi eae Ced 6 2 1 Appearance and Dimensions esssessseeeeeee ee eene nennen nennen 6 2 2 Installation Method 2 3 Wiring Chapter 3 Operation and Setup 6 00c ccc cece eee aS S ese eeseeea ees eseeeseeeaeeeeeeseeegs 20 3 1 Display Cc ESA 20 3 2iMetering Data Reading arenaer evnene evige ete 22 3 3 Meter parameter selling iicet ie aa A ES ER Rre Y PRI ER GS URNN eden 25 DPMS X1 Series Multi function Power Meter Chapter 4 COMMUNICATION 2 i c5 seisiciss canvas reaa NEA a EE r rba erat ee TER apo dpi ne 33 4 1 Introduction of Modbus Protocol sviisssvianmenskevnekt diameter ae 33 4 2 Format of Commuricatiori s oerte e eacus era iia See RAS and ag Rosin dead 37 4 3 Address Table etait ikea E EE 44 PRIMO DERE LLLI 49 Appendix A Technical Data and Specification rrrrrrrrrnrrrrrnnrrrarnnrrnnr
26. rameter setting mode 26 AMETEK POWER INSTRUMENTS Note P when the cursor moves to it Press lt gt to move the cursor from left to right The digit will flash The setting should be Press E to increase 1 one at a time Press P to decrease 1 one at a done by professional personnel after they time Press V A to confirm the former key input and press lt gt again to have read this user s go to the next screen In any screen press lt I gt and V A at the same time manual and under stand the application situation Before going into the parameter setting the address of the meter will to exit the parameter setting mode display for 3 seconds then go to the parameter setting mode There is a pass word input screen to protect the parameter setting mode A four digit Access code integer is used between 0000 and 9999 The default access code is 0000 Each time before going to the parameter setting mode a correct access code must be entered 27 DPMS X1 Series Multi function Power Meter Asking for access code as in Fig 3 11 Fig 3 11 Access Code Input First Screen Meter s Communication Address setting The address can be any integer between 1 and 254 As in fig 3 12 the communication address is 84 If an address change is needed press lt gt to move the cursor press P to increase and press E to decreas After the ex Fig 3 12 Communication Address Setting pected address
27. rent Display Fig 3 4 Frequency Display Fig 3 5 Power Display The second screen Display current As in fig 3 3 1 498 7A Press V A to go to the third screen The third screen Display frequency As in Fig 3 4 F 50 00Hz Press V A again to go back to the first screen Press P to display power related metering data First screen Display Power In Fig 3 5 P 350 6KW inductive Load com munication port busy DI1 DI3 close and DI2 DI3 open Press P to go to the second screen TEK POWER INSTRUMENTS The second screen Display reactive power In Fig 3 6 Q 29 81KW capacitive load Press P to go to the third screen Fig 3 8 Power Factor Display The third screen Apparent Power Display In fig 3 7 S 837 1KVA Press P to go to the forth screen Fig 3 6 Reactive Power Display The forth screen Display Power Factor In fig 3 8 PF 0 999 Press P to go back to the first screen Fig 3 7 Apparent Power Display 25 DPMS X1 Series Multi function Power Meter When the value of P Q and S is greater then 9999 the display will change to six digit mode For example in fig 3 9 P 23564 7 KW Press E to display energy Fig 3 9 Display Power with Six Digits In fig 3 10 E 32768 9 Kwh Energy display range is from 0 999999Kwh Over 106 Kwh the energy register will turn to 0 Fig 3 10 Energy Display In metering mode Press lt gt and V A to go to the pa
28. rnrrnerrnernrrnnrrnner 49 perpessi 54 AMETEK POWER INSTRUMENTS Chapter 1 Introduction 1 1 Description Powerful and Economical The DPMS X1 series power meter is design for single phase electrical value measurement using the latest microprocessor and digital signal processing technology It can measure True RMS Voltage Current Power Reactive Power Power Factor Frequency and Energy The meter can be used in high harmonic environments especially in middle and low voltage power systems electric equipment power system automation and factory automation The measurements are available via digital RS 485 communication port running Modbus TM Protocol The meter also has I O functions that combine the metering monitoring remote controlling and Analog output into one unit Small Size amp Easy Installation The DPMS X1 series was designed to standard DIN96 48 and reduced depth of 60mm It is suit able for small cabinet installation in switch gear It is asy to install on panels by using clips DPMS X1 Series Multi function Power Meter Easy to Use A large character LCD with blue back light makes the display easy to read even under low light conditions All the Value reading and parameter setting can be accessed by using 4 panel keys or the communication port The parameters are protected in EEPROM which will maintain its content after the meter is powered off High Reliability and Safety Multi isolation and immuni
29. sponse to read F V and I F 1388H 50 00Hz V 03E7H 99 9V 1 1386H 4 9984 is shown in Table 4 9 Byte Data1 Data1 Data2 Data2 Data3 Data3 CRC16 CRC16 Addr Fun A count hi lo hi lo hi lo hi lo 11H 03H 06H 13H 88H 03H E7H 13H 86H 32H E8H Table 4 9 Read F V and Message 43 DPMS X1 Series Multi function Power Meter 4 Control Relay Function Code 05 Query This message forces a single Relay either on or off Any Relay that exists within the meter can be orced to be either status on or off The address of Relays start at 0000H Relay1 0000H Relay2 0001H The data value FFOOH will set the Relay on and the value 0000H will turn it off all other values are illegal and will not affect that relay The example below is a request to meter number 17 to turn on Relay1 Addr Fun run DO addr lo Value hi Value lo CRC16 Hi Wen 11 05H 00H 00H FFH 00H 8EH AAH Table 4 10 Control Relay Query Message Response The normal response to the command request is to retransmit the message as received after the Relay status has been altered Addr Fun PO aaar DO addr lo Value hi Value lo CRC16 Hi Mrd 11H 05H 00H 00H FFH OOH 8EH AAH Table 4 11 Control Relay Response Message 44 5 Preset Reset Multi Register Function Code 16 Query AMETEK POWER INSTRUMENTS Function 16 allows the user to
30. ta of reg hi number of register high byte Data of reg lo number of register low byte CRC16 Hi CRC high byte CRC16 Lo CRC low byte 1 Read Status of Relay Function Code 01 Query This function code is used to read status of Relay in the meter 1 On 0 Off There are 2 Relays in the meter The Address of each Relay is Relay1 0000H and Relay2 0001H The following query is to read Relay Status of meter Number 17 40 AMETEK POWER INSTRUMENTS Data start Data start Data of Data of CRC16 CRC16 Addr Fun i z reg hi reg lo regs hi regs lo Hi Lo 11H 01H 00H 00H 00H 02H BFH 5BH Table 4 4 Relay status query message Response The meter response includes the meter address function code quantity of data byte the data and error checking An example response to read the status of Relay1 and Relay2 is shown in Table 4 5 The status of Relay1 and Relay2 is responding to the last 2 bits of the data Relay1 bit0 Relay2 bit1 The content of the data is Addr Fun Byte Data ERE CREIG 7 6 5 4 3 2 1 0 count Hi Lo 0 0 0 0 0 0 11 0 11H 01H 01H 02H D4H 89H MSB LSB Table 4 5 Relay status responds Relay 1 OFF Relay 2 ON 2 Read the Status of DI Function Code 02 Query 1 On 0 Off 41 DPMS X1 Series Multi function Power Meter There are 4 Dis in he meter The Address of each DI is DI120000H DI2 0001H DI3 0002H and DI
31. ty methods were adopted in the DPMS X1 design according to industry standards The meter can be installed in hazardous industry areas Also the meter was tested under IEC standards and EMC standards The meter house was designed by using glass polymer which is durable and antifire 1 2 Application Area The DPMS X1 series meter can be used to replace analog meters panel meters transducers and small RTUs in power distribution or power automation systems As it adopted a true RMS meas uring method the DPMS X1 meters are used for measuring voltage and current in high distortion nonlinear load systems such as VVVF Electric Ballast Computer etc AMETEK POWER INSTRUMENTS Power Distribution Automation Intelligent Electric Switch Gear Industry Automation Building Automation Energy Manage System Industry Apparatus 1 3 DPMS X1 Series DPMS X4 series power meters are used mainly in single phase or balanced three phase sys tems The meter has measuring communication and I O functions The DPMS X1 is a multi function meter with communication port For detail please refer to Table 1 1 DPMS X1 Series Multi function Power Meter m T ems Digital Input DI Relay Output RO 4 20mA or 0 1m or 0 5V Modbus Protocol e Function c Option Blank NA Table1 1 DPMS X1 Series Power Meter TEK POWER INSTRUMENTS User Notes Page DPMS X1 Series Multi function Power Meter Chapter 2 Installation 2 1 Appearance and Dim
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