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SMART 7KT0310 Manual

Communication

7

Protocol and interface

Protocol: Modbus RTU
Interface: Integrated RS485 interface

Communication parameters

Communication address 

1 to 255

Transmission mode 

Half duplex

Data types 

Float and Integer

Transmission distance 

 500m maximum

Transmission Speed 

300, 600, 1200, 2400, 4800, 
9600, 19200 (in bps)

Parity

 None, Odd, Even

Stop bits

1 or 2

Response Time

100ms Max & Independent, at 

Baud rate

Connection diagram for communication

RS485-RS232

Converter

Master

Suggested

terminating resistor

(120 ohm, ¼ watt)

F2

F3

F4

F1

F2

F3

F4

F1

F2

F3

F4

F1

Contact sales for PC based monitoring software to 
communicate with the meters.

Modbus register addresses list

Readable Parameters: [Length (Register): 2; Data Structure: Float]

Address 

Hex Address 

Parameter 

30000 

0x00 

Voltage V1N 

30002 

0x02 

Voltage V2N 

30004 

0x04 

Voltage V3N 

30006 

0x06 

Average Voltage LN 

30008 

0x08 

Voltage V12 

30010 

0x0A 

Voltage V23 

30012 

0x0C 

Voltage V31 

30014 

0x0E 

Average Voltage LL 

30016 

0x10 

Current I1 

30018 

0x12 

Current I2 

30020 

0x14 

Current I3 

30022 

0x16 

Average Current 

30024 

0x18 

kW1 

30026 

0x1A 

kW2 

30028 

0x1C 

kW3 

30030 

0x1E 

kVA1 

30032 

0x20 

kVA2 

30034 

0x22 

kVA3 

30036 

0x24 

kVAr1 

Address 

Hex Address 

Parameter 

30038 

0x26 

kVAr2 

30040 

0x28 

kVAr3 

30042 

0x2A 

Total KW 

30044 

0x2C 

Total KVA 

30046 

0x2E 

Total KVAr 

30048 

0x30 

PF1 

30050 

0x32 

PF2 

30052 

0x34 

PF3 

30054 

0x36 

Average PF 

30056 

0x38 

Frequency 

30058 

0x3A 

Total net kWh 

30060 

0x3C 

Total net kVAh 

30062 

0x3E 

Total net kVArh 

30064 

0x40 

kW Max Active Power 

30066 

0x42 

kW Min Active Power 

30068 

0x44 

kVAr Max Reactive Power 

30070 

0x46 

kVAr Min Reactive Power 

30072 

0x48 

kVA Max Apparent Power 

30084 

0x54 

kWh1 (Imp) 

Содержание 7KT0310

Страница 1: ...1 SMART 7KT0310 Manual MANUAL SMART 7KT Multifunction meter 7KT0310 SMART 7KT power monitoring devices ...

Страница 2: ...Introduction 3 2 Safety precautions 4 3 Technical specification 5 4 Installation 7 5 Connection 9 6 Configuration 10 7 Communication 14 8 Maintenance 19 SMART 7KT Multifunction meter 7KT0310 Manual Index 01 2022 SME7KT03100122 ...

Страница 3: ...uired basic knowledge A general knowledge of the field of electrical engineering is required to understand this manual Knowledge of the relevant safety regulations and standards is required for installing and connecting the device 1 3 Components of the product The carton for the products contain 1 SMART 7KT meter 1 set of clamps 4 clamps for mounting the meter on the panel door 1 Gasket 1 Operatin...

Страница 4: ...ng manual or on the equipment must be strictly followed to ensure the safety of the operating personnel as well as the instrument If the equipment is not used in a manner specified by the manufacturer it might impair the protection provided by the equipment Do not use the equipment if there is any mechanical damage Ensure that the equipment is supplied with correct voltage CAUTION 1 Read complete i...

Страница 5: ... power failure Retains all energy values On hours counter value and configuration settings in case of power failure CT PT Settings CT Type Measurement C T FS 10 CT Primary 1A 5A to 10 000A Programmable for any Value 1A to 10 000A when CT secondary is 1 5A to 10 000A when CT secondary is 5 CT Secondary 1A or 5A Programmable Burden 0 5 VA 5A per phase PT Primary 100V to 500kV Programmable for any va...

Страница 6: ...ale Neutral current 1 of full scale Frequency 0 1 For L N Voltage 20V For L L Voltage 35V Power factor 0 01 Digit Active power 1 Reactive power 1 Apparent power 1 Active energy Class 1 as per IEC 62053 21 Reactive energy Class 2 as per IEC 62053 23 Apparent energy 1 Phase angle of 3 phases 1 THD Current 1 THD Voltage 1 Harmonics Current 1 Harmonics Voltage 1 When measuring on external current tran...

Страница 7: ... into the slots in their respective locations 3 Push Slide all 4 clamps towards the panel evenly till the lowest possible tooth of the clamp is engaged Ensure the meter is properly tightened and it does not move PANEL GASKET UNIT 1 2 3 4 Base clamp position Base clamp position SLIDING CLAMP SLIDING CLAMP Note Terminal screw tightening torque 0 7 N m to 0 8 N m 6 In Lb to 7 In Lb The distance to be...

Страница 8: ...n of external fuse of rating 275V AC 0 5Amp for electrical circuitry is highly recommended 7 Remove the scratch guard from the meter display during commissioning of the panel Wiring Guidelines 1 To prevent the risk of electric shock power supply to the equipment must be kept OFF while doing the wiring arrangement 2 Wiring shall be done strictly according to the terminal layout Confirm that all con...

Страница 9: ...RAM 3 Phase 4 Wire commonly used 3 Ø 4 Wire 3 CT S 3 Ø 4 Wire 3 CT S and 3 PT S S2 S1 S2 S1 S2 S1 N V2 V3 LOAD LINE L1 L2 L3 N I1 I2 I3 V1 DI RS485 L N L N SMART 7KT Voltage upto 500V without PT LINE DI RS485 L N L N LOAD L1 L2 L3 N S2 S1 S2 S1 S2 S1 N V1 V2 V3 I1 I2 I3 SMART 7KT Voltage 100V 500kV with PT Circuit Diagram ...

Страница 10: ...and 2PTs 1 Phase 2 Wire 1 Ø 2 Wire 1 CT S2 S1 S2 S1 S2 S1 V1 N V2 V3 LOAD LINE L1 L2 L3 I1 I2 I3 DI RS485 L N L N SMART 7KT S2 S1 S2 S1 S2 S1 V1 N V2 V3 LOAD LINE L1 N I1 I2 I3 DI RS485 L N L N SMART 7KT Circuit Diagram Continued All Fuse Type 0 5A Class gG ...

Страница 11: ...tomatic mode online pages scroll automatically at the rate of 5 seconds per page In automatic mode when any key is pressed unit temporarily switches to manual mode and the appropriate page is displayed If any key is not pressed for 5 sec unit resumes automatic mode Password to start configuration When the meter is brought into the configuration mode by pressing keys F3 F4 the first page that is di...

Страница 12: ... Page sequence 9 1 to 22 9 16 10 Page sequence 10 1 to 22 10 Config page Function Range or Selection Factory Setting 16 11 Page sequence 11 1 to 22 11 16 12 Page sequence 12 1 to 22 12 16 13 Page sequence 13 1 to 22 13 16 14 Page sequence 14 1 to 22 14 16 15 Page sequence 15 1 to 22 15 16 16 Page sequence 16 1 to 22 16 16 17 Page sequence 17 1 to 22 17 16 18 Page sequence 18 1 to 22 18 16 19 Page ...

Страница 13: ...third phase and frequency 4 Displays average value of voltage current and power factor of three phase and frequency Note 1 For 3 Ø 3 wire system voltage current power factor and frequency will be line to line 2 For 1 Ø 2 wire system only first third fifth sixth and seventh screens will be available Press F3 to navigate to each screen 1 Displays power factor of three phase and average power factor 2 ...

Страница 14: ... energy of second phase 12 Displays import reactive energy of third phase 13 Displays export reactive energy of first phase 14 Displays export reactive energy of second phase 15 Displays export reactive energy of third phase 16 Displays total import reactive energy of three phase 17 Displays total export reactive energy of three phase 18 Displays total net reactive energy of three phase 19 Displays...

Страница 15: ...cture Float Address Hex Address Parameter 30000 0x00 Voltage V1N 30002 0x02 Voltage V2N 30004 0x04 Voltage V3N 30006 0x06 Average Voltage LN 30008 0x08 Voltage V12 30010 0x0A Voltage V23 30012 0x0C Voltage V31 30014 0x0E Average Voltage LL 30016 0x10 Current I1 30018 0x12 Current I2 30020 0x14 Current I3 30022 0x16 Average Current 30024 0x18 kW1 30026 0x1A kW2 30028 0x1C kW3 30030 0x1E kVA1 30032 ...

Страница 16: ...N 30191 0BF 26th Harmonic of V1N Modbus register addresses list Continued Address Hex Address Parameter 30193 0C1 27th Harmonic of V1N 30195 0C3 28th Harmonic of V1N 30197 0C5 29th Harmonic of V1N 30199 0C7 30th Harmonic of V1N 30201 0C9 31st Harmonic of V1N 30203 0CB 2nd Harmonic of V2N 30205 0CD 3rd Harmonic of V2N 30207 0CF 4th Harmonic of V2N 30209 0D1 5th Harmonic of V2N 30211 0D3 6th Harmoni...

Страница 17: ...3 30387 183 4th Harmonic of V23 30389 185 5th Harmonic of V23 30391 187 6th Harmonic of V23 Address Hex Address Parameter 30393 189 7th Harmonic of V23 30395 18B 8th Harmonic of V23 30397 18D 9th Harmonic of V23 30399 18F 10th Harmonic of V23 30401 191 11th Harmonic of V23 30403 193 12th Harmonic of V23 30405 195 13th Harmonic of V23 30407 197 14th Harmonic of V23 30409 199 15th Harmonic of V23 30...

Страница 18: ... Harmonic of I2 30583 247 12th Harmonic of I2 30585 249 13th Harmonic of I2 30587 24B 14th Harmonic of I2 30589 24D 15th Harmonic of I2 30591 24F 16th Harmonic of I2 Modbus register addresses list Continued Address Hex Address Parameter 30593 251 17th Harmonic of I2 30595 253 18th Harmonic of I2 30597 255 19th Harmonic of I2 30599 257 20th Harmonic of I2 30601 259 21st Harmonic of I2 30603 25B 22n...

Страница 19: ...t Page 22 Last Page 1 40021 0x15 Page Address Sequence 1 22 1 First Page 22 Last Page 1 40022 0x16 Page Address Sequence 1 22 1 First Page 22 Last Page 1 40023 0x17 Page Address Sequence 1 22 1 First Page 22 Last Page 1 40024 0x18 Page Address Sequence 1 22 1 First Page 22 Last Page 1 40025 0x19 Page Address Sequence 1 22 1 First Page 22 Last Page 1 40026 0x1A Page Address Sequence 1 22 1 First Pa...

Страница 20: ...ly to avoid blockage of ventilating parts Clean the equipment with a clean dry or damp cloth Do not use any cleaning agent other than water Disposal and recycling Dispose of or recycle the module in accordance with the applicable laws and regulations in your country ...

Страница 21: ...esired please contact the local Siemens sales office The contents of this instruction manual shall not become part of or modify any prior or existing agreement commitment or relationship The sales contract contains the entire obligation of Siemens The warranty contained in the contract between the parties is the sole warranty of Siemens Any statements contained herein do not create new warranties ...

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