Siemens SMART 7KT Manual
Multifunction meter
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- Manual (22 pages) ,
- Operating instructions manual (12 pages) ,
- Assembly instruction (5 pages)
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Summary of Contents for Siemens SMART 7KT
- Page 1 SMART 7KT0308 Manual MANUAL SMART 7KT Multifunction meter 7KT0308 (Multi Line LED Class 1) SMART 7KT power monitoring devices...
- Page 2 SMART 7KT0308 Manual Index SMART 7KT Introduction Multifunction meter Safety precautions 7KT0308 (Multi Line LED Class 1) Technical specification Installation Connection Configuration Manual Communication Maintenance 09/2022 SME7KT030800...
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Page 3: Purpose Of This Document
SMART 7KT0308 Manual Introduction 1.1 Purpose of this document This present manual describes the SMART 7KT multifunction meter. It is intended for the use of: • Planners • Plant operators • Commissioning engineers • Service and maintenance personnel 1.2 Required 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... -
Page 4: Safety Precautions
SMART 7KT0308 Manual Safety precautions DANGER Hazardous voltage will cause death or serious injury. Turn off and lock out all power supply before working on this device. NOTICE Installation and maintenance must be carried out by qualified personnel. This product has been designed for environment A. Use of this product in environment B may cause unwanted electromagnetic disturbances in which case the user may require to take adequate mitigation measures. Risk of damage: Please ensure the proper isolation of meter during the IR (Meggering) test. All safety related codifications, symbols and instructions that appear in this operating 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. -
Page 5: Technical Specification
SMART 7KT0308 Manual Technical specification 7KT0308 (Multi Line LED Class 1) Power Monitoring Device Panel instrument for std electrical values Protocol: Modbus RTU, Multi line LED Display Vaux: 95V to 240V AC x/1 or 5 A, Class 1 Measurements measuring procedure • for voltage measurement True RMS • for current measurement True RMS type of measured value detection complete voltage curve Sinusoidal or distorted measurable line frequency • initial value 45 Hz • full-scale value 65 Hz operating mode for measured value detection automatic line frequency detection Supply voltage design of the power supply SMPS power supply type of voltage of the supply voltage Degree of protection class protection class IP on the front IP54... - Page 6 -10 °C • maximum 55 °C ambient temperature during storage • minimum -20 °C • maximum 75 °C relative humidity at 25 °C without condensation during operation 85 % maximum installation altitude at height above sea level maximum 2 000 m degree of pollution IEC Standards Certifications SMART 7KT multifunction meter conforms to IEC Description Standard standards, IPC electronics assembly standard and Accuracy IEC 61557-12; RoHS IEC 62053-21 | Active Energy EMC requirements IEC 61326-1 Degree of protection test (IP) IEC 60529 Safety requirements IEC 61010-1 and IEC 61010-2-030...
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Page 7: Installation
SMART 7KT0308 Manual Assembly Installation For installing the meter Prepare the panel cutout with proper dimensions as shown below. OUTLINE PANEL CUTOUT Dimensions (in mm) Dimensions (in mm) -
Page 8: Wiring Guidelines
SMART 7KT0308 Manual Installation Guidelines 1. This equipment, being built-in-type, normally becomes a part of main control panel and in such case the terminals do not remain accessible to the end user after installation and internal wiring. 2. Conductors must not come in contact with the internal circuitry of the equipment or else it may lead to a safety hazard that may in turn endanger life or cause electrical shock to the operator. 3. Circuit breaker or mains switch must be installed between power source and supply terminals to facilitate power ‘ON’ or ‘OFF’ function. However this switch or breaker must be installed in a convenient position normally accessible to the operator. 4. Before disconnecting the secondary of the external current transformer from the equipment, make sure that the current transformer is short circuited to avoid risk of electrical shock and injury. 5. The equipment shall not be installed in environmental conditions other than those mentioned in this manual. 6. The equipment does not have a built-in-type fuse. Installation of external fuse of 0.5 A, Class gG type 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 connections are correct. 3. Use lugged terminals. 4. To reduce electromagnetic interference use of wires with adequate ratings and twists of the same in equal size shall be made with shortest connections. 5. Layout of connecting cables shall be away from any internal EMI source. -
Page 9: Typical Wiring Diagram
SMART 7KT0308 Manual Connection Typical Wiring Diagram 3 Phase - 4 Wire 2 Phase - 3 Wire 3 Ø - 4 Wire, 3 CT’s and 3 PT’s 2 Ø - 3 Wire, 2 CT’s and 2 PT’s 3 Phase - 4 Wire (commonly used) 3 Phase - 3 Wire 3 Ø - 4 Wire, 3 CT’S 3 Ø - 3 Wire, 2 CT’s and 2 PT’s... -
Page 10: Terminal Connections
SMART 7KT0308 Manual Typical Wiring Diagram (Continued) 1 Phase - 2 Wire 1 Ø - 2 Wire, 1 CT Terminal Connections... - Page 11 SMART 7KT0308 Manual Configuration There are 4 dedicated keys labelled as F1, F2, F3, F4. Use these 4 soft-touch keys to read meter parameters. The keys have multiple assignments. Function assignments and key labelling change according to the context of operator input. A short touch on the key triggers the function once. Holding the key for longer switches on the auto repeat function after approximately 1 s. The function of the key is triggered repeatedly while the key is touched continuously. Auto repeat is useful, for example, for fast incrementing of values when parameterizing the device. For reading serial number Touch and hold F4 key for 10 sec. to display 8-digit serial number only for 5 sec. Automatic / manual mode Touch F1 and F2 key to enter in configuration mode. Then change the page mode as automatic or manual as per requirement. Note: By default, unit operates in automatic mode. In automatic mode online pages scroll automatically at the rate of 5 seconds per page. In automatic mode when any key is touched, unit temporarily switches to manual mode and the appropriate page is displayed. If any key is not touched for 5 sec, unit resumes automatic mode. Password to start configuration When the meter is brought into the configuration mode by touching keys F1+F2, the first page that is displayed is the password page which shows the password 0000. Enter the password 1000 which is the default factor-set password by pressing the F2 key to move cursor left to right by one digit at a time and F1 key for increasing parameter values. After you enter the password of 1000, use F3 key to go to the next page which is the password change page and continue with parameterization. For the configuration setting mode Touch F1 + F2 keys for 5 seconds to enter or exit from the Configuration menu.
- Page 12 SMART 7KT0308 Manual Parameterization with function keys Config. Factory Network selection and wiring input Function Range or Selection page Setting Network selection Wiring Input Password 0000 to 9998 1000 Configuration mode Change Password No / Yes 3P4W 3P4W New Password 0000 to 9998 1000 3P3W 3P3W Network 3P4W 3P4W 1P2W (P1/P2/P3) 1P2W (P1/P2/P3)
- Page 13 SMART 7KT0308 Manual Reading of parameters Screen Touch Key Description number – Displays Line-Neutral voltage of three phase Touch F1 key Displays Line–Line voltage of three phase for clockwise Displays total percentage harmonics of Line – Neutral voltage of three phase scrolling and Displays total percentage harmonics of Line – Line voltage of three phase F2 for anticlockwise Displays total percentage harmonics of Average Line-Neutral and Average Line-Line voltage of three scrolling page for phases Online Page 1 Note: 1) For 3 Ø 3 wire system, only second, fourth, fifth screens will be available. (Only average line-line THD% will be displayed on fifth screen) 2) For 1 Ø 2 wire system, only first and third screens will be available." Touch F3 key for Displays current of three phase Online Page 2 Touch F1 key Displays neutral current for clockwise Displays total percentage harmonics of current of three phases scrolling and...
- Page 14 SMART 7KT0308 Manual Reading of parameters (Continued) Screen Touch Key Description number Touch F1 key for Displays three phase maximum demand of average current clockwise and F2 Displays ON hour for anticlockwise Note: scrolling page for 1) 1) For 3 Ø 3 wire system; first, second and third screens will be available. Online Page 4 2) For 1 Ø 2 wire system, only first and third screens will be available. Note: for 1 Ø 2 wire system, respective phase parameter will be displayed. Touch F1 key for Displays import active energy of first phase clockwise and F2 Displays import active energy of second phase for anticlockwise Displays import active energy of third phase scrolling page for Energy Page Displays export active energy of first phase Displays export active energy of second phase Displays export active energy of third phase Displays total import active energy of three phases Displays total export active energy of three phases Displays total active energy of three phases 10th Displays import reactive energy of first phase...
- Page 15 SMART 7KT0308 Manual Communication Protocol and interface Connection diagram for communication 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 Contact sales for PC based monitoring software to...
- Page 16 SMART 7KT0308 Manual Modbus register addresses list (Continued) Address Hex Address Parameter Address Hex Address Parameter 30090 Total Active energy 30145 3rd Harmonic of V1N 30092 Total Import Reactive energy 30147 4th Harmonic of V1N 30094 Total Export Reactive energy 30149 5th Harmonic of V1N 30096 Total Reactive energy 30151 6th Harmonic of V1N 30098 Total Apparent energy 30153 7th Harmonic of V1N 30100 ON hour 30155 8th Harmonic of V1N 30124 % THD of Voltage V1N...
- Page 17 SMART 7KT0308 Manual Modbus register addresses list (Continued) Address Hex Address Parameter Address Hex Address Parameter 30243 22nd Harmonic of V2N 30341 11th Harmonic of V12 30245 23rd Harmonic of V2N 30343 12th Harmonic of V12 30247 24th Harmonic of V2N 30345 13th Harmonic of V12 30249 25th Harmonic of V2N 30347 14th Harmonic of V12 30251 26th Harmonic of V2N 30349 15th Harmonic of V12 30253 27th Harmonic of V2N 30351 16th Harmonic of V12 30255 28th Harmonic of V2N 30353...
- Page 18 SMART 7KT0308 Manual Modbus register addresses list (Continued) Address Hex Address Parameter Address Hex Address Parameter 30439 30th Harmonic of V23 30597 19th Harmonic of I2 30441 31st Harmonic of V23 30599 20th Harmonic of I2 30503 2nd Harmonic of I1 30601 21st Harmonic of I2 30505 3rd Harmonic of I1 30603 22nd Harmonic of I2 30507 4th Harmonic of I1 30605 23rd Harmonic of I2 30509 5th Harmonic of I1 30607 24th Harmonic of I2 30511 6th Harmonic of I1 30609...
- Page 19 SMART 7KT0308 Manual Modbus register addresses list (Continued) Readable Parameters: Data Structure: Integer Length Address Parameter Range Address (Register) 40000 0x00 Password Min Value: 0 Max Value:9998 40001 0x01 Network Selection Value: 0 Meaning: 3P4W Value: 1 Meaning: 3P3W Value: 2 Meaning: 1P2W-P1 Value: 3 Meaning: 1P2W-P2 Value: 4 Meaning: 1P2W-P3 40002 0x02 CT Secondary Min Value: 1 Max Value: 5 40003...
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Page 20: Maintenance
Maintenance Guidelines • The equipment should be cleaned regularly 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. - Page 21 These instructions do not purport to cover all details or variations in Siemens. Any statements contained herein do not create new warranties equipment, or to provide for every possible contingency in connection or modify the existing warranty. with installation, operation, or maintenance. Should additional Trademarks - Unless otherwise noted, all names identified by ® are information be desired, please contact the local Siemens sales office. The registered trademarks of Siemens AG or Siemens Industry, Inc. The contents of this instruction manual shall not become part of or modify remaining trademarks in this publication may be trademarks whose use any prior or existing agreement, commitment, or relationship. The by third parties for their own purposes could violate the rights of the sales contract contains the entire obligation of Siemens. The warranty owner. contained in the contract between the parties is the sole warranty of Customer Care Toll free no. 1800 209 0987 Email: ics.india@siemens.com SACHIN ENTERPRISE Siemens Ltd. Product development is a continuous process. Consequently the data indicated in this Operating Instructions is subject to change without prior notice. For latest issue contact our sales offices.