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TECHNICAL

DATA

18

User’s Manual

6

TECHNICAL DATA

In following chapter all technical data regarding operation of multifunction transducers is presented.

A

PPLIED STANDARDS

19

A

CCURACY

19

M

ECHANICAL CHARACTERISTICS OF INPUT

20

E

LECTRICAL CHARACTERISTICS OF INPUT

20

C

ONNECTION

21

A

NALOGUE OUTPUT

21

C

OMMUNICATION

22

E

LECTRONIC FEATURES

22

S

AFETY FEATURES

23

D

IMENSIONS

24

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Содержание MT416

Страница 1: ...User s Manual 1 Programmable AC Voltage Transducer MT416 Programmable AC Current Transducer MT418 September 2020 Version 3 00 ...

Страница 2: ...ii User s Manual Title UserandInstallationmanual ...

Страница 3: ...nstallation and use of measuring transducer Installation and use of a device also includes handling with dangerous currents and voltages therefore should be installed operated serviced and maintained by qualified personnel only ISKRA d o o assumes no responsibility in connection with installation and use of the product If there is any doubt regarding installation and use of the system in which the...

Страница 4: ...educe the disposal of waste It also seeks to improve the environmental performance of all operators involved in the life cycle of electrical and electronic equipment Compliance of the product with European CE directives Important A current transformer secondary should be short circuited before connecting the transducer Disposal It is strongly recommended that electrical and electronic equipment WE...

Страница 5: ...IARY POWER SUPPLY 8 3 SETTINGS 9 INTRODUCTION 10 MIQEN SOFTWARE 10 SETTING PROCEDURE 11 GENERAL SETTINGS 11 SERIAL COMMUNICATION COM1 12 SECURITY 12 INPUTS AND OUTPUTS 14 4 MEASUREMENTS 16 EXPLANATION OF BASIC CONCEPTS 17 CALCULATION AND DISPLAY OF MEASUREMENTS 17 PRESENT VALUES 17 6 TECHNICAL DATA 18 APPLIED STANDARDS 19 ACCURACY 19 MECHANICAL CHARACTERISTICS OF INPUT 20 ELECTRICAL CHARACTERISTIC...

Страница 6: ...BASIC DESCRIPTION AND OPERATION vi User s Manual 7 ABBREVIATION GLOSSARY 25 8 APPENDICES 26 APPENDIX A MODBUS COMMUNICATION PROTOCOL 26 APPENDIX C CALCULATIONS EQUATIONS 29 ...

Страница 7: ... chapter presents basic information about multifunction transducers required to understand its purpose applicability and basic features connected to its operation In this chapter you will find INTRODUCTION 2 DESCRIPTION OF THE DEVICE 3 PURPOSE AND USE OF DIFFERENT TYPES OF MEASURING TRANSDUCERS 4 ...

Страница 8: ...8 symbol next to data 1 1 1 Description of symbols Subchapter Symbols next to the subchapters indicate accessibility of functions described Accessibility of functions is indicated with the following symbols Function accessible via communication MiQen software PLEASE NOTE For unknown technical terms please refer to Glossary on the next page USER INFORMATION For unknown technical terms please refer ...

Страница 9: ...LED indicators Serial communication RS485 or RS232 is connected with screw in connector USB can be connected through mini USB B type connector at the bottom of housing behind removable cap IT IS INTENTED ONLY FOR QUICK SETUP BY MIQEN SOFTWARE PRIOR INSTALLING THE INSTRUMENT LED indicator is intended for POWER ON signalling red symbol on the front panel Analogue output Analogue output is connected ...

Страница 10: ... load independent DC current or voltage which is proportional to the TRMS measured value for the purpose of regulation of analogue and or digital devices 1 3 2 Programmable AC Current transducer MT418 MT418 is intended for measuring and monitoring single phase current or frequency Input current is electrically insulated from the system by means of current transformer MT418 measures TRMS current va...

Страница 11: ...fied person shall therefore perform connection Iskra d o o does not take any responsibility regarding the use and connection If any doubt occurs regarding connection and use in the system which device is intended for please contact a person who is responsible for such installations In this chapter you will find INTRODUCTION 6 MOUNTING 6 ELECTRICAL CONNECTION 6 COMMUNICATION CONNECTION 7 CONNECTION...

Страница 12: ...anel mounting It should be mounted on a 35 mm DIN rail by means of one plastic fastener Before installation fastener should be in open position pulled After device is on place fastener is locked pushed to close position Electrical connection Voltage inputs of programmable AC measuring transducer can be connected directly to low voltage network or via appropriate voltage measuring transformer to me...

Страница 13: ...1 RS232 RS232 communication is intended for direct connection of the programmable AC measuring transducer to the personal computer Check the sticker on top of the instrument for correct connection of terminals 2 4 2 RS485 RS485 communication is intended for connection of devices to network where several instruments with RS485 communication are connected to a common communication interface We recom...

Страница 14: ...el choose and connect the power supply voltage Connection of universal power supply to terminals 13 and 14 Connection of transformer 110 V power supply terminals 13 and 14 Connection of transformer 230 V power supply terminals 13 and 14 WARNING For safety purposes it is important that all three wires Line Neutral and Protective Earth are firmly connected They should be connected only to the design...

Страница 15: ...e displayed in the right part by clicking any of the stated parameters In this chapter you will find detailed description of all Multifunction tranduscers features and settings Chapter is organized in a way to follow settings organisation as in setting software MiQen INTRODUCTION 10 MIQEN SOFTWARE 10 SETTING PROCEDURE 11 GENERAL SETTINGS 11 SERIAL COMMUNICATION COM1 12 SECURITY 12 INPUTS AND OUTPU...

Страница 16: ...grades These segments are easily accessed by means of five icons on the left side DEVICES MANAGEMENT Select the instrument in a favourite s line Use the network explorer to set and explore the devices network Communication parameters of all devices and their addresses in network can be easily set INSTRUMENT SETTINGS Multi Register Edit technology assures a simple modification of settings that are ...

Страница 17: ...ial for programmable AC measuring transducer They are divided into four additional sublevels Connection Communication and Security 3 4 1 Description and Location Two parameters that are intended for easier recognition of a certain unit They are especially used for identification of the device or location on which measurements are performed 3 4 2 Average interval The averaging interval defines the ...

Страница 18: ...first level PL1 settings of a real time clock can be changed and energy meters and MD can be reset 2 At the second level PL2 the access to all data that are protected with the first level PL1 and setting of all other parameters in the SETTINGS menu are available 3 A backup password BP is used if passwords at levels 1 PL1 and 2 PL2 have been forgotten and it is different for each device depending o...

Страница 19: ... which the access is unlocked at the moment Password disabling A password is disabled by setting the AAAA password PLEASE NOTE A factory set password is AAAA at both access levels L1 and L2 This password does not limit access Password and language Language change is possible without password input When language is changed from or to Russian character transformation has to be taken in to account Ch...

Страница 20: ...gue output full scale ranges DC current output DC voltage output 0 1 mA 0 1 V 0 5 mA 0 10 mA 0 10 V 0 20 mA Output signal Defines the shape and up to 5 break points of an analogue output For intrinsic error for analogue output with bent or linear zoom characteristic multiply accuracy class with correction factor c Correction factor c the highest value applies Linear characteristic Bent characteris...

Страница 21: ...nalogue output Defines the average interval for measurements on the analogue output Available settings are from 1 period 0 02 sec by 50 Hz up to 256 periods 5 12 sec by 50 Hz 3 7 2 Reset maximal MD values MT418 Current and stored MDs are reset 3 7 3 Reset the last MD period MT418 Current MD value is reset ...

Страница 22: ...EMENTS 16 User s Manual 4 MEASUREMENTS In the following chapters the device operation is explained more in detail EXPLANATION OF BASIC CONCEPTS 17 CALCULATION AND DISPLAY OF MEASUREMENTS 17 PRESENT VALUES 17 ...

Страница 23: ... and display of measurements This chapter deals with capture calculation and display of all supported quantities of measurement Detailed description with formulas is shown in chapter Equations Present values Voltage Instrument measures real effective trms value of phase voltage U connected to the meter Voltage measurement is available via communication 4 4 1 Current Instrument measures real effect...

Страница 24: ... data regarding operation of multifunction transducers is presented APPLIED STANDARDS 19 ACCURACY 19 MECHANICAL CHARACTERISTICS OF INPUT 20 ELECTRICAL CHARACTERISTICS OF INPUT 20 CONNECTION 21 ANALOGUE OUTPUT 21 COMMUNICATION 22 ELECTRONIC FEATURES 22 SAFETY FEATURES 23 DIMENSIONS 24 ...

Страница 25: ...r electrical equipment for measurement control and laboratory use Part 1 General requirements Accuracy Total accuracy measurements and analogue output according to EN 60688 is presented as percentage of range of the measurand s nominal value except when it is stated as an absolute value Measured values Range Accuracy class Trms current I1 MT418 1 5 10 A 0 5 0 2 Maximum current MT418 12 A 0 5 0 2 T...

Страница 26: ...Max allowed value 1 2 UN permanently 2 UN 10s Minimal measurement 10 mV sinusoidal Maximal measurement 600 VL N Input impedance 500 k Consumption U2 500k Current input Max current on output short circuit voltage output 33 mA Nominal values 1 5 10 A Rated current IN 5 A Max allowed value thermal 15 A continuous 20 IN 5 1s Min measurement 2 mA sinusoidal Max measurement 12 A sinusoidal Frequency Rat...

Страница 27: ...ic No of break points 5 Output value limits 120 of nominal output Response time Input output 100 ms 1 Response time Fast Input output 50 ms 1 Residual ripple 1 p p Residual ripple Fast 2 p p DC Current output Output range values 0 100 0 1 mA Range 1 0 5 mA Range 2 0 10 mA Range 3 0 20 mA Range 4 Other ranges possible by MiQen software Burden voltage 10 V External resistance RBmax 10 V IoutN DC Vol...

Страница 28: ... rate 2 400 to 115 200 bit s USB 2 0 1 Not for frequency frequency response time typical 300 ms maximum 3000 ms 2 After installation of instrument onto DIN rail not accessible any more Electronic features Response time Input communication All calculations are averaged over an interval of between 8 to 256 periods Preset interval is 64 periods which is 1 28 second at 50 Hz Average interval below 64 ...

Страница 29: ...ux power supply 5200 VACtrms Output COM 500 VACtrms EMC Directive on electromagnetic compatibility 2004 108 EC Acc to EN 61326 1 Ambient conditions Ambient temperature usage group II 0 15 30 45 C Acc to IEC EN 60688 Operating temperature 30 to 70 C Storage temperature 40 to 70 C Average annual humidity 93 r h Altitude 2000 m Enclosure DIN ANSI RD500 ABS self extinguish ability in compliance with U...

Страница 30: ...TECHNICAL DATA 24 User s Manual Dimensions Construction Appearance Programmable AC measuring transducers MT416 418 ...

Страница 31: ...Iskra MIS instruments AC Alternating voltage current DC Direct voltage current THD Total harmonic distortion MD Measurement of average values in time interval Maximum Demand Mv Sample factor Defines a number of periods for measuring calculation on the basis of measured frequency Mp Average interval Defines frequency of refreshing displayed measurements on the basis of a Sample factor Hysteresis ex...

Страница 32: ...ation Modbus protocol is a widely supported open interconnect originally designed by Modicon The memory reference for input and holding registers is 30000 and 40000 respectively REGISTER TABLE FOR THE ACTUAL MEASUREMENTS The tables below represent the complete set of MODBUS register map VERSION 1 Parameter MODBUS Register Type Start End Frequency 30105 30106 T5 U1 30107 30108 T5 MT416 I1 30126 301...

Страница 33: ...57 30058 T5 MT418 THD HARMONIC DATA U1 THD 30639 T16 MT416 I1 THD 30645 T16 MT418 Internal Temperature 30181 T17 DEMAND VALUES DYNAMIC DEMAND VALUES I1 30175 30176 T5 MT418 MAX DEMAND SINCE LAST RESET I1 30207 30208 T5 MT418 All other MODBUS registers are a subject to change For the latest MODBUS register definitions go to ISKRA MIS s web page https www iskra eu en ...

Страница 34: ...er Factor 32 bit Sign Import Export 00 FF Sign Inductive Capacitive 00 FF Unsigned Value 16 bit 4 decimal places Example 0 9876 CAP 00FF 2694 16 T9 bits 31 24 bits 23 16 bits 15 08 bits 07 00 Time 32 bit 1 100s 00 99 BCD Seconds 00 59 BCD Minutes 00 59 BCD Hours 00 24 BCD Example 15 42 03 75 7503 4215 16 T10 bits 31 24 bits 23 16 bits 15 00 Date 32 bit Day of month 01 31 BCD Month of year 01 12 BC...

Страница 35: ...EQUATIONS Calculations Definitions of symbols No Symbol Definition 1 Mv Sample factor 2 MP Average interval 3 Uf Phase voltage U1 U2 or U3 4 N Total number of samples in a period 5 n Sample number 0 n N 6 in Current sample n 7 ufn Phase voltage sample n ...

Страница 36: ...periods above 65Hz Example 400 Hz MV 7 Current 𝐼𝑇𝑅𝑀𝑆 𝑖𝑛 2 𝑁 𝑛 1 𝑁 Phase current N 128 samples in a period up to 65 Hz N 128 samples in more periods above 65 Hz THD 𝐼 𝑇𝐻𝐷 𝐼𝑛2 𝑁 𝑛 2 𝐼1 100 Current THD I1 value of first harmonic n number of harmonic 𝑈 𝑇𝐻𝐷 𝑈𝑛2 𝑁 𝑛 2 𝑈1 100 Voltage THD U1 value of first harmonic n number of harmonic ...

Страница 37: ...Published by Iskra d o o Subject to change without notice Version 3 00 September 2020 EN K22 496 501 ...

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