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I273 GB I 04 14

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LOVATO ELECTRIC S.P.A.

24020 GORLE (BERGAMO) ITALIA
VIA DON E. MAZZA, 12
TEL. 035 4282111 
FAX (Nazionale): 035 4282200
FAX (International): +39 035 4282400
E-mail info@

L

ovato

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lectric.com

Web

www.

L

ovato

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lectric.com

DMG900 - DMG900T

Digital power analyzer - Power transducer

Instructions manual

GB

WARNING! 

– Carefully read the manual before the installation or use.
– This equipment is to be installed by qualified personnel, complying with current standards, to avoid damages or safety hazards. 
– Before any maintenance operation on the device, remove all the voltages from supply and measuring inputs and short-circuit the CT input terminals.
– The manufacturer cannot be held responsible for electrical safety in case of improper use of the equipment.
– Products illustrated herein are subject to alteration and changes without prior notice. Technical data and descriptions in the documentation are accurate, to

the best of our knowledge, but no liabilities for errors, omissions or contingencies arising therefrom are accepted.

– A circuit breaker must be included in the electrical installation of the building. It must be installed close by the equipment and within easy reach of the

operator. It must be marked as the disconnecting device of the equipment: IEC /EN 61010-1 § 6.11.2.

– Clean the instrument with a soft dry cloth; do not use abrasives, liquid detergents or solvents. 

INDEX

Page

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

1

Description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2

Touch screen functions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2

Neutral measurement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2

Measurement viewing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

2

Main menu  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

3

Table of display pages  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

4

Harmonic analysis page  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

5

Waveform page  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

5

Energy meters page  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

5

Hour counters page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

5

Trend graph page  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

6

Counters page  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

6

User pages  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

6

Time and date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

6

Password access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

7

Settings lock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

7

Expandability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

8

Additional resources  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

9

Communication channels  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

9

Inputs, outputs, internal variables, counters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

9

Limit thresholds  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

10

Boolean logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

10

Remote-controlled variables  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

10

Alarms  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

10

Event log  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

11

Tariffs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

11

Monthly energy counters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

12

Data logger function  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

12

Energy quality analysis  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

12

Selection of interface type (DMG900T)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

13

Setting of parameters (set-up)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

14

Table of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

15

Commands menu  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

21

Wiring test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

21

Technical characteristics  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

22

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

23

Wiring diagrams  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

24

Terminal arrangement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

25

Mechanical dimensions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

25

INTRODUCTION

DMG900

- The DMG900 power analyzer has been designed to combine the maximum possible easiness of operation together with a wide choice of advanced

functions. Thanks to its flush-mount 96x96mm housing, the DMG900 joins the modern design of the front panel with the tool-less mounting of the device body
and the expansion capability of the rear panel, where it is possible to mount plug-in modules of EXP… series.   The graphic, touch-screen LCD display offers a
user-friendly interface. The rich variety of functions, makes the DMG series multimeters the ideal choice for a wide range of applications.

DMG900T

- The DMG900T is the Transducer version of the DMG900, for DIN-rail mount. This device has the same characteristics as the DMG900, but has no

display and touch screen. Instead of the integrated display, the DMG900T has an interface board that consent the connection in one of the following modes:
– RS232 communication port
– RS485 communication port
– Remote display communication port for  DMG900RD
NOTE: When not differently specified, all the characteristics reported in the following part of the manual are referred to both models. In particular, every detail
that is in relation with the display and the touch screen can be referred to the DMG900T used in combination with the remote display unit DMG900RD.

Содержание DMG900

Страница 1: ...ssword access 7 Settings lock 7 Expandability 8 Additional resources 9 Communication channels 9 Inputs outputs internal variables counters 9 Limit thresholds 10 Boolean logic 10 Remote controlled variables 10 Alarms 10 Event log 11 Tariffs 11 Monthly energy counters 12 Data logger function 12 Energy quality analysis 12 Selection of interface type DMG900T 13 Setting of parameters set up 14 Table of...

Страница 2: ... not available the I4 input can be disabled and the measure will be calculated from the phase currents The dedicated display page shows Neutral earth voltage neutral current and THD of neutral current VIEWING OF MEASUREMENTS The and icons at the bottom right allow to scroll the pages one by one The page being viewed is written in the title bar To scroll the measure pages one by one it is also poss...

Страница 3: ...he main menu is made up of a group of graphic icons shortcuts that allow rapid access to measurements and settings Starting from normal viewing touch the central part of the display The main menu screen is displayed Touch the icon that represents the required function The selected icon is highlighted and the central part of the display shows the description of the function To activate the function...

Страница 4: ...O AV GR 16 PH N VOLTAGE HARMONIC ANALYSIS H2 63 V L1 V L2 V L3 17 PH N VOLTAGE WAVEFORMS L1 N L2 N L3 N 18 CURRENT HARMONIC DISTORTION THD I L1 THD I L2 THD I L3 HI LO AV GR 19 CURRENT HARMONIC ANALYSIS H2 63 I L1 I L2 I L3 20 CURRENT WAVEFORMS L1 L2 L3 N 21 ENERGY METERS kWh TOT kWh TOT kvarh TOT kvarh TOT kVA TOT PARTIAL 22 ENERGY TARIFFS TAR1 TAR8 23 MONTHLY ENERGY CONSUMPTION JAN DEC 24 TREND ...

Страница 5: ...ORM PAGE This page graphically views the waveform of the voltage and current signals read by the DMG900 It is possible to see one phase at a time selecting it by clicking on the icon with the desired phase The vertical scale amplitude is automatically scaled in order to fit the waveform on the screen in the best possible way The horizontal axis time shows two consecutive periods referred to the fu...

Страница 6: ...vider is set to 10 then the value will be incremented by one only after 10 pulses have been applied to the input With a combination of multiply and divide factor any ratio between counts and measurement can be achieved If the counter has no divide factor the screen will indicate the counter without fractional digits otherwise the counter will be displayed with two decimal digits The counters can b...

Страница 7: ...OK If the password code entered matches the User access code or the Advanced access code then the correspondent unlock message is shown Once unlocked the password the access rights last until the device is powered off the device is reset after quitting the set up menu the timeout period of two minutes elapses without any keystroke To quit the password entry screen press ESC key SETTINGS LOCK On th...

Страница 8: ...ndatory to install the sealable terminal block covers supplied with the multimeter When a DMG900 is powered on it automatically recognises the EXP modules that have been mounted For the DMG900T when it is not connected to a remote display DMG900RD to recognize the expansion modules it is necessary to put the DIP switches in the correct position see details on page 19 If the system configuration ha...

Страница 9: ... inputs are identified by code INPx where x is the number of the input In the same way digital outputs are identified by code OUTx The sequence number of I Os is simply based on their mounting position with a progressive numbering from left to right For instance the input INP1 is the input terminal closest to the base unit while the subsequent inputs will be named INP2 INP3 and so on The DMG900 su...

Страница 10: ...ving the following logic operations set to no operation The BOOLEAN LOGIC page displays for every variable BOO1 8 the status of the single operands that are involved in the logic operation and the final result that is the status of the selected Boolean variable REMOTE CONTROLLED VARIABLES REM DMG900 can manage up to 8 remote controlled variables REM1 REM8 Those are variables which status can be mo...

Страница 11: ...enti visualizzandoli sulla apposita pagina Tramite il pulsante dedicato è poi possibile attivare dei filtri in modo da visualizzare solo un certo tipo di eventi o solo un intervallo temporale If the synchronise input for the power integration is used then the tariff change becomes active when the sync signal triggers it otherwise the tariff change takes place immediately when the status of the sel...

Страница 12: ...thin the minimum energy quality parameters according to EN 50160 standard prescriptions In particular the DMG900 coupled with the EXP10 31 module allows to control the following phenomenon each identified by a reference code Small variations of integrated average voltage VLO VHI Large variations of integrated average voltage NLO NHI Harmonic distortion of voltage like THD or single harmonic levels...

Страница 13: ...h or without neutral When the distortion control mode is set to single harmonics HAR the thresholds different for each order of harmonic from the 2nd up to 25th are the ones defined in the dedicated table in the EN50160 reference standard SELECTION OF INTERFACE TYPE DMG900T The DMG900T is equipped with three interface ports that can be used alternatively it is not possible to connect more than one...

Страница 14: ... programming chapter In these two positions the DMG900T work as a Transducer that is it supplies the measurements through the serial port without a local visualization This configuration is used in combination with a remote supervision For details about the communication protocol format and addresses of the registers holding the measures please see the Modbus protocol manual for DMG series In case...

Страница 15: ... automatically and goes back to normal viewing PARAMETER TABLE M01 GENERAL UoM Default Range P01 01 CT primary A 5 1 10000 P01 02 CT secondary A 5 1 5 P01 03 Rated voltage V Aut Aut 50 500000 P01 04 Use VT OFF OFF ON P01 05 VT primary V 100 50 500000 P01 06 VT secondary V 100 50 500 P01 07 Wiring L1 L2 L3 N L1 L2 L3 N L1 L2 L3 L1 L2 L3 N BIL L1 L2 L3 BIL L1 N L2 L1 N P01 08 Rated frequency Hz Aut ...

Страница 16: ... backlight delay sec 30 5 600 P02 06 Default page return sec 60 OFF 10 600 P02 07 Default page VL L VL L VL N P02 08 Default sub page INST INST HI LO AVG MD GRAPH 1 8 P02 09 Display update time sec 0 5 0 1 5 0 P02 10 Plant description DESCR text 16 char P02 11 Aux window row 1 DESC DESC RTC kWh kvarh P02 12 Aux window row 2 RTC DESC RTC kWh kvarh P02 13 Buzzer sound ON OFF ON P02 14 Buzzer activat...

Страница 17: ...unication protocol selection P07 n 06 P07 n 07 P07 n 08 P07 n 13 TCP IP coordinates for application with Ethernet interface Not used for other types of interface modules P07 n 09 Enables the gatreway function See details in Communication channels chapter P07 n 10 Enabling TCP IP connection Server Awaits connection from a remote client Client Establishes a connection to the remote server P07 n 11 P...

Страница 18: ...eter ON the overcoming of a limit threshold LIMx the activation of an external input INPx one logic combination BOOx P010 n 02 Number of the channel x referred to previous parameter P010 n 03 Multiplying factor The pulse count is multiplied by this coefficient before being displayed P010 n 04 Dividing factor The pulse count is divided by this coefficient before being displayed If different from 1 ...

Страница 19: ... n 1 16 UoM Default Range P14 n 01 Output function OFF OFF ON SEQ LIMx BOOx ALAx PULx REMx P14 n 02 Channel number x 1 1 16 P14 n 03 Idle status OFF OFF ON M15 USER DEFINED PAGES PAGn n 1 4 Default Range P15 n 01 Page enabling OFF OFF ON P15 n 02 Title PAGn Text 16 char P15 n 03 Measurement 1 OFF OFF measurements P15 n 04 Measurement 2 OFF OFF measurements P15 n 05 Measurement 3 OFF OFF measuremen...

Страница 20: ...he selection the sensor must be wired to proper terminals See expansion module manual P17 n 02 Electrical parameter that controls the value of the analog output P17 n 03 and P17 n 04 Define the value of the electrical parameter that corresponds to an output to the minimum of the range 0mA 0V 5V etc P17 n 05 and P17 n 06 Define the value of the electrical parameter that corresponds to an output equ...

Страница 21: ...heck proper wiring of the DMG See wiring test chapter C 17 TOUCH SCREEN CALIBRATION Activates the manual re calibration of the touch screen panel C 18 RESET EVENT LOG Clears the event log memory both standard events and energy quality events C 19 RESET ENERGY QUALITY COUNTERS Clears the nergy quality events counters C 20 RESET ENERGY QUALITY MEMORY Clears the energy quality memory of the last year...

Страница 22: ...g and terminals Weight 570g 590g D048 type Auxiliary supply connected to a line with a phase neutral voltage 300V TECHNICAL CHARACTERISTICS Auxiliary supply Rated voltage Us 100 440V 110 250V Operating voltage range 90 484V 93 5 300V Frequency 45 66Hz Power consumption dissipation 3 9VA 3 4W max Immunity time for microbreakings 50ms D048 version auxiliary supply Rated voltage Us 12 48V Operating v...

Страница 23: ...ted it is possible to mount the terminal covers supplied with the instrument These terminal covers are sealable making impossible the tampering of the instrument and or the access to the screw terminals To install the terminal covers insert the side hooks into their housing and apply a light pressure until they snaps in Be aware of the match between the terminal block and the proper terminal cover...

Страница 24: ...L S1 S2 S2 I4 A O D 12 48VDC ARON connection 3 phase without neutral whit or without V4 P01 07 L1 L2 L3 S1 I3 CURRENT VOLTAGE V2 AUX SUPPLY A1 A2 V1 100 440VAC 110 250VDC L1 L3 L2 S2 I1 N V3 V4 S1 S2 I2 S1 TA1 TA2 S1 S2 I4 S2 L A D O 12 48VDC ARON connection 3 phase without neutral whit or without V4 P01 07 L1 L2 L3 L L1 TA3 S1 I3 CURRENT V2 VOLTAGE AUX SUPPLY 110 250VDC 100 440VAC A1 L3 L2 A2 V1 ...

Страница 25: ...I273 GB I 04 14 31100126 G B 25 DMG900 MECHANICAL DIMENSIONS mm 96 96 19 61 92 92 DMG900 TERMINALS POSITION A1 A2 ON 1 2 S1 S1 S2 S2 VN S2 S1 S1 S2 I1 I2 I3 I4 V3 V1 V2 V4 ...

Страница 26: ...PC RS232 DISPLAY TR A B SG ON DATA O N V4 A1 A2 V2 V1 V3 1 ON 2 S1 I1 S1 S2 S1 S2 I2 S2 I3 VN S2 S1 I4 RS485 51C2 cable PC RS232 RS485 connection DMG900T n 1 DMG900T n 31 SG A B TR RS485 TR B A SG RS485 PX1 A TR B SG PC Device addresses n 1 30 Repeat this wiring diagram Set as repeater B up to 255 devices PX1 B TR A SG TR A Device addresses n 31 60 SG DMG900T RS485 A TR B SG Set as repeater PX1 TR...

Страница 27: ... 14 31100126 G B DMG900T MECHANICAL DIMENSIONS mm 116 54 2 19 8 5 84 7 96 99 6 DMG900T TERMINALS POSITION RS232 DISPLAY TR A B SG ON DATA O N V4 A1 A2 V2 V1 V3 1 ON 2 S1 I1 S1 S2 S1 S2 I2 S2 I3 VN S2 S1 I4 RS485 27 ...

Страница 28: ...io 33 Accesso tramite password 34 Blocco impostazioni 34 Espandibilità 35 Risorse aggiuntive 36 Canali di comunicazione 36 Ingressi uscite variabili interne contatori 36 Soglie limite 37 Logica Booleana 37 Variabili da remoto 37 Allarmi 37 Lista eventi 38 Tariffe 38 Conteggio mensile energie 39 Funzione data logger 39 Analisi qualità dell energia 39 Selezione tipo di interfaccia DMG900T 40 Imposta...

Страница 29: ...ere disabilitato e la misura viene calcolata dalle correnti di fase Sulla apposita pagina vengono visualizzate la tensione neutro terra la corrente misurata di neutro ed il THD di corrente di neutro VISUALIZZAZIONE DELLE MISURE I simboli e in basso a destra consentono di scorrere le pagine di visualizzazione misure una per volta La pagina attuale è riconoscibile tramite la barra del titolo Per sco...

Страница 30: ...MENU PRINCIPALE Il menu principale è costituito da un insieme di icone grafiche che permettono l accesso rapido alle misure ed alle impostazioni Partendo dalla visualizzazione misure normale toccare la parte centrale del display Verrà visualizzato il menu rapido Toccare direttamente l icona che rappresenta la funzione desiderata L icona selezionata viene evidenziata e la scritta nella parte centra...

Страница 31: ...SIONI L N H2 63 V L1 V L2 V L3 17 FORMA D ONDA TENSIONI L N L1 N L2 N L3 N 18 DIST ARMONICA CORRENTE THD I L1 THD I L2 THD I L3 HI LO AV GR 19 ANALISI ARMONICA CORRENTE H2 63 I L1 I L2 I L3 20 FORMA D ONDA CORRENTE L1 L2 L3 N 21 CONTATORI DI ENERGIA kWh TOT kWh TOT kvarh TOT kvarh TOT kVA TOT PARZIALI 22 TARIFFAZIONE ENERGIA TAR1 TAR8 23 CONSUMO MENSILE ENERGIA GEN DIC 24 GRAFICO TREND 25 CONTAORE...

Страница 32: ...ù alto PAGINA FORME D ONDA Questa pagina rappresenta graficamente la forma d onda dei segnali di tensione e di correnti letti dal DMG900 E possibile vedere una fase per volta selezionandola cliccando sull icona della fase desiderata La scala verticale ampiezza è regolata automaticamente in modo da visualizzare al meglio possibile il segnale Sull asse orizzontale tempo vengono visualizzati 2 period...

Страница 33: ...a visualizzata verrà incrementata solo dopo 10 impulsi applicati all ingresso Con la combinazione di k moltiplicativo e frazionario si può ottenere qualsiasi rapporto di conversione Se il contatore non ha alcun coefficiente frazionario allora la sua visualizzazione sarà solo con numeri interi Altrimenti verranno visualizzate due cifre decimali I contatori possono essere azzerati tramite il menu co...

Страница 34: ... inserita corrisponde alla password livello Utente o livello Avanzato compare il relativo messaggio di sblocco Una volta sbloccata la password l accesso rimane abilitato fino a che l apparecchio viene disalimentato l apparecchio viene resettato in seguito all uscita dal menu impostazioni trascorrono più di 2 minuti senza che l operatore tocchi alcun tasto Con il tasto ESC si abbandona l impostazio...

Страница 35: ...tallati dei moduli EXP su dei multimetri della serie DMG è obbligatorio installare i coprimorsetti piombabili forniti con il multimetro Quando un DMG900 viene alimentato riconosce automaticamente i moduli EXP ad esso collegati Nel caso del DMG900T quando non collegato ad un display remoto DMG900RD per effettuare il riconoscimento è necessario posizionare i DIP switch nella opportuna posizione vede...

Страница 36: ...tali sono denominati INPx dove x rappresenta il numero dell ingresso Allo stesso modo le uscite digitali sono denominate OUTx La numerazione degli ingressi uscite si basa semplicemente sulla posizione di montaggio dei moduli di espansione con una numerazione progressiva da sinistra a destra Ad esempio l ingresso INP1 è il morsetto di ingresso più vicino al modulo base mentre i successivi preseguen...

Страница 37: ...zioni logiche impostate su nessuna operazione La pagina display LOGICA BOOLEANA visualizza per ciascuna variabile BOO1 8 lo stato dei singoli operandi che sono coinvolti nella operazione logica ed il risultato finale cioè lo stato della variabile Booleana selezionata VARIABILI DA REMOTO REM DMG900 ha la possibilità di gestire un massimo di 8 variabili comandate da remoto REM1 REM8 Si tratta di var...

Страница 38: ...izzandoli sulla apposita pagina Tramite il pulsante dedicato è poi possibile attivare dei filtri in modo da visualizzare solo un certo tipo di eventi o solo un intervallo temporale Se viene utilizzato l ingresso di sincronismo per l intervallo di integrazione allora il cambio tariffa viene effettuato in concomitanza con il sincronismo altrimenti il cambio di tariffa avviene al momento del cambio d...

Страница 39: ...sta funzione consente di controllare che la tensione e la frequenza misurate dall analizzatore solitamente quelle provenienti dal fornitore di energia rientrino nei parametri minimi di qualità dell energia secondo le indicazioni della norma EN 50160 In particolare il DMG900 in abbinamento al modulo EXP 10 31 permette di controllare le seguenti anomalie ciascuna identificata da una sigla Variazioni...

Страница 40: ...ollegamento con senza neutro Quando il controllo per la distorsione è impostato su singole armoniche HAR le soglie applicate differenziate per i vari ordini di armoniche dal 2 o al 25 mo sono quelle definite dalla apposita tabella riportata nella norma EN50160 SELEZIONE TIPO DI INTERFACCIA DMG900T Il DMG900T è provvisto di tre porte di interfaccia che possono essere utilizzate alternativamente non...

Страница 41: ...l DMG900T lavora come trasduttore cioè fornisce sul canale seriale tutte le misure che acquisisce senza una visualizzazione locale Questa configurazione viene utilizzata in presenza di una supervisione remota Per i dettagli a riguardo del protocollo di comunicazione formato ed indirizzo dei registri con le misure fare riferimento al manuale del protocollo Modbus della serie DMG Nel caso il DMG900T...

Страница 42: ...orna alla visualizzazione normale TABELLA PARAMETRI M01 GENERALE UdM Default Range P01 01 Primario TA A 5 1 10000 P01 02 Secondario TA A 5 1 5 P01 03 Tensione nominale V Aut Aut 50 500000 P01 04 Utilizzo TV OFF OFF ON P01 05 Primario TV V 100 50 500000 P01 06 Secondario TV V 100 50 500 P01 07 Tipo di collegamento L1 L2 L3 N L1 L2 L3 N L1 L2 L3 L1 L2 L3 N BIL L1 L2 L3 BIL L1 N L2 L1 N P01 08 Freque...

Страница 43: ...c 30 5 600 P02 06 Ritorno a pagina di default sec 60 OFF 10 600 P02 07 Pagina di default VL L VL L VL N P02 08 Sotto pagina di default INST INST HI LO AVG MD GRAPH 1 8 P02 09 Tempo di aggiornamento display sec 0 5 0 1 5 0 P02 10 Descrizione impianto DESCR text 16 char P02 11 Finestra ausiliaria riga 1 DESC DESC RTC kWh kvarh P02 12 Finestra ausiliaria riga 2 RTC DESC RTC kWh kvarh P02 13 Suono buz...

Страница 44: ...tocollo ASCII P07 n 04 Numero bit di stop P07 n 05 Scelta del protocollo di comunicazione P07 n 06 P07 n 07 P07 n 08 P07 n 13 Coordinate TCP IP per applicazioni con interfaccia Ethernet Non utilizzati con altri tipi di moduli di comunicazione P07 n 09 Abilitazione della funzione gateway Vedere dettagli nel paragrafo Canali di comunicazione P07 n 10 Attivazione della connessione TCP IP Server Atten...

Страница 45: ...e la messa in tensione del multimetro ON il superamento di una soglia LIMx l attivazione di un ingresso esterno INPx una condizione logica Booleana BOOx P010 n 02 Numero del canale x riferito al parametro precedente P010 n 03 K moltiplicativo Gli impulsi contati vengono moltiplicati per questo valore prima di essere visualizzati P010 n 04 K frazionario Gli impulsi contati vengono divisi per questo...

Страница 46: ...01 Funzione di uscita OFF OFF ON SEQ LIMx BOOx ALAx PULx REMx P14 n 02 Numero canale x 1 1 16 P14 n 03 Stato a riposo OFF OFF ON M15 PAGINE UTENTE PAGn n 1 4 Default Range P15 n 01 Abilitazione pagina OFF OFF ON P15 n 02 Titolo PAGn testo 16 char P15 n 03 Misura 1 OFF OFF tutte le misure P15 n 04 Misura 2 OFF OFF tutte le misure P15 n 05 Misura 3 OFF OFF tutte le misure P15 n 06 Misura 4 OFF OFF t...

Страница 47: ...rà essere effettuato sul morsetto opportuno Vedere manuale modulo di uscita P17 n 02 Grandezza elettrica da cui dipende il valore dell uscita analogica P17 n 03 e P17 n 04 Definiscono il valore della grandezza elettrica che corrisponde ad un valore in uscita al minimo del range 0ma 4mA 0V 5V ecc P17 n 05 e P17 n 06 Definiscono il valore della grandezza elettrica che corrisponde al massimo del rang...

Страница 48: ...collegamento del DMG Vedere capitolo Test collegamento C 17 CALIBRAZIONE TOUCH SCREEN Attiva la procedura di ricalibrazione manuale del touch screen C 18 AZZERAMENTO MEMORIA EVENTI Azzera la lista di eventi sia normali che per la qualità dell energia C 19 AZZER CONATATORI QUALITA ENERGIA Azzera i contatori di eventi della qualità dell energia C 20 AZZER MEMORIA QUALITA ENERGIA Azzzera la memoria a...

Страница 49: ...relevata da un sistema con tensione fase neutro 300V CARATTERISTICHE TECNICHE Alimentazione ausiliaria Tensione nominale Us 100 440V 110 250V Limiti di funzionamento 90 484V 93 5 300V Frequenza 45 66Hz Potenza assorbita dissipata 3 9VA 3 4W max Tempo di immunità alla microinterruzione 50ms Alimentazione ausiliaria versioni D048 Tensione nominale Us 12 48V Limiti di funzionamento 9 70V Assorbimento...

Страница 50: ...ti elettrici è possibile posizionare i coprimorsetti in dotazione Questi coprimorsetti sono sigillabili impedendo la manomissione dello strumento e l accesso ai morsetti di collegamento Per montare i coprimorsetti inserire i ganci nell apposita sede ed esercitare una lieve pressione fino a che si agganciano Attenzione all abbinamento fra la morsettiera ed il relativo coprimorsetto INSTALLAZIONE DM...

Страница 51: ...VDC Connessione ARON 3 fasi senza neutro con o senza V4 P01 07 L1 L2 L3 S1 I3 CURRENT VOLTAGE V2 AUX SUPPLY A1 A2 V1 100 440VAC 110 250VDC L1 L3 L2 S2 I1 N V3 V4 S1 S2 I2 S1 TA1 TA2 S1 S2 I4 S2 L A D O 12 48VDC Connessione ARON 3 fasi senza neutro con o senza V4 P01 07 L1 L2 L3 L L1 TA3 S1 I3 CURRENT V2 VOLTAGE AUX SUPPLY 110 250VDC 100 440VAC A1 L3 L2 A2 V1 S2 I1 N V3 V4 S1 S2 I2 S1 S1 S2 I4 S2 D...

Страница 52: ...I273 GB I 04 14 31100126 I 52 DIMENSIONI MECCANICHE DMG900 mm 96 96 19 61 92 92 DISPOSIZIONE MORSETTI DMG900 A1 A2 ON 1 2 S1 S1 S2 S2 VN S2 S1 S1 S2 I1 I2 I3 I4 V3 V1 V2 V4 ...

Страница 53: ...C RS232 DISPLAY TR A B SG ON DATA O N V4 A1 A2 V2 V1 V3 1 ON 2 S1 I1 S1 S2 S1 S2 I2 S2 I3 VN S2 S1 I4 RS485 51C2 cable PC RS232 Connessione mediante RS485 DMG900T n 1 DMG900T n 31 SG A B TR RS485 TR B A SG RS485 PX1 A TR B SG PC Device addresses n 1 30 Repeat this wiring diagram Set as repeater B up to 255 devices PX1 B TR A SG TR A Device addresses n 31 60 SG DMG900T RS485 A TR B SG Set as repeat...

Страница 54: ...14 31100126 I 54 DIMENSIONI MECCANICHE DMG900T mm 116 54 2 19 8 5 84 7 96 99 6 DISPOSIZIONE MORSETTI DMG900T RS232 DISPLAY TR A B SG ON DATA O N V4 A1 A2 V2 V1 V3 1 ON 2 S1 I1 S1 S2 S1 S2 I2 S2 I3 VN S2 S1 I4 RS485 ...

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