EMH metering LZQJ-SGM Operating Instructions Manual Download Page 22 | Manualshive

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This description provides the basis for the following possible wiring:

The electrical data interfaces RS232, RS485 and CL0 are implemented

by means of spring-loaded terminals.
The assignment is as follows:

RS232

Tx

Rx

RS GND

23

24

27

RS485

A(−)

B(+)

RS GND

23

24

27

CL0

+

NC

−

23

24

Output

S0: Opto-MOSFET

semiconductor relay

ES: External control

input

Input

Data

interface

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Summary of Contents for LZQJ-SGM

Page 1: ... SGM Digital 4 quadrant combi meter EN Issue date 14 June 2022 subject to technical changes LZQJ SGM2 IM E 1 09 Scope of delivery 2 Important information 2 Technical data 5 Housing display and control elements 7 Installation and start up 13 Functions and operation 24 Installation control register C 86 0 35 Error register F F 37 COMBI MASTER 2 0 configuration and read out program 38 Communication m...

Page 2: ...s are part of the documentation These instructions list all the different device versions Some of the fea tures described herein may not be applicable to your particular device Please see the user manual for more comprehensive information about the device Please also observe all the documents included with other components such as the optical communication unit for example Symbols used DANGER Indi...

Page 3: ...s intended to be used solely for the measurement of electrical energy in inside spaces and it must not be operated outside the speci fied technical data see name plate Make sure that the meter is suitable for the intended application Maintenance and warranty instructions The device requires zero maintenance It is not permitted to make any repairs independently in the event of any damage e g due to...

Page 4: ...Metal parts Recyclable material Sort such material and send it for recycling Plastic parts Send sorted plastic parts to a recycling plant re granulation or where applicable to a waste inciner ation plant thermal energy generation Batteries Take safety precautions against short circuits before disposing of the batteries Batteries can leak or self ignite Dispose of the batteries in their original pa...

Page 5: ...e maximum load of the meter and the installation environ ment in terms of type cross section voltage and temperature y Attach ferrules to flexible wires y Observe the maintenance and warranty instructions y If the mains power fails and then returns there is no need to do anything to the meter Notes on correctness of measurements For the notes on correctness of measurements applicable to this meter...

Page 6: ... W 3 4 VA 3 x 220 380 V AC max 2 0 W 3 5 VA 3 x 240 415 V AC Current path 0 04 VA 0 004 VA Temperature range Defined operating range 25 C 55 C Limit range for operation storage and transport 40 C 70 C Altitude up to 3 000 m Humidity max 95 non condensing as per IEC 62052 11 EN 50470 1 and IEC 60068 2 30 Protection class II Degree of protection IP 54 Fire properties as per IEC 62052 31 Environmenta...

Page 7: ...est LED for active power 5 Optical call sensor optional 6 Meter cover 7 Sealing screw 8 Optical data interface D0 9 Call up button 10 Transformer plate only for transformer connected meters 11 Reset button 12 Module compartment flap sealable 13 Module compartment 14 Terminal cover 15 Sealing screws ...

Page 8: ... will find more information on the optical data inter face in the user manual Module compartment Located under the sealable module flap A modem or interface module can be installed here Installation and removal can be performed under voltage Reset button Located under the sealable module flap The reset button can be used to reset the maximum registers for example You will find more information on ...

Page 9: ...voltage category utilisation category direct connected meter 8 Accuracy class 9 Operating temperature 10 Space for ownership labelling 11 Information about connection of the meter 12 OBIS codes for the most important registers 13 Conformity and certification marking 14 Safety and application information 15 Voltage current frequency 16 Type designation and type code ...

Page 10: ...below the display and the description of the OBIS code numbers on the name plate are designed as standard and not adapted to the meter version The name plate can contain more details than configured in the version in question Transformer plate Transformer connected meters are equipped with a transformer plate It is located under the sealable module flap ...

Page 11: ...quadrant P Q 4th quadrant P Q 2 The battery status indicator shows the residual capacity of the internal power reserve of the real time clock Full power the real time clock is buffered in this instance Power reserve run down internal battery is empty or not available In this instance the real time clock cannot be buffered 3 The communication display lights up permanently when the data interface op...

Page 12: ...PWR The cursor is active if the defined power threshold in the meter was exceeded 7 The standard cursor field displays the operating states of the meter The arrows indicate the active tariff and maximum registers the tariff activation source CLOCK and additional information T1 T4 Tariff information for energy M1 M4 Tariff information for power RL The cursor flashes as long as a resetting lock is a...

Page 13: ...tential y External devices that are operated using the meter s voltage taps must be fuse protected with a pre fuse of 0 5 A in accordance with the applicable technical regulations DANGER Risk of fatal injury due to arcing and electric shock The inputs and outputs for the additional terminals are not fuse protected in the meter y Fuse protect the inputs with a pre fuse of 0 5 A in accordance with t...

Page 14: ...utomatic circuit breakers for system discon nection secure them to prevent them from being switched on again without being noticed y Before the installation of a meter make sure that the consequences of disconnecting the electrical system will not result in danger to the life or health of persons or cause any economic damage y To avoid any danger or damage take appropriate measures to prevent malf...

Page 15: ... to its insulation 7 Tighten the screw of the screw type terminal while observing the maximum torque as specified in the above table Ensure that the cable insulation is not put inside the terminal 8 Repeat the process until all conductors are connected a Transformer connected meter Transformer connected meter Current and voltage terminals Additional terminals Terminal dimensions W x H or d mm 5 3 ...

Page 16: ... assignment can be found on the name plate of the meter View from the front maximum terminal assignment specifications in mm View from below maximum terminal assignment specifications in mm Button for manipulation detection of terminal cover ...

Page 17: ...njuries will destroy the current transformer and can result in electric arcs on the terminal block y Before disconnecting the current paths short circuit the secondary circuits of the current transformer at its testing terminals DANGER Danger to life due to excess voltages on the terminals of the cur rent paths The voltages on the terminals of the current paths must not be higher than the rated vo...

Page 18: ...l the safety instructions in the documents for the voltage transformers in use y If necessary the secondary side of the voltage transformers must be earthed Connection information Example of a transformer connected meter You will find further connection diagrams as per DIN 43856 in the user manual ...

Page 19: ...5 2 5 Minimum torques Nm 4 Maximum torques Nm 5 Screw type Cross slot combination screw type PZ2 as per ISO 4757 Spring loaded terminal Thread size M10 Stripping length mm 18 0 5 0 Rated connection capacity based on IEC 60999 1 Terminal block The specific terminal assignment can be found on the name plate of the meter View from the front maximum terminal assignment specifications in mm Button for ...

Page 20: ...amage The voltage connections in the meter are not fuse protected and are connected directly to the measuring voltage potential y The connecting paths must be fuse protected as per the applicable technical regulations and in accordance with the current specifica tion on the meter s name plate y Use an overcurrent protection device rated for a maximum of 100 A as per the applicable Technical Connec...

Page 21: ...In addition to the connection diagram for current and voltage the type plate contains information on the individual interfaces such as the maxi mum voltage of the outputs for example The interfaces are marked with numbers which can be found above the matching terminals in the terminal block area Framed terminal numbers indicate the respective earth GND of the interface Interface description on the...

Page 22: ...ectrical data interfaces RS232 RS485 and CL0 are implemented by means of spring loaded terminals The assignment is as follows RS232 Tx Rx RS GND 23 24 27 RS485 A B RS GND 23 24 27 CL0 NC 23 24 Output S0 Opto MOSFET semiconductor relay ES External control input Input Data interface ...

Page 23: ...ntil the terminal opens 5 Insert the line into the open terminal up to its insulation Ensure that the cable insulation is not put inside the terminal 6 Remove the screwdriver to allow the terminal to close 7 Repeat the process until all conductors are connected Securing the terminal cover To prevent any unauthorised access to the connection terminals the terminal cover is attached with 2 sealing s...

Page 24: ... sensor The display lists contain the following y Operation display alternating display y Display test y Call up list Std dAtA display all register contents in the list y Load profile list P 01 display load profile values y Adjustment list SEt edit adjustable variables y Information list InFO dAtA display instantaneous values The display lists can be configured with the help of the COMBI MASTER 2 ...

Page 25: ...ation period lengths generally 30 min after the last time a button is pressed the system automatically returns to the operation display You can also achieve this through longer actuation of the call up button This ensures that you can observe the progress of a complete registration period at minimum on the display Operation display alternating display The operation display is the default display D...

Page 26: ...tton menu through a short actuation of the call up button or the reset button Display test Menu item Display Button 1 Display test mode display flashes t 2 s Go to call up button menu t 2 s Go to reset button menu Call up button menu The first displayed value in the call up button menu is the Std dAtA call up list menu item Each further short actuation of the call up button causes the next menu it...

Page 27: ...display menu t 2 s Return to item 1 Call up list Std dAtA The call up list contains all the data relevant to billing Every time the call up button is pressed further data are displayed You can skip the pre values to call up data quickly To do so use long actuation of the call up button The end of the menu is indicated by the End menu item Call up list Menu item Display Button 1 Entry point of the ...

Page 28: ...s the date of the most recently recorded load profile entry Each further short actuation of the call up button causes the next historically earlier date for which a load profile entry exists to be displayed y You can display the time of the first oldest load profile entry for the selected date through long actuation of the call up button y To access the next value e g status of the load profile en...

Page 29: ...rofile list 2 s t 5 s Enter the load profile list 2 Most recent date YY MM DD t 2 s Next menu item 2 s t 5 s Enter the selected day go to item 4 3 Date of the previous day YY MM TT t 2 s Next previous day repeat if necessary 2 s t 5 s Next menu item 4 Time of first oldest entry for selected day t 2 s Next menu item 5 Status of first entry of selected day t 2 s Next menu item 6 First load profile v...

Page 30: ...Go to opera tion display Reset button menu To press the reset button it is necessary to break the seal of the module flap The seal may only be broken by authorised persons The reset button menu represents an advanced function of the reset button You will find information on the basic function of the reset button in the Reset chapter of the user manual The first displayed value in the reset button ...

Page 31: ...t menu item 2 Display test mode t 2 s Go to call up button menu t 2 s Go to reset button menu 3 Entry point of the adjust ment list t 2 s Next menu item 2 s t 5 s Enter the ad justment list 4 Entry point of the informa tion list t 2 s Next menu item 2 s t 5 s Enter the infor mation list ...

Page 32: ...d reset button Adjustable values with multiple digits are edited by means of the buttons starting from the left first digit Adjusting the time near the end of the day 00 00 00 o clock or a change of season winter time to summer time or summer time to winter time can result in time offsets Adjustment list Menu item Display Button 1 Entry point of the adjust ment list 2 s t 5 s Enter the ad justment...

Page 33: ... Edit next digit 5 Repeat item 3 for further digits 6 All digits flash t 2 s retain old value and return to item 3 t 2 s Save new val ue and return to item 3 7 End of the ad justment list t 2 s Return to item 2 t 5 s Go to opera tion display Information list InFO dAtA The information list contains instantaneous values This makes it possible to check that the meter has been installed correctly ...

Page 34: ...of the menu is indicated by the End menu item Info list Menu item Display Button 1 Entry point of the informa tion list 2 s t 5 s Enter the infor mation list 2 First register installation control regis ter C 86 0 t 2 s Next menu item 3 Next register t 2 s Next menu item 4 Repeat item 3 to display additional registers 5 End of the information list t 2 s Return to item 2 t 5 s Go to opera tion displ...

Page 35: ...up using the information list in the reset button menu The monitored measured values result from the instantaneous values If the meter was installed without errors the register contains the value 00000000 C 86 0 0 0 0 0 0 0 0 0 Manipulation detection Wrong rotating field Phase failure Negative power direction Current interruption Limiting current exceeded Undervoltage Overvoltage ...

Page 36: ...power supply Negative power direction 1 Negative power direction L1 P 2 Negative power direction L2 P 4 Negative power direction L3 P Current interruption 1 Current interruption L1 2 Current interruption L2 4 Current interruption L3 Limiting current exceeded 1 Limiting current exceeded L1 I Imax 2 Limiting current exceeded L2 4 Limiting current exceeded L3 Undervoltage 1 Voltage undershot L1 U 80 ...

Page 37: ...vidual error flags The LZQJ SGM has 5 error flags that are represented by an 8 digit hexadecimal number Error flag Explanation F F 00000004 Error in the data checksum due to absence of voltage F F 00000100 Error in Par checksum F F 00000200 Error in Set checksum F F 00000400 Error in code checksum F F 00008000 Error in adjustment checksum Deleting the error register The command for deleting the er...

Page 38: ... the meter is in operation The pro gram also makes it possible to save the meter configuration in a file The program itself contains plenty of information on use which will help you work with the meter and the software Functional scope Among others the program supports the following functions y Reading out the configuration from a meter and saving it in a file y Loading a configuration from a file...

Page 39: ...face for a communication module The rated voltage of the module supply via the module interface is 17 V DC The supply is equipped with current limiting at 300 mA For detailed information on the communication modules please see the documentation for the VARIOMOD XC ...

Page 40: ...iode MP Measuring period of the maximum MPA Output signal of the current measuring period N Neutral conductor OBIS Object Identification System OVC Overvoltage category P Active power P Positive active power customer obtains from utility company P Negative active power customer supplies to utility company Q Reactive power Q Positive reactive power Q Negative reactive power RAB Output pulses of the...

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Page 43: ...is available on the in ternet site www emh metering com in the Products Solutions area for the meter s product description The specifications for creating the Declaration of Conformity can change at any time so save the Declaration of Conformity when the device is delivered ...

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