LEM EM4TII+, Manual

Page 1: ...05November2020 V1 0 Page 1 33 EM4TII Manual ...

Page 2: ...unication cycle 18 4 2 4 Access authorizations 19 4 2 5 OBIS codes 19 4 2 6 Structure of load profile compilation 22 4 2 7 Recognition of the traction power system 25 4 2 8 Error register F F 26 4 2 9 Examples of read outs from the EM4TII 27 4 3 Data input for GPS receiver connection 29 5 Maintenance 30 6 Measurement 31 6 1 Measuring principle 31 6 2 Formula generation of measured values 31 7 Tech...

Page 3: ...anation of markings NOTE The device is designed for a maximum secondary voltage converter voltage of 300 V CAUTION Do not under any circumstances open the device Opening the device can cause electric shocks This device does not contain any parts which can be maintained by the user Have all maintenance work carried out by servicing specialists only Protective earth CE certification Warning of a haz...

Page 4: ...ent of energy values is achieved using the digitally sampled converter signals and thus makes for the highest degree of temperature and long term stability The EM4TII is also optionally available for DC measurement in a design with 1 voltage input and up to 3 current inputs which records the energy consumption on vehicles with more than one current consumption points The EM4TII is suitable for use...

Page 5: ...2V DC voltage from the EM4TII The conditions of use with regard to EMC temperature vibrations etc meet the special requirements for locomotives including the EN 50155 EN 50121 3 2 EN 50124 1 and EN 61373 Concerning shock and vibrations the meter has been tested in respect to category 1 class B severity defined in EN 61373 The compact and fireproof housing provides protection from the penetration o...

Page 6: ...ations on operation of the meter 6 Connection plan and terminal assignment 7 Year date code day of the year of manufacture 8 Type designation and type code 9 Protection type 10 Adhere to the operating manual Scope of delivery 1x EM4TII base device Operating manual Additional locking bolts for cable gland 2 x Ø 6 4 x 25 mm and 2 x Ø 9 3 x 20 mm 1 7 2 3 4 5 6 8 9 10 ...

Page 7: ...e unit due to excessive torque Tighten the sealing screws with a maximum torque of 0 5 Nm Once the connections are correctly done and the cover applied the two lower screws of this transparent cover can be sealed so that it is not possible any more to easily open the meter An existing EM4T installation can be adjusted to an EM4TII model using an installation kit which is available as an accessory ...

Page 8: ...re insert the back up fuses without notice If you use selective circuit breakers for disconnection from the mains secure them against unintentional reconnection When installing and connecting the meter only use the screw terminals provided for this purpose ATTENTION Damage to the connection terminals due to excessive torque The appropriate torque depends on the type of the wire and the maximum cur...

Page 9: ...the voltage path with a back up fuse of 6 A The supply lines to the device which can total up to nine depending on the energy meter design must be laid with cable glands and connected as per figure 3 2 Note When using the EM4TII with the communication device PEMG connections for power supply communication and GPS are combined in one cable Figure 3 2 Terminal block ...

Page 10: ...s indicated in the display by an arrow over RS If an attempt to communicate is made whilst another communication process is in process the current communication process breaks down Cable glands properties Measuring signal 3 x M16 x 1 5 Ø 6 5 9 5 mm 1 x M20 x 1 5 Ø 9 5 13 5 mm Supply and communication 4 x M16 x 1 5 Ø 4 0 6 5 mm 13 GPS in RS232 TxD 16 RS232 n c RS485 n c RS422 A 14 GPS in RS232 RxD ...

Page 11: ...ment of current on channel 2 only possible with AC or ACDC version 62 60 Hz measurement of current on channel 2 only possible with AC or ACDC version D4 DC measurement of current on channel 4 only possible with ACDC version D2 DC measurement of current on channel 2 only possible with DC DCDC or DCDCDC version D 3 DC measurement of current on channel 3 only possible with DCDC or DCDCDC version D 4 ...

Page 12: ...elegram received clock engaged RS OFF No communication on the RS232 interface ON Communication on the RS232 interface CLK OFF Power reserve for the device clock not depleted ON Power reserve for the device clock depleted F F OFF There is no fatal device fault ON There is a fatal device fault The individual pieces of energy and operation information are displayed cyclically approximately 10 seconds...

Page 13: ...mber Firmware identification Time Date Manufacture number Locomotive number Train number Consumption point ID if string is longer than 16 characters it is displayed in 2 parts for 5 sec each Display test Appears for 1 s Table 4 2 Rolling list 1 8 0 k Wh 0 0 0 0 0 0 0 0 0 2 8 0 k Wh 0 0 0 0 0 0 0 0 0 3 8 0 k v a r h 0 0 0 0 0 0 0 0 0 4 8 0 k v a r h 0 0 0 0 0 0 0 0 0 F F 0 0 0 0 0 0 0 0 0 0 1 0 0 0...

Page 14: ...ocument if any 4 2 1 Protocol diagram Here is a representation of a possible communication between the train computer or communication unit and the EM4TII to select the load profile Command message e g Request for load profile data from 31 1 2013 08 00 to 1 2 2013 08 00 SOH R5 STX P 01 01301310800 01302010800 ETX BCC Request message CR LF Identification message EMH5 D4EM4TWII001 CR LF Acknowledgem...

Page 15: ...even Message explanation generally Command character 1 5 Please find the related explanation after the message descriptions Request message Device address CR LF 1 9 20 2 3 Identification message X X X Z Ident CR LF 1 11 12 13 3 Acknowledgement option select message ACK 0 Z Y CR LF 4 12 10 3 always 0 Data message except in programming mode STX Data CR LF ETX BCC 5 14 2 3 6 8 Data message in program...

Page 16: ...ds the message The calculated block check character follows immediately after the ETX character 9 Request to send command 10 0 Read data 1 Programming mode 11 Manufacturer identification EMH 12 Baud rate identification to change the baud rate The request message the identification message and the acknowledge option select message are sent with the opening baud rate 9600 bits by default The baud ra...

Page 17: ...at coded OBIS code c for the read command R 5 reads format coded OBIS code 6 reads format coded OBIS code with partial blocks 18 Data set Gives OBIS code and data of the message 19 Error message It consists of max 32 characters except for and 20 Serial number Optional field given as Manufacturer specific maximum 8 characters not used in standard version Note The serial number use detection will re...

Page 18: ...amming mode Read with obis OBIS code number of the parameters profiles to read p1 time stamp beginning p2 time stamp end e1 4 OBIS codes of the energy registers to be included in the load profiles no information select all e5 password if necessary Partial block reading with edis OBIS code of the profile to read p1 time stamp beginning p2 time stamp end p3 number of records per block e1 4 OBIS code...

Page 19: ...vice level W5 password according to IEC 62056 21 This enables him to write certain parameters refer to Table 4 4 Obis codes Access authorisations Read Data and parameters Write Parameters Password level All except PWD Not allowed Service level Adjustable parameters PWD Definition of passwords Table 4 3 Access authorisations 4 2 5 OBIS codes All data and parameters can be read out with any of both ...

Page 20: ... channels Note 5 1 3 7 0 255 actual reactive power Q AC No Yes Floating point kvar 12 CH 1 U CH 2 I 34 CH 3 U CH 4 I 1 32 7 0 255 actual voltage of ch No Yes Floating point V CH 1 or 3 1 31 7 0 255 actual current of ch No Yes Floating point A CH 2 3 or 4 1 14 7 0 255 actual frequency No Yes Floating point Hz CH 1 or 3 0 223 113 108 101 0 LED P Q control W5 password Yes 1 bit 0 P 1 Q 0 3 0 LED puls...

Page 21: ... the old and the new device time is less than 2 s the clock is only synchronised The capture period is not completed in this case Please note that for the standard version of the EM4TII the device clock is synchronised automatically based on the time information included in the GPS data telegrams Note 3 Consumption Point ID This dedicated register for the consumption point ID is an ASCII text stri...

Page 22: ...1015061841 5 9 C 1 9 C 5 1 C 5 3 0 9 17 0 9 18 1 29 0 kWh 2 29 0 kWh 3 29 0 kvarh 4 29 0 kvarh P 01 OBIS Code for load profile 121015061841 timestamp of load profile entry format YYMMDDhhmmss status word in hexadecimal coding see below 5 recording interval in undisturbed case 9 number of variables stored in the load profile Then the OBIS codes of the stored values follow possibly with their physic...

Page 23: ... 1 b24 01000000 DC voltage above Umin2 X 1 b23 b18 always 0 reserved for future use b17 00020000 Change of the supply system Traction Type C 5 3 X b16 00010000 Change of the Consumption Point ID C 1 9 X b15 00008000 Status word has been recorded before the last clock synchronization X X b14 00004000 Load profile memory was completely deleted X X b13 00002000 Logbook was completely deleted X b12 b9...

Page 24: ...parameter only or conflicting detections are flagged as undefined system Traction type detection with bit code according to previous version EM4TII is available on special request register name C 5 2 Traction type detection is based on measurement on channel 1 and in case of ACDC configuration on channel 1 and 3 C 5 3 value Meaning 00 Undefined no System recognized 01 AC System 2 25kV 50Hz recogni...

Page 25: ...this context the applied traction system is recognized basically with a bounce time of 10s This applies both in recognizing the power system after idle state i e after the operation without recognized traction power system and after a change in the system for multi system vehicles After such a system change the previously recognized system is assumed immediately to be no longer active after recogn...

Page 26: ...the load profile and the logbook Bit hexadecimal encoding Meaning b31 always 0 reserved for future use b14 b13 00002000 Failure to initialize the register structure b12 00001000 Failure to initialize the display output lists b11 00000800 Failure to initialize the ROM memory b10 00000400 Error in the memory area of the OBIS code b9 00000200 Error in the configuration area b8 00000100 Error in calib...

Page 27: ... 255 10600000 CR LF 1 0 0 9 1 255 140253 CR LF 1 0 0 9 2 255 121221 CR LF 0 0 C 1 0 255 03878504 CR LF 0 0 C 72 1 255 CR LF 0 0 C 72 2 255 CR LF 1 0 0 8 4 255 5 min CR LF 1 0 0 3 0 255 6 00 Imp kWh CR LF 1 0 0 2 1 1 121120 CR LF 1 0 0 2 1 50 121120 CR LF 0 0 C 90 2 255 9F139CC2 CR LF 1 0 C 1 9 255 Point ID CR LF CR LF ETX SOH B0 ETX q 2 Reading of date and time with commands 0 9 2 and 0 9 1 for ex...

Page 28: ... 130103112500 00000000 5 9 C 1 9 C 5 1 C 5 3 0 9 17 0 9 18 1 29 0 kWh 2 29 0 kWh 3 29 0 kvarh 4 29 0 kvarh CR LF 0004916097866601 7F7F7F 40 53 99050 009 99670 00028 1 00000 0 00007 5 00000 0 CR LF P 01 130103113000 00000000 5 9 C 1 9 C 5 1 C 5 3 0 9 17 0 9 18 1 29 0 kWh 2 29 0 kWh 3 29 0 kvarh 4 29 0 kvarh CR LF 0004916097866601 7F7F7F 40 53 96860 010 01483 00080 4 00000 0 00021 5 00000 0 CR LF P ...

Page 29: ...used and can be left unconnected On this interface an RMC Recommended Minimum Sentence C data set according to NMEA 0183 sent with 4800 Baud is expected by the EM4TII every second or 2 seconds max The location information contained in these GPS data sets are used in the formation of the load profile The input format of coordinates according to NMEA0183 is still accepted with the old format DDMM XX...

Page 30: ... or careless use or treatment The battery Li SOCl2 technology 3 6V non rechargeable must be replaced when the cursor CLK appears in the display The user must not perform this replacement A replacement of the battery is recommended during every re verification process or after 10 years operation The data retention time of the flash memory non volatile is at least 10 years Please note that the re ve...

Page 31: ...ts are backed up in Flash memories The supply voltage can be selected between 24 and 110V as per EN 50155 Optionally a communication unit modem can be supplied with voltage of 12 V via the EM4TII 6 2 Formula generation of measured values Measured values are generated at one second intervals from 4800 sample values Effective voltage value 4800 4800 1 2 1 2 1 n n N n n s eff u N u U Effective curren...

Page 32: ...according to EN 50463 3 Memory depth at least 300 days for 5 minute period length 60 days for 1 minute period length Clock accuracy 20 ppm Interfaces 1 x RS interface bidirectional RS232 RS422 or RS485 with 2 connections in parallel screw terminals and pin header e g for modem connection data protocol according to EN 50463 3 and IEC 62056 21 1 x RS232 unidirectional for registration of GPS data te...

Page 33: ...rt 3 2 Rolling stock Apparatus EN 61373 2010 Railway applications Rolling stock equipment Shock and vibration tests EN 50124 1 2017 Railway applications Insulation coordination Part 1 Basic requirements Clearances and creepage distances for all electrical and electronic equipment IEC 62056 21 2002 Electricity metering Data exchange for meter reading tariff and load control Part 21 Direct local dat...