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13

UMG 103

UMG

604

UMG

103

UMG

103

RS485

Switch

PC

Ethernet

Ethernet

PC

RS232

RS485

UMG

103

UMG103

230/400V 50/60Hz

PE

L2
L3
N

L1

4M

4M

4M

4M

DC

L1

L3

L2

N

AC

Fig. Connection of a UMG103 to a PC 
via an interface converter. 

Interface 

converter

Fig. block diagram, UMG103 in TN 
system.

Power supply 

voltage

Voltage 

measurement

Block diagram of measurement and 
power supply voltage

Fig. Connection of several UMG103 to 
a PC via a UMG604 (with the ethernet 
option).

Earthing 

the 

system

Summary of Contents for UMG 103

Page 1: ...UMG 103 Installation and Putting into Service Product No 33 03 071 Janitza electronics GmbH Vor dem Polst ck 1 D 35633 Lahnau Support tel 0049 6441 9642 22 Fax 0049 6441 9642 30 E mail info janitza c...

Page 2: ...ftware 12 Installation 14 Installed position 14 Power supply voltage 15 Voltage measurement 16 Current measurement 18 Ammeter 19 Direct measurement 19 RS485 interface 22 What to do in case of errors 2...

Page 3: ...33 Declaration of conformity 33 Dimensioned drawings 34 UMG103 connection example 35 Measuring circuit and power supply voltage 35 Current measurement 35 Quick Reference Instructions 36 Device address...

Page 4: ...nics GmbH Vor dem Polst ck 1 D 35633 Lahnau Germany Protected trademarks All trademarks and their resulting rights belong to the respective holders of these rights Liability disclaimer Janitza electro...

Page 5: ...ge Danger or risk of severe injury Disconnect the system and device from the power supply before starting the work PE protective earth terminal Important Please note and follow the documentation This...

Page 6: ...hanical condition Please also note and follow the installation instructions enclosed with the device It can be assumed that safe operation is no longer possible if the device e g has visible damage no...

Page 7: ...ccessories Number Product No Name 1 52 18 xxx1 UMG103 XX2 1 33 03 071 Installation and start up instructions 1 51 00 116 CD with the following content GridVis programming software Functional descripti...

Page 8: ...ectrical or other operating limits can cause personal injuries and or damage to the product Any such unauthorised change is misuse and or negligence under the prod uct s warranty and therefore exclude...

Page 9: ...ensured and the device can cause hazards Conductors with soldered in dividual wires are not suitable for connection to screw type terminals Only pluggable screw terminals with the same number of poles...

Page 10: ...of up to 240 V and short term overvoltages up to 300 Vrms The current measurement inputs of the UMG103 are connected via external 1A or 5A current transformers The UMG103 is only conditionally suitab...

Page 11: ...urrent measurement inputs Energy measurement measurement uncertainty class 0 5 for 5A current transformers Energy measurement measurement uncertainty class 1 for 1A current transformers Fourier analys...

Page 12: ...d out using the GridVis programming software included in the scope of supply To this end the UMG103 must be connected to a PC via the RS485 interface GridVis features Programming the UMG103 Storing da...

Page 13: ...4M 4M DC L1 L3 L2 N AC Fig Connection of a UMG103 to a PC via an interface converter Interface converter Fig block diagram UMG103 in TN system Power supply voltage Voltage measurement Block diagram of...

Page 14: ...an be installed in control cabinets or in small distribution boards according to DIN 43880 It is mounted on a 35 mm mounting rail according to DIN EN 60715 It can be installed in any position Fig UMG1...

Page 15: ...st be routed via a disconnector and protected with a fuse Important A disconnector or circuit breaker must be provided for the measuring circuit and power supply voltage in the building installation T...

Page 16: ...g circuit voltage The instrument leads required for the voltage measurement must be suitable for voltages up to 300 VAC to earth and 520 VAC conductor to conductor Instrument leads must be fused by an...

Page 17: ...rement of direct voltages Important Voltages above 240 VAC to earth must be connected via voltage transformers Fig 17 2 Connection example for voltage measurement via voltage transformer Fig 17 1 Conn...

Page 18: ...gerous contact voltages and therefore must be short circuited The current transformer ratio can be pro grammed via RS485 using the software GridVis only The current transformer ratio is set to 5 5A in...

Page 19: ...t measurement Nominal currents up to 5 A can also be measured directly with the UMG103 In this case it must be noted that each current measurement input may be loaded continuously with 6 A or for 1 se...

Page 20: ...mation measurement is performed with a 5 5 5A summation current transformer Primary current 1000A 1000A 2000A Secondary current 5A The UMG103 must then be set as follows Address 000 2000 primary curre...

Page 21: ...current transformer s secondary leads it is sufficient to place this in the test position provided the short circuiters have been tested first Open current transformer High hazardous live voltage peak...

Page 22: ...nterface and operates with the modbus RTU protocol The device address 1 and baudrate automatic detection is set in the presettings Modbus address list The measured values available in the UMG103 are g...

Page 23: ...les Unitronic BUS L2 FIP 1x2x0 64 Lapp cables Cable length 1200 m for a baud rate of 38 4 k Correct Incorrect Terminal strip in the control cabinet Device with RS485 interface Without terminating resi...

Page 24: ...transformer incorrectly programmed Overrange The peak voltage value at the measurement input has been exceeded by harmonic components Remedy Replace fuse Send device to the manufacturer for repair Rea...

Page 25: ...rmer connection is mixed up reversed A current path is assigned to the wrong voltage path RS485 Device address is incorrect Wrong protocol Device is defective Remedy Read out current transformer ratio...

Page 26: ...ids and products containing acid for cleaning Disposal The UMG103 can be reused or recycled as electronic scrap in accordance with the legal provisions Firmware update If a firmware update has to be p...

Page 27: ...27 UMG 103...

Page 28: ...ight 150g Device dimensions approx l 71 5 mm b 98 mm h 46mm Housing flammability class UL94V 0 Installed position any Fixing mounting 35 mm top hat rail according to IEC EN 60999 1 DIN EN 50022 Operat...

Page 29: ...29 UMG 103 RS485 interface Protocol modbus RTU Modbus RTU slave Transfer rate 9 6 kbps 19 2 kbps 38 4 kbps 57 6 kbps 115 2 kbps automatic detection...

Page 30: ...ed outside the range from 18 28 C an additional measurement error equal to 0 01 of the measured value must be taken into account per C difference Measurement uncertainty The measurement uncertainty of...

Page 31: ...tungsfaktor 2 0 Frequency 0 1 Real energy 0 5 Reactive energy 2 0 Apparent energy 0 5 THD voltage 3 0 THD current 3 0 Real energy Current transformer 5A Class 0 5S DIN EN62053 22 2003 Class B DIN EN50...

Page 32: ...4 Leitersysteme L N L L max 240V 415V Power input max 4VA Overvoltage category 300V CATIII Resolution 0 01V Crest Faktor 2 relating to240Vrms Scanning frequency 5 4kHz Frequency of the fundamental 45...

Page 33: ...sidential area DIN EN 61326 1 2006 Class A IEC 61326 2 1 2005 Interference immunity industrial area DIN EN 61326 1 2006 Table 2 IEC 61326 2 1 2005 Housing Electrostatic discharge IEC 61000 4 2 4 kV 8...

Page 34: ...34 UMG 103 B A Dimensioned drawings Front view Side view...

Page 35: ...35 UMG 103 UMG103 connection example Measuring circuit and power supply voltage Current measurement...

Page 36: ...An overrange exists i e measuring range is exceeded at at least one current or voltage measuring input Data transfer on the RS485 is active For service purposes only If the device is switched on with...

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