janitza UMG 605 Operating Manual
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janitza UMG 605 Operating Manual

janitza UMG 605 Operating Manual

Power quality analyser
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Janitza electronics GmbH
Vor dem Polstück 1
D-35633 Lahnau
Support Tel. 0049 6441 9642-22
Fax 0049 6441 9642-30
e-mail: info@janitza.com
Internet: http://www.janitza.com
Power Quality Analyser
UMG 605
Operating manual and
technical data
Temperature
RS232 RS485
measurement
input
Profibus
Ethernet
4 x current
measurement
2 digital inputs
2 digital outputs
Power supply voltage
A B
4 x voltage
measurement

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  • Page 1 Power Quality Analyser UMG 605 Operating manual and technical data Temperature RS232 RS485 2 digital inputs measurement 2 digital outputs input Power supply voltage Profibus Ethernet 4 x current 4 x voltage Janitza electronics GmbH measurement measurement Vor dem Polstück 1 D-35633 Lahnau Support Tel.

  • Page 2: Table Of Contents

    UMG 605 General Information Operation Inspection on receipt Key functions Scope of supply Concealed key (service) Available accessories Display mode Notes on Use Programming mode Product Description Display password Intended use Homepage password UMG605 features Measurements Operating concept Voltage transformer ratio...
  • Page 3 UMG 605 System information Appendix Overrange Parameter list Serial number Measured value displays Date Declaration of conformity Firmware release Dimensioned drawings Time UMG605 connection example Service and maintenance Quick Reference Instructions Repair and calibration Front film Battery Firmware update Service...

  • Page 4: General Information

    All trademarks and their resulting rights be- long to the respective holders of these rights. Liability disclaimer Janitza electronics GmbH does not accept any responsibility whatsoever for errors or deficiencies within this manual and does not undertake any obligation to keep the content...
  • Page 5 UMG 605 Meaning of the symbols used The following pictograms are used in this ma- nual: Dangerous voltage! Danger or risk of severe injury. Disconnect the system and device from the power supply before starting the work. Important! Please note follow documentation.

  • Page 6: Inspection On Receipt

    UMG 605 Inspection on receipt Fault free and safe use of this device requires Please check the scope of supply for appropriate transport, proper storage, erection completeness before you start installing the and assembly as well as careful operation and device.

  • Page 7: Scope Of Supply

    RS485, external terminating resistor, 120 ohm Refer to delivery note for product number. Design version. Available accessories Product No. Name 21 01 102 Battery, lithium CR2032, 3 V 08 02 427 RS232, Connection cable (UMG 605 – PC), 2m, 5 poles...

  • Page 8: Notes On Use

    UMG 605 Notes on Use Please read these operating instructions and This device may be solely operated and all other publications which have to be used maintained by skilled persons. to work with this product (in particular for installation, operation or maintenance).
  • Page 9 UMG 605 Important! If the device is not operated according to the instruction manual, protection is no longer ensured and the device can cause hazards. Conductors made of individual wires must be fitted with wire end ferrules. Only pluggable screw terminals with...

  • Page 10: Product Description

    UMG 605 Product Description Intended use The UMG605 is intended to be used for the Measurement in medium and high-voltage measurement and calculation of electrical systems takes place with current and voltage variables such as voltage, current, energy, transformers. Special safety requirements work, harmonic components, etc.

  • Page 11: Umg605 Features

    UMG 605 UMG605 features - Measurement in IT, TT and TN systems, - 4 voltage measurement inputs, - 4 current measurement inputs, - Continuous scanning of the voltage and current measurement inputs, - Measurement of power quality according to DIN EN61000-4-30:2009 class S,...

  • Page 12: Operating Concept

    UMG 605 Operating concept You can program the UMG605 and call up measured values in several ways. • Directly at the device using 2 keys and the display. You can change the values in the parameter list (see Appendix) and call up the measured values from the measured value displays.

  • Page 13: Gridvis Programming Software

    UMG 605 GridVis programming software The UMG605 can be programmed and read RS232 ® out using the GridVis programming software included in the scope of supply. This requires a PC to be connected to the UMG605 via a serial interface/ethernet.

  • Page 14: Methods Of Measurement

    UMG 605 Methods of measurement The UMG605 measures continuously and calculates all effective values over a 200 ms interval. The UMG605 measures the real effective va- lue (TRMS) of the voltages and currents ap- plied to the measurement inputs.

  • Page 15: Three-Phase 4-Wire Systems

    UMG 605 Three-phase 4-wire systems The UMG605 can be used in three-phase 4 conductor systems (TN, TT system) (50 Hz, 230/400V 50/60Hz 60 Hz) with earthed PEN conductor. The bodies of the electrical system are earthed. The conductor to neutral conductor voltage may not exceed 300 V AC.

  • Page 16: Three-Phase 3-Wire Systems

    UMG 605 Three-phase 3-wire systems The UMG605 can be used in unearthed three-phase 3 wire systems (IT system). The 66 V conductor to conductor voltage may not 115 V exceed 480V AC (50 Hz, 60 Hz). 120 V The UMG605 is only suitable for environments...
  • Page 17 UMG 605 400V 50/60Hz 230/400V 50/60Hz Impedance Impedance AC/DC AC/DC Earthing the Earthing the system system Voltage measurement Voltage measurement Auxiliary power Auxiliary power UMG605 UMG605 Fig. Block diagram, UMG605 in IT system Fig. Block diagram, UMG605 in IT system with...

  • Page 18: Installation

    UMG 605 Installation Installed position The UMG605 can be installed in control cabinets or in small distribution boards according to DIN 43880. It is mounted on a 35 mm mounting v according to DIN EN 60715. It can be installed in any position.

  • Page 19: Power Supply Voltage

    UMG 605 Power supply voltage Power supply voltage Uh A power supply voltage is required for operation of the UMG605. The type and Fuse amount of power supply voltage required is noted on the rating plate. Disconnecting device Before applying the power supply voltage,...

  • Page 20: Voltage Measurement

    UMG 605 Voltage measurement The UMG605 is designed for the measurement of alternating voltages in 300 V systems in which category III overvoltages can occur. The UMG605 can only determine measured values if a measurement-current voltage greater than 10 Veff is applied to at least one Disconnector voltage measurement input.
  • Page 21 UMG 605 When connecting the voltage measurement, Caution! the following must be observed: Voltages that exceed the permitted nominal network voltages must be • In order to disconnect the voltage and cur- connected using a voltage converter. rent, a suitable circuit breaker is to be pro- vided.
  • Page 22 UMG 605 Main measurement, inputs 1-3 4-conductor connection S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 4w 3m 4w 3m 4w 3m 4w 3m...
  • Page 23 UMG 605 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 4w 2i S1 S2 S1 S2 S1 S2 4w 2i Fig. measurement using 2 current converters in a three-phase 3 conductor network with symmetrical load. S1 S2 S1 S2 S1 S2 S1 S2...
  • Page 24 UMG 605 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2...
  • Page 25 UMG 605 2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 S1 S2 3w 2m 3w 2m 2 S1 S2 1 S2 S1 S2 S1 S2 S1 S2...
  • Page 26 UMG 605 Auxiliary measurement, input V4 3-conductor connection S1 S2 S1 S2 4w 1m S1 S2 S1 S2 4w 1m S1 S2 S1 S2 4w 1m 4w 1m 4w 1m 4w 1m Fig. measurement with one current transform- Fig. measurement with one current transform-...

  • Page 27: Frequency Measurement

    UMG 605 Frequency measurement The UMG605 needs the network frequency to measure and calculate measurement values. The network frequency must be in a range be- tween 15Hz and 440Hz. For automatic ascertainment (wide range) of the frequency, an L1-N voltage larger than 10Veff must be applied to the voltage meas- urement input V1.

  • Page 28: Current Measurement

    UMG 605 Current measurement The UMG605 is designed for the connection of current transformers with secondary currents of ../1A and ../5A. Only alternating currents, not direct currents, can be measured. Each current measurement input can be permanently loaded with 6A or for 1 second with 100 A.
  • Page 29 UMG 605...
  • Page 30 UMG 605 Ammeter If you not only want to measure the current Short-circuit current transformer con- with the UMG605 but with an ammeter also, nections! the ammeter must be connected in series to The secondary connections of the the UMG605.
  • Page 31 UMG 605 Summation current measurement If the current is measured via two current Example transformers, the total transformation ratio of The current is measured via two current the current transformers must be programmed transformers. Both current transformers in the UMG605.

  • Page 32: Direct Measurement

    UMG 605 Direct measurement The direction of the current for each phase can Nominal currents up to 5 A can also be be corrected direct at the UMG or by the pro- measured directly with UMG605. vided software. In this case it must be noted that each current measurement input may be loaded In case of wrong connections (k –...
  • Page 33 UMG 605...

  • Page 34: Interfaces

    UMG 605 Interfaces RS232 Shielding You can use a RS232 connection cable to A twisted-conductor and shielded cable must connect the UMG605 to a PC. be provided for connections via the RS232 The achievable distance between two devices interface. The shielding at both ends of the...
  • Page 35 UMG 605 Com1 Mini Combicon, 5 pin D-sub, 9 pin, socket Fig. Connector pin assignment for the PC connection cable (Part number: 08 02 427). Fig. Example, connecting a UMG605 to a PC via the RS232 interface.

  • Page 36: Rs485

    UMG 605 RS485 Bus structure All devices are connected in a bus structure (line). Up to 32 stations can be connected together in a segment. The cable at the start and end of a segment is terminated with resistors. If there are more than 32 stations, repeaters must be used to connect the individual segments.
  • Page 37 UMG 605 Terminating resistors Shielding The cable at the start and end of a segment A twisted-conductor and shielded cable must is terminated with resistors (120 ohm, 1/4 W). be provided for connections via the RS485 interface. The shielding at both ends of the...

  • Page 38: Rs485 Profibus Dp V0 Slave

    The profibus connection in the UMG605 is a 9 pin DSUB socket. We recommend use of a 9 pin profibus connector for the connection, e.g. as made by Phoenix, type “SUBCON-Plus-ProfiB/AX/SC” with product number 2744380. (Janitza art. no.: 13.120.539) Profibus connection Fig. UMG605 with profibus interface.
  • Page 39 UMG 605 Connecting the bus cables The incoming bus cable is connected to terminals 1A and 1B. The bus cable for the next device in the line is connected to terminals 2A and 2B. If there is not another device in the line the bus cable must be terminated with resistors (switch set to ON).

  • Page 40: Digital Inputs And Outputs

    UMG 605 Digital inputs and outputs Digital outputs The UMG605 has 2 transistor switching outputs. These outputs metallically separated from the analysis electronics via optocouplers. • The digital outputs can switch direct or alternating current load. • The digital outputs can switch loads in- dependant on the polarity of the feeding voltage.
  • Page 41 UMG 605 UMG605 UMG605 Digital outputs Digital outputs Digital Digital Output 1 Output 1 Digital Digital Output 2 Output 2 Fig. Connection of alternating voltage relays to Fig. Connection of direct current relays the digital outputs. to the digital outputs.
  • Page 42 UMG 605 Digital inputs UMG605 The UMG605 has 2 digital inputs to each of Digital inputs 1-2 which you can connect one transducer. Digital An input signal is detected at a digital input if a Input 1 voltage of at least 10 V and maximum 28 V is applied.
  • Page 43 UMG 605 S0 pulse input UMG605 At each UMG605 with inputs for 24 V you can Digital inputs 1-2 also connect S0 pulse generators according to DIN EN 62053-31. You require only one external auxiliary voltage Digital of 20..28 V DC and one external 1.5 kohm Input 1 resistor each.

  • Page 44: Temperature Measurement Input

    UMG 605 Temperature measurement input Temperature sensors with a resistance range of 400 ohm to 4 kohm can be connected to the temperature measurement input. The total burden (sensor + cable) of 4 kohm may not be exceeded. Fig. Example, temperature measurement with a KTY83.
  • Page 45 UMG 605...

  • Page 46: Operation

    UMG 605 Operation The UMG605 has a display, keys 1 and 2 and the Service key to make it easier to install and start up the UMG605 without a PC. Important parameters such current transformers and device address are included in the parameter list (see Appendix) and can be directly programmed at the device.

  • Page 47: Display Mode

    UMG 605 Display mode N L1 After the power supply is resumed the device is in Display mode. In Display mode you can use Keys 1 and 2 to page between the measured value displays. Use Key 1 to select the phase for the measured values.

  • Page 48: Programming Mode

    UMG 605 Programming mode The most important settings required for operation of the UMG605 can be displayed and changed in programming mode. The parameter list in the Appendix contains the addresses for the most important settings. You can make further settings using the GridVis software included in the scope of supply.

  • Page 49: Display Password

    UMG 605 Display password You can program a 4-digit display password to make it difficult to accidentally change the programming data directly at the device. A display password is not set in the factory. Homepage password Content You can protect access to the UMG605's homepage via a password.

  • Page 50: Measurements

    UMG 605 Measurements The UMG605 has four measuring channels for the voltage measurement (V1…V4 against Vref) and four measuring channels for the cur- rent measurement (I1…I4). The Voltage and current to be measured have to be come out of the same grid.
  • Page 51 UMG 605 Auxiliary measurement (channel 4) For the auxiliary measurement is only the 4th channel available. Use the measuring channel 4 only in a single phase system or in three phase systems with symmetrical load. Address Content The settings for the frequency and the relevant voltage are adjusted automatically according the settings of the main measurement.

  • Page 52: Voltage Transformer Ratio

    UMG 605 Voltage transformer ratio The parametrisation of the voltage transformer ratio for the main measurement are under address 002 and 003. The parametrisation of the voltage transformer ratio for the auxiliary measurement are under address 012 and 013. Address...

  • Page 53: Current Transformer Ratio

    UMG 605 Current transformer ratio The parametrisation of the current transformer ratio for the main measurement are under address 000 and 001. The parametrisation of the current transformer ratio for the auxiliary measurement are under address 010 and 011. Address...

  • Page 54: Interfaces

    UMG 605 Interfaces RS485 The UMG605 has 4 serial interfaces: - RS485 The following data must be programmed for - RS232 use of the RS485 interface: - Ethernet - Device address, - Profibus - Baud rate, All interfaces can be used simultaneously.

  • Page 55: Ethernet

    UMG 605 Ethernet Fixed IP address In simple networks without DHCP servers the UMG605 network address must be set directly at the device. BootP BootP allows fully automatic integration of Patch cables Patch cables Switch a UMG605 in an existing network. BootP is an older protocol and does not have the Fig.

  • Page 56: Profibus

    UMG 605 Profibus Device master file GSD Profibus profiles The device master file for the UMG605 is The UMG605 can manage 16 profibus profi- called “0B41.GSD” and is included on the CD les. Each profibus profile contains 128 data which belongs to the scope of supply.

  • Page 57: Recordings

    UMG 605 Recordings 2 recordings are preconfigured in the default • Reactive power fundamental Sum L1-L4 factory setting of the UMG605. Recordings (The mean value, minimum value are adjusted and extended via the software maximum value are also recorded for each GridVis.

  • Page 58: Putting Into Service

    UMG 605 Putting into Service Frequency measurement Applying the power supply voltage For the frequency measurement, the measured The power supply voltage level for the UMG605 is given on the rating plate. Supply voltages voltage must be greater than 10 V in the voltage measuring path L1-N.

  • Page 59: Applying The Measuring-Circuit Voltage

    UMG 605 Applying the measuring-circuit voltage The UMG605 is suitable for the measurement of voltages of up to 300 V AC to earth and 520 V AC conductor to conductor. UMG605 suitable measurement of direct voltages. Voltages above 300 VAC to earth must be connected via voltage transformers.

  • Page 60: Phase Sequence

    UMG 605 Phase sequence Applying the measuring-circuit current Check the direction of the voltage rotating field in the measured value display of the UMG605. The UMG605 is designed for the connection A “right” rotating field usually exists. of ../1A and ../5A current transformers.

  • Page 61: Checking The Energy Measurement

    UMG 605 Checking the energy measurement Short-circuit all current transformer outputs except for one and check the displayed power outputs. The UMG605 may only display one power output in the phase with a non short-circuited current transformer input. If this is not the case, check the connection of the measuring-circuit voltage and the measuring-circuit current.

  • Page 62: System Information

    UMG 605 System information L1 L2 L3 L4 Overrange Overranges are displayed as long as they exist and cannot be acknowledged. An overrange exists if at least one of the four voltage or current measurement inputs lies outside their specified measuring range.

  • Page 63: Serial Number

    UMG 605 Serial number Firmware release RxD TxD Input Output L1 L2 L3 L4 RxD TxD Input Output L1 L2 L3 L4 Fig. Measured value display with serial number. Fig. Measured value display for the firmware release. Date Time L1 L2 L3 L4...

  • Page 64: Service And Maintenance

    UMG 605 Service and maintenance Battery The device is subjected to various safety checks before delivery and marked with a The internal clock is provided with power seal. If a device is opened, the safety checks from the power supply voltage. If the power must be repeated.

  • Page 65: Firmware Update

    UMG 605 Disposal Service The UMG605 can be reused or recycled as Should questions arise, which are not electronic scrap in accordance with the legal described in this manual, please contact the provisions. The permanently installed lithium manufacturer directly. battery must be disposed of separately.

  • Page 66: Trouble Shooting

    UMG 605 Trouble shooting Possible error Cause Remedy No display. External fusing for the power Replace fuse. supply voltage has tripped. Device is defective. Send device to the manufacturer for repair. No current display. Measurement voltage is not Connect measuring-circuit connected.
  • Page 67 UMG 605 Possible error Cause Remedy voltage Displayed Measurement in the wrong phase. Check connection and correct if is too small or too necessary. large. Voltage transformer incorrectly Read program programmed. voltage transformer transformation ratio voltage transformer. Displayed voltage is Overrange.
  • Page 68 UMG 605 Possible error Cause Remedy Active power too The programmed current Read out and program the current small or too large. transformer transformation transformer transformation ratio at the ratio is incorrect. current transformer. The current path is assigned Check connection and correct if to the wrong voltage path.
  • Page 69 UMG 605 Possible error Cause Remedy Despite the meas- Device is defective. Send device to the manufacturer for ures above the device checking with a precise description of does not work. the error.

  • Page 70: Technical Specifications

    UMG 605 Technical specifications General information Net weight : 350g Device dimensions : approx l=107.5 mm, b=90 mm, h=82 mm (according to DIN 43871:1992) Housing flammability class : UL94V-0 Installed position : any Fixing/mounting : 35 mm top hat rail...

  • Page 71: Power Supply Voltage

    UMG 605 Power supply voltage The power supply voltage must be connected to the UMG605 via a UL listed fuse : 6A, type C (approved to UL / IEC) Overvoltage category : 300 V CATIII Option 230V Nominal range : 95V .. 240V (45-65 Hz) or DC 135V .. 340V...

  • Page 72: Protection Class

    UMG 605 Protection class Class II according to IEC 60536 (VDE 0106, Part 1), i.e. a PE terminal is not required! Protection against ingress of solid foreign bodies and water : IP20 according to EN 60529 September 2000, IEC 60529:1989...

  • Page 73: Inputs And Outputs

    UMG 605 Inputs and outputs 2 digital inputs Pulse input (S0) Maximum counting frequency : 20 Hz Switching input Response time (Jasic program) : 200 ms Input signal applied : 18V. 28 V DC (typically 4 mA) Input signal not applied : 0 ..

  • Page 74: Temperature Measurement Input

    UMG 605 Temperature measurement input Update time : approx 200 ms Connectable sensors : PT100, PT1000, KTY83, KTY84 Total burden (sensor + cable) : max 4 kohm Sensor type Temperature range Resistance range Measurement uncertainty KTY83 -55 ° .. +175 °C 500 ohm ..

  • Page 75: Interfaces

    UMG 605 Interfaces RS232 : 5 pin screw-type terminals. Protocol : Modbus RTU/slave Transfer rate 9600 bps, 19.2 kbps, 38.4 kbps, 115.2 kbps RS485 : 2 pin screw-type terminals. Protocol, modbus RTU : Modbus RTU/slave, modbus RTU/master Transfer rate : 9.6 kbps, 19.2 kbps, 38.4 kbps, 57.6 kbps, 115.2 kbps, 921.6 kbps...

  • Page 76: Function Parameters

    UMG 605 Function parameters • Measurement using current converters ../5A • Measurements at 50/60 Hz Function Symbol Accuracy class Measurem. range Display range Total effective power (IEC61557-12) 0 .. 15.3kW 0 W .. 9999 GW Total reactive power , Qv (IEC61557-12) 0 ..
  • Page 77 UMG 605 Function Symbol Accuracy class Measurem. range Display range THD of voltage THDu (IEC61557-12) to 2.5 kHz 0 % .. 999 % THD of voltage THD-Ru (IEC61557-12) to 2.5 kHz 0 % .. 999 % Current harmonics Cl. 1 (IEC61000-4-7) to 2.5 kHz...
  • Page 78 UMG 605 Function Symbol Accuracy class Measurem. range Display range Neutral cond. current calculated (IEC61557-12) 0.001 .. 25.5 A 0 A .. 9999 kA Voltage U L-N (IEC61557-12) 10 .. 600 V 0 V .. 9999 kV Voltage U L-L (IEC61557-12) 18 ..
  • Page 79 UMG 605...

  • Page 80: Measuring Inputs

    UMG 605 Measuring inputs Voltage measurement Three-phase 4-wire systems (L-N/L-L) : max. 277 V/480 V Three-phase 3-wire systems (L-L) : max. 480 V Resolution : 0,01 V Crest-faktor : 2 (referring to 480 Vrms) Measurement category : 300V CAT III...
  • Page 81 UMG 605 Current measurement Nominal current : 5 A Rated current : 6 A Resolution : 1mA Crest-faktor : 2 (referring to 6 Arms) Measurement category : 300 V CAT III Specified impulse withstand voltage : 4 kV Power input : approx 0.2 VA (Ri=5 mohm)

  • Page 82: Appendix

    UMG 605 Appendix Parameter list Setting Default Add Format Name range Units setting 000 float Current transformer, primary, L1..L3 0 .. 1000000 001 float Current transformer, secondary, L1..L3 1 .. 5 002 float Voltage transformer, primary, L1..L3 0 .. 1000000 003 float Voltage transformer, secondary, L1..L3...
  • Page 83 UMG 605 Setting Default Add Format Name range Units setting 100 int Automatically get TFTP configuration file 0 .. 9999 0 = switched off x = file number 101 int TFTP error handling 0 .. 1 0 = In the event of an error the Configuration menu appears in the UMG605.
  • Page 84 UMG 605 Setting Default Add Format Name range Units setting 200 int Device address, modbus/profibus 1 .. 255 201 int Baud rate, RS232 0 .. 4 0 = 9600 bit/s 1 = 19200 bit/s 2 = 38400 bit/s 3 = 57600 bit/s...
  • Page 85 UMG 605 Setting Default Add Format Name range Units setting 205 int DHCP mode 0, 1, 2, 3 0 = fixed IP 1 = BootP 2 = DHCP-Client 3 = Zeroconf 300 int IP address, xxx --- --- --- 0 .. 255...
  • Page 86 UMG 605 Setting Default Add Format Name range Units setting 400 short 1 .. 31 401 short Month 1 .. 12 402 short Year 1 .. 9999 xxxx 403 short Hour 0 .. 23 404 short Minute 0 .. 59...

  • Page 87: Measured Value Displays

    UMG 605 Measured value displays You can have the following measured values shown on the display, with the default factory setting, using keys 1 and 2. The measured value names used are abbreviated and have the following me- aning: Active power demand...

  • Page 88: Declaration Of Conformity

    UMG 605 Declaration of conformity The product fulfils the following EC Directives: 2004/108/EG Electromagnetic compatibility of electrical equipment. 2006/95/EG Electrical equipment for use within certain voltage limits. Considered standards: Noise immunity IEC/EN 61326-1:2013 Class A: Industrial environment IEC/EN 61000-4-2:2009 Electrostatic discharge...
  • Page 89 UMG 605...

  • Page 90: Dimensioned Drawings

    UMG 605 Dimensioned drawings Front view Side view...

  • Page 91: Umg605 Connection Example

    UMG 605 UMG605 connection example Strommessung Spannungsmessung Current measurement Voltage measurement (UL listed)

  • Page 92: Quick Reference Instructions

    UMG 605 Quick Reference Instructions Adjusting the primary current You have three current transformers of the same type with a current transformer ratio of 200 A/5 A. You would like to program the primary current with 200 A. To do this you must enter the value 200 for the primary current in the address 000.

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