Janitza UMG 103-CBM Power Analyser Instruction Manual

Janitza UMG 103-CBM Power Analyser

General

Disclaimer
The observance of the information products for the devices is a prerequisite for safe operation and to achieve the stipulated performance characteristics and product characteristics. Janitza electronics GmbH accepts no liability for injuries to personnel, property damage or financial losses arising due to a failure to comply with the information products. Ensure that your information products are accessible and legible. Further information can be found on our website
www.janitza.com at Support > Downloads.

Copyright notice
© 2016 – Janitza electronics GmbH – Lahnau. All rights reserved. Duplication, editing, distribution and any form of exploitation, also as excerpts, is prohibited.

Disposal
Please observe national regulations! If disposing of individual parts, please dispose of them in accordance with their nature and existing country-specific regulations, for example as:

• electrical scrap
• plastics
• metals
• Or, task a certified disposal business with the scrapping.

Relevant laws, applied standards and directives
The laws, standards and directives for the device applied by Janitza electronic GmbH can be found in the declaration of conformity on our website.

Brief description of device

The device is a universal measurement device for low voltage distribution systems, which

• measures and calculates electrical variables such  as voltage, current, power, energy, harmonics, etc. in building installations, on distribution units, circuit breakers and busbar trunking systems.
• transmits measurement results via interface.

Assembly

The device will be installed in switch cabinets or in small installation distributors per DIN 43880 on a 35 mm mounting rail per DIN EN 60715.

• The device fulfils the application conditions of DIN IEC 60721-3-3 and is intended for permanent installation in locations that are protected from the weather.
• It can be installed in any mounting position.
• Forced ventilation is not required

Connecting the supply voltage

The device derives its supply voltage from the measurement voltage L1-N, L2-N and L3-N. In doing so, at least one phase lies within the nominal voltage range. The device requires a voltage of at least 100 Veff in at least one phase (L-N) for operation.

Danger of injury due to electrical voltage!
Serious bodily injury or death can result from:

• Contact with bare or stripped live wires.
• Device inputs that are dangerous to touch. Render the system free of voltage before starting work! Check the system is free of electrical energy!

CAUTION!

Damage to property due to disregard of the connection conditions or impermissible overvoltage! Your device can be damaged or destroyed by a failure to comply with the connection conditions or by exceeding the permissible voltage range.
Before connecting the device to the supply voltage, please check:

• Voltage and frequency correspond to the details on the ratings plate! Limit values stipulated in the user manual have been complied with!
• In building installations, the supply voltage must be protected with a UL/IEC approved circuit breaker / a fuse!
• The isolation device
  • must be installed near the device and in a location that is easily accessible for the user.
  • must be labelled to identify the respective device.
• Provide a fuse for the neutral conductor if the neutral conductor terminal of the source is not grounded.

Mains systems

suitable main systems and macx. rated voltages (DIN EN 61010 – 1/A1)

The device can be used in

• TN and TT networks
• in residential and industrial applications.

Voltage measurement

The device derives its supply voltage from the measured voltage.

Connection variant “Direct voltage measurement in the three-phase, four- conductor system”.

• The device measures voltages L-N up to 277 V and L-L up to 480 V.
• The measurement and surge voltages meet overvoltage category 300 V CATIII.

NOTE!

• A circuit breaker can be used as an alternative to a fuse and isolating device.
• If the range is exceeded, the red LED flashes (see step „connections and controls“).

Connection variants for voltage measurement

NOTE! Voltage transformer ratios can be configured via the software.
NOTE! Because the device derives the supply voltage from the measured voltage and burdens the voltage transformer with a non-linear current, the device is only partially suitable for use in medium and high voltage networks.

Current measurement

Connection “Current measurement via current transformers”.

Warning : Danger of injury due to high currents and high electrical voltages! Current transformers operating with an open secondary circuit (high voltage peaks) can result in serious or even fatal injuries. Avoid open operation of the current transformer short-circuit unloaded.

NOTE!

• Further information on current transformers can be found in the user manual.
• Current transformer ratios can be configured via the software.

Connection variants for current measurement

Typical connection variants

The following schematic shows a typical connection variant for the device with:

• Supply voltage and voltage measurement.
• Current measurement
• RS485 interface with Modbus RTU protocol.

Establish connection to PC

The 3 most common connections for communication between PC and device are described in the following:

Example : PC connection via RS485 interface and UMG 604 as gateway

The PC connection of the device via the RS485 serial interface with, for example, an UMG 604 as gateway (see step “Established connection to PC”) is a method

• for configuring the device(s)
• and reading out data.

RS485 bus structure

• In an RS485 bus structure (line), you connect all devices in accordance with the Master-Slave principle.
• One segment of an RS485 bus structure can include up to 32 subscribers/devices.
• Terminate the cable at the start and end of a segment with termination resistors (120 Ω, 0.25 W). The device has no termination resistor.
• With more than 32 subscribers, repeaters must be used to connect segments.

NOTE!
The coding switches can be used in the RS485 bus structure to allocate the Slave devices (UMG 103-CBM)

• different device addresses.
• different device addresses to the Master device (UMG 604). The UMG 103-CBM detects the transmission speed (Baud rate) automatically!

Connections and control elements

LEDs

• The green LED illuminates. Measurement and supply voltages lie within the operating voltage range. The device is operational. The LED flashes for 0.5 sec. every 5 secs.
• The green LED flashes. Data transfer (RS485) is active.
• The LEDs flash at the same time. The data transfer (RS485) is faulty.
• The red LED illuminates. Fault in the device! Have the device checked by the manufacturer!
• The red LED flashes. At least one current measurement input or voltage measurement input exceeds the measurement range.
• The LEDs flash alternately. Firmware checksum fault! Operation is interrupted! Carry out a firmware update!

Technical data

General information

• Net weight 200 g (0.44 lb)
• Device dimensions
  • h = 98 mm (3.86 in),
  • w = 71.5 mm (2.82 in),
  • d = 46 mm (1.18 in)

Ambient conditions during operation

The device

• weatherproof and use stationary!
• fulfills the conditions in accordance with DIN IEC 60721-3-3
• has protection class II according to IEC 60536 (VDE 0106, part 1) and does not require a protective earth connection.
• Operating temperature range -25 °C .. +60 °C (-13 °F..to 140 °F)
• Relative humidity 5 to 95 % (at +25 °C / 77 °F)) without condensation
• Operating altitude 0 .. 2000 m (1.24 mi) above sea level
• Degree of pollution 2
• Housing flammability class UL94V-0
• Installed position any
• Fixing/mounting 35 mm top hat rail (according to IEC/EN 60999-1, DIN EN 50022)
• Stress by impact 2 joules, IK07 according to IEC / EN61010-1: 2010
• Ventilation no external ventilation required.
• Protection against ingress of solid foreign bodies and water IP20 according to EN60529 September 2000, IEC60529:1989

Measurement data recording

• Memory (Flash) 4 MB
• Battery (soldered)  BR 1632, 3V
• Typical life expectancy 8 – 10 years

Transport and storage
The following information applies to devices which are transported or stored in the original packaging

• Free fall 1 m (39.37 in)
• Temperature -20 °C to +70 °C (-4 °F to 158 °F)

Procedure in the event of faults

Replace fuse.
Device is defective.| Send device to the manufacturer for repair.

Measured current is too large or too small. *****

| Current measurement in the wrong phase.| Check connection and correct if necessary.
Current transformer factor programmed incorrectly.| Read out current transformer ratio and program.
The peak current value at the measurement input has been exceeded by harmonic components.| Install current transformers with a larger current transformer ratio.
Underrange.| Install current transformers with a smaller current transformer ratio.
Measured voltage is too large or too small. *****| Voltage measurement in the wrong phase.| Check connection and correct if necessary.
Voltage transformer incorrectly programmed.| Read out voltage transformer ratio and program.

Measured voltage is too small. *****

| Underrange.| Install voltage transformers.
The peak voltage value at the measurement input has been exceeded by harmonic components.| Attention. It must be ensured that the measuring inputs are not overloaded.

Active power is too large or too small. *****

| The programmed current transformer transformation ratio is incorrect.| Read out current transformer ratio and program with the software GridVis.
The current path is assigned to the wrong voltage path.| Check connection and correct if necessary.
The programmed voltage transformer transformation ratio is incorrect.| Read out voltage transformer ratio and program.
Active power imported supply / supply is reversed.| At least one current transformer connection is mixed up/reversed.|

Check connection and correct, if necessary.

A current path is assigned to the wrong voltage path.
No connection with the device.| RS485: Device address is incorrect or wrong protocol.| Adjust the device address / select protocol.
Despite the measures above the device does not work.| Device is defective.| Send device and error description to verify the manufacturer.
*** … m CAUTION!| Material damage from overloaded measurement inputs!**

Too high current and voltage values overload the measurement inputs. Observe the limits stated on the nameplate and in the user manual!

Janitza electronics GmbH
Vor dem Polstück 6
35633 Lahnau, Deutschland
Support Tel. +49 6441 9642-22
info@janitza.de
www.janitza.de

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