Janitza UMG 96RM-E User guide

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Item no. 33.03.146

Power Analyser

UMG 96 RM-E

Residual current monitoring (RCM)

Operating instructions and technical data

Doc. no. 1.040.058.9 from ﬁrmware release 2.07

www.janitza.com

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 Analyser

UMG 96RM-E

Content

General 4 Inspection on receipt 6

Scope of delivery – UMG 96RM-E (RCM) 7 Available accessories 7

Product description 8

Proper use 8 Performance characteristics – UMG 96RM-E 10 Measuring process 11 Operating concept 11 GridVis network analysis software 11 Connection variants 12

Mounting 13 Installation 15

Power supply 15 Measuring voltage 16 Current measurement via I1 to I4 22 Residual current measurement (RCM) via I5, I6 31 Temperature measurement input 33 RS485 interface 34 Ethernet interface 37 Digital in-/outputs 38 LED status bar 42

Operation 44

Display mode 44 Programming mode 44 Parameters and measured values 46

Conﬁguration 48

Connecting the supply voltage 48 Current and voltage transformers 48 Programming the current transformer for I1 to I3 50 Programming the voltage transformer 51 Programming parameters 52 TCP/IP conﬁguration 53 RS485 device address (Addr. 000) 56 RS485 baud rate (Addr. 001) 56 MODBUS gateway (Addr. 002) 57 User password (Addr. 050) 57

Parameter 58

Mean value 58 Averaging method 58 Min. and max. values 59 Energy meter 59 Mains frequency (Addr. 034) 60 Harmonics 61 Measured value rotation 62 Measured value indocations 62 Reset energy meter (Addr. 507) 64 Phase sequence 64 LCD contrast (Addr. 035) 65 Background lighting (Addr. 036) 65 Time recording 65

UMG 96RM-E

Operating hours meter 66 Serial number (Addr. 754) 66 Recordings 67

Putting into service 68

Connecting the supply voltage 68 Applying the measuring-circuit voltage 68 Applying the measuring-circuit voltage 68 Applying the residual current 69 Phase sequence 69 Check phase assignment 69 Checking the energy measurement 69 Checking the measurement 70 Checking the individual outputs 70 Checking the total power outputs 70

RS485 interface 71 Digital outputs 73

Impulse output 75

Service and maintenance 80

Service 80 Device calibration 80 Calibration intervals 80 Firmware update 81 Battery 81 Battery monitoring function 82 Replacing the battery 83

Error/warning messages 84 Technical data 90

Function parameters 98 Table 1 – Parameter list 100 Table 2 - Modbus address list 104 Dimension diagrams 108

Measured value displays overview 110 Declaration of conformity 116 Connection example 1 117 Connection example 2 118 Basic functions quick guide 119 TCP/IP addressing quick guide 120

UMG 96RM-E

General

This operating manual is subject to the legal requirements for copyright protection and may not be, either in whole or in part, photocopied, reprinted, or reproduced by mechanical or electronic means, or in any other manner be duplicated or redistributed without the legally binding, written agreement of

Janitza electronics GmbH, Vor dem Polstück 1, D 35633 Lahnau, Germany.

Trademarks

All trademarks and their resulting rights belong to the respective holders of these rights.

Disclaimer

Janitza electronics GmbH takes no responsibility for errors or defects within this operating manual and takes no responsibility for keeping the contents of this operating manual up to date.

Comments on the operating manual

We welcome your comments. In the event that anything in this operating manual seems unclear, please let us know and send us an EMAIL to: info@janitza.de

Meaning of the symbols

The following pictograms are used in the operating manual at hand:

Dangerous voltage!

Danger to life or risk of serious injury. Disconnect system and device from power supply before beginning work.

Caution!

Please follow the documentation. This symbol warns of possible dangers that can arise during installation, commissioning and use.

Note!

Instructions for use

UMG 96RM-E

Please read the operating manual at hand as well as all other publications that must be drawn from for working with this product (in particular for the installation, operation or maintenance).

Follow all safety regulations and warning information. If you do not follow the information, it can result in bodily injury and/or damage to the product.

Any unauthorized changes or use of this device, which transcend the mechanical, electrical or otherwise stated operating limitations, can result in bodily injury or/and damage to the product.

Any of such unauthorized changes constitute "misuse" and/or "negligence" in terms of the warranty for the product and therefore eliminates the warranty for covering any potential damage resulting from this.

This device is to be operated and maintained exclusively by specialized personnel.

Specialized personnel are persons, that based on their respective training and experience, are qualiﬁed to recognize risks and prevent potential dangers that can be caused by the operation or maintenance of the device.

Additional legal and safety regulations required for the respective application are to be following during the use of the device.

If the device is not operated according

m m

to the operating manual, protection is no longer ensured and danger can come from the device.

Conductors made from single wires must be ﬁtted with wire-end ferrules.

Only pluggable screw terminals with the same number of poles and the same type of construction are permitted to be connected together.

UMG 96RM-E

Concerning these operating instructions

These operating instructions are a part of the product.

• Read the operating instructions before using the device.

• Keep the operating instructions throughout the entire service life of the product and have them readily available for reference.

• Pass the operating instructions on to each subsequent owner or user of the product.

All screw-type terminals included in delivery are attached to the device.

Inspection on receipt

The prerequisites of faultless, safe operation of this device are proper transport and proper storage, setup and assembly, as well as careful operation and maintenance. If it can be assumed that risk-free operation is no longer possible, the unit must be immediately put out of operation and secured against being put back into operation again. The packing and unpacking must be carried out with the customary care without the use of force and only using suitable tools. The devices should be visually checked for ﬂawless mechanical condition. It can be assumed that risk-free operation is no longer possible if the device, for example,

• has visible damage

• no longer works despite the mains power supply

being intact

• has been exposed to long-term adverse conditions (e.g. storage outside the permissible climate limits without being adapted to the room climate, condensation etc.) or rough handling during transportation (e.g. fall from a height, even if there is no visible external damage etc.)

• Please check the delivered items for completeness before you start installing the device.

Scope of delivery – UMG 96RM-E (RCM)

Number Part no. Description

1 52.22.004 UMG 96RM-E 2 52.22.251 Mounting clips. 1 33.03.145 Operating instructions. 1 51.00.116 CD with following content.

- GridVis programming software

- GridVis functional description 1 10.01.818 Screw-type terminal, pluggable, 2-pole (auxiliary power) 1 10.01.828 Screw-type terminal, pluggable, 4-pole (voltage measurement) 1 10.01.820 Screw-type terminal, pluggable, 6-pole (current measurement I1-I3) 1 10.01.835 Screw-type terminal, pluggable, 2-pole (current measurement I4) 1 10.01.833 Screw-type terminal, pluggable, 10-pole (digital/analogue inputs/outputs) 1 10.01.807 Screw-type terminal, pluggable, 2-pole (RS 485) 1 10.01.808 Screw-type terminal, pluggable, 3-pole (Digital/impulse output) 1 08.01.505 Patch cable 2m, coiled, grey (connection UMG 96RM-PC/Switch)

Available accessories

Part no. Description

21.01.058 Lithium battery CR2032, 3V (approval i.a.w. UL 1642)

29.01.907 Seal, 96 x 96

18.08.094 RS485, external terminating resistor, 120 Ohm

15.06.015 Interface converter RS485 <-> RS232

15.06.025 Interface converter RS485 <-> USB

UMG 96RM-E

Product description

Proper use

The UMG 96RM-E is intended for the measurement and calculation of electrical parameters such as voltage, current, power, energy, harmonics etc. in building installations, on distribution units, circuit breakers and busbar trunking systems. The UMG 96RM-E is suitable for integration into ﬁxed and weatherproof switch panels. Conductive switch panels must be earthed. Can be installed in any attitude.

Measured voltage and measured current must derive from the same network. The measurement results can be displayed and can be read out and further processed via the RS485 interface.

The voltage measurement inputs are designed for measurements in low voltage networks, in which rated voltages of up to 300V relative to earth and surges in overvoltage category III can occur.

The current measurement inputs I1–I4 of the UMG 96RME are connected via external ../1A or ../5A current transformers.

By continuously monitoring the residual currents (RCM) of an electrical system via the inputs I5 and I6, warning pulses can be triggered if a response threshold is exceeded. Using these, the system operator can be alarmed before a protective equipment reacts. The UMG 96RM-E does not provide protection against and electric shock!

The residual current measuring is done via the current measurement inputs I5 and I6 via an external residual current transformer with a rated current of 30 mA.

Measurements in medium and high-voltage networks is always done via current and voltage transformers.

The residual current measuring monitors

residual currents via external current transformers and can trigger a warning impule when a response threshold is exceeded. Thus, the device is NOT an independent protective device!

The UMG 96RM-E can be used in industrial and domestic settings.

Device characteristics

• Supply voltage: 230V (95V-240V AC)

• Frequency range: 45-65Hz

Device functions

• 3 voltage measurements, 300V

• 4 current measurements

(via current transformers ../5A or ../1A)

• 2 residual current measurements (via residual current transformers ../30mA) or optionally 2 temperature measurements

• RS485 interface, Ethernet

• 2 digital outputs and additional 3 digital

inputs/outputs

• Clock and memory function

UMG 96RM-E

Performance characteristics – UMG 96RM-E

General

• Front panel integration device with dimensions 96x96 mm.

• Connection via pluggable screw terminals

• LCD display with backlighting

• Operation via 2 buttons

• 3 voltage and 4 current measurement inputs

• Optional 2 residual current or

temperature measurement inputs

• 2 digital outputs and 3 digital inputs/outputs

• RS485 interface

(Modbus RTU, slave, up to 115 kbps)

• Ethernet (web server)

• 256 MB ﬂash memory

(200 MB available for records)

• Clock and bettery (with battery monitoring function)

• Working temperature range -10°C .. +55°C

Uncertainty in measurement

• Active energy uncertainty in measurement class

0.5 for ../5A transformer

• Active energy uncertainty in measurement class 1 for ../1A transformer

• Reactive energy, class 2

Measurement

• Measurement in IT and TN networks

• Measurement in networks with nominal voltage

up to L-L 480V and L-N 277V

• Measuring range current 0 to 5A eff.

• True RMS (TRMS)

• Continuous sampling of the voltage and current

measurement inputs

• Continuous monitoring of residual currents

• Temperature measurement

• Frequency range of the fundamental oscillation

45Hz .. 65Hz

• Measurements of the harmonic components 1st to 40th for ULN and I

• Uln, I, P (reference/del.), Q (ind./cap.)

• Collection of well over 1000 measured values

• Fourier analyses 1st to 40th harmonic component

for U and I

• 7 energy counters for active energy (reference), active energy (supply), active energy (without return barrier), reactive energy (ind.), reactive energy (cap.), reactive energy (without return barrier), apparent energy, each for L1, L2, L3 and total

UMG 96RM-E

Measuring process

The UMG 96RM-E measures continuously and calculates all effective values over a 9 period interval. The UMG 96RM-E measures the real effective value (TRMS) of the voltage and current connected to the measurement inputs.

Operating concept

You can program and call up the measured values via many routes using the UMG 96RM-E.

• Directly on the device via 2 buttons.

• Using the GridVis programming software.

• Through the device's home page.

• Using the Modbus protocol.

You can modify and call up the data using the Modbus address list. The list can be called up via the device's home page and can be found on the enclosed CD.

This manual only describes how to operate the UMG 96RM-E using the two buttons. The GridVis programming software has its own online help system.

GridVis network analysis software

The UMG 96RM-E can be programmed and read out using the GridVis network analysis software included in the scope of deliverables. For this a PC must be connected to the UMG 96RM-E via a serial interface (RS485) or via Ethernet.

GridVis features

• Programming the UMG 96RM-E

• Graphical representation of measured values

UMG 96RM-E

(gedrehtes Patchkabel)

Connection variants

Connection of a UMG 96RM-E to a PC via a interface converter:

UMG 96RM-E

Connection of a UMG 96RM via a UMG 96RM-E as a gateway.

UMG 96RM-E

UMG 96RM

Direct connection of a UMG 96RM-E to a PC via Ethernet.

(gedrehtes Patchkabel)

(Twisted patch cable)

UMG 96RM-E

Connecting a UMG 96RM-E to a PC via Ethernet.

UMG 96RM-E

Switch

Mounting

Position of installation

The UMG 96RM-E is suitable for integration into ﬁxed and weatherproof switch panels. Conductive switch panels must be earthed.

Mounting position

To ensure adequate ventilation, the UMG 96RM-E must be installed vertically. There should be separation above and below of at least 50mm with 20mm space to the sides.

Front panel section

Cut-out size:

+0.8

x 92

+0.8

mm.

UMG 96RM-E

Fig. mounting position UMG 96RM-E (View from rear)

Failure to meet the minimum clearances can destroy the UMG 96RM-E at high ambient temperatures!

UMG 96RM-E

Mounting

The UMG 96RM-E is ﬁxed using the mounting clips found on the side of the switch panel. Before inserting the device, they should be moved out of the way in a horizontal lever using a screwdriver, for example.

Fig. side view UMG 96RM-E with mounting clips. Loosening the clips is done using a screwdriver and a horizontal lever effect.

The fastening is then done when the device is pushed in an the clamps lock in place when the screws are tightened.

• Please tight the ﬁxing screws until they contact the mounting plate easily.

• Tighten with two further turns, the clamping screws (are the screws tightened too much, the mounting bracket will be destroyed)

Mounting plate

Fixing screw

Mounting clips

Screwdriver

Contacting of the ﬁxing screws to the mounting plate: Tighten with maximum two further turns for the installation

Installation

Power supply

The 96RM-E needs a supply voltage to operate. The supply voltage is connected on the rear of the device via terminal blocks.

UMG 96RM-E

Fuse

Before connecting the supply voltage, ensure that the voltage and frequency correspond to the details on the ratings plate! The supply voltage must be connected through a UL/ IEC approved fuse (1A type C).

• If installed in a building, a disconnector

or circuit-breaker must be provided for the supply voltage.

• The disconnector must be installed near the device and easily accessible to the user.

• The switch must be marked as the circuit breaker for this device.

• Voltages which are over the permitted voltage range can destroy the device.

Circuit breaker

Fig. connection example of the supply voltage to a UMG 96RM

Caution!

The inputs for the supply voltage are hazardous if touched!

UMG 96RM-E

Measuring voltage

You can use the UMG 96RM-E to measure voltage in TN-, TT-, and IT systems. The voltage measurement in the UMG 96RM-E is designed for the overvoltage category 300V CAT III (rated impulse voltage 4 kV).

277V/480V 50/60Hz

V1 V3V2 VN

AC/DC

Measuring voltage

UMG 96RM

Auxiliary power

Fig. schematic diagram - measurements in three-phase 4-wire systems.

In systems without N, the measurements which require an N are to a calculated N.

480V 50/60Hz

Impedance

V3V2

AC/DC

System earthing

Measuring voltage

UMG 96RM

Auxiliary power

Fig. schematic diagram - measurements in three-phase 3-wire systems.

Network nominal voltage

Lists of networks and their nominal network voltages in which the UMG 96RM-E can be used.

UMG 96RM-E

Three-phase, 4-wire systems with earthed neutral conductor.

/ U

L-N

L-L

66V / 115V 120V / 208V 127V / 220V 220V / 380V 230V / 400V 240V / 415V 260V / 440V 277V / 480V

Fig. table for network nominal voltages i.a.w. EN60664-1:2003 suitable for the voltage measurement inputs.

Maximum system nominal voltage

Three-phase, 3-wire systems, unearthed.

L-L

66V 120V 127V 220V 230V 240V 260V 277V 347V 380V 400V 415V 440V 480V

Fig. table for network nominal voltages i.a.w. EN60664-1:2003 suitable for the voltage measurement inputs.

Maximum system nominal voltage

UMG 96RM-E

Voltage measurement inputs

The UMG 96RM-E has three voltage measurement inputs (V1, V2, V3).

Surge voltage The voltage measurement inputs are suitable for use in networks where overvoltages of overvoltage category 300V CATIII (rated impulse voltage 4kV) can occur.

Frequency For the measurement and calculation of measured values, the UMG 96RM-E needs the network frequency. The UMG 96RM-E is suitable for measurements on systems in a frequency range from 45 to 65Hz.

Fuse

Circuit breaker

Fig. Example connection for measuring voltage

UMG 96RM-E

When connecting the voltage to be measured, the following must be observed:

• A suitable isolation device must be ﬁtted to disconnect and de-energise the UMG 96RM-E.

• The isolation device must be placed in the vicinity of the UMG 96RM-E, be marked for the user and easily accessible.

• Use a UL/IEC approved circuit breaker 10A (Type C) for the over-current protection and isolation device.

• The over-current protection must have a rated value which is suitable for the short circuit current at the connection point.

• Measured voltage and measured current must derive from the same network.

Caution!

Voltages which exceed the permitted networkrated voltage must be connected via a voltage transformer.

Caution!

The UMG 96RM-E is not suitable for measuring DC voltages.

Caution!

The voltage measurement inputs on the UMG 96RM-E are dangerous if touched!

Caution!

The voltage measurement inputs may not be used for voltage measurement in SELV circuits (safe extra low voltage).

UMG 96RM-E

Wiring diagrams, voltage measurement

• 3p 4w (Addr. 509= 0), factory setting

V1 V2 V3 VN

Fig. System with three line conductors and neutral conductor.

• 3p 4u (Addr. 509 = 2)

V1 V2 V3 V N

Fig. System with three line conductors without neutral conductor. Measurements which require a N are based on a calculated N.

• 3p 4wu (Addr. 509 = 1)

V1 V2 V3 V N

Fig. System with three line conductors and neutral conductor. Measurement using a voltage transformer.

• 3p 2u (Addr. 509 = 5)

V1 V2 V3 V N

Fig. System with three line conductors without neutral conductor. Measurement using a voltage transformer. Measurements which require a N are based on a calculated N.

UMG 96RM-E

• 1p 2w1 (Addr. 509 = 4)

V1 V2 V3 V N

Fig. The values obtained from the voltage measurement inputs V2 and V3 are taken to be null and not calculated.

• 1p 2w (Addr. 509 = 6)

V1 V2 V3 V N

Fig. TN-C system with single-phase three-wire connection. The null is taken from the voltage measurement input V3's measured value and not calculated.

• 2p 4w (Addr. 509 = 3)

V1 V2 V3 V N

Fig. System with uniform phase loading. The measured values for the voltage measurement input V2 are calculated.

• 3p 1w (Addr. 509 = 7)

L2 L3

L2 L3 N

V1 V2 V3 V N

Fig. 3 systems with uniform phase loading. The not connected measured values L2/L3, L1/ L3, and L1/L2 of each system are calculated.

UMG 96RM-E

Current measurement via I1 to I4

The UMG 96 RM-E is designed to have current transformers with secondary currents from ../1A and ../5A attached cia terminals I1-I4. The factory default for the current transformer ratio is 5/5A and must be adapted to the current transformer employed if necessary. Direct measurement without a current transformer is not possible using the UMG 96RM-E. Only AC currents can be measured - DC currents cannot.

Via the current measurement input I4 only an apparent current measurement is carried out thanks to the lack of a multiplier. Power measurements are therefore not possible using the I4 input.

Load

Fig. Current measurement (I1-I3) via current transformers (connection example)

Caution!

The current measurement inputs are dangerous to touch.

The attached screw terminal has to be ﬁxed sufﬁciently with two screws on the device!

UMG 96RM-E

Earthing of current transformers!

If a connection is provided for the earthing of secondary windings then this must be connected to the earth.

Caution!

The UMG 96RM-E is not suitable for measuring DC voltages.

It is not necessary to conﬁgure a connection schematic for the I4 measurement input.

Load

Fig. Current measurement (I4) via current transformer (connection example)

UMG 96RM-E

Current direction

The current direction can be individually corrected via the existing serial interface or on the device for each phase. If incorrectly connected, a subsequent re-connection of the current transformer is not required.

When residual current measurements (RCM) are being carried out, there is no direction sensitive difference in the residual currents on the network or load side (not directionally sensitive).

Current transformer connections!

The secondary connection of the current transformer must be short-circuited on this before the current feed to the UMG 96RME is disconnected! If a test switch, which automatically shortcircuits the secondary wires of the current transformer, is available then it is sufﬁcient to set this to the "Test" position insofar as the short-circuiting device has been checked beforehand.

Caution!

A residual current measurement is done using the terminals I5 and I6 (see page 30). There is no directional sensitivity of the residual currents on the network or load sides (not directionally sensitive).

Earthing of current transformers!

If a connection is provided for the earthing of secondary windings then this must be connected to the earth.

Open-circuit current transformers!

High voltage spikes that are dangerous to touch can occur on current transformers that are driven with open-circuit secondary windings! With "safe open-circuit current transformers" the winding insulation is rated such that the current transformer can be driven open. However, even these current transformers are dangerous to touch when they are driven open-circuit.

UMG 96RM-E

Wiring diagrams, current measurement (I1-I3)

• 3p 4w (Addr. 510= 0), factory setting • 3p 2i (Addr. 510 = 1)

I1 I2 I3

Fig. Measurement in a three-phase network with non-uniform load.

• 3p 2i0 (Addr. 510 = 2)

I1 I2 I3

Fig. The measured values for the current measurementinput I2 are calculated.

I1 I2 I3

Fig. System with uniform phase loading. The measured values for the current measurement input I2 are measured.

• 3p 3w3 (Addr. 510 = 3)

I1 I2 I3

Fig. Measurement in a three-phase network with non-uniform load.

UMG 96RM-E

• 3p 3w (Addr. 510 = 4)

I1 I2 I3

Fig. System with uniform phase loading. The measured values for the current measurement inputs I2 and I3 are calculated.

• 1p 2i (Addr. 510 = 6)

I1 I2 I3

Fig. The null is taken from the current measurement input I3's measured value and not calculated.

• 2p 4w (Addr. 510 = 5)

I1 I2 I3

Fig. System with uniform phase loading. The measured values for the current measurement input I2 are calculated.

• 1p 2w (Addr. 510 = 7)

I1 I2 I3

Fig. The null is taken from the current measurement inputs I2 and I3 measured values and not calculated.

UMG 96RM-E

Wiring diagrams, current measurement (I1-I3)

• 3p 1w (Addr. 510 = 8)

L2 L3

I1 I2 I3

Fig. 3 systems with uniform phase loading. The not connected measured values I2/I3, I1/I3 and I1/I2 of the respective systems are calculated.

Ammeter

If you wish to measure the current not just using the UMG 96RM, rather also with a ammeter, the ammeter must be connected to the UMG 96RM-E in series.

UMG 96RM

1 2

Einspeisung Power supply

(k)S

(K)P

S2 (l)

P2 (L)

Verbraucher

Consumer

Fig. Current measurement with an additional ammeter (example).

Total current measurement

UMG 96RM-E

If the current measurement is done via two current transformers, the overall transformation ratio of the current transformers must be programmed into the UMG 96RM-E.

UMG 96RM

1 2

Einspeisung 1 Supply 1

1P11S

(K)

(L)

1P21S

Verbraucher A Consumer A

(k) (l)

Einspeisung 1

Supply 1

2S12P

(k)

(l)

2S22P

Verbraucher B

Consumer B

(K) (L)

Fig. Current measurment using a total current transformer (example).

Example: The current is measured via two current transformers. Both current transformers have a transformation ratio of 1000/5A. The total measurement is done using a total current transformer 5+5/5A.

The UMG 96RM-E must then be setup as follows: Primary current: 1000A + 1000A = 2000A Secondary current: 5A

UMG 96RM-E

Analog inputs

The UMG 96RM-E has 2 analog inputs which can be used for one residual current measurement or one temperature measurement. The measurement is done using terminals 32-34 (input 1) or 35-37 (input 2).

The analog inputs can be used for residual current or temperature measurement in accordance with the following table:

Measurement Terminal

Temperature 32/34 (input 1) and

Residual current 33/34 (input 1) and

35/37 (input 2)

36/37 (input 2)

Residual current measurement (RCM) via I5, I6

The UMG 96RM-E is for use as a residual current monitoring device (RCM), suitable for monitoring AC, pulsing DC, and DC.

The UMG 96RM-E can measure residual currents in accordance with IEC/TR 60755 (2008-01)

of type A and

type B.

The connection from suitable external residual current transformers with a rated current of 30 mA is done via the residucal current transformer inputs I5 (terminals 33/34) and I6 (terminals 36/37).

UMG 96RM-E

Residual current transformer ratio

The GridVis software included with delivery can be used to individually program the residual current transformer inputs' transformer ratios.

Load

Fig. Connection example residual current measurement via current transformers

L2 L3N L1

UMG 96RM-E

Connection example, residual current monitoring

PEN

Fig. Example UMG96RM-E with residual current monitoring via measuring inputs i5/I6.

L1 L2 L3 N I1 I2 I3

UMG 96RM-E (RCM)

Residual current transformer

It is not necessary to configure a connection schematic for residual current inputs I5 and I6.

Temperature measurement input

The UMG 96RM-E has two temperature measuring inputs. The temperature is measured via terminals 32/34 (input 1) and 35/37 (input 2).

Do not exceed the total resistance load (sensor + cable) of 4kOhm.

UMG 96RM-E

PT100

Use a shielded cable to connect the temperature sensor.

Fig. Example, temperature measurement with a Pt100

UMG 96RM-E

RS485 interface

In UMG 96RM-E, the RS485 interface is designed as a 2 pin plug contact, which communicates via the Modbus RTU protocol (also see Parameter programming).

A B

RS485 interface, 2 pin plug contact

Termination resistors

The cable is terminated with resistors (120Ohm, 1/4W) at the beginning and at the end of a segment.

The UMG 96RM-E does not contain any termination resistors.

Correct

Incorrect

Terminal strip in the cabinet.

Device with RS485 interface. (without terminating resistor)

Device with RS485 interface. (with terminating resistor on the device)

UMG 96RM-E

Screening

Twisted screened cable should be used for connections via the RS485 interface.

• Earth the screens of all cables that lead to the cabinet, upon entering the cabinet.

• Connect the screens over a generous area and in a manner that will conduct well, to a low-noise earth.

• Gather the cables mechanically above the earthing clamp in order to avoid damage due to cable movements.

• Use suitable cable glands to feed the cables into the cabinet - for example armoured conduit couplings.

Cable type

The cable used must be suitable for an environmental temperature of at least 80°C.

Recommended cable types: Unitronic Li2YCY(TP) 2x2x0.22 (from Lapp Kabel) Unitronic BUS L2/FIP 1x2x0.64 (from Lapp Kabel)

Maximum cable length

1200m at a baud rate of 38.4k.

Cable

Strain relief

Screen braid of the cable

Earthing clamp

Low-noise earth

Fig. Screening procedure at cabinet entry.

UMG 96RM-E

Bus structure

• All devices are connected in a bus structure (line) and each device has its own address within the bus (see also Parameter programming).

• Up to 32 subscribers can be connected together in a single segment.

• The cable is terminated with resistors (bus termination 120Ohm, 1/4W) at the beginning and at the end of a segment.

• With more that 32 subscribers, repeaters (ampliﬁers) must be used to connect the individual segments.

• Devices for which the bus connection is switched on must be under current.

Master

Slave Slave Slave Repeater

Power supply necessary

Bus terminator on

Slave Slave Slave Slave

SlaveSlaveSlave

• It is recommended that the master be placed at the end of a segment.

• If the master is replaced with a bus connection, the bus must be switched off.

• Replacing a slave with a bus connection that is either switched on or de-energised can destabilise the bus.

• Devices that are not connected to the bus can be replaced without destabilising the bus.

Fig. Bus structure

Ethernet interface

UMG 96RM-E

The Ethernet network settings should be speciﬁed by the network administrator and set on UMG 96RM-E accordingly. If the network settings are not known, the UMG 96RME may not be integrated into the network through the patch cable.

Ethernet

Connection

PC / Switch

Caution!

Connection of the UMG96RM-E to the Ethernet may only be carried out after discussion with the network administrator!

Caution!

The UMG 96RM-E is factory-programmed for the fixed IP address 192.168.0.123. The allocation of a dynamic IP address is disabled. Settings can be changed as described in TCP/IP Conﬁguration or, for example, via an appropriate Ethernet connection by means of GridVis software.

UMG 96RM-E

Digital in-/outputs

The UMG 96RM-E has 2 digital outputs and 3 optional digital inputs or outputs, which are divided into two groups (see ﬁgure). This means that only entire group 2 (connection 28 to 31) operate either as input or output; a different allocation within the group is not possible! The status of the inputs or outputs of Group 2 is signalled via the corresponding LED (see LED status bar).

Digital outputs

These outputs are galvanically separated from the analysis electronics using optocouplers. The digital outputs have a joint reference.

• The digital outputs can switch AC and DC loads.

• The digital outputs are not short-circuit proof.

• Connected cables that are longer than 30m must

be shielded when laid.

• An external auxiliary voltage is required.

• The digital outputs can be used as impulse outputs.

• The digital outputs can be controlled via Modbus.

• The digital outputs can display the results

of comparators.

Group 1

Group 2

Fig. Connection

digital / pulse outputs

DC connection example

UMG 96RM-E

External

Auxiliary voltage

24V DC

Caution!

Digital outputs are not short-circuit proof.

Functions for the digital outputs can be adjusted clearly in the GridVis software provided in the scope of deliverables. A connection between the UMG 96RM-E and the PC via an interface is required for the use of the GridVis software.

When using the digital outputs as pulse outputs the auxiliary voltage (DC) must have a max. residual ripple of 5%.

Digital Ouput 1

Group 1:

Digital Ouput 2

Digital Ouput 3

Group 2:

Fig. Example for two relays connected to the digital outputs

Digital Ouput 4

Digital Ouput 5

UMG 96RM-E

Digital inputs

When allocating Group 2 as inputs, the UMG96 RM-E has three digital inputs to each of which you can connect one signal transducer. When a signal is present, the corresponding LED lights up green.

An input signal is detected on a digital input if a voltage of at least 10V and maximum 28V is applied and where a current of at least 1mA and maximum 6mA ﬂows at the same time. Wiring longer than 30m must be screened. Note the correct polarity of the supply voltage!

Group 2

UMG 96RM-E

Digital inputs 1-3

2k21

Digital

Input 1

Digital

Input 2

Digital

Input 3

External

Auxiliary voltage

24V DC

Fig. Connection example for digital inputs.

Fig. Example for the connection of external switch contacts S1 and S2 to digital inputs 1 and 2.

S0 pulse input

UMG 96RM-E

You can connect an S0 pulse transducer per DIN EN62053-31 to any digital input.

This requires an auxiliary voltage with an output voltage in the range 20 .. 28V DC and a resistor of 1.5kOhm.

External

Auxiliary voltage

UMG 96RM-E

Digital inputs 1-4

2k21

Digital

Input 1

Digital

Input 2

Digital

Input 3

1.5k

Fig. Example for the connection of an S0 pulse transducer to digital input 1.

24V DC

S0 pulse

transducer

UMG 96RM-E

LED status bar

The different statuses of the inputs and outputs are displayed via the LED status bar on the rear of the device.

Digital inputs

The LED assigned to a respective input lights up green when a signal of at least 1mA ﬂows on this interface.

Digital outputs

The LED assigned to a respective output lights up red when the output is set as enabled - regardless of whether there is a continuing connection to this interface.

Digital in-/output 1

Digital in-/output 2

Digital in-/output 3

LED status bar

Fig. LED status bar for inputs and outputs

UMG 96RM-E

Operation

The UMG 96RM-E is operated via buttons 1 and 2 with the following functions:

• brieﬂy pressing button 1 and 2: next step (+1)

• pressing and holding button 1 and 2: previous step (-1)

Measured values and programming data are displayed on an LCD display.

There are display and programming modes. You can avoid an unintentional change of programming data by entering a password.

Display mode

In display mode, you can scroll through the programmed measured values by pressing buttons 1 and 2. When the device is delivered, all measured value indications of proﬁle 1 can be retrieved. For each measured value, up to three measured values are indicated. The measured value rotation can display selected measured value indications one after the other with a selectable changing time.

Programming mode

You can view and change the necessary settings of the UMG 96RM-E in programming mode. Press button 1 and 2 simultaneously for about 1 second to switch to programming mode after entering the password. If no password is programmed, you get directly to the programming mode menu. Programming mode is marked by the text „PRG“ on the display.

Press button 2 to switch between the following menus:

- Current transformer,

- Voltage transformer,

- Parameter list,

- TCP/IP device address,

- Subnet mask,

- Gateway address,

- Dynamic TCP/IP addressing (in/out).

If no button was pressed for about 60 seconds when you are in programming mode, or button 1 and 2 are pressed simultaneously for about 1 second, the UMG 96RM-E will switch back to display mode.

Supply

Max. value, HT/reference

Min. value, NT/supply

Mean value

Programming mode

Total measurement

External conductor External conductor

Password

CT: current transformer VT: voltage transformer

K1: output 1 K2: output 2

Button 2

Button 1

UMG 96RM-E

Parameters and measured values

All necessary parameters for the use of UMG 96RM-E, such as current transformer data and frequently required measured values are provided in the table. Use the UMG 96RM-E buttons to retrieve the contents of most of the addresses via serial interface.

You can only enter the ﬁrst 3 signiﬁcant digits of a value on the device. Values with more digits can be entered using GridVis. The ﬁrst 3 signiﬁcant digits of a value are displayed on the device.

Selected measured values are summarized in measured value proﬁles and can be indicated in display mode by pressing button 1 and 2.

The current measured value proﬁle, the display change proﬁle, plus date and time can be read and changed via the RS485 interface only.

Parameter indication example

In this example, the contents of address "000" is indicated by the value "001" on display of the UMG 96RM-E. This parameter speciﬁes the device address (in this case "001") according to the list of the UMG 96 RM-E within a bus.

Measured value indication example

In this example, the voltage L-N is indicated by 230V on the display of the UMG 96RM-E. The transistor outputs K1 and K2 are active, which ensures the current ﬂow.

Button functions

UMG 96RM-E

Display mode

Select mode

simultaneously

Scroll

short

long

Measured value

For an overview of the measured value indications, see chapter "Overview of measured value indications".

A(+1)

A(-1)

long short

Measured value

B ...

Password

Programming

menu 1

(ﬂashing)

Programming mode

short

long

(ﬂashing)

Select mode

simultaneously

Scroll

Programming

menu +1

...

Programming

menu -1

Program

Conﬁrm selection

short: Number +1

long: Number -1

short: Value x 10

(Decimal point to the

right) long: Value/10

(Decimal point to the left)

UMG 96RM-E

Conﬁguration

Connecting the supply voltage

The supply voltage must be connected for the conﬁguration of the UMG 96RM-E .

The level of the supply voltage for the UMG 96RM-E is speciﬁed on the rating plate.

If no display appears, check whether the operating voltage lies within the nominal voltage range.

Current and voltage transformers

When the device is delivered, a current transformer ratio of 5/5A is entered. The voltage transformer ratio must only be changed if a voltage transformer is connected.

When connecting a voltage transformer, please note the measurement voltage of UMG 96RM-E given on the rating plate.

Caution!

If the supply voltage does not correspond to the voltage indicated on the rating plate, this may lead to malfunctions severe damage to the device.

The adjustable value 0 for the primary current transformer does not produce any useful work data, and should not be used.

Devices with an automatic frequency detection require about 5 seconds to determine the mains frequency. In the meantime, measured values do not maintain the guaranteed measurement uncertainty.

UMG 96RM-E

Current and voltage transformers

The GridVis software included with delivery can be used to individually program the current and voltage transformer input transformer ratios.

Only the transformer ratio of the respective group of the current inputs I1-I3 and the voltage measurement inputs V1-V3 can be adjusted on the device.

The transformer ratio of the current

transformer input I4 and the residual current transformer inputs I5, I6 should

be set in the GridVis software.

Current transformer input I4

Thus, with a voltage only an apparent current can be measured at the current converter input l4 due to the multiplier being missing. This input can not be used for power measurements. The transformer ratio can be adjusted in the GridVis software.

Fig. Indication to conﬁgure the current and voltage transformers in the GridVis software.

UMG 96RM-E

Programming the current transformer for I1 to I3

Switch to the programming mode

• Press button 1 and 2 simultaneously to switch to the programming mode. If a user password was programmed, the password menu appears in display with the indication „000“. The ﬁrst digit of the user password is ﬂashing and can be changed by pressing button 2. Press button 2 to select the next digit while it is ﬂashing. You can get to the programming mode after entering the correct code, or if no user password was programmed.

• The symbols for the programming mode PRG and the current transformer mode CT appear on the display.

• Press button 1 to conﬁrm the selection.

• The ﬁrst digit of the input ﬁeld for the primary current

is ﬂashing.

Input of the current transformer primary current

• Press button 2 to change the ﬂashing digit.

• Press button 1 to select the next digit to be changed.

The selected digit to be changed is ﬂashing. If the entire number is ﬂashing, press button 2 to move the decimal point.

Input of the current transformer secondary current

• Only 1A or 5A can be set as secondary current.

• Press button 1 to select the secondary current.

• Press button 2 to change the ﬂashing digit.

Exit programming mode

• Press both buttons simultaneously to exit the programming mode.

UMG 96RM-E

Programming the voltage transformer

• Select in the programming mode as described. The symbols for the programming mode PRG and the current transformer mode CT appear on the display.

• Press button 2 to go to the voltage transformer settings.

• Press button 1 to conﬁrm the selection.

• The ﬁrst digit of the input ﬁeld for the primary voltage

is ﬂashing. The voltage transformer ratio can be set from primary to secondary voltage in a way similar to the allocation of the current transformer ratio.

Current transformer, primary

Programming mode

Display of units

Current transformer, secondary

Current transformer symbol

Voltage transformer, primary

Programming mode

Display of units

Voltage transformer, secondary

Voltage transformer symbol

UMG 96RM-E

Programming parameters

Switch to the programming mode

• Select in the programming mode as described. The symbols for the programming mode PRG and the current transformer mode CT appear on the display.

• Press button 2 to go to the voltage transformer settings. Press button 2 repeatedly to view the ﬁrst parameter in the list.

Changing parameters

• Press button 1 to conﬁrm the selection.

• The last selected address and the corresponding

value is indicated.

• The ﬁrst digit of the address is ﬂashing and can be changed by pressing button 2. Press button 1 to select and change the digit.

Change value

• If the desired address is set, press button 1 to select a number of the value and change it by pressing button 2.

Exit programming mode

• Press both buttons simultaneously to exit the programming mode.

Fig. Password query

Use button 1 and 2 to enter a password (if any).

Fig. Current transformer programming mode

Use button 1 and 2 to change primary and secondary current (see page 50).

Fig. Programming mode Voltage converter

Use button 1 and 2 to change primary and secondary voltage (see page 51).

Fig. Programming mode Parameter indication

Use button 1 and 2 to change individual parameters (see page 46).

UMG 96RM-E

TCP/IP conﬁguration

Within an Ethernet, each device has a unique TCP / IP address that can be assigned manually or from a DHCP server. The 4-byte device address (0 to 3 byte) can be extended in the TCP / IP conﬁguration using the subnet mask and gateway data.

Setting the TCP / IP device address (addr) manually

• Select in the programming mode as described. The symbols for the programming mode PRG and the current transformer mode CT appear on the display.

• Press button 2 three times to get to the TCP / IP settings for the device addressing.

• Press button 1 to select the desired digit. The selection is indicated by a ﬂashing digit.

• Press button 2 to adjust the selected digit.

• Use button 1 to select the next digit and set it again

by pressing button 2.

• If byte is set to 0, the TCP / IP address can be set from 1 to 3 by pressing button 1. Then the display jumps back to Byte 0 (no digit is ﬂashing).

Description

Byte identiﬁcation (e.g. byte 0) of the address

Address value, byte 0

Fig. TCP/IP address, byte 1

A TCP / IP address consists of 4 bytes with the following structure:

Byte 1Byte 0 Byte 2 Byte 3

xxx.xxx.xxx.xxx

192.168.003.177Example:

Fig. TCP / IP address, byte 2, value 003

Fig. TCP / IP address, byte 3, value 177

UMG 96RM-E

Manual setting of the subnet mask (SUb)

• When in the programming mode, press button 2 to get to the subnet mask settings (SUb display).

• Use button 1 to select the desired digit and set it by pressing button 2. Repeat this step for each digit in bytes 0 to 3 in a way similar to setting the TCP / IP device address.

• After repeated display of byte 0 (no digit is ﬂashing) one can set the gateway address.

Manual setting of the gateway address (GAt)

• When in the programming mode, press button 2 to get to the gateway address settings (GAt display).

• Press buttons 1 and 2 to set the desired gateway address in bytes 0 to 3 as described above.

Disable the dynamic IP allocation (dYN IP, oFF) to ensure that the manual settings of the TCP / IP device address, subnet mask and gateway address are not overwritten by a DHCP server.

Changes will only take effect after you exit the programming mode.

Dynamic IP allocation (dyn) The dynamic allocation of the TCP / IP settings (device/ gateway address and subnet mask) provides for a fully automated integration of the device into an existing network with a DHCP server. TCP / IP settings do not need to be conﬁgured manually as they are automatically assigned by the DHCP server when the device is started.

Addresses are read out in the programming mode the same way as in the manual settings.

• Switch to the programming mode as described. The symbols for the programming mode PRG and the current transformer mode CT appear on the display.

• Press button 2 several times to display the dynamic IP allocation (dYn IP).

• Press button 1 to enable the parameter "on" or "oFF" (parameter is ﬂashing).

• Press button 2 to select the parameter and conﬁrm by pressing button 1. Exit the programming mode or wait about 60 seconds.

If the key symbol is displayed, the dynamic IP allocation is enabled. Device / gateway address and subnet mask are provided and automatically accepted by the DHCP server.

Fig. Subnet mask (Sub), byte 0, value 255

Fig. Gateway (GAt), byte 0, value 192

Fig. Enabled dynamic allocation (dYn IP) of the TCP / IP address

Fig. Disabled dynamic allocation (dYn IP) of the TCP / IP address

UMG 96RM-E

Caution!

Connection of the UMG96RM-E to the Ethernet may only be carried out after discussion with the network administrator!

The UMG 96RM-E is factory-programmed for the ﬁxed IP address 192.168.0.123.

UMG 96RM-E

RS485 device address (Addr. 000)

If multiple devices are connected to each other via the RS485 interface, a master device can only identify the devices by their device address. Within a network, each device must have its own device address. Addresses can be set in the range of 1 to 247.

The adjustable range of the device address

is between 0 and 255. Values 0 and 248 through 255 are reserved and may not be used.

RS485 baud rate (Addr. 001)

A common baud rate can be adjusted for the RS485 interfaces. The baud rate must be uniform for all devices on the network. Address 003 can be used to set the number of stop bits (0=1bit, 1= 2bits). Data bits (8) and parity (none) are ﬁxed default values.

Setting Baud rate

0 9.6kbps

1 19.2kbps

2 38.4kbps

3 57.6kbps

4 115.2kbps (factory setting)

UMG 96RM-E

MODBUS gateway (Addr. 002)

Set address 002 as described in the table below to use the UMG 96RM-E Modbus Gateway function:

Setting Baud rate

1 Modbus Gateway enabled (ON)

Modbus Gateway disabled (OFF) (Factory setting)

User password (Addr. 050)

A user password can be programmed to prevent accidental change of the programming data. Changes in the programming menu below can only be made after entering the correct user password. User password is not factory-programmed. In this case, the password menu is skipped and you get directly to the current transformer menu.

If a user password was programmed, the password menu appears on the display with the indication „000“. The ﬁrst digit of the user password is ﬂashing and can be changed by pressing button 2. Press button 1 to select the next digit while it is ﬂashing. You can only get to the current transformer programming menu after entering the correct code.

Forgot my password

If you do not remember your password, you can only delete it using the GridVis PC software. In order to do so, connect the UMG96RM-E to the PC with a suitable interface. More information can be found in the GridVis assistant.

UMG 96RM-E

Parameter

Mean value

Mean values are averaged over an adjustable period for the current, voltage and power measured values. The mean values are indicated by a bar over the measured value. The averaging time can be selected from a list with 9 ﬁxed averaging times.

Averaging time, current (Addr. 040) Averaging time, power (Addr. 041) Averaging time, voltage (Addr. 042)

Setting Averaging time/sec.

0 5 1 10 2 15 3 30 4 60 5 300 6 480 (factory setting) 7 600 8 900

Averaging method

The applied exponential messaging method reaches at least 95% of the measurement value once the reporting time has run its course.

Average = Average - 1 + (Measured - Average - 1) / N

Average = Mean value displayed Measured = Measured value n = Continuous measured value number N = Number of measured values to be averaged.

UMG 96RM-E

Min. and max. values

All measured values are measured and calculated during all 9 periods. Minimum and maximum values are determined for most measured values. The min. value is the smallest measured value determined since the last deletion. The max. value is the highest measured value determined since the last deletion. All minimum and maximum values are compared with the corresponding measured values and overwritten when exceeded or fallen short of. The minimum and maximum values are saved every 5 minutes in an EEPROM without date and time. Thus, the minimum and maximum values of the past 5 minutes may be lost due to an operating voltage failure.

Delete min. and max. values (Addr.506)

If "001" is set for address 506, all minimum and maximum values can be deleted simultaneously. One exception is the maximum value of the mean current. Press and hold button 2 to delete the maximum value of the mean current in the display menu.

Energy meter

The UMG 96RM-E has power meters for active energy, reactive energy and apparent energy.

Active energy reading

Total active energy

The active energy given in this example is 12 345 678 kWh

The active energy given in this example is 134 178 kWh

UMG 96RM-E

Mains frequency (Addr. 034)

In order to determine the mains frequency automatically, a voltage L-N of greater than 10Veff must be applied to at least one of the voltage measurement inputs.

The sampling frequency is computed for the current and voltage inputs based on the mains frequency.

If the test voltage is missing, neither the network nor the sampling frequency can be computed. An acknowledgeable error message "500" will be displayed. Voltage, current and all resulting values are calculated and displayed based on the most recent frequency measurement and/or possible power couplings. The measured values that have been determined can no longer guarantee the declared precision.

When another measurement of frequency can be carried out, the error message will automatically disappear in about 5 seconds after the voltage returns.

The error is not displayed when a ﬁxed frequency is set.

Setting range: 0, 45 .. 65

0 = automatic frequency determination. The mains frequency is determined based on the measurement voltage.

45..65 = ﬁxed frequency The mains frequency is pre-selected as a ﬁxed value.

UMG 96RM-E

fund

Harmonics

Harmonics are integer multiples of a fundamental oscillation. The fundamental oscillation of the voltage for UMG 96RM-E must range between 45 and 65Hz. The calculated harmonic voltages and currents relate to this fundamental oscillation. Harmonics up to 40 times the fundamental frequency are detected.

The harmonics of the currents and of the voltages are displayed in amperes and volts, respectively.

Number of the harmonic component

Phase L3

Current harmonics

Value

Fig. Indication of the 15th harmonics of the current in phase L3 (example).

Harmonics are not displayed in the default factory setting.

Total harmonic distortion THD

THD is the ratio of the rms value of the harmonics to the rms value of the fundamental oscillation.

Total harmonic distortion of the current THDI:

∑

nHarm

Total harmonic distortion of the voltage THDU:

∑

nHarm

Phase L3

Voltage

Value

Fig. Indication of the total harmonic distortion THD of the voltage of phase L3 (example).

UMG 96RM-E

Measured value rotation

All 9 periods the measured values are calculated and the readings are displayed on a per second basis. There are two ways to retrieve the measurement readings:

• The automatically changing indication of the selected measurement readings is referred to herein as measured value rotation.

• Press button 1 and 2 to select measured value indication from a pre-selected display proﬁle.

Both methods are available simultaneously. The measured value rotation is enabled when at least one measured value indication change time is over 0 seconds. Press a button to scroll the measured value indications of selected display proﬁle. If no button is pressed for about 60 seconds, the device will switch to the measured value rotation to display the programmed measured value indications from the selected rotation proﬁle in succession.

Rotation time (Addr. 039)

Setting range : 0 .. 60 seconds If 0 seconds are set, the measured value indications selected will not be rotated. The rotation time set applies to all display rotation proﬁles.

Display rotation proﬁle (Addr. 038)

Setting range: 0 .. 3 0 - Display rotation proﬁle 1, pre-programmed. 1 - Display rotation proﬁle 2, pre-programmed. 2 - Display rotation proﬁle 3, pre-programmed. 3 - Display rotation proﬁle, customizable.

Measured value indocations

Following a power resumption, the UMG 96RM-E displays the ﬁrst measurement value table in the current display proﬁle. To keep the selection to a manageable size, only a fraction of the available measurement values was preprogrammed in the factory for retrieval in the measured value display. Select another display proﬁle to view other measured values on the UMG 96RM-E display.

Display proﬁle (Addr. 037)

Setting range: 0 .. 3 0 - Display proﬁle 1, default value. 1 - Display proﬁle 2, default value. 2 - Display proﬁle 3, default value. 3 - Display proﬁle, customizable.

The customizable profiles (display rotation

profile and display profile) can only be programmed using the GridVis software.

Proﬁle setting

Both profiles (display rotation profile and display profile) are illustrated in the GridVis software included in the delivery package. The profiles can be adjusted using the Device Configuration function of the software; customizable display proﬁles are programmed individually. A connection between the UMG 96RM-E and the PC via an interface is required for the use of the GridVis software

UMG 96RM-E

Fig. Proﬁle setting in the GridVis software.

UMG 96RM-E

Reset energy meter (Addr. 507)

The real, apparent and reactive energy meters can only be reset simultaneously.

Set "001" for address 507 to reset the energy meter.

If you reset the energy meter, the data will

be lost. To avoid data loss, you should read and save the measured values before deletion using the GridVis software.

Phase sequence

The voltage phase sequence and the phase L1 frequency are displayed on the screen.

The phase sequence shows the three-phase system sequence. The rotary ﬁeld usually rotates to the "right". The voltage measurement input phase sequence is checked and displayed in the UMG 96RM-E. If the string moves in a clockwise direction, this means that the rotary ﬁeld rotates to the "right"; if the string moves in a counter-clockwise direction, this means that the rotary ﬁeld rotates to the "left". The ﬁeld rotation can only be determined when the measurement and operating voltage inputs are fully connected. If a phase is missing or two equal phases are connected, then the phase sequence is not determined and the string is not moving.

Fig. Indication of the supply frequency (50.0) and the phase sequence.

Fig. Rotary ﬁeld direction can not be determined.

UMG 96RM-E

LCD contrast (Addr. 035)

The preferred view for the LCD display is from "below". The LCD display contrast can be adapted by the user. The contrast can be set stepwise in the range from 0 to 9.

0 = very bright 9 = very dark

Factory default setting: 5

Background lighting (Addr. 036)

The LCD background lighting allows the display to be read easily even in poor light. The brightness of the background lighting can be controlled by the user stepwise within a range of 0 to 9.

0 = min. brightness of the background lighting 9 = max. brightness of the background lighting

Factory default setting: 6

Time recording

The UMG 96RM-E records the operating hours and the overall runtime of each comparator,

• where the operating period is measured and displayed in hours with a resolution of 0.1 h

• and the overall runtime of the comparators is displayed in seconds (when reaching 999999s is displayed in hours).

The periods are marked by the digits 1 to 6 for the measured value display enquiry:

keine = operating hours meter 1 = Overall runtime, comparator 1A 2 = Overall runtime, comparator 2A 3 = Overall runtime, comparator 1B 4 = Overall runtime, comparator 2B 5 = Overall runtime, comparator 1C 6 = Overall runtime, comparator 2C

In the measured value display, a maximum of 99999.9 h (= 11.4 years) can be displayed.

UMG 96RM-E

Operating hours meter

The operating hours meter measures the UMG 96RM-E recording and displaying time. The operating period is measured and displayed in hours with a resolution of 0.1 h. The operating hours meter cannot be reset.

Overall runtime of comparators

The overall runtime of a comparator is the sum of the runtimes exceeding the comparator result limit value. The total running time of the comparators can only be reset by the GridVis software. All running times are reset simultaneously.

Fig. Measured value indications Operating hours meter The UMG 96RM-E operating hours meter reading is 140.8h. This corresponds to 140 hours and 80 industrial minutes. 100 industrial minutes = 60 minutes. In this example, 80 industrial minutes = 48 minutes.

Serial number (Addr. 754)

The serial number displayed by the UMG 96RM-E consists of 6 digits and is a part of the serial number given on the rating plate. The serial number cannot be changed.

Serial number

The serial number is on the rating plate: XX00-0000

Software release (Addr. 750)

The UMG 96RM-E software is continuously improved and extended. The software status in the device is identiﬁed with a 3 digit number, the software release. The software release cannot be changed by the user.

Recordings

UMG 96RM-E

2 recordings are preconﬁgured in the default factory setting of the UMG 96RM-E. Recordings can be adjusted and extended via GridVis.

• The min. recording time base is 1 minute.

• Maximum 4 recordings, each with 100 measured

values, are possible.

Recording 1:

The following measured values are recorded with the time base of 15 minutes:

• Effective voltage L1

• Effective voltage L2

• Effective voltage L3

• Effective current L1

• Effective current L2

• Effective current L3

• Effective current sum L1..L3

• Effective power L1

• Effective power L2

• Effective power L3

• Effective power sum L1..L3

• Apparent power L1

• Apparent power L2

• Apparent power L3

• Apparent power sum L1..L3

• cos phi(math.) L1

• cos phi(math.) L2

• cos phi(math.) L3

• cos phi(math.) sum L1..L3

• Reactive power fundamental oscillation harmonic L1

• Reactive power fundamental oscillation harmonic L2

• Reactive power fundamental oscillation harmonic L3

• Reactive power fundamental oscillation harmonic

sum L1..L3

The mean value, minimum value and maximum value are also recorded for each measured value.

Recording 2:

The following measured values are recorded with the time base of 1 hour:

• Effective energy sum L1..L3

• Inductive reactive energy sum L1..L3

UMG 96RM-E

Putting into service

Connecting the supply voltage

• The power supply voltage level for the UMG 96RM-E is given on the rating plate.

• After applying the power supply voltage the device switches on to display the ﬁrst measured value.

• If no display appears, check whether the power supply voltage is within the rated voltage range.

Applying the measuring-circuit voltage

• Measurement of voltages in the mains with over 300VAC to earth must be connected via voltage transformers.

• After connecting the measurement-current voltages, the measured values displayed by the UMG 96RM-E for the L-N and L-L voltages must correspond to those at the voltage measurement input.

Caution!

Voltages and currents that are outside the permissible measuring range can lead to personal injury and damage the device.

Applying the measuring-circuit voltage

The UMG 96RM-E is designed for the connection of .. /1A and .. /5A current transformers. Only AC currents can be measured via the current measurement inputs - DC currents cannot. Short circuit all current transformer outputs except for one. Compare the currents displayed by the UMG 96RM with the applied current. Bearing in mind the current transformer conversion ratio, the current displayed by the UMG 96RM-E must correspond with the input current. The UMG 96RM-E must display approx. zero amperes in the short-circuited current measurement inputs. The current transformer ratio is factory set to 5/5A and must be adapted to the current transformer used if necessary.

Caution!

If the supply voltage does not correspond to the voltage indicated on the rating plate, this may lead to malfunctions severe damage to the device.

Caution!

The UMG 96RM is not suitable for measuring DC voltages.

UMG 96RM-E

Applying the residual current

Connect residual current transformer only to the I5 and I6 inputs with a rated current of 30mA! Both residual current inputs can measure AC currents, pulsing direct currents and DC currents.

Bearing in mind the current transformer conversion ratio, the residual current displayed by the UMG96RM-E must correspond with the input current.

The current transformer ratio is factory set to 5/5A and must be adapted to the residual current transformer used if necessary.

The UMG 96RM-E requires the mains frequency to measure the residual current. For this purpose, the measuringcircuit voltage should be applied or a ﬁxed frequency should be set.

It is not necessary to configure a connection schematic for residual current inputs I5 and I6.

Phase sequence

Check the direction of the voltage rotating ﬁeld in the measured value display of the UMG 96RM-E. A “right” rotating ﬁeld usually exists.

Check phase assignment

The assignment of the outer conductors to the current transformer is correct, if a current transformer is short circuited on the secondary, and the current indicated by the UMG 96RM-E drops to 0A in the corresponding phase.

Checking the energy measurement

Short-circuit all current transformer outputs except for one and check the displayed power outputs. The UMG 96RM-E 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 measuringcircuit current.

If the power output amount is correct but the sign of the power output is negative,

• S1(k) and S2(l) could be inverted at the current transformer

• or they supply active energy back into the network.

UMG 96RM-E

Checking the measurement

If all voltage and current inputs are correctly connected, the individual and cumulative outputs are computed and displayed correctly.

Checking the individual outputs

In case that a current transformer is assigned to the wrong outer conductor, the corresponding power output will be measured and indicated incorrectly. The assignment of the outer conductor and the UMG 96RM-E current transformer is correct, if no voltage is measured between the outer conductor and the corresponding current transformer (primary). In order to ensure that an outer conductor at the voltage measurement input is assigned to the correct current transformer, the respective current transformer can be short-circuited on the secondary side. The apparent power displayed by the UMG 96RM-E must then be approx. zero in this phase.

If the apparent power is correctly displayed but the active power is displayed with a „-“ sign, then the current transformer terminals are reversed or power is supplied to the power supply company.

Checking the total power outputs

If all voltages, currents and outputs for the respective outer conductors are correctly displayed, the total power outputs measured by the UMG 96RM must also be correct. To conﬁrm this, the total outputs measured by the UMG 96RM should be compared with the work of the active and reactive power meters located in the incoming supply.

RS485 interface

UMG 96RM-E

The MODBUS RTU protocol with CRC check on the RS485 interface can be used to access the data from the parameter and the measured value lists. Address range: 1 .. 247 Factory default setting: 1

The device is factory set to address 1 and the baud rate of 115,2 kbps.

Modbus functions (slave)

04 Read input registers 06 Preset single register 16 (10Hex) Preset multiple registers 23 (17Hex) Read/write 4X registers

The sequence of bytes is high before low byte (Motorola format).

Transmission parameters: Data bits: 8 Parity: no Stop bits (UMG 96RM): 2 External stop bits: 1 or 2

Number format: short 16 bit (-2 ﬂoat 32 bit (IEEE 754)

.. 215 -1.

C C

Broadcast (address 0) is not supported by the device.

The message length must not exceed 256 bytes.

UMG 96RM-E

Example: Reading the L1-N voltage The L1-N voltage is saved in the measured value list at address 19000. The L1-N voltage is available in the INT format. Address = 01 is approved as the UMG 96RM-E device address.

The Query Message appears as follows:

Description Hex Note Device address 01 UMG 96RM, address= 1 Function 03 „Read Holding Reg.“ Start Addr. Hi 4A 19000dez = 4A38hex Start Addr. Lo 38 Ind. Value Hi 00 2dez = 0002hex Ind. Value Lo 02 Error Check -

The Response of the UMG96 RM-E can appear as follows:

Description Hex Note Device address 01 UMG 96RM, address= 1 Function 03 Byte meter 06 Data 00 00hex = 00dez Data E6 E6hex = 230dez Error Check (CRC) -

The L1-N voltage read by address 19000 is 230V.

Digital outputs

Digital-Eingänge/Ausgänge

28 29 30 3113 14 15

24V DC

K1 K2

K3 K4

S1 S2 S3

Gruppe 1 Gruppe 2

Digital inputs/outputs

Group 1

Group 2

The UMG 96RM-E features two digital outputs in group

1. Three further outputs can be used in group 2.

The User can allocate different functions to the digital outputs

The functions can be programmed by using the conﬁguration menu of the GridVis software.

UMG 96RM-E

Fig.: Digital inputs of group 1 and digital in- / outputs of group 2

Fig.: Software GridVis, conﬁguration menu

UMG 96RM-E

Digital outputs - Status displays

The status of the switching outputs of group 1 is indicated by circular symbols in the display of the UMG 96RM-E.

Group 1

Status digital output 1 Status digital output 2

Digital output stati

The current ﬂow can be <1mA. Digital output 1: Addr. 608 = 0 Digital output 2: Addr. 609 = 0

The current ﬂow can up to 50mA. Digital output 1: Addr. 608 = 1 Digital output 2: Addr. 609 = 1

Since the indication is updated once per second, faster status changes of the outputs can not be displayed.

Impulse output

The digital outputs can be used for the output of pulses for the computation of power consumption. For this purpose, a pulse of deﬁned length is applied on the output after reaching a certain, adjustable amount of power.

You need to make various adjustments in the software GridVis (conﬁguration menu) to use a digital output as a pulse one.

• Digital output,

• Selection of source,

• Selection of measured value,

• Pulse length,

• Pulse value.

UMG 96RM-E

Fig.: Software GridVis, conﬁguration menu

UMG 96RM-E

Pulse length

The pulse length applies to both pulse outputs and is set by the software GridVis.

The typical pulse length of S0 pulse is 30ms.

Pulse interval

The pulse interval is at least as large as the selected pulse length. The pulse interval depends on the measured power, for example, and can take hours or days.

Pulse length

10ms .. 10s

Pulse interval

>10ms

Pulse interval

The pulse interval is proportional to the power output within the selected settings.

The values in the table are based on the minimum pulse length and the minimum pulse interval for the maximum number of pulses per hour.

Pulse length Pulse interval Max. pulse/h

10 ms 10 ms 180 000 pulse/h

30 ms 30 ms 60 000 pulse/h

50 ms 50 ms 36 000 pulse/h

100 ms 100 ms 18 000 pulse/h

500 ms 500 ms 3600 pulse/h

1 s 1 s 1800 pulse/h

10 s 10 s 180 pulse/h

Examples of the maximum possible number of pulses per hour.

Measured value selection

When programming with GridVis you have a selection of work values which are derived from the power output values.

Pulse value

The pulse value is used to indicate how much energy (Wh or varh) should correspond to a pulse. The pulse value is determined by the maximum connected load and the maximum number of pulses per hour.

If you check the pulse value with a positive sign, the pulses will only be emitted when the measured value has a positive sign.

If you check the pulse value with a negative sign, the pulses will only be produced when the measured value has a negative sign.

UMG 96RM-E

Pulse value =

C C

max. connected load

max. number of pulses/h

Since the active energy meter operates with a backstop, pulses will only be generated when drawing electricity.

Since the reactive energy meter operates with a backstop, pulses will only be generated with inductive load applied.

[Pulse/Wh]

UMG 96RM-E

Determine the pulse value

Set the pulse length Set the pulse length in accordance with the requirements of the connected pulse receiver. At a pulse length of 30 ms, for example, the UMG96RM generates a maximum number of 60,000 pulses (see Table "maximum number of pulses" per hour.

Determining the maximum connected load Example:

Current transformer = 150/5A Voltage L-N = max. 300 V

Power per phase = 150 A x 300 V = 45 kW Power at 3 phases = 45kW x 3 Max. connected load = 135kW

Calculating the pulse value

Pulse value =

max. connected load

max. number of pulses/h

[Pulse/Wh]

Pulse value = 135kW / 60,000 Imp/h Pulse value = 0,00225 pulse/kWh Pulse value = 2,25 pulse/Wh

External

operating voltage

UMG 96RM-E

Switch and pulse outputs

+24V=

Fig.: Connection example for the circuit as pulse output.

When using the digital outputs as pulse

outputs the auxiliary voltage (DC) must have a max. residual ripple of 5%.

230V AC

24V DC

+ -

Data logger

1.5k

Comparators and monitoring threshold values

Five comparator groups (1-5) and 10 comparators per group (A – J) can be selected in order to monitor/control the thresholds. The results of the comparators A to J can be linked with AND or OR operators

The result of the AND and OR operator can be allocated to the respective digital output.

UMG 96RM-E

Fig.: Software GridVis, conﬁguration menu

UMG 96RM-E

Service and maintenance

The device is subjected to several different safety tests before leaving the factory and is labelled with a seal. If a device is opened then the safety checks must be repeated. Warranty claims will only be accepted if the device is unopened.

Repair and calibration

Repair work and calibration can be carried out by the manufacturer only.

Front ﬁlm

The front ﬁlm can be cleaned with a soft cloth and standard household cleaning agent. Do not use acids and products containing acid for cleaning.

Disposal

The UMG 96RM can be reused or recycled as electronic scrap in accordance with the legal provisions. The permanently installed lithium battery must be disposed of separately.

Service

Should questions arise, which are not described in this manual, please contact the manufacturer directly.

We will need the following information from you to answer any questions:

- Device name (see rating plate),

- Serial number (see rating plate),

- Software release (see measured value display),

- Measuring-circuit voltage and power supply voltage,

- Precise description of the error.

Device calibration

The devices are calibrated by the manufacturer at the factory - it is not necessary to recalibrate the device providing that the environmental conditions are complied with.

Calibration intervals

It is recommended to have a new calibration carried out by the manufacturer or an accredited laboratory every 5 years approximately.

UMG 96RM-E

Firmware update

If the device is connected to a computer via Ethernet, then the device ﬁrmware can be updated via the GridVis software.

Select a suitable update ﬁle (menu Extras / Update device) and the device and the new ﬁrmware will be transferred.

Fig. GridVis ﬁrmware update assistant

Firmware may NOT be updated via the RS485 interface.

Battery

The internal clock is fed from the supply voltage. If the supply voltage fails then the clock is powered by the battery. The clock provides date and time information, for the records, min. and max. values and results, for example.

The life expectancy of the battery is at least 5 years with a storage temperature of +45°C. The typical life expectancy of the battery is 8 to 10 years.

The battery is replaced via the battery insert provided on the rear of the device. Make sure that the correct type of battery is used and correct polarity is observed when inserting the battery (positive pole faces the rear of the device; negative pole faces the front).

See chapter "Changing the battery" for more information.

UMG 96RM-E

Battery monitoring function

The device indicates the condition of the battery via the "EEE" symbol followed by "bAt" and the status number. Depending on the status number a conﬁrmation of the information by the operator may be required. It is recommended that the battery be replaced.

Fault message symbol

Battery fault status

Fault number

Status Status description EEE bAt 321

• Battery capacity is <85%

• Operator conﬁrmation required

• Message appears weekly after

conﬁrmation

• Battery should be replaced

EEE bAt 322

• Battery capacity is <75%

• Battery capacity is too low

• Can only be detected after resumption

of mains power

• Battery should be replaced

EEE bAt 330

EEE bAt 331

• Battery capacity OK

• Message can be acknowledged

• Clock is stopped and must be set

• Battery capacity is <85%

• Clock is stopped and must be set

• Operator conﬁrmation required

• Message appears weekly after

conﬁrmation

• Battery should be replaced

EEE bAt 332

• Battery capacity is <75%

• Clock is stopped and must be set

• Operator conﬁrmation required

• Message appears daily after conﬁrmation

• Battery should be replaced

Replacing the battery

If the battery capacity is shown as < 75 %, we recommend that the battery be replaced.

Procedure

1. Disconnect system and device from power supply before beginning work.

2. Discharge any electrostatic charge in your body, e. g. by touching an earthed cabinet or metal part (radiator) connected to the earth of the building.

3. Remove the battery from the battery compartment, —e.g. using long-nose pliers—. The device does

not need to be opened to do this as the battery compartment can be accessed from the outside (see ﬁgure on the right).

4. Make sure that the polarity is as shown on the insertion opening of the battery compartment and slide the replacement battery into the battery compartment. For this, use a battery compliant with the description in the technical data. The battery must fulﬁl the safety requirements of UL1642. Otherwise, there is a risk of combustion or explosion.

5. Dispose of the old battery according to the legal regulations.

6. Start up the system and the device again and check the functionality of the UMG 96-RM. Set the date and time.

UMG 96RM-E

Fig. Battery insertion on the rear

Grease or dirt on the contact surfaces form a transfer resistance that will shorten the life of the battery. Only touch the battery at the edges.

Dangerous voltage!

Danger to life or risk of serious injury. Disconnect system and device from power supply before beginning work.

Make sure that the correct type of battery is used and observe correct polarity when changing it.

UMG 96RM-E

Error/warning messages

The UMG 96RM-E can display four different error messages:

• warnings,

• clock/battery errors,

• fatal errors and

• overranges.

In the case of warnings and fatal errors, the error message is followed by the "EEE" symbol and an error number.

The three-digit error number consists of the error description and - if set from the UMG 96RM - one or more error causes.

Symbol for a error message

Fault number

Fig. Error message

Warnings

Warnings are minor errors that can be acknowledged by buttons 1 or 2. The measured values continue to be retrieved and displayed. This error is displayed after each voltage return.

Errors Error description EEE 500

The mains frequency could not be determined. Possible causes:

The voltage at L1 is too small. The mains frequency does not range between 45 and 65Hz.

Remedy:

Check the mains frequency. Select ﬁxed frequency on the device.

Fig. Warning message with number 500 (mains frequency)

Clock/battery errors

Clock or battery errors are displayed together with the "EEE" symbol followed by "bAt" and a status number. For a more detailed description please refer to "Baterry control function" and "Replacing the battery".

Major errors

UMG 96RM-E

Fig. Clock / battery error number 330 (clock does not run and has to be set.

When a major error occurs, the device must be sent to the manufacturer's service center for inspection and adjustment.

Errors Error description EEE 910

Internal causes: The UMG 96RM-E sometimes determines the cause of a major internal error with the following error code.

Errors Error description 0x01 EEPROM does not respond. 0x02 Address overrange. 0x04 Checksum error. 0x08 Error in the internal I2C bus.

Error while reading the calibration.

Example, error message 911:

The error number consists of major error 910 and internal error cause 0x01 .

In this example an error occurred while reading the calibration data from EEPROM. The device has to be returned to the manufacturer for inspection and adjustment.

UMG 96RM-E

Overranges

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. The "upwards" arrow indicates the phase (L1-L3) where the overrrange occured. The appropriate error message for current path I4 is generated as shown below. The “V” and “A” symbols indicate whether the overrange occurred in the current or in the voltage path.

A = current path V = voltage path

Indication of the phase (L1/ L2/L3) with overrange. The current phase l4 overranges occur as shown in the ﬁgure below.

Overrange limits:

I = 7 Aeff UL-N = 520 VL-N UL-L = 900 VL-L

Examples

A = current path

Fig.: Indication of the overrange in the current path of phase 2 (l2).

V = voltage path

Fig.: Indication of the overrange in voltage path L3.

Fig.: Indication of the overrange in current path l4

Parameter overrange

A detailed description of the error is coded in the parameter overrange (Addr. 600) in the following format:

0xFFFFFFFF

UMG 96RM-E

Phase 1:

Phase 2:

Phase 3:

Phase 4 (I4):

Example: Error in phase 2 in the current path:

0xF2FFFFFF

Example: Error in phase 3 in the current path UL-N:

0xFFF4FFFF

Current:

U L-N

U L-L

UMG 96RM-E

Procedure in the event of faults

Possible fault Cause Remedy

No display Exter nal fusing for the power supply voltage has

No current display Measurement voltage is not connected.

Current displayed is too large or too small.

Voltage displayed is too large or too small.

Voltage displayed is too small. Overrange. Install voltage transformers.

Phase shift ind/cap. A current path is assigned to the wrong voltage

Effective power, consumption/supply reversed.

tripped.

Measurement current is not connected. Connect measuring-circuit current.

Current measurement in the wrong phase. Check connection and correct if necessary.

Current transformer factor is incorrectly programmed.

The current peak value at the measurement input was exceeded by harmonic components.

The current at the measurement input fell short of.

Measurement in the wrong phase. Check connection and correct if necessary.

Voltage transformer incorrectly programmed. Read out and program the voltage transformer

The peak voltage value at the measurement input has been exceeded by harmonic components.

path.

At least one current transformer connection is mixed up/reversed.

A current path is assigned to the wrong voltage path.

Replace fuse.

Connect the measuring-circuit voltage.

Read out and program the current transformer transformation ratio at the current transformer.

Install current transformer with a larger transformation ratio.

Install current transformer with a suitable transformation ratio.

transformation ratio at the voltage transformer.

Caution! Ensure the measurement inputs are not overloaded.

Check connection and correct if necessary.

UMG 96RM-E

Possible fault Cause Remedy

Effective power too large or too small.

An output is not responding. The output was incorrectly programmed. Check the settings and correct if necessary.

"EEE" in the display See error messages.

"EEE bAt" in the display Battery capacity is too low See "Battery control function" and "Replacing

No connection with the device. RS485

Device still does not work despite the above measures.

The programmed current transformer transformation ratio is incorrect.

The current path is assigned to the wrong voltage path.

The programmed voltage transformer transformation ratio is incorrect.

The output was incorrectly connected. Check connection and correct if necessary.

- Device address is incorrect.

- Different bus speeds (Baud rate).

- Wrong protocol.

- Termination missing.

Ethernet

- IP address is incorrect.

- Incorrect addressing mode

Device defective. Send the device to the manufacturer for

Read out and program the current transformer transformation ratio at the current transformer

Check connection and correct if necessary.

Read out and program the voltage transformer transformation ratio at the voltage transformer.

the battery"

- Adjust the device address.

- Adjust speed (baud rate).

- Select the correct protocol.

- Close bus with termination resistor.

- Adjust IP address at the device.

- Adjust the IP address assignment mode

inspection and testing along with an accurate fault description.

UMG 96RM-E

Technical data

General information

Net weight (with attached connectors) approx. 370g

Packaging weight (including accessories) approx. 950g

Device dimensions Approx. w = 96mm, h = 96mm, d = 78mm

Battery Lithium battery CR2032, 3V (approval i.a.w. UL 1642)

Service life of background lighting 40000h (after this period of time the background lighting

Transport and storage

The following information applies to devices which are transported or stored in the original packaging.

Free fall 1m

Temperature K55 (-25°C to +70°C)

Relative humidity 0 to 90 % RH

efﬁciency will reduce by approx. 50 %)

Ambient conditions during operation

The UMG 96RM is intended for weather-protected, stationary use. Protection class II i.a.w. IEC 60536 (VDE 0106, Part 1).

Operating temperature range K55 (-10°C .. +55°C)

Relative humidity 0 to 75 % RH

Operating altitude 0 .. 2000m above sea level

Degree of pollution 2

Mounting position any

Ventilation Forced ventilation is not required.

Protection against ingress of solid foreign bodies and water

- Front side

- Rear side

Power supply voltage

Installations of overvoltage category 300V CAT II

Protection of the supply voltage (fusing) 1A, type C (approved i.a.w. UL/IEC)

Nominal range 95V - 240V (45..65Hz) or DC 100V - 300V

Operating range +-10% of nominal range

Power consumption max. 8.5VA / 3.5W

IP40 i.a.w. EN60529 IP20 i.a.w. EN60529

UMG 96RM-E

Digital outputs

2 and 3 optional digital outputs, semiconductor relays, not short-circuit proof.

Switching voltage max. 33V AC, 60V DC

Switching current max. 50mAeff AC/DC

Response time 9 periods + 10ms *

Pulse output (energy pulse) max. 50Hz

* Response time e.g. at 50Hz: 180ms + 10ms = 190 ms

Digital inputs

3 optional digital outputs, semiconductor relays, not short-circuit proof.

Maximum counter frequency 20Hz

Input signal present 18V .. 28V DC (typical 4mA)

Input signal not present 0 .. 5V DC, current less than 0.5A

UMG 96RM-E

Temperature measurement input

2 optional inputs.

Update time 1 second

Connectable sensors PT100, PT1000, KTY83, KTY84

Total burden (sensor + cable) max. 4 kOhm

Sensor type Temperature range Resistor range Uncertainty in measurement

KTY83 -55°C ... +175°C 500Ohm ... 2,6kOhm ± 1,5% rng

KTY84 -40°C ... +300°C 350Ohm ... 2,6kOhm ± 1,5% rng

PT100 -99°C ... +500°C 60Ohm ... 180Ohm ± 1,5% rng

PT1000 -99°C ... +500°C 600Ohm ... 1,8kOhm ± 1,5% rng

Cable length (digital inputs and outputs, temperature measurement input)

Up to 30m Unshielded

More than 30m Shielded

UMG 96RM-E

Serial interface

RS485 - Modbus RTU/Slave 9.6kbps, 19.2kbps, 38.4kbps, 57.6 kbps, 115.2kbps

Stripping length 7mm

Measuring voltage

Three-phase 4-conductor systems with nominal voltages up to 277V/480V (+-10%)

Three-phase 3-conductor systems, unearthed, with nominal voltages up to

Overvoltage category 300V CAT III

Measurement surge voltage 4kV

Measurement range L-N 01) .. 300Vrms

Measurement range L-L 01) .. 520Vrms

Resolution 0.01V

Crest factor 2,45 (related to the measurement range)

Impedance 4MOhm/phase

Power consumption apporx. 0,1VA

Sampling frequency 21.33kHz (50Hz); 25.6 kHz (60Hz) per measurement channel

IT 480V (+-10%)

(max. surge voltage 520Vrms )

(max. surge voltage 900Vrms )

Frequency range of the basic oscillation

- Resolution

The UMG 96RM-E can only determine values, if a voltage L-N greater than 10Veff or a voltage L-L of greater than 18Veff is present at at least one voltage

measurement input.

45Hz .. 65Hz

0.01Hz

Current measurement I1 - I4

Measurement range 0 .. 5Arms

Crest factor 1.98

Resolution 0.1mA (Display 0.01A)

Overvoltage category 300V CAT II

Measurement surge voltage 2kV

Power consumption approx. 0.2 VA (Ri=5mOhm)

Overload for 1 sec. 120A (sinusoidal)

Sampling frequency 20kHz

Residual current measurement I5 / I6

Rated current 30mArms

Rated current 40mArms

Operating current 50µA

Resolution 1µA

Crest factor 1.414 (related to 40mA)

Burden 4 Ohm

Overload for 1 sec. 5A

Sustained overload 1A

Overload for 20 ms 50A

Residual current measurement i.a.w. IEC/TR 60755 (2008-01), Type A

(maximum overload 7 arms)

Type B

UMG 96RM-E

Terminal connection capacity: power supply voltage, voltage and current measurement

Conductors to be connected. Only one conductor can be connected per terminal!

Single core, multi-core, ﬁne-stranded 0.2 - 2.5mm2, AWG 24-12

Terminal pins, core end sheath 0.25 - 2.5mm

Tightening torque 0.5 - 0.6Nm

Stripping length 7mm

Terminal connection capacity: Residual current or temperature measurement inputs and digital inputs / outputs

Rigid/ﬂexible 0.14 - 1.5mm2, AWG 28-16

Flexible with core end sheath without plastic sleeve 0.25 - 1.5mm

Flexible with core end sheath with plastic sleeve 0.25 - 0.5mm

Tightening torque 0.22 - 0.25Nm

Stripping length 7mm

Terminal connection capacity: serial interface

Single core, multi-core, ﬁne-stranded 0.08 - 2.5mm

Terminal pins, core end sheath 1.5mm

Tightening torque 0.5 - 0.6Nm

Stripping length 7mm

UMG 96RM-E

Ethernet connection

Connection RJ45

Functions Modbus gateway, embedded web server (HTTP)

Protocols TCP/IP, DHCP-Client (BootP), Modbus/TCP (Port 502),

ICMP (Ping), NTP, Modbus RTU over Ethernet (Port 8000), FTP, SNMP

UMG 96RM-E

Function parameters

Function Symbol Precision class Measurement range Display range

Total effective power P 0.55) (IEC61557-12) 0 .. 5.4 kW 0 W .. 9999 GW *

Total reactive power QA, Qv 1 (IEC61557-12) 0 .. 5.4 kvar 0 varh .. 9999 Gvar *

Total apparent power SA, Sv 0.55) (IEC61557-12) 0 .. 5.4 kVA 0 VA .. 9999 GVA *

Total active energy Ea 0.55) (IEC61557-12) 0 .. 5.4 kWh 0 Wh .. 9999 GWh *

Total reactive power ErA, ErV 1 (IEC61557-12) 0 .. 5.4 kvarh 0 varh .. 9999 Gvarh *

Total apparent energy EapA, EapV 0.55) (IEC61557-12) 0 .. 5.4 kVAh 0 VAh .. 9999 GVAh *

Frequency f 0.05 (IEC61557-12) 45 .. 65Hz 45.00Hz .. 65.00Hz

Phase current I1 - I3 I 0.5 (IEC61557-12) 0 .. 6 Arms 0 A .. 9999 kA

Measured neutral conductor current l4 IN 1 (IEC61557-12) 0 .. 6 Arms 0 A .. 9999 kA

Residual currents I5, I6 IRes 1 (IEC61557-12) 0 .. 30 mArms 0 A .. 9999 kA

Computed neutral conductor current INc 1.0 (IEC61557-12) 0.03 .. 25 A 0.03 A .. 9999 kA

Voltage U L-N 0.2 (IEC61557-12) 10 .. 300 Vrms 0 V .. 9999 kV

Voltage U L-L 0.2 (IEC61557-12) 18 .. 520 Vrms 0 V .. 9999 kV

Power factor PFA, PFV 0.5 (IEC61557-12) 0.00 .. 1.00 0.00 .. 1.00

Short-term ﬂicker, long-term ﬂicker Pst, Plt - - -

Voltage drops (L-N) Udip - - -

Voltage increases (L-N) Uswl - - -

Transient overvoltages Utr - - -

Voltage drops Unit - - -

Voltage unbalance (L-N)

Voltage harmonics Uh Kl. 1 (IEC61000-4-7) up to 2.5 kHz 0 V .. 9999 kV

THD of the voltage

Unba - - -

Unb - - -

THDu 1.0 (IEC61557-12) up to 2.5 kHz 0 % .. 999 %

THD-Ru - - -

UMG 96RM-E

Function Symbol Precision class Measurement range Display range

Current harmonics Ih Kl. 1 (IEC61000-4-7) up to 2.5 kHz 0 A .. 9999 kA

THD of the current

Mains signal voltage MSV - - -

1) Referred to amplitude.

2) Referred to phase and amplitude.

THDi 1.0 (IEC61557-12) up to 2.5 kHz 0 % .. 999 %

THD-Ri - - -

* The display returns to 0 W when the maximum total energy values are reached.

3) Referred to mains frequency.

4) Referred to root mean square value.

5) Accuracy class 0.5 with ../5 A transformer. Accuracy class 1 with ../1 A transformer.

UMG 96RM-E

Parameter and modbus address list

The following excerpt of the parameter list provides the settings that are necessary for the proper operation of the UMG 96RM-E, such as current transformer and device addresses. The values in the parameter list can be set and read.

The excerpt of the measured value list includes the measured and calculated values, output status data and recorded values to be read.

A complete overview of the parameters and measured values as well as explanations regarding the selected measured values is ﬁled in the document “Modbus Address List” on the CD or Internet.

The addresses contained in the description can be adjusted directly on the device in the range from 0 to 999. The address range above 1000 can only be processed

Table 1 – Parameter list

Address format RD/WR Unit Note Adjustment range Default

0 SHORT RD/WR - Device address 0..255 1 SHORT RD/WR kbps Baud rate (0=9.6kbps, 1=19.2kbps, 0..7 4 2=38.4kbps, 3= 57.6kbps (5..7 only for 4=115.2kbps) internal use) 2 SHORT RD/WR - Modbus Master 0, 1 0 0=Slave, 1=Master (if Ethernet is provided) 3 SHORT RD/WR - Stop bits (0=1Bit, 1=2Bits) 0, 1 0 10 FLOAT RD/WR A Current transformer I1, primary 0..1000000 12 FLOAT RD/WR A Current transformer l1, sec. 1..5 5 14 FLOAT RD/WR V Voltage transformer V1, prim. 0..1000000 16 FLOAT RD/WR V Voltage transformer V1, sec. 100, 400 400 18 FLOAT RD/WR A Current transformer I2, primary 0..1000000

100

(*1)

Values 0 and 248 through 255 are reserved and may not be used.

(*2)

The adjustable value of 0 does not produce any useful work values and must not be used.

via modbus!

(*1)

(*2)

400

(*2)

Janitza UMG 96RM-E User guide

Specifications and Main Features

Frequently Asked Questions

User Manual