Power Analyser

Item no. 33.03.207

UMG 96 RM-E
www.janitza.com Residual current monitoring (RCM)

User manual and

technical data
07/2022

Power Analyser
Doc. no. 1.040.129.0.r

Janitza electronics GmbH

Vor dem Polstück 6
D-35633 Lahnau
Support tel. +49 6441 9642-22
E-mail: info@janitza.com
www.janitza.com
UMG 96RM-E

Content
General 4
Inspection on receipt 8 Connecting the supply voltage 52
Available accessories 9 Current and voltage transformers 52
Product description 10 Programming the current transformer for I1 to I3 54
Proper use 10 Programming the voltage transformer 55
Performance characteristics – UMG 96RM-E 12 Programming parameters 56
Measuring process 13 TCP/IP configuration 57
Operating concept 13 RS485 device address (Addr. 000) 60
GridVis network analysis software 13 RS485 baud rate (Addr. 001) 60
Connection variants 14 MODBUS gateway (Addr. 002) 61
Mounting 15 User password (Addr. 050) 61
Installation 17 Parameter 62
Power supply 17 Mean value 62
Measuring voltage 18 Averaging method 62
Current measurement via I1 to I4 24 Min. and max. values 62
Residual current measurement (RCM) 33 Mains frequency (Addr. 034) 63
Temperature measurement input 37 Energy meter 64
RS485 interface 38 Reset energy meter (Addr. 507) 64
Ethernet interface 41 Harmonics 65
Digital in-/outputs 42 Measured value rotation 66
LED status bar 47 Measured value indocations 66
Operation 48 Phase sequence 68
Display mode 48 LCD contrast (Addr. 035) 68
Programming mode 48 Backlight 68
Parameters and measured values 50 Time recording 69
Configuration 52 Operating hours meter 70
Serial number (Addr. 754) 70

2
 UMG 96RM-E

“Drag indicator” 71 Service 92

Recordings 72 Device calibration 92
Putting into service 73 Calibration intervals 92
Connecting the supply voltage 73 Firmware update 93
Applying the measuring-circuit voltage 73 Battery 93
Applying the measuring-circuit current 73 Battery monitoring function 94
Phase sequence 74 Replacing the battery 95
Check phase assignment 74 Error/warning messages 96
Checking the energy measurement 74 Technical data 102
Applying the residual current 74 Function parameters 110
Failure monitoring (RCM) for I5, I6 75 Table 1 – Parameter list 112
Checking the measurement 77 Table 2 - Modbus address list 116
Checking the individual outputs 77 Number formats 119
Checking the total power outputs 77 Dimension diagrams 120
RS485 interface 78 Measured value displays overview 122
Digital outputs 80 Connection example 1 128
Impulse output 82 Connection example 2 129
Device homepage 88 Basic functions quick guide 130
Measured values 89 TCP/IP addressing quick guide 131
RCM - residual current monitoring 89
Display 89
Apps 90
Device information 90
Downloads 91
Error correction 91
Service and maintenance 92

3
UMG 96RM-E

General Comments on the operating manual

Copyright We welcome your comments. In the event that anything

in this operating manual seems unclear, please let
This operating manual is subject to the legal requirements us know and send us an EMAIL to: info@janitza.de
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.

4
 UMG 96RM-E

Meaning of the symbols

The following pictograms are used in the operating

manual at hand:

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

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

C Note!

5
UMG 96RM-E

Instructions for use

Please read the operating manual at hand as well as all Specialized personnel are persons, that based on their
other publications that must be drawn from for working respective training and experience, are qualified
with this product (in particular for the installation, to recognize risks and prevent potential dangers
operation or maintenance). that can be caused by the operation or maintenance
of the device.
Follow all safety regulations and warning information.
If you do not follow the information, it can result in bodily Additional legal and safety regulations required for
injury and/or damage to the product. the respective application are to be following during the
use of the device.
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.

6
 UMG 96RM-E

c If the device is not operated according

to the operating manual, protection
is no longer ensured and danger can come
m Disregarding the connection conditions
of the Janitza measurement devices or
their components can lead to injuries and
from the device. even death or to material damage!
• Do not use Janitza measurement devices

m
or components for critical switching,
Conductors made from single wires must control or protection applications where
be fitted with wire-end ferrules. the safety of persons and property
depends on this function.
• Do not carry out switching operations

m Only pluggable screw terminals with

the same number of poles and the
same type of construction are permitted
with the Janitza measurement devices
or components without prior inspection
by your plant manager with specialist
to be connected together. knowledge! In particular, the safety
of persons, material assets and the
applicable standards must be taken into
account!

7
UMG 96RM-E

Concerning these operating instructions Inspection on receipt

These operating instructions are a part of the product. The prerequisites of faultless, safe operation of this
• Read the operating instructions before using device are proper transport and proper storage, set-
the device. up and assembly, as well as careful operation and
• Keep the operating instructions throughout the entire maintenance. If it can be assumed that risk-free operation
service life of the product and have them readily is no longer possible, the unit must be immediately put
available for reference. out of operation and secured against being put back into
• Pass the operating instructions on to each subsequent operation again.
owner or user of the product. 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.

8
 UMG 96RM-E

Available accessories
Number Part no. Description
2 52.22.251 Mounting clips
1 10.01.855 Screw-type terminal, pluggable, 2-pole (auxiliary power)
1 10.01.849 Screw-type terminal, pluggable, 4-pole (voltage measurement)
1 10.01.871 Screw-type terminal, pluggable, 6-pole (current measurement I1-I3)
1 10.01.875 Screw-type terminal, pluggable, 2-pole (current measurement I4)
1 10.01.865 Screw-type terminal, pluggable, 10-pole (digital/analogue inputs/outputs)
1 10.01.857 Screw-type terminal, pluggable, 2-pole (RS 485)
1 10.01.859 Screw-type terminal, pluggable, 3-pole (Digital/impulse output)
1 08.01.505 Patch cable 2m, coiled, grey (connection UMG 96RM-PC/Switch)
1 52.00.008 RS485, external terminating resistor, 120 ohm
1 21.01.058 Lithium battery CR2032, 3V (approval i.a.w. UL 1642)
1 29.01.065 Silicone seal, 96 x 96
1 15.06.015 Interface converter RS485 <-> RS232
1 15.06.025 Interface converter RS485 <-> USB

9
UMG 96RM-E

Product description

Proper use
The UMG 96RM-E is intended for the measurement By continuously monitoring the residual currents
and calculation of electrical parameters such as voltage, (RCM) of an electrical system via the inputs I5 and I6,
current, power, energy, harmonics etc. in building warning pulses can be triggered if a response threshold
installations, on distribution units, circuit breakers is exceeded. Using these, the system operator can
and busbar trunking systems. be alarmed before a protective equipment reacts.
The UMG 96RM-E is suitable for integration into fixed The UMG 96RM-E does not provide protection against
and weatherproof switch panels. Conductive switch and electric shock!
panels must be earthed.
The residual current measuring is done via the current
Measured voltage and measured current must derive measurement inputs I5 and I6 via an external residual
from the same network. current transformer with a rated current of 30 mA.
The measurement results can be displayed and can
be read out and further processed via the RS485 Measurements in medium and high-voltage networks
interface. is always done via current and voltage transformers.

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 96RM-

E are connected via external ../1A or ../5A current
m The residual current measuring monitors
residual currents via external current
transformers and can trigger a warning
transformers. impule when a response threshold
is exceeded. Thus, the device is NOT
an independent protective device!

10
 UMG 96RM-E

For Janitza measurement devices and components, The UMG 96RM-E can be used in industrial and domestic
use only current transformers intended for measuring settings.
purposes (“transformers”)!
Device characteristics
“Transformers”, unlike “protection transformers”, • Supply voltage:
go into saturation at high current peaks. “Protection Option 230V: 90V - 277V (50/60Hz) or
transformers” do not have this saturation behavior and DC 90V - 250V; 300V CATIII
can therefore significantly exceed the rated values in Option 24V: 24 - 90V AC / DC; 150V CATIII
the secondary circuit. This can overload the current • Frequency range: 45 - 65Hz
measurement inputs of the measurement devices!
Device functions
Furthermore, please note that Janitza measurement • 3 voltage measurements, 300V
devices and components are not to be used for critical • 4 current measurements
switching, control or protection applications (protective (via current transformers ../5A or ../1A)
relays)! Observe the safety and warning information in • 2 residual current measurements
the “Installation” and “Product safety” chapters! (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

11
UMG 96RM-E

Performance characteristics – UMG 96RM-E

General Measurement
• Front panel integration device with dimensions • Measurement in IT, TN and TT networks
96x96 mm. • Measurement in networks with nominal voltage
• Connection via pluggable screw terminals up to L-L 480V and L-N 277V
• LCD display with backlighting • Measuring range current 0 to 5A eff.
• Operation via 2 buttons • True RMS (TRMS)
• 3 voltage and 4 current measurement inputs • Continuous sampling of the voltage and current
• Optional 2 residual current or measurement inputs
temperature measurement inputs • Continuous monitoring of residual currents with
• 2 digital outputs and 3 digital inputs/outputs failure monitoring
• RS485 interface • Temperature measurement
(Modbus RTU, slave, up to 115 kbps) • Frequency range of the fundamental oscillation
• Ethernet (web server) 45Hz .. 65Hz
• 256 MB flash memory • Measurements of the harmonic components 1st
(200 MB available for records) to 40th for ULN and I
• Clock and bettery (with battery monitoring function) • Uln, I, P (reference/del.), Q (ind./cap.)
• Working temperature range -10°C .. +55°C • Collection of well over 1000 measured values
• Fourier analyses 1st to 40th harmonic component
Uncertainty in measurement for U and I
• Active energy uncertainty in measurement class • 7 energy counters for
0.5 for ../5A transformer active energy (reference), active energy (supply),
• Active energy uncertainty in measurement class 1 active energy (without return barrier),
for ../1A transformer reactive energy (ind.), reactive energy (cap.),
• Reactive energy, class 2 reactive energy (without return barrier), apparent
energy, each for L1, L2, L3 and total

12
 UMG 96RM-E

Measuring process GridVis network analysis software

The UMG 96RM-E measures continuously The UMG 96RM-E can be programmed and read out
and calculates all effective values over a 10/12 period using the GridVis network analysis software (Download:
interval. The UMG 96RM-E measures the real effective www.janitza.com). For this a PC must be connected to
value (TRMS) of the voltage and current connected the UMG 96RM-E via a serial interface (RS485) or via
to the measurement inputs. Ethernet.

Operating concept GridVis features

You can program and call up the measured values via • Programming the UMG 96RM-E
many routes using the UMG 96RM-E. • Graphical representation of measured values

• 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.

13
UMG 96RM-E

Connection variants

Connection of a UMG 96RM-E to a PC via a interface Direct connection of a UMG 96RM-E to a PC via
converter: Ethernet.

UMG 96RM-E UMG 96RM-E

(Twisted patch
(gedrehtes cable)
Patchkabel)

UMG 96RM-E

(gedrehtes Patchkabel)

Connection of a UMG 96RM via a UMG 96RM-E Connecting a UMG 96RM-E to a PC via Ethernet.
as a gateway.

UMG 96RM-E UMG 96RM

UMG 96RM-E

UMG 96RM
Switch
(gedrehtes Patchkabel)

(gedrehtes Patchkabel)

14
 UMG 96RM-E

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:
92+0.8 x 92+0.8 mm.

Fig. mounting position

UMG 96RM-E
m Failure to meet the minimum clearances
can destroy the UMG 96RM-E at high
ambient temperatures!
(View from rear)
15
UMG 96RM-E

Mounting

The UMG 96RM-E is fixed using the mounting clips The fastening is then done when the device is pushed
found on the side of the switch panel. Before inserting in an the clamps lock in place when the screws are
the device, they should be moved out of the way tightened.
in a horizontal lever using a screwdriver, for example.
• Please tight the fixing screws until they contact the
mounting plate easily.
• Tighten with two further turns, the clamping screws
Fig. side view (are the screws tightened too much, the mounting
UMG 96RM-E with bracket will be destroyed)
mounting clips.
Loosening the clips
is done using
a screwdriver Mounting plate
and a horizontal lever
effect.
Fixing screw

Mounting Screwdriver
clips

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

16
 UMG 96RM-E

Installation

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

Before connecting the supply voltage, ensure that Circuit breaker

the voltage and frequency correspond to the details
on the ratings plate!

m • The supply voltage must be connected

through a fuse according to the technical
data.
• If installed in a building, a disconnector
or circuit-breaker must be provided for
the supply voltage. Fig. connection example of the supply voltage
• The disconnector must be installed to a UMG 96RM
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.

17
UMG 96RM-E

Measuring voltage

You can use the UMG 96RM-E to measure voltage In systems without N, the measurements which require
in TN-, TT-, and IT systems. an N are to a calculated N.
The voltage measurement in the UMG 96RM-E
is designed for the overvoltage category 300V CAT III
(rated impulse voltage 4 kV).

L1 277V/480V 50/60Hz L1 L1
L2 L2 480V 50/60Hz
240V
L3 50/60Hz L3
N N
PE

Impedance

V1 V2 V3 VN V1 V2 V3 VN

AC/DC AC/DC
4M

4M
4M

4M

4M

4M
4M

4M
DC System DC
earthing
Measuring voltage Measuring voltage
UMG 96RM Auxiliary energy UMG 96RM Auxiliary power

Fig. schematic diagram - measurements in three-phase Fig. schematic diagram - measurements in three-phase
4-wire systems. 3-wire systems.
18
 UMG 96RM-E

Network nominal voltage

Lists of networks and their nominal network voltages

in which the UMG 96RM-E can be used.

Three-phase, 4-wire systems with earthed neutral Three-phase, 3-wire systems, unearthed.
conductor.

UL-N / UL-L UL-L

66V / 115V 66V
120V / 208V 120V
127V / 220V 127V
220V / 380V 220V
230V / 400V 230V
240V / 415V 240V
260V / 440V Maximum system nominal 260V
277V / 480V voltage 277V
347V
380V
400V
Fig. table for network nominal voltages
415V
i.a.w. EN60664-1:2003 suitable for the voltage Maximum system nominal
440V
measurement inputs. voltage
480V

Fig. table for network nominal voltages

i.a.w. EN60664-1:2003 suitable for the voltage
measurement inputs.
19
UMG 96RM-E

Voltage measurement inputs

The UMG 96RM-E has three voltage measurement L1

inputs (V1, V2, V3).
L2
Surge voltage L3
The voltage measurement inputs are suitable for use
in networks where overvoltages of overvoltage category N
300V CATIII (rated impulse voltage 4kV) can occur.

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

Fig. Example connection for measuring voltage

20
 UMG 96RM-E

c
When connecting the voltage to be measured,
the following must be observed: Caution!
Voltages which exceed the per-
Isolation device mitted networkrated voltage
• A suitable circuit breaker must be fitted to disconnect must be connected via a voltage
and de-energise the UMG 96RM-E. transformer.
• The circuit breaker must be placed in the vicinity of

c
the UMG 96RM-E, be marked for the user and easily
accessible. Caution!
• The circuit breaker must be UL/IEC certified. The UMG 96RM-E is not suitable for
measuring DC voltages.
Overcurrent protection device
• An overcurrent protection device must be used for

c
line protection.
Caution!
• For line protection, we recommend an overcurrent
The voltage measurement inputs
protection device as per the technical specifications.
on the UMG 96RM-E are dangerous
• The overcurrent protection device must be suitable
if touched!
for the line cross section used.
• The overcurrent protection device must be UL/IEC
certified.
• A circuit breaker can be used as an isolating and line
protection device. The circuit breaker must be UL/IEC
certified.
• Measured voltages and measured currents must
derive from the same network.

21
UMG 96RM-E

Wiring diagrams, voltage measurement

• 3p 4w (Addr. 509= 0), factory setting • 3p 4wu (Addr. 509 = 1)

L1 L1
L2 L2
L3 L3
N N

V1 V2 V3 VN V1 V2 V3 VN

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

• 3p 4u (Addr. 509 = 2) • 3p 2u (Addr. 509 = 5)

L1 L1
L2 L2
L3 L3

V1 V2 V3 VN V1 V2 V3 VN

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

22
 UMG 96RM-E

• 1p 2w1 (Addr. 509 = 4) • 2p 4w (Addr. 509 = 3)

L1 L1
L2
L3
N N

V1 V2 V3 VN V1 V2 V3 VN

Fig. The values obtained from the voltage Fig. System with uniform phase loading.
measurement inputs V2 and V3 are taken The measured values for the voltage
to be null and not calculated. measurement input V2 are calculated.

• 1p 2w (Addr. 509 = 6) • 3p 1w (Addr. 509 = 7)

L1 L1
L2
L2 L3
L1
L2
L3
L1
L2
V1 V2 V3 VN L3
N
Fig. TN-C system with single-phase three-wire
connection. The null is taken from the voltage V1 V2 V3 VN
measurement input V3's measured value
and not calculated. Fig. 3 systems with uniform phase loading.
The not connected measured values L2/L3, L1/
L3, and L1/L2 of each system are calculated.

23
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
Load L1
of a multiplier. Power measurements are therefore not
possible using the I4 input. L2

L3

c
N
Caution!
The test leads must be designed for an Fig. Current measurement (I1-I3) via current
operating temperature of at least 80°C. transformers (connection example)

c Caution!
The current measurement inputs are
dangerous to touch.
m The attached screw terminal has to be
fixed sufficiently with two screws on the
device!

24
 UMG 96RM-E

L1

L2

L3

N
Earthing of current transformers!
If a connection is provided for the earthing
of secondary windings then this must
be connected to the earth.

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

C It is not necessary to configure a connection

schematic for the I4 measurement input.

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

25
UMG 96RM-E

Current direction

c
The current direction can be individually corrected via
Caution!
the existing serial interface or on the device for each
A residual current measurement is done
phase.
using the terminals I5 and I6 (see page 30).
If incorrectly connected, a subsequent re-connection of
There is no directional sensitivity of the
the current transformer is not required.
residual currents on the network or load
sides (not directionally sensitive).
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).
c Earthing of current transformers!
If a connection is provided for the earthing
of secondary windings then this must be
connected to the earth.

c Current transformer connections!

The secondary connection of the current
transformer must be short-circuited on this
c Open-circuit current transformers!
High voltage spikes that are dangerous
to touch can occur on current transformers
before the current feed to the UMG 96RM- that are driven with open-circuit secondary
E is disconnected! windings!
If a test switch, which automatically short- With "safe open-circuit current
circuits the secondary wires of the current transformers" the winding insulation
transformer, is available then it is sufficient is rated such that the current transformer
to set this to the "Test" position insofar can be driven open. However, even these
as the short-circuiting device has been current transformers are dangerous
checked beforehand. to touch when they are driven open-circuit.

26
 UMG 96RM-E

c Caution!
The UMG96RM is only approved for
a current measurement using the
c Disregard of the connection conditions of
the transformers to Janitza measurement
devices or their components can lead
current transformer. to injuries or even death or to material
damage!
• Do not use Janitza measurement devices
or components for critical switching,
control or protection applications
(protective relays)! It is not permitted to
use measured values or measurement
device outputs for critical applications!
• For Janitza measurement devices and their
components use only “Transformers
for measurement purposes” which are
suitable for the energy monitoring of your
system. Do not use “Transformers for
protection purposes”!
• Observe the information, regulations
and limit values in the usage information
on “Transformers for measuring
purposes”, specifically during testing
and commissioning of the Janitza
measurement device, the Janitza
component and your system.

27
UMG 96RM-E

Wiring diagrams, current measurement (I1-I3)

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

L1 L1
L2 L2
L3 L3
N N

I1 I2 I3 I1 I2 I3

Fig. Measurement in a three-phase network with Fig. System with uniform phase loading. The
non-uniform load. measured values for the current measurement
input I2 are measured.

• 3p 2i0 (Addr. 510 = 2) • 3p 3w3 (Addr. 510 = 3)

L1 L1
L2 L2
L3 L3

I1 I2 I3 I1 I2 I3

Fig. The measured values for the current Fig. Measurement in a three-phase network with
measurementinput I2 are calculated. non-uniform load.

28
 UMG 96RM-E

• 3p 3w (Addr. 510 = 4) • 2p 4w (Addr. 510 = 5)

L1 L1
L2 L2
L3 L3
N N

I1 I2 I3 I1 I2 I3

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

• 1p 2i (Addr. 510 = 6) • 1p 2w (Addr. 510 = 7)

L1 L1

L2
N

I1 I2 I3 I1 I2 I3

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

29
UMG 96RM-E

Wiring diagrams, current measurement (I1-I3) Ammeter

• 3p 1w (Addr. 510 = 8) If you wish to measure the current not just using
the UMG 96RM, rather also with a ammeter, the ammeter
L1 must be connected to the UMG 96RM-E in series.
L2
L3

L1
L2
L3
UMG
L1 I
L2 S1 S2
L3
A

I1 I2 I3

Fig. 3 systems with uniform phase loading. Einspeisung Verbraucher

The not connected measured values I2/I3, Supply Consumer
I1/I3 and I1/I2 of the respective systems are (k)S1 S2(l)
calculated. (K)P1 P2(L)

Fig. Current measurement with an additional

ammeter (example).

30
 UMG 96RM-E

Total current measurement

If the current measurement is done via two current Example: The current is measured via two current
transformers, the overall transformation ratio transformers. Both current transformers have
of the current transformers must be programmed into a transformation ratio of 1000/5A. The total measurement
the UMG 96RM-E. is done using a total current transformer 5+5/5A.

The UMG 96RM-E must then be setup as follows:

UMG Primary current: 1000A + 1000A = 2000A
I
S1 S2
Secondary current: 5A

Einspeisung 1 Einspeisung 2
Supply 1 Supply 2
P1 P2

1S1 1S2 2S1 2S2

1P1 1S1 2S1 2P1
(K) (k) (k) (K)
(L) (l) (l) (L)
1P2 1S2 2S2 2P2

Verbraucher A Verbraucher B
Consumer A Consumer B

Fig. Current measurment using a total current

transformer (example).

31
UMG 96RM-E

c
Analog inputs
Attention!
The UMG 96RM-E has 2 analog inputs which can Operating equipment connected to the
be used for one residual current measurement or one analogue inputs must exhibit reinforced
temperature measurement. The measurement is done or double insulation from mains supply
using terminals 32-34 (input 1) or 35-37 (input 2). circuits!

The analog inputs can be used for residual current

or temperature measurement in accordance with Example - temperature sensor:
the following table: A temperature sensor in close proximity to non-isolated
mains cables should measure within a 300V CAT III
network.
Remedy:
Measurement Terminal The temperature sensor must be equipped with
reinforced or double insulation for 300V CAT III. This
Temperature 32/34 (input 1) and
equates to a test voltage for the temperature sensor of
35/37 (input 2)
3000V AC (duration 1 min.).
Residual current 32/33/34 (input 1) and
35/36/37 (input 2) Example - residual current transformer:
A residual current transformer should measure on
isolated mains cables within a 300V CAT III network.
Remedy:
The insulation of the mains cables and the insulation
of the residual current transformer must fulfil the basic
insulation requirements for 300V CAT III. This equates
to a test voltage of 1500V AC (duration 1 min.) for the
insulated mains cables and a test voltage of 1500 V AC
(duration 1 min.) for the residual current transformer.

32
 UMG 96RM-E

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. *1 S1

S2
*1 S1
The connection from suitable external residual current
transformers with a rated current of 30 mA is done via S2
the residucal current transformer inputs I5 (terminals
33/34) and I6 (terminals 36/37).

Load
C Residual current transformer ratio
The GridVis software can be used to
individually program the residual current PE N L1 L2 L3
transformer inputs' transformer ratios.
Fig. Connection example residual current
measurement via current transformers
*1 Please note: Jumpers between connectors 32-33 respectively 35-36 are
only required from hardware-release 104!

33
UMG 96RM-E

Example connection for measuring residual currents of

type B and A.

230 V
AC
24 V
DC
for Example: Residual current
transformer from the series
4-20 mA DC CT-AC/DC type B+ RCM

*1
0-30 mA AC for Example: Residual current
transformer from the series
CT-AC-RCM

m The residual current measurement inputs

must be galvanically separated from each
other!

Example connection for measuring residual currents of type B and A. *1 Please note: Jumper between connector 35-36 are only
(Mains adapter with U = 24V DC, residual ripple < 5%, power: 24W) required from hardware-release 104!

34
 UMG 96RM-E

Example connection for measuring residual currents of

type B

230 V
AC
24 V
DC z.B. Differenzstromwandler
CT-AC/DC Typ B+
4-20 mA DC

230 V
AC
24 V
DC
z.B. Differenzstromwandler
CT-AC/DC Typ B+
4-20 mA DC

m
Example connection for measuring residual currents of type B. Every resi-
dual current transformer from the series CT-AC/DC type B+ RCM requires The residual current measurement inputs
its own mains adapter (with U = 24V DC, residual ripple < 5%, power: 24W). must be galvanically separated from each
The secondary sides of the mains adapters (24V DC) must be galvani- other!
cally separated from each other!
35
UMG 96RM-E

Connection example, residual current monitoring

Residual current
L1 transformer

L2
L3
PEN
N
PE Residual
current
transformer

Fig. Example L1 L2 L3 N I1 I2 I3 I4 I5 I6
UMG96RM-E with M
residual current UMG 96RM-E (RCM) 3~
monitoring via
measuring inputs i5/I6.

C I t i s n o t n e c e s s a r y t o c o n f i g u re
a connection schematic for residual
current inputs I5 and I6.

36
 UMG 96RM-E

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.

PT100

PT100

m Use a shielded cable to connect the

temperature sensor. Fig. Example, temperature measurement
with a Pt100

37
UMG 96RM-E

RS485 interface Termination resistors

In UMG 96RM-E, the RS485 interface is designed as a 2 The cable is terminated with resistors (120Ohm, 1/4W)
pin plug contact, which communicates via the Modbus at the beginning and at the end of a segment.
RTU protocol (also see Parameter programming).
The UMG 96RM-E does not contain any termination
resistors.

Correct

RS485 interface,
2-pole plug contact
A Incorrect
RS485 bus
B

Terminal strip in the cabinet.

RS485 interface,
2-pole plug contact Device with RS485 interface.
with terminating resistor
(Item no. 52.00.008)
(without terminating resistor)

120 Ω A Device with RS485 interface.

RS485 bus
B (with terminating resistor on the device)
38
 UMG 96RM-E

Screening Cable type

Twisted screened cable should be used for connections The cable used must be suitable for an environmental
via the RS485 interface. temperature of at least 80°C.

• Earth the screens of all cables that lead to the cabinet, Recommended cable type:
upon entering the cabinet. Unitronic Li2YCY(TP) 2x2x0.22 (from Lapp Kabel)
• 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 Maximum cable length
movements.
• Use suitable cable glands to feed the cables into 1200m at a baud rate of 38.4k.
the cabinet - for example armoured conduit couplings.

Cable

Strain relief

Screen braid of the cable

Earthing clamp

Low-noise earth

C For the wiring of the Modbus connection,

CAT cables are not suitable. Please use
the recommended cables.
Fig. Screening procedure at cabinet entry.
39
UMG 96RM-E

Bus structure

• All devices are connected in a bus structure (line) and • It is recommended to set the master at the end
each device has its own address within the bus (also of a segment.
see programming parameters). • The bus is inoperative if the master is replaced with
• Up to 32 stations can be interconnected in one an activated bus termination.
segment. • The bus can become unstable if the slave is replaced
• The cable is terminated with resistors (bus termination, with an activated bus termination or is dead.
120 ohm 1/4 W) at the beginning and end of a segment. • Devices that are not involved in the bus termination
• If there are more than 32 stations, repeaters (line can be exchanged without making the bus unstable.
amplifiers) must be used in order to connect • The shield has to be installed continuously and needs
the individual segments. to be broadly and well conducting connected to an
• Devices with activated bus termination must external low voltage (or potential) ground at the end.
be supplied with power.

Power supply necessary

Master
T Bus terminator on

T
T

Slave Slave Slave Repeater

T
T

Slave Slave Slave Slave

Fig. Bus structure

40
 UMG 96RM-E

Ethernet interface Meaning of the LEDs of the Ethernet interface:

The Ethernet network settings should be specified by the LED Function

network administrator and set on UMG 96RM-E accordingly. Yellow Blinks during network activity.
If the network settings are not known, the UMG 96RM-E may Green Is illuminated when there is a connection (link).
not be integrated into the network through the patch cable.

Ethernet
Connection
PC / Switch
m Attention!
Property damage due to security
vulnerabilities in programs, IT networks and
protocols.
Security vulnerabilities can result in data misuse,
faults and even cause your IT infrastructure to
shut down.
To protect your IT system, network, data
communications and measurement devices:

C
• Notify your network administrator and/or
Note!
IT manager.
The Ethernet interface is connected to
• Always keep the measurement device
GND (Ground) via a 0.1 MΩ resistor.
firmware up to date and protect the
communication to the measurement
device with an external firewall. Close any

m Caution!
The UMG 96RM-E is factory-programmed
for the dynamic allocation of the IP settings
unused ports.
• Take protective measures against viruses
and cyber attacks from the Internet,
(DHCP mode). e.g. through firewall solutions, security
Settings can be changed as described updates and antivirus programs.
in TCP/IP Configuration or, for example, • Eliminate security vulnerabilities and
via an appropriate Ethernet connection update or renew existing protection for
by means of GridVis software. your IT infrastructure.

41
UMG 96RM-E

Digital in-/outputs

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

Digital outputs, Group 1

Source Inverter
• The status indicator appears on the display at K1 or
K2 e.g.
• The status indicator on the display is not dependent Comparator group
Digital
on an inversion being activated (NC / NO) output 3

K1/K2 display

C
status indicator
The digital outputs of group 2 are not AC
compatible.
Source Inverter
e.g.
Comparator group
Digital
output 1

42
 UMG 96RM-E

Digital outputs
Group 2
These outputs are galvanically separated from
~
the analysis electronics using optocouplers. The digital
outputs have a joint reference.

• The digital outputs of group 1 can switch DC and AC

loads. The digital outputs of group 2 can not switch
AC 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.

Fig. Connection
~ digital / pulse outputs
Group 1

43
UMG 96RM-E

m
DC connection example
Caution!
Digital outputs are not short-circuit proof.
External
UMG 96RM-E Auxiliary voltage

13 24V DC

C Functions for the digital outputs can

be adjusted clearly in the GridVis
Digital Ouput 1
14
+ -

Group 1:
software (Download: www.janitza.com).
A connection between the UMG 96RM-E
and the PC via an interface is required for
Digital Ouput 2
the use of the GridVis software. 15

C
28
When using the digital outputs as pulse

LED
outputs the auxiliary voltage (DC) must DC
Digital Ouput 3
have a max. residual ripple of 5%. 29

K1
Group 2:

LED
DC

C
Digital Ouput 4
To prevent the measurement device from 30

K2
displaying a residual voltage, connect
terminal „13“ of the digital outputs of your
LED
measurement device as the functional earth
Digital Ouput 5
(FE) to the PE conductor of your system. Use 31
the color „pink“ (DIN EN 60445/VDE 0197)
for the functional earth lead. Fig. Example for two relays connected to
the digital outputs
44
 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 External
connect one signal transducer. When a signal is present, Auxiliary voltage 24V DC
the corresponding LED lights up green.
- +
An input signal is detected on a digital input if a voltage UMG 96RM-E
of at least 10V and maximum 28V is applied and Digital inputs 1-3 28
where a current of at least 1mA and maximum 6mA
flows at the same time. Wiring longer than 30m must 2k21
be screened. 29
Note the correct polarity of the supply voltage! Digital S1
Input 1
2k21

- + 2k21
30
Digital S2
Input 2
Group 2 2k21

2k21
31
Digital S3
Input 3
2k21

2k21

Fig. Connection
example for digital Fig. Example for the connection of external switch
inputs. contacts S1 and S2 to digital inputs 1 and 2.
45
UMG 96RM-E

S0 pulse input

You can connect an S0 pulse transducer per External

DIN EN62053-31 to any digital input. Auxiliary voltage 24V DC

This requires an auxiliary voltage with an output voltage - +

UMG 96RM-E
in the range 20 .. 28V DC and a resistor of 1.5kOhm.
Digital inputs 1-3 28

1.5k
2k21
29
S0 pulse
Digital transducer
Input 1
2k21

2k21
30
Digital
Input 2
2k21

2k21
31
Digital
Input 3
2k21

2k21

Fig. Example for the connection of an S0 pulse

transducer to digital input 1.
46
 UMG 96RM-E

LED status bar

The different statuses of the inputs and outputs are

Digital in-/output 1

LED status bar

displayed via the LED status bar on the rear of the device.
Digital in-/output 2
Digital inputs Digital in-/output 3
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.
Fig. LED status bar for inputs
and outputs

47
UMG 96RM-E

Operation Programming mode

The UMG 96RM-E is operated via buttons 1 and 2 with You can view and change the necessary settings
the following functions: of the UMG 96RM-E in programming mode. Press
• briefly pressing button 1 and 2: button 1 and 2 simultaneously for about 1 second
next step (+1) to switch to programming mode after entering
• pressing and holding button 1 and 2: the password. If no password is programmed, you get
previous step (-1) directly to the programming mode menu. Programming
Measured values and​​ programming data are displayed mode is marked by the text „PRG“ on the display.
on an LCD display.
Press button 2 to switch between the following menus:
There are display and programming modes. You can
avoid an unintentional change of programming data - Current transformer,
by entering a password. - Voltage transformer,
- Parameter list,
Display mode - TCP/IP device address,
- Subnet mask,
In display mode, you can scroll through the programmed - Gateway address,
measured values by pressing buttons 1 and 2. When - Dynamic TCP/IP addressing (in/out).
the device is delivered, all measured value indications
of profile 1 can be retrieved. For each measured value, If no button was pressed for about 60 seconds when you
up to three measured values are indicated. The measured are in programming mode, or button 1 and 2 are pressed
value rotation can display selected measured value simultaneously for about 1 second, the UMG 96RM-E
indications one after the other with a selectable changing will switch back to display mode.
time.

48
 UMG 96RM-E

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
Supply Button 1

49
UMG 96RM-E

Parameters and measured values Parameter indication example

All necessary parameters for the use of UMG 96RM-E, In this example, the contents
such as current transformer data and frequently required of address "000" is indicated
measured values are provided in the table. by the value "001" on
Use the UMG 96RM‑E buttons to retrieve the contents display of the UMG 96RM‑E.
of most of the addresses via serial interface. This parameter specifies
the device address (in this
You can only enter the first 3 significant digits of a value case "001") according to
on the device. Values with more digits can be entered the list of the UMG 96 RM-E
using GridVis. within a bus.
The first 3 significant digits of a value are displayed
on the device. Measured value indication
example
Selected measured values are summarized in measured
value profiles and can be indicated in display mode In this example, the
by pressing button 1 and 2. voltage L-N is indicated
by 230V on the display of
The current measured value profile, the display change the UMG 96RM‑E. The
profile, plus date and time can be read and changed via transistor outputs K1 and K2
the RS485 interface only. are active, which ensures the
current flow.

50
 UMG 96RM-E

Button functions

Display mode Programming mode

Select mode Password Select mode

simultaneously
simultaneously

Scroll

Scroll Programming
short menu +1

short Measured value ...

A(+1)
long
Programming
Measured value Measured value
menu -1
long A(-1) B ...

long short Program

Programming
Confirm selection
menu 1
For an overview of the measured
value indications, see chapter
"Overview of measured value short: Number +1
indications". (flashing) long: Number -1

short: Value x 10
(Decimal point to the
right) long: Value/10
(flashing) (Decimal point to the left)

51
UMG 96RM-E

Configuration

c
Connecting the supply voltage
Caution!
The supply voltage must be connected for If the supply voltage does not correspond
the configuration of the UMG 96RM-E . to the voltage indicated on the rating
plate, this may lead to malfunctions severe
The level of the supply voltage for the UMG 96RM‑E damage to the device.
is specified on the rating plate.

If no display appears, check whether the operating

voltage lies within the nominal voltage range. C The adjustable value 0 for the primary
current transformer does not produce any
useful work data, and should not be used.

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

C Prior to commissioning potential

production dependant contents of the
energy counter, min/max values and
records have to be deleted.

52
 UMG 96RM-E

C Current and voltage transformers

The GridVis software 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 Fig. Indication to configure the current and
current transformer inputs I5, I6 should voltage transformers in the GridVis software.
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.

53
UMG 96RM-E

Programming the current transformer for I1 to I3

Switch to the programming mode Input of the current transformer secondary current
• Press button 1 and 2 simultaneously to switch • Only 1A or 5A can be set as secondary current.
to the programming mode. If a user password was • Press button 1 to select the secondary current.
programmed, the password menu appears in display • Press button 2 to change the flashing digit.
with the indication „000“. The first digit of the user
password is flashing and can be changed by pressing Exit programming mode
button 2. Press button 2 to select the next digit while • Press both buttons simultaneously to exit
it is flashing. You can get to the programming mode 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.

54
 UMG 96RM-E

Programming the voltage transformer

Current transformer, primary
• Select in the programming mode as described.
Programming mode
The symbols for the programming mode PRG
and the current transformer mode CT appear Display of units
on the display. Current transformer,
• Press button 2 to go to the voltage transformer secondary
settings. Current transformer
• Press button 1 to confirm the selection. symbol
• 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. Voltage transformer, primary

Programming mode
Display of units
Voltage transformer,
secondary
Voltage transformer symbol

55
UMG 96RM-E

Programming parameters Fig. Password query

Use button 1 and 2 to enter
Switch to the programming mode a password (if any).
• 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
Fig. Current transformer
settings. Press button 2 repeatedly to view the first
programming mode
parameter in the list.
Use button 1 and 2
to change primary
Changing parameters
and secondary current
• Press button 1 to confirm the selection.
(see page 50).
• The last selected address and the corresponding
value is indicated.
• The first digit of the address is flashing and can Fig. Programming mode
be changed by pressing button 2. Press button 1 Voltage converter
to select and change the digit with button 2. Use button 1 and 2
to change primary
Change value and secondary voltage
• If the desired address is set, press button 1 to select (see page 51).
a number of the value and change it by pressing
button 2. Fig. Programming mode
Parameter indication
Exit programming mode Use button 1 and 2
• Press both buttons simultaneously to exit to change individual
the programming mode. parameters (see page 46).

56
 UMG 96RM-E

TCP/IP configuration
Description
Within an Ethernet, each device has a unique TCP / IP
address that can be assigned manually or from Byte identification
(e.g. byte 0) of the address
a DHCP server. The 4-byte device address (0 to 3 byte)
can be extended in the TCP / IP configuration using Address value, byte 0
the subnet mask and gateway data.
Fig. TCP/IP address, byte 1
Setting the TCP / IP device address (addr) manually A TCP / IP address consists
• Select in the programming mode as described. of 4 bytes with the following
The symbols for the programming mode PRG structure:
and the current transformer mode CT appear Byte 0 Byte 1 Byte 2 Byte 3

on the display. xxx.xxx.xxx.xxx

• Press button 2 three times to get to the TCP / IP
Example:1 9 2 . 168.003. 1 7 7
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.
Fig. TCP / IP address,
• If byte is set to 0, the TCP / IP address can be set from byte 2, value 003
1 to 3 by pressing button 1. Then the display jumps
back to Byte 0 (no digit is flashing).

Fig. TCP / IP address,

byte 3, value 177
57
UMG 96RM-E

Manual setting of the subnet mask (SUb) Dynamic IP allocation (dyn)

• When in the programming mode, press button 2 to get The dynamic allocation of the TCP / IP settings (device/
to the subnet mask settings (SUb display). gateway address and subnet mask) provides for a fully
• Use button 1 to select the desired digit and set automated integration of the device into an existing
it by pressing button 2. Repeat this step for each digit network with a DHCP server. TCP / IP settings do not
in bytes 0 to 3 in a way similar to setting the TCP / IP need to be configured manually as they are automatically
device address. assigned by the DHCP server when the device is started.
• After repeated display of byte 0 (no digit is flashing)
one can set the gateway address. Addresses are read out in the programming mode
the same way as in the manual settings.
Manual setting of the gateway address (GAt)
• When in the programming mode, press button 2 to get • Switch to the programming mode as described.
to the gateway address settings (GAt display). The symbols for the programming mode PRG
• Press buttons 1 and 2 to set the desired gateway and the current transformer mode CT appear
address in bytes 0 to 3 as described above. on the display.
• Press button 2 several times to display the dynamic IP
allocation (dYn IP).
Disable the dynamic IP allocation (dYN IP, oFF) to ensure • Press button 1 to enable the parameter "on" or "oFF"
that the manual settings of the TCP / IP device address, (parameter is flashing).
subnet mask and gateway address are not overwritten • Press button 2 to select the parameter and confirm
by a DHCP server. 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

C Changes will only take effect after you exit

the programming mode.
mask are provided and automatically
accepted by the DHCP server.

58
 UMG 96RM-E

m Caution!
Connection of the UMG96RM-E to the
Ethernet may only be carried out after
discussion with the network administrator!
Fig. Subnet mask (Sub),
byte 0, value 255

m Caution!
The UMG 96RM-E is factory-programmed
for the dynamic allocation of the IP settings
(DHCP mode).
Settings can be changed as described
Fig. Gateway (GAt), in TCP/IP Configuration or, for example,
byte 0, value 192 via an appropriate Ethernet connection
by means of GridVis software.

Fig. Enabled dynamic

allocation (dYn IP)
of the TCP / IP address

Fig. Disabled
dynamic allocation (dYn IP)
of the TCP / IP address
59
UMG 96RM-E

RS485 device address (Addr. 000) RS485 baud rate (Addr. 001)

If multiple devices are connected to each other via A common baud rate can be adjusted for the RS485
the RS485 interface, a master device can only identify interfaces. The baud rate must be uniform for all
the devices by their device address. Within a network, devices on the network. Address 003 can be used to set
each device must have its own device address. the number of stop bits (0=1bit, 1= 2bits). Data bits (8)
Addresses can be set in the range of 1 to 247. are fixed default values.

Setting Baud rate

C The adjustable range of the device address

is between 0 and 255. Values 0 and 248
through 255 are reserved and may not
0
1
9.6kbps
19.2kbps
be used. 2 38.4kbps
3 57.6kbps
4 115.2kbps (factory setting)

60
 UMG 96RM-E

MODBUS gateway (Addr. 002) User password (Addr. 050)

Set address 002 as described in the table below to use A user password can be programmed to prevent
the UMG 96RM-E Modbus Gateway function: 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
Setting Baud rate to the current transformer menu.
Modbus Gateway disabled (OFF)
0 If a user password was programmed, the password
(Factory setting)
menu appears on the display with the indication „000“.
1 Modbus Gateway enabled (ON) 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.

61
UMG 96RM-E

Parameter Averaging method

Mean value The applied exponential messaging method reaches at

least 95% of the measurement value once the reporting
Mean values ​​are averaged over an adjustable period time has run its course.
for the current, voltage and power measured values.
The mean values ​​ are indicated by a bar over the
measured value. Min. and max. values
The averaging time can be selected from a list with 9
fixed averaging times. All measured values are measured and calculated during
all 10/12 periods. Minimum and maximum values are
Averaging time, current (Addr. 040) determined for most measured values.
Averaging time, power (Addr. 041) The min. value is the smallest measured value determined
Averaging time, voltage (Addr. 042) 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.
Setting Averaging time/sec.
The minimum and maximum values are saved every
0 5 5 minutes in an EEPROM without date and time. Thus,
1 10 the minimum and maximum values of the past 5 minutes
2 15 may be lost due to an operating voltage failure.
3 30
4 60
5 300 Delete min. and max. values (Addr.506)
6 480 (factory setting)
If „001“ is set for address 506, all minimum and maximum
7 600
values ​​can be deleted simultaneously.
8 900
62
 UMG 96RM-E

Mains frequency (Addr. 034)

Setting range: 0, 45 .. 65
For automatic ascertainment of the mains frequency, an 0 = automatic frequency determination.
L1-N voltage larger than 10Veff must be applied to the The mains frequency is determined based
voltage measurement input V1. on the measurement voltage.
45..65 = fixed frequency
The sampling frequency is computed for the current The mains frequency is pre-selected as a fixed value.
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.

63
UMG 96RM-E

Energy meter Reset energy meter (Addr. 507)

The UMG 96RM-E has power meters for active energy, The real, apparent and reactive energy meters can only
reactive energy and apparent energy. be reset simultaneously.

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

Active energy reading

Total active energy

The active energy

given in this example
C Prior to commissioning potential
production dependant contents of the
energy counter, min/max values and
is 12 345 678 kWh records have to be deleted.

C If you reset the energy meter, the data will

be lost.
To avoid data loss, you should read
The active energy and save the measured values before
given in this example deletion using the GridVis software.
is 134 178 kWh

64
 UMG 96RM-E

Harmonics Total harmonic distortion THD

Harmonics are integer multiples of a fundamental THD is the ratio of the rms value of the harmonics
oscillation. to the rms value of the fundamental oscillation.
The fundamental oscillation of the voltage for
UMG 96RM-E must range between 45 and 65Hz. Total harmonic distortion of the current THDI:
The calculated harmonic voltages and currents relate
to this fundamental oscillation.
Harmonics up to 40 times the fundamental frequency are
detected.
Total harmonic distortion of the voltage THDU:
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 Phase L3

Fig. Indication of the 15th harmonics of the current Voltage

in phase L3 (example).
Value

C Harmonics are not displayed in the default

factory setting.
Fig. Indication of the total harmonic distortion THD
of the voltage of phase L3 (example).
65
UMG 96RM-E

Measured value rotation Rotation time (Addr. 039)

All 10/12 periods the measured values are calculated Setting range : 0 .. 60 seconds
and the readings are displayed on a per second basis. If 0 seconds are set, the measured value indications
There are two ways to retrieve the measurement selected will not be rotated.
readings: The rotation time set applies to all display rotation
profiles.
• The automatically changing indication of the selected
measurement readings is referred to herein Display rotation profile (Addr. 038)
as measured value rotation.
• Press button 1 and 2 to select measured value Setting range: 0 .. 3
indication from a pre-selected display profile. 0 - Display rotation profile 1, pre-programmed.
1 - Display rotation profile 2, pre-programmed.
Both methods are available simultaneously. 2 - Display rotation profile 3, pre-programmed.
The measured value rotation is enabled when at least 3 - Display rotation profile, customizable.
one measured value indication change time is over
0 seconds.
Press a button to scroll the measured value indications Measured value indocations
of selected display profile. If no button is pressed for
about 60 seconds, the device will switch to the measured Following a power resumption, the UMG 96RM-E
value rotation to display the programmed measured displays the first measurement value table in the current
value indications from the selected rotation profile display profile. To keep the selection to a manageable
in succession. 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.

66
 UMG 96RM-E

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.

C The customizable profiles (display rotation

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

C Profile setting
Both profiles (display rotation profile
and display profile) are illustrated
in the GridVis software. 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
Fig. Profile setting in the GridVis software.

67
UMG 96RM-E

Phase sequence LCD contrast (Addr. 035)

The voltage phase sequence and the phase L1 frequency The preferred view for the LCD display is from "below".
are displayed on the screen. The LCD display contrast can be adapted by the user.
The contrast can be set stepwise in the range from
The phase sequence shows the three-phase system 0 to 9.
sequence. The rotary field usually rotates to the "right".
The voltage measurement input phase sequence 0 = very bright
is checked and displayed in the UMG 96RM-E. 9 = very dark
If the string moves in a clockwise direction, this means
that the rotary field rotates to the "right"; if the string Factory default setting: 5
moves in a counter-clockwise direction, this means that
the rotary field rotates to the "left".
The field rotation can only be determined when Backlight
the measurement and operating voltage inputs are fully
connected. If a phase is missing or two equal phases are The LCD backlight allows the display to be read easily
connected, then the phase sequence is not determined even in poor light. The brightness can be controlled by
and the string is not moving. the user in stages from 0 to 9.

The UMG 96RM has two different types of backlight:

- the operation backlight

- the standby backlight

Fig. Indication of the supply Fig. Rotary field direction

frequency (50.0) can not be determined.
and the phase sequence.
68
 UMG 96RM-E

Operation backlight (addr. 036) Time recording

The operation backlight is activated by pushing the
appropriate button, or with a restart. The UMG 96RM-E records the operating hours
and the overall runtime of each comparator,
Standby backlight (addr. 747)
This backlight is activated after an adjustable period of • where the operating period is measured and displayed
time (addr. 746). If no button is pressed within this period, in hours with a resolution of 0.1 h
then the device switches to the standby backlight. • and the overall runtime of the comparators is displayed
If buttons 1 - 3 are pressed, the device switches to in seconds (when reaching 999999s is displayed
the operation backlight and the defined period of time in hours).
begins again.
The periods are marked by the digits 1 to 6 for
If the brightness settings for the two backlights are set to the measured value display enquiry:
the same value, then no change is discernible between
the operation and standby backlights. keine = operating hours meter
1 = Overall runtime, comparator 1A
2 = Overall runtime, comparator 2A
Addr. Description Setting Default 3 = Overall runtime, comparator 1B
range setting 4 = Overall runtime, comparator 2B
036 Brightness for 0 .. 9 6 5 = Overall runtime, comparator 1C
operation backlight 6 = Overall runtime, comparator 2C

746 Period of time after 60 .. 9999 900 In the measured value display, a maximum of 99999.9 h
which the backlight will Sek. Sek. (= 11.4 years) can be displayed.
switch to standby
747 Brightness for 0 .. 9 0
standby backlight

0 = min. brightness, 9 = max. brightness

69
UMG 96RM-E

Operating hours meter Serial number (Addr. 754)

The operating hours meter measures the UMG 96RM-E The serial number displayed by the UMG 96RM-E
recording and displaying time. consists of 6 digits and is a part of the serial number
The operating period is measured and displayed in hours given on the rating plate.
with a resolution of 0.1 h. The operating hours meter The serial number cannot be changed.
cannot be reset.
Serial number

Overall runtime of comparators The serial number

is on the rating plate:
The overall runtime of a comparator is the sum XX00-0000
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. Software release (Addr. 750)
The UMG 96RM-E software is continuously improved
Fig. Measured value indications and extended. The software status in the device
Operating hours meter is identified with a 3 digit number, the software release.
The UMG 96RM-E operating The software release cannot be changed by the user.
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.

70
 UMG 96RM-E

“Drag indicator”
Max. value of the mean value over n minutes

The “drag indicator” describes a maximum mean value

C Please note that even before averaging,
the values are divided between positive and
negative ones!
of a measured value over a defined period. During totalisation, first the totals for the
single phases are calculated, then divided
The period duration is set via a parameter, via the GridVis into positive and negative values!
software or via the digital input 1.
In the process, synchronisation is triggered via the internal
clock (which can be set via parameter 206 or to a full The maximum values are reset via the “Delete min./max.
hour) or optionally via digital input 1. If synchronisation values” function with the GridVis program, via Modbus or
via the digital input is selected, the capture time must on the display by setting the corresponding parameters
be set! (parameter 506: set from 0 to 1).
The thee highest values of 15 variables with time stamp
are saved. The maximum values of the variables can also
be viewed in the device display. Addr. Description Setting range Presetting
206 Period duration 300 .. 3600 sec. 900
Variables:
• Current in the single phases L1.. L3 207 Capture time 1 .. 20 sec. 10 sec.
• Effective power (consumption/export) in the 208 Configuration 0 .. 2 0
single phases L1.. L3 digital input 1
• Effective power (consumption/export), total.
• Apparent power the single phases L1...L3 0 = internal synchronisation
• Apparent power, total 1 = external synchronisation (NO)
2 = external synchronisation (NC)
506 Resetting 0, 1 0

71
UMG 96RM-E

Recordings

2 recordings are preconfigured in the default factory • cos phi(math.) L2

setting of the UMG 96RM-E. Recordings can be adjusted • cos phi(math.) L3
and extended via GridVis. • cos phi(math.) sum L1..L3
• Reactive power fundamental oscillation harmonic L1
• The min. recording time base is 1 minute. • Reactive power fundamental oscillation harmonic L2
• Maximum 4 recordings, each with 100 measured • Reactive power fundamental oscillation harmonic L3
values, ​​are possible. • Reactive power fundamental oscillation harmonic
sum L1..L3
Recording 1:
The following measured values are recorded with The mean value, minimum value and maximum value
the time base of 15 minutes: are also recorded for each measured value.
• Effective voltage L1
• Effective voltage L2 Recording 2:
• Effective voltage L3 The following measured values are recorded with
• Effective current L1 the time base of 1 hour:
• Effective current L2 • Effective energy sum L1..L3
• Effective current L3 • Inductive reactive energy sum L1..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
72
 UMG 96RM-E

Putting into service Applying the measuring-circuit current

Connecting the supply voltage The UMG 96RM-E is designed for the connection
of .. /1A and .. /5A current transformers.
• The power supply voltage level for the UMG 96RM-E Only AC currents can be measured via the current
is given on the rating plate. measurement inputs - DC currents cannot.
• After applying the power supply voltage the device Short circuit all current transformer outputs except for
switches on to display the first measured value. one. Compare the currents displayed by the UMG 96RM
• If no display appears, check whether the power supply with the applied current.
voltage is within the rated voltage range. Bearing in mind the current transformer conversion
ratio, the current displayed by the UMG 96RM-E must
Applying the measuring-circuit voltage correspond with the input current.
The UMG 96RM-E must display approx. zero amperes
• Measurement of voltages in the mains with over in the short-circuited current measurement inputs.
300VAC to earth must be connected via voltage The current transformer ratio is factory set to 5/5A
transformers. and must be adapted to the current transformer used
• After connecting the measurement-current voltages, if necessary.
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.
m Caution!
If the supply voltage does not correspond
to the voltage indicated on the rating
plate, this may lead to malfunctions severe

m
damage to the device.
Caution!
Voltages and currents that are outside
the permissible measuring range can lead
to personal injury and damage the device. m Caution!
The UMG 96RM is not suitable for
measuring DC voltages.

73
UMG 96RM-E

Phase sequence Applying the residual current

Check the direction of the voltage rotating field Connect residual current transformer only to the I5
in the measured value display of the UMG 96RM‑E. and I6 inputs with a rated current of 30mA! Both residual
A “right” rotating field usually exists. current inputs can measure AC currents, pulsing direct
currents and DC currents.
Check phase assignment
Bearing in mind the current transformer conversion ratio,
The assignment of the outer conductors to the current the residual current displayed by the UMG96RM-E must
transformer is correct, if a current transformer is short correspond with the input current.
circuited on the secondary, and the current indicated
by the UMG 96RM-E drops to 0A in the corresponding The current transformer ratio is factory set to 5/5A
phase. and must be adapted to the residual current transformer
used if necessary.
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 measuring-
C The UMG 96RM-E requires the mains
frequency to measure the residual
current. For this purpose, the measuring-
circuit current. circuit voltage should be applied or a
fixed frequency should be set.
If the power output amount is correct but the sign

C
of the power output is negative, It is not necessary to configure a
• S1(k) and S2(l) could be inverted at the current connection schematic for residual current
transformer inputs I5 and I6.
• or they supply active energy back into the network.
74
 UMG 96RM-E

Failure monitoring (RCM) for I5, I6

m
The UMG96RM-E enables continuous monitoring of the
connection to the residual current transformer on inputs The failure monitoring is only available from
I5 and I6. firmware-ver. 202 and hardware-release
104!
Activation of failure monitoring is performed by setting

m
address 21264 for the residual-current measurement
Monitoring of the connection to the residual
input I5 and 21265 for I6.
current transformer is only available in AC
mode!
If there is an interruption in the connection to the current
transformer, this state is recorded in certain registers or
indicated in the GridVis software:

Modbus addr. Value / Function

21264 (I5) Failure monitoring for I5 / I6
21265 (I6) 0 = Deactivate monitoring
1 = Activate monitoring

Modbus addr. Value / Function

11623 (I5) 0 = Connection to the residual
11624 (I6) current transformer on to I5
or I6 error-free
1 = Error in the current transformer
connection to I5 or I6

75
UMG 96RM-E

Alarm status for I5, I6

Using bit-by-bit coding inside the alarm register (addr.

Warning: The residual current has exceeded
21095, 21096), it is possible to read out different alarm
the set warning limit value
statuses:
Overcurrent: The measurement range has been
Bit: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
exceeded
00000000 00000000 Alarm: Alarm bit is set for: warning,
overcurrent or connection error to
Unused the transformer.
Failure monitoring The alarm bit must be reset or
Alarm acknowledged manually.
Overcurrent
Warning Failure Connection error to the transformer
monitoring
Example:
Interruption of the connection to the residual current
transformer. The alarm bit is also set and must be
acknowledged!
Bit: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

00110000 00000000

Unused
Failure monitoring
Alarm
Overcurrent
Warning

76
 UMG 96RM-E

Checking the measurement Checking the total power outputs

If all voltage and current inputs are correctly connected, If all voltages, currents and outputs for the respective
the individual and cumulative outputs are computed outer conductors are correctly displayed, the total
and displayed correctly. power outputs measured by the UMG 96RM must also
be correct. To confirm this, the total outputs measured
Checking the individual outputs by the UMG 96RM should be compared with the work
of the active and reactive power meters located
In case that a current transformer is assigned in the incoming supply.
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.

77
UMG 96RM-E

RS485 interface

The MODBUS RTU protocol with CRC check Number format: short 16 bit (-215 .. 215 -1.
on the RS485 interface can be used to access the data float 32 bit (IEEE 754)
from the parameter and the measured value lists.
Address range: 1 .. 247
Factory default setting: 1

C
The device is factory set to address 1 and the baud rate Broadcast (address 0) is not supported
of 115,2 kbps. by the device.

Modbus functions (slave)

03 Read Holding Registers
04 Read input registers
06 Preset single register
C The message length must not exceed
256 bytes.

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

78
 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
FLOAT format.
Address = 01 is approved as the UMG 96RM-E device
address.

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

Description Hex Note Description Hex Note

Device address 01 UMG 96RM, address= 1 Device address 01 UMG 96RM, address= 1
Function 03 „Read Holding Reg.“ Function 03
Start Addr. Hi 4A 19000dez = 4A38hex Byte meter 06
Start Addr. Lo 38 Data 00 00hex = 00dez
Ind. Value Hi 00 2dez = 0002hex Data E6 E6hex = 230dez
Ind. Value Lo 02 Error Check (CRC) -
Error Check -
The L1-N voltage read by address 19000 is 230V.

79
UMG 96RM-E

Digital outputs

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.

=
- S1 S2 S3

- -
24V = =
DC + +
K1 K2 K3 K4 K5 Fig.: Software GridVis, configuration menu

13 14 15 28 29 30 31
Group 11
Gruppe Group 2 2
Gruppe

Digital inputs/outputs
Digital-Eingänge/Ausgänge

Fig.: Digital inputs of group 1 and

digital in- / outputs of group 2
80
 UMG 96RM-E

Digital outputs - Status displays

C
The status of the switching outputs of group 1 is
indicated by circular symbols in the display of the Since the indication is updated once
UMG 96RM-E. per second, faster status changes
of the outputs can not be displayed.

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

81
UMG 96RM-E

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.

Fig.: Software GridVis, configuration menu

82
 UMG 96RM-E

Pulse length

The pulse length applies to both pulse outputs and is set The values ​​in the table are based on the minimum pulse
by the software GridVis. length and the minimum pulse interval for the maximum
number of pulses per hour.
The typical pulse length of S0 pulse is 30ms.

Pulse interval Pulse length Pulse interval Max. pulse/h

The pulse interval is at least as large as the selected 10 ms 10 ms 180 000 pulse/h
pulse length.
30 ms 30 ms 60 000 pulse/h
The pulse interval depends on the measured power, for
example, and can take hours or days. 50 ms 50 ms 36 000 pulse/h
100 ms 100 ms 18 000 pulse/h
500 ms 500 ms 3600 pulse/h
Pulse interval 1s 1s 1800 pulse/h
Pulse length
10ms .. 10s >10ms
10 s 10 s 180 pulse/h

Examples of the maximum possible number of pulses

per hour.

C Pulse interval
The pulse interval is proportional to
the power output within the selected
C Measured value selection
When programming with GridVis you
have a selection of work values ​​which are
settings. derived from the power output values.

83
UMG 96RM-E

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.

max. connected load

Pulse value = [Wh/pulse]
max. number of pulses/h

C Since the active energy meter operates with

a backstop, pulses will only be generated
when drawing electricity.

C Since the reactive energy meter operates with

a backstop, pulses will only be generated
with inductive load applied.
84
 UMG 96RM-E

Determine the pulse value External 230V AC

operating voltage
Set the pulse length
Set the pulse length in accordance with the requirements 24V DC
+ -
of the connected pulse receiver. UMG 96RM-E
At a pulse length of 30 ms, for example, the UMG96RM Switch and pulse outputs
generates a maximum number of 60,000 pulses 13
(see Table "maximum number of pulses" per hour. +24V=
Data logger
Determining the maximum connected load 14
Example:
Current transformer = 150/5A 1.5k
Voltage L-N = max. 300 V

Power per phase = 150 A x 300 V 15

= 45 kW
Power at 3 phases = 45kW x 3
Max. connected load = 135kW Fig.: Connection example for the circuit as pulse
output.

Calculating the pulse value

max. connected load

Pulse value = [Wh/pulse]
max. number of pulses/h

Pulse value = 135kW / 60,000 pulses/h

C When using the digital outputs as pulse
outputs the auxiliary voltage (DC) must
have a max. residual ripple of 5%.
Pulse value = 0,00225 kWh/pulse
Pulse value = 2,25 Wh/pulse
85
UMG 96RM-E

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.

The function “display blinking” can be additionally

assigned to every comparator group. The effect is the
change of the display backlight between maximum and
minimum brightness when the comparator output is
active.

Fig.: Software GridVis, configuration menu

86
 UMG 96RM-E

Comparator running times

Comparator running times are time counters, which

are added together at a set comparator output. i.e. Measured
if the condition of the comparator is fulfilled and the value
lead time has elapsed, the counter is increased by Limit value
the corresponding amount of time - this does not take
account of the min. switch-on time!

Limit value violation

(e.g. exceedance)
Comparator with set limit value violation

• The set limit value is compared to the measured value.

• If the limit value violation occurs for at least the 2 seconds
Lead time
duration of the lead time, the comparator result is
changed.
• The result is retained for at least the duration of 6 seconds
the min. switch-on time and for no longer than the Minimum
duration of the limit value violation. If there is no longer switch-on time
a limit value violation and the min. switch-on time has
elapsed, the result is reset.
Comparator
result

Comparator
running time

87
UMG 96RM-E

Device homepage

Your measurement device features an integrated web Please compare with TCP/IP Konfiguration (page 55)
server with its own homepage. You can use this device You can execute the following functions via
home page to access your measurement device from the homepage without prior software installation:
any end device via a standard web browser. You can • Retrieve measured values
access the homepage for your device by entering • Control your device remotely
the measuring device’s PI address in a web browser on • Access installed apps
your end device.

Note:
Please observe that a measurement duration of at least
two hours are required to display energy values.

Fig. “Home” screen with depiction of power and energy

values

88
 UMG 96RM-E

Measured values

The menu point “measured values” represents different

views of the measured value indications
• Short overview
• Detailed measured values
• RCM - residual current monitoring
• Display

Short overview
Display the most important measured values for each phase, e.g.
the current voltage values, power values and current strength.

Detailed measured values

Display comprehensive information:
• Voltage
• Current
• Power
• Harmonic oscillations
• Energy Fig. Device homepage RCM
• Periphery (digital inputs/outputs)

RCM - residual current monitoring Display

Overview of the current values and absolute threshold Device display with real display:
values of the RCM channels. For more information about it’s possible to control the device remotely
residual current monitoring, see chapter RCM difference by clicking the control buttons using the mouse.
power measurement (page 31).

89
UMG 96RM-E

Apps Information

You have the option of extending the functions on your Device information
device retrospectively by installing the “measured value Information about
monitor” app. • device name and description
Use “measured values monitor“ to display historical and • HP/Lib version
real-time measurements via easily readable, web-based • Firmware status
graphics. External servers and additional software are • Serial number
not required for this. • Current and voltage converter conditions
Additional information about the “measured values • IP address and subnet mask
monitor” are provided on our homepage.

Fig. Device homepage device information

90
 UMG 96RM-E

Downloads

Link to the download area of the Janitza homepage

with the option to load catalogues and technical
documentation.

Help

Error correction
Additional information about possible error causes
and the associated help methods.

91
UMG 96RM-E

Service and maintenance Service

The device is subjected to several different safety tests Should questions arise, which are not described
before leaving the factory and is labelled with a seal. in this manual, please contact the manufacturer directly.
If a device is opened then the safety checks must
be repeated. Warranty claims will only be accepted We will need the following information from you
if the device is unopened. to answer any questions:

Repair and calibration - Device name (see rating plate),

- Serial number (see rating plate),
Repair work and calibration can be carried out - Software release (see measured value display),
by the manufacturer only. - Measuring-circuit voltage and power supply voltage,
- Precise description of the error.
Front film
Device calibration
The front film can be cleaned with a soft cloth
and standard household cleaning agent. Do not use The devices are calibrated by the manufacturer
acids and products containing acid for cleaning. at the factory - it is not necessary to recalibrate
the device providing that the environmental conditions
Disposal are complied with.

The UMG 96RM can be reused or recycled as electronic Calibration intervals

scrap in accordance with the legal provisions.
The permanently installed lithium battery must It is recommended to have a new calibration carried out
be disposed of separately. by the manufacturer or an accredited laboratory every
5 years approximately.

92
 UMG 96RM-E

Firmware update Battery

If the device is connected to a computer via Ethernet, The internal clock is fed from the supply voltage.
then the device firmware can be updated via the GridVis If the supply voltage fails then the clock is powered
software. by the battery. The clock provides date and time
information, for the records, min. and max. values
Select a suitable update file (menu Extras / Update and results, for example.
device) and the device and the new firmware will
be transferred. 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.

Fig. GridVis firmware update assistant

C Firmware may NOT be updated via

the RS485 interface.

93
UMG 96RM-E

Battery monitoring function Status Status description

EEE • Battery capacity is <85%
The device indicates the condition of the battery via bAt • Operator confirmation required
the "EEE" symbol followed by "bAt" and the status 321 • Message appears weekly after
number. Depending on the status number a confirmation confirmation
of the information by the operator may be required. • Battery should be replaced
It is recommended that the battery be replaced.
EEE • Battery capacity is <75%
bAt • Battery capacity is too low
Fault message symbol
322 • Can only be detected after resumption
of mains power
• Battery should be replaced
Battery fault status
EEE • Battery capacity OK
bAt • Message can be acknowledged
Fault number
330 • Clock is stopped and must be set
EEE • Battery capacity is <85%
bAt • Clock is stopped and must be set
331 • Operator confirmation required
• Message appears weekly after
confirmation
• Battery should be replaced
EEE • Battery capacity is <75%
bAt • Clock is stopped and must be set
332 • Operator confirmation required
• Message appears daily after confirmation
• Battery should be replaced

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 UMG 96RM-E

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, Fig. Battery insertion on the rear
—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
m Grease or dirt on the contact surfaces
form a transfer resistance that will
shorten the life of the battery. Only touch
on the insertion opening of the battery compartment the battery at the edges.
and slide the replacement battery into the battery

c
compartment. For this, use a battery compliant with
the description in the technical data. The battery must Dangerous voltage!
fulfil the safety requirements of UL1642. Otherwise, Danger to life or risk of serious injury.
there is a risk of combustion or explosion. Disconnect system and device from power
5. Dispose of the old battery according to the legal supply before beginning work.
regulations.
6. Start up the system and the device again and check
the functionality of the UMG 96-RM. Set the date
and time.
m Make sure that the correct type of battery
is used and observe correct polarity when
changing it.

95
UMG 96RM-E

Error/warning messages Warnings

The UMG 96RM-E can display four different error Warnings are minor errors
messages: that can be acknowledged
by buttons 1 or 2.
• warnings, The measured values
• clock/battery errors, continue to be retrieved
• fatal errors and and displayed. This error
• overranges. is displayed after each
voltage return.
In the case of warnings and fatal errors, the error Fig. Warning message
message is followed by the "EEE" symbol and an error with number 500
number. (mains frequency)

The three-digit error number consists of the error

description and - if set from the UMG 96RM - one
­
or more error causes.

Errors Error description

Symbol for a error message
EEE The mains frequency could not
500 be determined.
Possible causes:
The voltage at L1 is too small.
Fault number
The mains frequency does not range
between 45 and 65Hz.
Remedy:
Fig. Error message
Check the mains frequency.
Select fixed frequency on the device.

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 UMG 96RM-E

Clock/battery errors

Clock or battery errors are displayed together with

the "EEE" symbol followed by "bAt" and a status number.
Fig. Clock / battery error
For a more detailed description please refer to "Baterry
number 330 (clock does
control function" and "Replacing the battery".
not run and has to be set.

Major errors

When a major error occurs, the device must be sent Example, error message 911:
to the manufacturer's service center for inspection
and adjustment. The error number consists of major e
­ rror 910 and internal
error­ cause 0x01­.
Errors Error description
EEE Error while reading the calibration. In this example an error
910 occurred while reading
the calibration data from
Internal causes: EEPROM. The device
The UMG 96RM-E sometimes determines the cause has to be returned
of a major internal error with the following error code. to the manufacturer
for inspection and
Errors Error description adjustment.
0x01 EEPROM does not respond.
0x02 Address overrange.
0x04 Checksum error.
0x08 Error in the internal I2C bus.
97
UMG 96RM-E

Overranges

Overranges are displayed as long as they exist Examples

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. A = current path
The "upwards" arrow indicates the phase where the
overrrange occured. The appropriate error message for
current path I4 is generated as shown below. Fig.: Indication
The “V” and “A” symbols indicate whether the overrange of the overrange
occurred in the current or in the voltage path. in the current path of phase
2 (l2).

V = voltage path

A = current path
V = voltage path
Fig.: Indication
of the overrange in voltage
Indication of the phase (L1/ path L3.
L2/L3) with overrange.
The current phase l4
overranges occur as shown
in the figure below.

Overrange limits:
Fig.: Indication
I = 7 Aeff
of the overrange in current
UL-N = 300 Vrms
path l4
98
 UMG 96RM-E

Parameter overrange

A detailed description of the error is coded

in the parameter overrange (Addr. 600) in the following
format:

0x F F F F F F F F

Phase 1: 1 1

Phase 2: 2 2

Phase 3: 4 4

Phase 4 (I4): 8 8
Current:

U L-N

Example: Error in phase 2 in the current path:

0xF2FFFFFF

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

0xFFF4FFFF

99
UMG 96RM-E

Procedure in the event of faults

Possible fault Cause Remedy

No display External fusing for the power supply voltage has Replace fuse.
tripped.
No current display Measurement voltage is not connected. Connect the measuring-circuit voltage.
Measurement current is not connected. Connect measuring-circuit current.
Current displayed is too large or too Current measurement in the wrong phase. Check connection and correct if necessary.
small.
Current transformer factor is incorrectly Read out and program the current transformer
programmed. transformation ratio at the current transformer.
The current peak value at the measurement input Install current transformer with a larger
was exceeded by harmonic components. transformation ratio.
The current at the measurement input fell Install current transformer with a suitable
short of. transformation ratio.
Voltage displayed is too large or too Measurement in the wrong phase. Check connection and correct if necessary.
small.
Voltage transformer incorrectly programmed. Read out and program the voltage transformer
transformation ratio at the voltage transformer.
Voltage displayed is too small. Overrange. Install voltage transformers.
The peak voltage value at the measurement input Caution! Ensure the measurement inputs are not
has been exceeded by harmonic components. overloaded.
Phase shift ind/cap. A current path is assigned to the wrong voltage Check connection and correct if necessary.
path.
Effective power, consumption/supply At least one current transformer connection Check connection and correct if necessary.
reversed. is mixed up/reversed.
A current path is assigned to the wrong voltage Check connection and correct if necessary.
path.

100
 UMG 96RM-E

Possible fault Cause Remedy

Effective power too large or too The programmed current transformer Read out and program the current transformer
small. transformation ratio is incorrect. transformation ratio at the current transformer
The current path is assigned to the wrong Check connection and correct if necessary.
voltage path.
The programmed voltage transformer Read out and program the voltage transformer
transformation ratio is incorrect. transformation ratio at the voltage transformer.
An output is not responding. The output was incorrectly programmed. Check the settings and correct if necessary.
The output was incorrectly connected. Check connection 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
the battery"
No connection with the device. RS485
- Device address is incorrect. - Adjust the device address.
- Different bus speeds - Adjust speed (baud rate).
(Baud rate).
- Wrong protocol. - Select the correct protocol.
- Termination missing. - Close bus with termination resistor.
Ethernet
- IP address is incorrect. - Adjust IP address at the device.
- Incorrect addressing mode - Adjust the IP address assignment mode

Device still does not work Device defective. Send the device to the manufacturer for
despite the above measures. inspection and testing along with an accurate
fault description.

101
UMG 96RM-E

Technical data
General information
Net weight (with attached connectors) approx. 370g
Packaging weight (including accessories) approx. 950g
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
efficiency will reduce by approx. 50 %)

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

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 vertical
Ventilation Forced ventilation is not required.
Protection against ingress of solid foreign bodies and water
- Front side IP40 i.a.w. EN60529
- Rear side IP20 i.a.w. EN60529
- Front with seal IP54 i.a.w. EN60529

102
 UMG 96RM-E

Power supply voltage

Option 230V Nominal range 90V - 277V (50/60Hz) or DC 90V - 250V; 300V CATIII
Power consumption max. 7.5VA / 4W
Option 24V Nominal range 24V - 90V AC / DC; 150V CATIII
Power consumption max. 7.5VA / 5W
Operating range +-10% of nominal range
Internal fuse, not replaceable Typ T1A / 250V/277V according IEC 60127
Recommended overcurrent protection device for line protection Option 230V: 6 - 16A
(certified under UL) Option 24V: 1 - 6A
(Char. B)

Recommendation for a maximum number of devices on a circuit breaker:

Option 230V : Circuit breaker B6A: max. 4 devices / Circuit breaker B16A: max. 11 devices
Option 24V : Circuit breaker B6A: max. 3 devices / Circuit breaker B16A: max. 9 devices

103
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 10/12 periods + 10ms *
Pulse output (energy pulse) max. 50Hz

* Response time e.g. at 50Hz: 200ms + 10ms = 210 ms

Digital inputs
3 optional digital inputs, 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 0.5mA

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 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

105
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, IT 480V (+-10%)
with nominal voltages up to
Overvoltage category 300V CAT III
Measurement surge voltage 4kV
Measurement range L-N 01) .. 300Vrms
(max. surge voltage 520Vrms )
Measurement range L-L 01) .. 520Vrms
(max. surge voltage 900Vrms )
Resolution 0.01V
Crest factor 2,45 (related to the measurement range)
Impedance 3MΩ/phase
Power consumption apporx. 0,1VA
Sampling frequency 21.33kHz (50Hz); 25.6 kHz (60Hz) per measurement channel
Frequency range of the basic oscillation 45Hz .. 65Hz
- Resolution 0.01Hz

1)
The UMG 96RM-E can only detect measurements when a voltage L1-N greater than 20V eff (4-wire measurement) at voltage input V1 or a voltage L1-L2 greater
than 34V eff (3-wire measurement) is applied.

106
 UMG 96RM-E

Current measurement I1 - I4
Rated current 5A
Measurement range 0 .. 6Arms
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
Measurement range 0 .. 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
Type B

107
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

Terminal connection capacity (power supply voltage)

Conductors to be connected. Only one conductor can be connected per terminal!
Single core, multi-core, fine-stranded 0.2 - 2.5mm2, AWG 26 - 12
Terminal pins, core end sheath 0.2 - 2.5mm2
Tightening torque 0.4 - 0.5Nm
Stripping length 7mm

108
 UMG 96RM-E

Terminal connection capacity (voltage and current measurement)

Conductors to be connected. Only one conductor can be connected per terminal!
Current Voltage
Single core, multi-core, fine-stranded 0.2 - 2.5mm2, AWG 26-12 0.08 - 4.0mm2, AWG 28-12
Terminal pins, core end sheath 0.2 - 2.5mm2 0.2 - 2.5mm2
Tightening torque 0.4 - 0.5Nm 0.4 - 0.5Nm
Stripping length 7mm 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 0.20 - 1.5mm2
Flexible with core end sheath with plastic sleeve 0.20 - 1.5mm2
Tightening torque 0.20 - 0.25Nm
Stripping length 7mm

Terminal connection capacity: serial interface

Single core, multi-core, fine-stranded 0.20 - 1.5mm2
Terminal pins, core end sheath 0.20 - 1.5mm2
Tightening torque 0.20 - 0.25Nm
Stripping length 7mm

109
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 .. 999 GW *
Total reactive power QA, Qv 1 (IEC61557-12) 0 .. 5.4 kvar 0 varh .. 999 Gvar *
Total apparent power SA, Sv 0.55) (IEC61557-12) 0 .. 5.4 kVA 0 VA .. 999 GVA *
Total active energy Ea 0.55) (IEC61557-12) 0 .. 5.4 kWh 0 Wh .. 999 GWh *
0.5S5) (IEC62053-22)
Total reactive power ErA, ErV 1 (IEC61557-12) 0 .. 5.4 kvarh 0 varh .. 999 Gvarh *
Total apparent energy EapA, EapV 0.55) (IEC61557-12) 0 .. 5.4 kVAh 0 VAh .. 999 GVAh *
Frequency f 0.05 (IEC61557-12) 45 .. 65Hz 45.00Hz .. 65.00Hz
Phase current I1 - I3 I 0.2 (IEC61557-12) 0 .. 6 Arms 0 A .. 999 kA
Measured neutral conductor current l4 IN 1 (IEC61557-12) 0 .. 6 Arms 0 A .. 999 kA
Residual currents I5, I6 IRes 1 (IEC61557-12) 0 .. 40 mArms 0 A .. 999 kA
Computed neutral conductor current INc 1.0 (IEC61557-12) 0.03 .. 25 A 0.03 A .. 999 kA
Voltage U L-N 0.2 (IEC61557-12) 10 .. 300 Vrms 0 V .. 999 kV
Voltage U L-L 0.2 (IEC61557-12) 18 .. 520 Vrms 0 V .. 999 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) 1) Unba - - -
Voltage unbalance (L-N) 2) Unb - - -
Voltage harmonics Uh Kl. 1 (IEC61000-4-7) up to 2.5 kHz 0 V .. 999 kV
THD of the voltage 3) THDu 1.0 (IEC61557-12) up to 2.5 kHz 0 % .. 999 %
THD of the voltage 4) THD-Ru - - -
Function Symbol Precision class Measurement range Display range

110
 UMG 96RM-E

Current harmonics Ih Kl. 1 (IEC61000-4-7) up to 2.5 kHz 0 A .. 999 kA

THD of the current 3) THDi 1.0 (IEC61557-12) up to 2.5 kHz 0 % .. 999 %
THD of the current 4) THD-Ri - - -
Mains signal voltage MSV - - -

1) Referred to amplitude. * The display returns to 0 W when the

2) Referred to phase and amplitude. maximum total energy values are reached.
3) Referred to mains frequency.
4) Referred to root mean square value.
5) Accuracy class 0.5/0.5S with ../5 A transformer.
Accuracy class 1 with ../1 A transformer.

111
UMG 96RM-E

Parameter and modbus address list

C
The following excerpt of the parameter list provides A complete overview of the parameters and
the settings that are necessary for the proper operation measured values as well as explanations
of the UMG 96RM-E, such as current transformer regarding the selected measured values
and device addresses. The values​in the parameter list is filed in the document “Modbus Address
can be set and read. List” on the CD or Internet.

The excerpt of the measured value list includes

the measured and calculated values, output status data
and recorded values to be read. C The addresses contained in the description
can be adjusted directly on the device
in the range from 0 to 800. The address
range above 1000 can only be processed
Table 1 – Parameter list via modbus!

Address format RD/WR Unit Note Adjustment range Default

(*1)
0 SHORT RD/WR - Device address 0..255 1
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 - Stoppbits 0..3 0
0 = 1 Bit, none parity
1 = 2 Bits, none parity
2 = 1 Bit, even parity
3 = 1 Bit, uneven parity
10 FLOAT RD/WR A Current transformer I1, primary 0..1000000 (*2) 5
12 FLOAT RD/WR A Current transformer l1, sec. 1..5 5
(*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.
112
 UMG 96RM-E

Address format RD/WR Unit Note Adjustment range Default

14 FLOAT RD/WR V Voltage transformer V1, prim. 0..1000000 (*2) 400

16 FLOAT RD/WR V Voltage transformer V1, sec. 100, 400 400
18 FLOAT RD/WR A Current transformer I2, primary 0..1000000 (*2) 5
20 FLOAT RD/WR A Current transformer I2, sec. 1..5 5
22 FLOAT RD/WR V Voltage transformer V2, prim. 0..1000000 400
24 FLOAT RD/WR V Voltage transformer V2, sec. 100, 400 400
26 FLOAT RD/WR A Current transformer I3, primary 0..1000000 5
28 FLOAT RD/WR A Current transformer I3, sec. 1..5 5
30 FLOAT RD/WR V Voltage transformer V3, prim. 0..1000000 400
32 FLOAT RD/WR V Voltage transformer V3, sec. 100, 400 400
34 SHORT RD/WR Hz Frequency estimation 0, 45 .. 65 0
0=Auto, 45 .. 65=Hz
35 SHORT RD/WR - Display contrast 0 .. 9 5
0 (low), 9 (high)
36 SHORT RD/WR - Background lighting 0 .. 9 6
0 (dark), 9 (bright)
37 SHORT RD/WR - Display profile 0 .. 3 0
0=preset display profile
1=preset display profile
2=preset display profile
3=customizable display profile
38 SHORT RD/WR - Display rotation profile 0 .. 3 0
0..2=preset display
rotation profile
3=customizable
display rotation profile
39 SHORT RD/WR s Rotation time 0 .. 60 0
40 SHORT RD/WR - Reporting time, I 0 .. 8* 6
41 SHORT RD/WR - Reporting time, P 0 .. 8* 6
42 SHORT RD/WR - Reporting time, U 0 .. 8* 6

* 0 = 5sec.; 1 = 10sec.; 2 = 15sec.; 3 = 30sec.; 4 = 1min.; 5 = 5min.; 6 = 8min.; 7 = 10min.; 8 = 15min.

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UMG 96RM-E

Address format RD/WR Unit Note Adjustment range Default

45 USHORT RD/WR mA Response threshold of 0 .. 200 5

current measuring I1 .. I3
50 SHORT RD/WR - Password 0 .. 999 0 (No password)

100 SHORT RD/WR - Measured value address,

Digital output 1 0..32000 874
101 SHORT RD/WR - Measured value address,
Digital output 2 0..32000 882
102 FLOAT RD/WR Wh Pulse value,
Digital output 1 -1000000..+1000000 1000
104 FLOAT RD/WR Wh Pulse value,
Digital output 2 -1000000..+1000000 1000
106 SHORT RD/WR 10ms Min. pulse length (1=10ms)
Digital output 1/2 1..1000 5 (=50ms)
206 SHORT RD/WR s “Drag indicator” period duration 300..3600 900
207 SHORT RD/WR s “Drag indicator” capture time 1..20 10
208 SHORT RD/WR - Config. Digital input 1 0 .. 2 0
0= internal synchronisation
1= external synchronisation (NO)
2= external synchronisation (NC)
500 SHORT RD/WR - Connector pin assignment, I L1 -3..0..+3 1) +1
501 SHORT RD/WR - Connector pin assignment, I L2 -3..0..+3 1) +2
502 SHORT RD/WR - Connector pin assignment, I L3 -3..0..+3 1) +3
503 SHORT RD/WR - Connector pin assignment, U L1 0..3 1) 1
504 SHORT RD/WR - Connector pin assignment, U L2 0..3 1) 2
505 SHORT RD/WR - Connector pin assignment, U L3 0..3 1) 3
506 SHORT RD/WR - Min- und Reset max. values 0..1 0
507 SHORT RD/WR - Reset energy meter 0..1 0
508 SHORT RD/WR - force EEPROM descr. 0..1 0

Note: Energy values and

​​ min-max values ​​are recorded into the EEPROM every 5 minutes.
1)
0 = No measurement of the current or voltage path.
114
2)
The setting 8 is equal setting 0.
 UMG 96RM-E

Address format RD/WR Unit Note Adjustment range Default

509 SHORT RD/WR - Voltage connection diagram 0..8 2) 0

510 SHORT RD/WR - Current connection diagram 0..8 0
511 SHORT RD/WR - Relevant voltage for
THD and FFT 0, 1 0

The THD and FFT voltages can be displayed as L-N or L-L values. 0=LN, 1=LL

512 SHORT RD/WR - Year 0..99

513 SHORT RD/WR - Month 0..12
514 SHORT RD/WR - Day 0..31
515 SHORT RD/WR - Hour 0..24
516 SHORT RD/WR - Minute 0..59
517 SHORT RD/WR - Second 0..59

600 UINT RD/WR - Overrange 0..0xFFFFFFFF

750 SHORT RD - Software release

754 SERNR RD - Serial number
756 SERNR RD - Production no.

746 SHORT RD/WR s Period of time after which the

backlight will switch to standby 60 .. 9999 900
747 SHORT RD/WR s Brightness of the standby backlight 0 .. 9 0

C Only the first 3 digits (###) of a value are displayed on the screen. Values ​​greater than
1000 are marked with "k". Example: 003k = 3000

115
UMG 96RM-E

Table 2 - Modbus address list

(frequently needed measured values)

C The addresses contained in the description

can be adjusted directly on the device in
the range from 0 to 800.
C A complete overview of the parameters and
measured values as well as explanations
regarding the selected measured values
The address range 800-999 is available for is filed in the document “Modbus Address
programming comparators on the device. List” on the CD or Internet.
The addresses above 1000 can only be
processed via modbus!

Modbus address
Address via Display Format RD/WR Unit Note
19000 808 float RD V Voltage L1-N
19002 810 float RD V Voltage L2-N
19004 812 float RD V Voltage L3-N
19006 814 float RD V Voltage L1-L2
19008 816 float RD V Voltage L2-L3
19010 818 float RD V Voltage L3-L1
19012 860 float RD A Current, L1
19014 862 float RD A Current, L2
19016 864 float RD A Current, L3
19018 866 float RD A Vector sum; IN=I1+I2+I3
19020 868 float RD W Real power L1
19022 870 float RD W Real power L2
19024 872 float RD W Real power L3
19026 874 float RD W Sum; Psum3=P1+P2+P3
19028 884 float RD VA Apparent power S L1
19030 886 float RD VA Apparent power S L2

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 UMG 96RM-E

Modbus Address
address via Display Format RD/WR Unit Note
19032 888 float RD VA Apparent power S L3
19034 890 float RD VA Sum; Ssum3=S1+S2+S3
19036 876 float RD var Fund. reactive power (mains frequ.) Q L1
19038 878 float RD var Fund. reactive power (mains frequ.) Q L2
19040 880 float RD var Fund. reactive power (mains frequ.) Q L3
19042 882 float RD var Sum; Qsum3=Q1+Q2+Q3
19044 820 float RD - Fund.power factor, CosPhi; U L1-N IL1
19046 822 float RD - Fund.power factor, CosPhi; U L2-N IL2
19048 824 float RD - Fund.power factor, CosPhi; U L3-N IL3
19050 800 float RD Hz Measured frequency
19052 - float RD - Rotation field; 1=right, 0=none, -1=left
19054 - float RD Wh Real energy L1
19056 - float RD Wh Real energy L2
19058 - float RD Wh Real energy L3
19060 - float RD Wh Real energy L1..L3
19062 - float RD Wh Real energy L1, consumed
19064 - float RD Wh Real energy L2, consumed
19066 - float RD Wh Real energy L3, consumed
19068 - float RD Wh Real energy L1..L3, consumed, rate 1
19070 - float RD Wh Real energy L1, delivered
19072 - float RD Wh Real energy L2, delivered
19074 - float RD Wh Real energy L3, delivered
19076 - float RD Wh Real energy L1..L3, delivered
19078 - float RD VAh Apparent energy L1
19080 - float RD VAh Apparent energy L2
19082 - float RD VAh Apparent energy L3
19084 - float RD VAh Apparent energy L1..L3
19086 - float RD varh Reactive energy L1
19088 - float RD varh Reactive energy L2
19090 - float RD varh Reactive energy L3
19092 - float RD varh Reactive energy L1..L3

117
UMG 96RM-E

Modbus Address
address via Display Format RD/WR Unit Note
19094 - float RD varh Reactive energy, inductive, L1
19096 - float RD varh Reactive energy, inductive, L2
19098 - float RD varh Reactive energy, inductive, L3
19100 - float RD varh Reactive energy L1..L3, ind.
19102 - float RD varh Reactive energy, capacitive, L1
19104 - float RD varh Reactive energy, capacitive, L2
19106 - float RD varh Reactive energy, capacitive, L3
19108 - float RD varh Reactive energy L1..L3, cap.
19110 836 float RD % Harmonic, THD, U L1-N
19112 838 float RD % Harmonic, THD, U L2-N
19114 840 float RD % Harmonic, THD, U L3-N
19116 908 float RD % Harmonic, THD, I L1
19118 910 float RD % Harmonic, THD, I L2
19120 912 float RD % Harmonic, THD, I L3

Modbus Address
address via display Format RD/WR Unit Note Adjustment range Default
20006 - float RD/WR A TDD I4, full-load current 0...1000000 150
20008 - float RD/WR A current transformer I4, primary 0...1000000 5
20010 - float RD/WR A current transformer I4, secondary 1..5 5
20012 - float RD/WR A current transformer I5, primary 0..1000000 5
20014 - float RD/WR A current transformer I5, secondary 0,001...5 5
20016 - float RD/WR A current transformer I6, primary 0...1000000 5
20018 - float RD/WR A current transformer I6, secondary 0,001...5 5

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 UMG 96RM-E

Number formats
NOTE
Type Size Minimum Maximum
Note on saving measured values and configuration
short 16 bit -215 215 -1
data:
ushort 16 bit 0 216 -1 Since the following measured values are saved in a
int 32 bit -231 231 -1 non-volatile memory every 5 minutes, the recording
may be interrupted for a maximum of 5 minutes in
uint 32 bit 0 232 -1
case the operating voltage fails:
float 32 bit IEEE 754 IEEE 754 · Comparator timer
· S0 counter statuses
· Min. / Max. / mean values
(without the date and time)
· Energy values
Configuration data is saved immediately.
A detailed Modbus address and parameter list can be
found at www.janitza.com

119
UMG 96RM-E

Dimension diagrams

All dimensions provided in mm

Rear view View from below

□ 91,5

110,5

120
 UMG 96RM-E

Side view Cut-out size

ca. 90
92+0,8
72 (depth without connector)
96

91,5

104

92+0,8
6 57
78

121
UMG 96RM-E

Measured value displays overview

A01 B01 C01 D01
Measured values Mean values Maximum values Minimum values
L1-N voltage L1-N voltage L1-N voltage L1-N voltage
L2-N voltage L2-N voltage L2-N voltage L2-N voltage
L3-N voltage L3-N voltage L3-N voltage L3-N voltage

A02 B02 C02 D02

Measured values Mean values Maximum values Minimum values
L1-L2 voltage L1-L2 voltage L1-L2 voltage L1-L2 voltage
L2-L3 voltage L2-L3 voltage L2-L3 voltage L2-L3 voltage
L3-L1 voltage L3-L1 voltage L3-L1 voltage L3-L1 voltage

A03 B03 C03 D03

Measured values Mean values Maximum values Max. values (mean value)
L1 current L1 current L1 current L1 current
L2 current L2 current L2 current L2 current
L3 current L3 current L3 current L3 current

A04 B04 C04 D04

Measured value Mean value Maximum value Maximum values

Sum Sum Measured value sum Sum mean value
Current in the N line Current in the N line Current in the N line Current in the N line

A05 B05 C05

Measured values Mean value Maximum values
L1 active power L1 active power L1 active power
L2 active power L2 active power L2 active power
L3 active power L3 active power L3 active power

A06 B06 C06 D06

Maximum value
Measured value Mean value Maximum value
Sum
Sum Sum Sum
Active power mean
Active power Active power Active power
value

A07 B07 C07

Measured values Mean values Maximum values
L1 apparent power L1 apparent power L1 apparent power
L2 apparent power L2 apparent power L2 apparent power
L3 apparent power L3 apparent power L3 apparent power

122
 UMG 96RM-E

A08 B08 C08

Measured value Mean value Maximum value

Sum Sum Sum
Apparent power Apparent power Apparent power

A09 B09 C09

Measured values Mean values Maximum values (ind)
L1 reactive power L1 reactive power L1 reactive power
L2 reactive power L2 reactive power L2 reactive power
L3 reactive power L3 reactive power L3 reactive power

A10 B10 C10

Measured value Mean value Maximum value (ind)

Sum of reactive power Sum of reactive power Sum of reactive power

A11 B11 C11

Measured value Measured value Measured value

Distortion factor (THD) Distortion factor (THD) Distortion factor (THD)
U L1 U L2 U L3

A12 B12 C12

Measured value Measured value Measured value

Distortion factor (THD) Distortion factor (THD) Distortion factor (THD)
I L1 I L2 I L3

A13 B13 C13

Maximum value Maximum value Maximum value

Distortion factor (THD) Distortion factor (THD) Distortion factor (THD)
U L1 U L2 U L3

A14 B14 C14

Maximum value Maximum value Maximum value

Distortion factor (THD) Distortion factor (THD) Distortion factor (THD)
I L1 I L2 I L3

123
UMG 96RM-E

A15
Measured value
L1 cos(phi)
L2 cos(phi)
L3 cos(phi)

A16 B16

Measured value Mean value

Sum of cos(phi) Sum of cos(phi)

A17

Measured value
Frequency L1
Rotation field display

A18 B18 C18 D18 E18 F18 G18

Measured value Measured value Measured value Measured value Measured value Measured value Measured value
Total active energy Total active energy Total active energy Sum Active energy L1 Active energy L2 Active energy L3
(without a backstop) (import) (export) Apparent energy Import (tariff 1) Import (tariff 1) Import (tariff 1)

A19 B19 C19 D19 E19 F19

Measured value Measured value
Measured value Measured value Measured value
Measured value (ind) Sum Sum
Reactive energy L1 Reactive energy L2 Reactive energy L3
Reactive energy Reactive energy Reactive energy
ind. (tariff 1) ind. (tariff 1) ind. (tariff 1)
cap. ind.

A20 B20 G20

Operating hours Comparator 1A* Comparator 2C*

meter 1 Total running time ... Total running time

A21 B21 H21

Measured value Measured value Measured value

1st. harmonic 3rd. harmonic 15th. harmonic
U L1 U L1 ... U L1

Marked menus are not displayed in the factory presetting. * Only the first 6 comparators are shown.

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 UMG 96RM-E

A22 B22 H22

Measured value Measured value Measured value

1st. harmonic 3rd. harmonic 15th. harmonic
U L2 U L2 ... U L2

A23 B23 H23

Measured value Measured value Measured value

1st. harmonic 3rd. harmonic 15th. harmonic
U L3 U L3 ... U L3

A24 B24 H24

Measured value Measured value Measured value

1st. harmonic 3rd. harmonic 15th. harmonic
I L1 I L1 ... I L1

A25 B25 H25

Measured value Measured value Measured value

1st. harmonic 3rd. harmonic 15th. harmonic
I L2 I L2 ... I L2

A26 B26 H26

Measured value Measured value Measured value

1st. harmonic 3rd. harmonic 15th. harmonic
I L3 I L3 ... I L3

A27 B27 H27

Maximum value Maximum value Maximum value

1st. harmonic 3rd. harmonic 15th. harmonic
U L1 U L1 ... U L1

A28 B28 H28

Maximum value Maximum value Maximum value

1st. harmonic 3rd. harmonic 15th. harmonic
U L2 U L2 ... U L2

Marked menus are not displayed in the factory presetting.

125
UMG 96RM-E

A29 B29 H29

Maximum value Maximum value Maximum value

1st. harmonic 3rd. harmonic 15th. harmonic
U L3 U L3 ... U L3

A30 B30 H30

Maximum value Maximum value Maximum value

1st. harmonic 3rd. harmonic 15th. harmonic
I L1 I L1 ... I L1

A31 B31 H31

Maximum value Maximum value Maximum value

1st. harmonic 3rd. harmonic 15th. harmonic
I L2 I L2 ... I L2

A32 B32 H32

Maximum value Maximum value Maximum value

1st. harmonic 3rd. harmonic 15th. harmonic
I L3 I L3 ... I L3

A33 B33 C33 D33

Max. values
Measured values Mean values Maximum values
(mean value)
L4 current L4 current L4 current
L4 current

A34 B34 C34 D34

Max. values
Measured values Mean values Maximum values
(mean value)
L5 current L5 current L5 current
L5 current
Even and odd harmonics
A35 B35 C35 D35 up to the 40th order can
Max. values be called up via the GridVis
Measured values Mean values Maximum values
L6 current L6 current L6 current
(mean value) software and can be viewed
L6 current
in the software.
Marked menus are not displayed in the factory presetting.

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 UMG 96RM-E

FCC Compliance Statement

This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equip-
ment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:

—Reorient or relocate the receiving antenna.

—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV
technician for help.

Code of Federal Regulations, Title 47, Part 15, Subpart B -

Unintentional Radiators

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UMG 96RM-E

Connection example 1
(with residual current measurement IPE / IRES)

=
- S1 S2 S3
IDIFF IPE
- - B
24V = =
DC + + A
K1 K2 K3 K4 K5 0-30 mA 0-30 mA
4) 4)

13 14 15 28 29 30 31 32 33 34 35 36 37 16 17
Group 11
Gruppe Group 2
Gruppe 2 I5 I6 B A
RS485
Digital inputs/outputs
Digital-Eingänge/Ausgänge Analog inputs
Analog-Eingänge

10/100Base-T
Ethernet
UMG 96RM-E (RCM) PC

RJ45
Power supply
Versorgungs- Measuring voltage Current measurement
Spannungsmessung Strommessung
voltage
spannung
N/- L/+ V1 V2 V3 VN I4
S2 S1 S2 S1 S2 S1 S2 S1
1 2 3 4 5 6 19 18

1) 2) 2) 2) 3) 3) 3) 3) 1)
UL / IEC approved overcurrent
protection system (6A Char. B)
2)
UL / IEC approved overcurrent
S2 S1
protection system
L1 (10A Class CC / Char. C)
Verbraucher
Consumer

S2 S1
L2 3)
Jumpers (external)
S2 S1
L3
4)
Jumpers between connectors
S2 S1 32-33 and 35-36 are only required
N
230V/400V 50Hz from hardware-release 104!
128
 UMG 96RM-E

Connection example 2
(with temperature and residual current measurement)

=
- S1 S2 S3
IDIFF
- - PT100 B
24V = =
DC + + A
K1 K2 K3 K4 K5 0-30 mA
4)

13 14 15 28 29 30 31 32 33 34 35 36 37 16 17
Group 11
Gruppe Group 22
Gruppe I5 I6 B A

Digital inputs/outputs Analog inputs

RS485
Digital-Eingänge/Ausgänge Analog-Eingänge

10/100Base-T
Ethernet
UMG 96RM-E (RCM) PC

RJ45
Power supply
Versorgungs- Measuring voltage Current measurement
voltage
Spannungsmessung Strommessung
spannung
N/- L/+ V1 V2 V3 VN I4
S2 S1 S2 S1 S2 S1 S2 S1
1 2 3 4 5 6 19 18

1) 2) 2) 2) 3) 3) 3) 3) 1)
UL / IEC approved overcurrent
protection system (6A Char. B)
2)
UL / IEC approved overcurrent
S2 S1
protection system
L1 (10A Class CC / Char. C)
Verbraucher
Consumer

S2 S1
L2 3)
Jumpers (external)
S2 S1
L3
4)
Jumpers between connectors
S2 S1 35-36 are only required from
N
230V/400V 50Hz hardware-release 104!
129
UMG 96RM-E

Basic functions quick guide Adjusting current transformer,

primary current

Adjusting the current transformer Display

Switch to the programming mode: Programming mode
• Press button 1 and 2 simultaneously for around Adjusting current
1 second to switch to the programming mode. transformer, secondary
current
The symbols for the programming mode PRG
and the current transformer mode CT appear Current transformer symbol
(in the programming mode
on the display. only)
• Press button 1 to confirm the selection.
• The first digit of the input field for the primary current View measured values
is flashing.
Adjusting the primary current Switch to the display mode:
• Press button 2 to change the flashing digit. • If you are still in the programming mode (PRG and
• Press button 1 to select the next digit to be changed. CT icons displayed on the screen), press button 1
The selected digit to be changed is flashing. and 2 simultaneously for around 1 second to switch
If the entire number is flashing, press button 2 to move to the display mode.
the decimal point. • A measured value display (e.g. voltage) appears
Adjusting the secondary current
• Only 1A or 5A can be set as secondary current. Button controls
• Press button 1 to select the secondary current. • Press button 2 to change
• Press button 2 to change the flashing digit. the measured value display
Exit programming mode for current, voltage, power,
• Press button 1 and 2 simultaneously for around 1 etc.
second to switch to the display mode. • Press button 1 to change
the mean values, max.
values etc. associated with
the measured value.

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 UMG 96RM-E

TCP/IP addressing quick guide

Description
Manual TCP/IP settings
Byte identification
Switch to the programming mode:
(e.g. byte 0) of the address
• Press button 1 and 2 simultaneously for around
1 second to switch to the programming mode. Address data, byte 0
The symbols for the programming mode PRG
and the current transformer mode CT appear Fig. TCP/IP address, byte 1
on the display. A TCP / IP address consists of 4
Adjust the TCP/IP address (Adr.) bytes with the following structure:
• Press button 2 to select "Adr"
• Press button 1 to enable the first digit (byte 0) Byte 0 Byte 1 Byte 2 Byte 3
of the address (digit is flashing). Press button 2 to set
the digit. xxx.xxx.xxx.xxx
• Press button 1 to select the next digit (flashing) and set
the desired digit by pressing button 2.
• If byte is set to 0, the address can be set from 1 to 3
by pressing button 1. Then the display jumps back Enable dynamic IP allocation (dyn)
to Byte 0 (no digit is flashing). Device/gateway address and subnet mask are assigned
Subnet mask (SUb) by a DHCP server and enable automatic integration
• Press button 2 to select the subnet mask and set of the device into the existing mains.
it in a manner similar to adjusting the address • When in programming mode, press button 2
by pressing button 1 and 2. repeatedly to display the tab labelled "dYn IP".
Adjusting the gateway address (GAt) • Press button 1 to enable the parameter "on"
• Use button 2 and 1 to set the gateway in a manner or "oFF" (parameter is flashing). Press button 2 to set
similar to adjusting the address. the desired status and press button 1 to confirm
Exit programming mode the selection.
• Press button 1 and 2 simultaneously to exit the mode • Exit programming mode.
or wait 60 seconds.
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UMG 96RM-E

132