janitza UMG 508 Operating Manual

Document no. 1.042.015.5n from firmware rel. 2.0 / hardware rel. 20

Power Analyser

UMG 508

Operating manual and
technical data

Art. no. 33.03.121 (UL)

Janitza electronics GmbH
Vor dem Polstück 1
D-35633 Lahnau
Support Tel. [phone]
Fax [phone]
e-mail: [e-mail]
Internet: http://www.janitza.com

www.janitza.com

2

UMG 508

General 3
Goods-in Check 6
Description 8

Intended Use 8
Features 9
Measurement Method 10
GridVis network analysis software 11

Assembly 12

Place of Installation 12
Installation extradata 12
Front Board Cutout 12
Ethernet Connection 13
Fixing 13

Installation 14

Supply Voltage 14
Voltage Measurement 16
Current measurement 24
RS485 28
Ethernet 32
Digital outputs 34
Digital Inputs 36

Operation 38

Measurement value displays 39
"Home“ measurement value display 40
Select measurement value display 41
Call up additional information 42
Delete min/max values individually 43
List of transients 44
List of events 45

Configuration 46

Language 47
Communication 48
Measurement 50
Transients 56
Events 58
Display 60
System settings 62
Password 63
Delete minimum and maximum values 64
Delete power meters 65
Extensions 68

Initialization 71

Applying the supply voltage 71
Apply measurement voltage 72
Rotary field direction 72
Applying measurement current 73
Checking the power measurement 75
Checking communication 75

Service and Maintenance 81
Technical data 85

Dimensioned drawings 94
Measurement value displays overview 97
Connection example 100

3

UMG 508

General

Copyright

This handbook is subject to the legal regulati­ons of copyright law protection and may not be
mechanically or electronically photocopied or
reprinted in full in or parts and, without the legal,
written permission of

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

may not be reproduced or further publication in
any other way.

Protected trademarks

All trademarks and the resulting rights belong to
the respective owners of the rights.

Disclaimer

Janitza electronics GmbH does not accept any
liability for errors or deficits in this handbook
and is not obliged to keep the contents of this
handbook updated.

Comments on the handbook

We welcome your comments. If anything in this
handbook seems unclear, please let us know
and send us an EMAIL to:

[e-mail]

4

UMG 508

Meaning of Symbols

The following pictograms are used in this hand­book:

Gefährliche Spannung!

Danger of death or risk of major injury.
Disconnect the system and device be­fore beginning any work.

Protective ground connection.

Caution!

Please pay attention to the documenta­tion. This symbol should warn against
possible dangers that can occur during
assembly, initialization and use.

m

c

Inductive.
The voltage lags the current

Capacitive.
The voltage lags the current.

C

Note.

5

UMG 508

Application Information

Please read this operating manual and all other
publications that have to be consulted to work
with this product (particularly for installation,
operation or maintenance).

Please pay attention to all safety regulations and
warning information. If you fail to follow the in­formation, it can result in personal damage and/
or damages to the product.

Any unauthorized change or use of this device
beyond the specified mechanical, electrical or
other operating limits can cause personal da­mage and/or damage to the product.

Any such unauthorized change represents "mi­suse" and/or "negligence" in the sense of gua­rantee for the product and therefore makes the
guarantee covering possible consequential da­mages void.

This device is to be exclusively operated and
maintained by a specialist.

Specialists are persons who, due to their rele­vant training and experience, are capable of re­cognizing risks and avoiding possible hazards
that can be caused when operating or servicing
the device.

When using the device, the necessary legal and
safety regulations should be considered additio­nally for the respective application case.

Caution!
If the device is not operated according
to the operating manual, protection is
no longer ensured and the device may
cause dangers.

c

Cables with single wires must be provi­ded with ferrules.

Only screw plugs with the same pole
number and the same type of const­ruction can be plugged together.

m

m

6

UMG 508

The installation and initialization inst­ructions also describe options that do
not belong to the scope of supply.

Goods-in Check

Correct and safe operation of this device is
subject to appropriate transportation, correct
warehousing, installation and assembly as well
as careful operation and maintenance. If it can
be assumed that safe operation without any
danger is no longer possible, the device must
be taken out of operation immediately and se­cured against unintentional initialization.
Unpacking and packing must take place, with
the usual care without applying force and using
suitable tools. The devices must be checked for
perfect condition with visual tests.
It should be assumed that risk-free operation is
not possible if, for example:

• There is visible damage,

• it no longer works due despite the main sup­ply being intact,

• has been subject to unfavorable conditions
(e.g. storage outside of the authorized climate
limits without adaptation to the room climate,
thawing etc.) over a longer period of time or
transport stresses (e.g. a fall from a height, in­cluding without any visisble external damage
etc).

• Please check the delivered items for comple­teness before starting with the installation of
the device.

All supplied options and design versi­ons are described on the delivery note.

All screw clamps that belong to the
scope of supply are attached to the
device.

C

C

C

7

UMG 508

Art.no. Description

13 10 539 Profibus plug, 9-pole DSUB, with integrated switchable terminating
resistors.

1)

Refer to delivery note for article number.

Scope of Supply

Available accessories

Quantity Art.no. Description

1 52 21 xxx 1) UMG508
1 33 03 121 operating manual
1 51 00 116 CD with the following contents:

- "GridVis“ programming software,

- DEscription of functions, GridVis, UMG508,

- UMG508, GSD file "U5080C2C.GSD“ for Profibus DP V0
1 10 01 818 screw clamp, pluggable, 2-pole (auxiliary power)
1 10 01 847 screw clamp, pluggable, 5-pole (voltage measurement 1-4)
1 10 01 822 screw clamp, pluggable, 8-pole (current measurement 1-4)
1 10 01 810 screw clamp, pluggable, 6-pole (digital outputs)
2 10 01 809 screw clamp, pluggable, 5-pole (digital inputs)
1 08 01 505 2m patch cable, twisted, gray (connection UMG508-PC/Switch/Hub)
1 52 19 301 fixing clips

8

UMG 508

Description

Intended Use

The UMG508 is intended for measurements in
the building installation, on distributors, power
switches and bus bars.
Measurement voltages and measurement cur­rents must come from the same network.

The UMG508 is suitable for installation in switch
boards with a fixed, weather-protected extrada­ta.

The UMG508 can be used in 2, 3 and 4 supply
networks and in TN and TT networks.

The current measurement inputs of the UMG508
are connected using external ../1A or ../5A cur­rent transformers.

The measurement in medium and high-voltage
networks generally takes place using current
and voltage transformers.
The UMG508 can be used in residential and in­dustrial areas.

Measurement results can be displayed, saved
and read-out using serial interfaces for further
processing.

9

UMG 508

Features

• Front board installation, 144x144mm,

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

• Colour graphic display 320x240, 256 colours, 6 keys,

• 8 digital inputs, 5 digital outputs,

• 16Bit A/transformer, data memory 256MByte Flash, SDRAM 32Mbyte,

• Continuous scanning of voltage and current measurement inputs with 20kHz,

• Frequency range of fundamental oscillation 40Hz .. 70Hz

• 4 voltage measurement inputs, 4 current measurement inputs,

• Measurement in TN and TT networks,

• RS485: Profibus DP/V0, Modbus RTU, Modbus-Master, BACnet (Option)

• Ethernet: Web-Server, EMAIL, BACnet (Option),TCP/IP, EMAIL (SMTP), DHCP-Client (BootP),
Modbus/TCP, Modbus RTU over Ethernet, FTP, ICMP (Ping), NTP, TFTP. BACnet (Option), SNMP.

• Detection of transients >50µs and storage with up to 16000 scanning points,

• Detection of more than 800 measurement values,

• Measurement of harmonics 1 to 40, for

- Uln, I, P (ref/supply) and

- Q (ind/cap),

• Programming own applications in Jasic.

10

UMG 508

Measurement Method

The UMG508 measures without any gaps and
calculates all effective values over a 200ms In­terval.
The UMG508 measures the real effective value
(TRMS) of the voltages and currents applied to
the measurement inputs.

Operating Concept

You can program the UMG508 in several ways
and call up measurement values.

• Direct- on the device using 6 keys and the
display.

• Using the programming softwareGridVis.

• Using the UMG508 homepagefor devices
with an Ethernet interface.

• Using the RS485 with theModbus-protocol.
You can change and call up data with the help
of the Modbus address list (stored on the en­closed data carrier).

Only operating the UMG508 using the integra­ted display and the 6 keys is described in this
operating manual.
The GridVis programming software and the
homepage have their own "online assistance“.

11

UMG 508

GridVis network analysis software

The UMG508 can be programmed and read­out with the GridVis network analysis software

included in the scope of supply. A PC must
be connected using a serial interface (RS485/
Ethernet) to the UMG508.

GridVis features

• Programming the UMG508.

• Configuration of recordings.

• Recordings read-out.

• Saving data in a database.

• Graphic presentation of measurement values.

• Programming specific applications for the cli­ent.

PC

UMG

508

Ethernet

Illu. Connection of a UMG508 to a PC using an
interface converter.

PC

UMG

508

RS232

RS485

Interface

Converter

Illu. Connection of a UMG508 to a PC using
Ethernet.

12

UMG 508

Assembly

Place of Installation

The UMG508 is suitable for installation in fixed,
weather protected switch boards. Conducting
switch boards have to be grounded.

Installation extradata

In order to achieve sufficient ventilation, the
UMG508 has to be installed vertically. The clea­rance has to be at least 50mm at the top and
bottom and 20mm at the side.

Front Board Cutout

Cutout size: 138

+0.8

x 138

+0.8

mm

Failure to maintain the minimum clea­rances can destroy the UMG508 at
high environmental temperatures!

Wall

Airflow

Airflow

Ethernet
Connection

Illu. UMG508 installation extradata; view from
back.

m

13

UMG 508

Ethernet Connection

Patch Cable

Ethernet Connection

The UMG508's Ethernet connection is located
on the underside of the housing.
Depending on the bending radius of the Ether­net cable and plug type, you must provide a
connection area beneath the UMG508.

The connection area beneath the UMG508
should not be less than 50 mm.

50 mm

Fixing

The UMG508 is fixed into the switch board with
two fixing clips that are each mounted on the
device at the top and bottom.

Fixing Clips

14

UMG 508

Installation

Protective Wire Connection

Use a ring cable lug for connecting the protecti­ve wire to the UMG508.

Supply Voltage

A supply voltage is required to operate the
UMG508. The type and level of the necessary
supply voltage is noted on the label.

Before applying the supply voltage, make sure
that the voltage and the frequency match the
details on the label!

The auxiliary voltage has to be connected via an
UL/IEC approved fuse (1A Class CC) or a circuit
breaker (1A C.Char.)

Illu. Connection example; connection of supply
voltage to a UMG508.

Separator

Fuse

L1 N PEL3L2

Protective wire

c

Warning - danger of death!

It is necessary for the protective wire
connection on the device to be con­nected with the system grounding.

Connection point for

protective wire

15

UMG 508

- An isolator or circuit breaker must be
provided for the voltage supply in buil­ding installation.

- The isolator must be attached near
to the device and must be easy for the
user to access.

- The switch must be marked as a se­parator for this device.

-Voltages above the authorized voltage
range can destroy the device.

m

Warning!
The inputs for the supply voltage are
dangerous to touch!

c

Warning!
Please pay attention to the details on
the supply voltage provided on the
UMG508 label.

c

16

UMG 508

Illu. Basic circuit diagram, UMG508 in theTN-
network.

Voltage Measurement
Three-phase 4 conductor systems

The UMG508 can be used in three-phase 4 con­ductor systems (TN, TT network) with a groun­ded neutral wire. The bodies of the electrical
system are grounded.

Three-phase 3 conductor systems

The UMG508 is only suitable for use in IT net­works with restrictions, because the measure­ment voltage is measured against the housing
potential and the input impedance of the device
causes a leakage current against ground. The
leakage current can cause isolation monitoring
in IT networks to respond.
Connection variations with a voltage transfor­mer are suitable for IT networks without any re­strictions.

Illu. Basic circuit diagram, UMG508 in the IT net­work without N.

600V 50/60Hz

DC

AC/DC

L2

L3

Auxiliary

power

Voltage measurement

4M

4M

4M

4M

V1

V3V2

4M

V4

System
grounding

Impedance

L1

UMG508

Vref

PE

347V/600V 50/60Hz

L2

L3

N

L1

N

L1

240V

50/60Hz

System
grounding

DC

AC/DC

Auxiliary

power

Voltage measurement

4M

4M

4M

4M

V1 V3V2 Vref

4M

V4

UMG508

17

UMG 508

Maximum nominal voltage of

the network

Maximum nominal voltage of

the network according to UL

U

L-N

/ U

L-L

66V / 115V
120V / 208V
127V / 220V
220V / 380V
230V / 400V
240V / 415V
260V / 440V
277V / 480V
347V / 600V

Illu. Table of suitable network nominal voltages
for the voltage measurement inputs according
to EN60664-1:2003.

Three-phase 4 conductor systems with
grounded neutral wire.

Nominal Voltages

Lists of the networks and their nominal network
voltages in which the UMG508 can be used.

U

L-L

66V
115V
120V
127V
200V
220V
230V
240V
260V
277V
347V
380V
400V
415V
440V
480V
500V
577V
600V

Illu. Table of suitable network nominal voltages
for the voltage measurement inputs according
to EN60664-1:2003.

Ungrounded three-phase 3 conductor
systems.

18

UMG 508

Voltage Measurement Inputs

The UMG508 has 4 voltage measurement in­puts (V1, V2, V3, V4).

Measurement category

The voltage measurement inputs are suitable for
measurements in networks in which overvolta­ges in the measurement category 600V CATIII
can occur.

Frequency

The UMG508 requires the rated frequency for
measuring and calculating measurement values.
The UMG508 is suitable for measurements in
networks with a rated frequency in the range of
40Hz to 70Hz.

Illu. Connection example for voltage measure­ment.

A connection diagram does not have
to be configured for the measurement
inputs V4 and I4.

C

L1 N PEL3L2

10A

(UL/IEC listed)

19

UMG 508

The following has to be considered when con­necting the voltage measurement:

• A suitable separator is to be provided in order
to disconnect the UMG508 from the current
and voltage.

• The separator must be placed near to the
UMG508, labelled for the user and must be
easy to reach.

• Use for over current protection and circuit
breaker an UL/IEC approved fuse 10A Class
CC.

• The overcurrent protection device must have
a nominal value calculated for the short-cir­cuit current at the connection point.

• Measurement voltages and measurement
currents must come from the same network.

Warning!

The voltage measurement inputs on the
UMG508 are dangerous to touch!

c

Warning!

The UMG508 is not suitable for measu­ring DC voltages.

Warning!

Voltages that exceed the authorized
network nominal voltages must be
connected using a voltage converter.

c

Warning!
The voltage measurement inputs may
not be used for voltage measurement
in SELV circuits (Safety Extra Low Vol­tage).

c

c

20

UMG 508

Connection diagrams, voltage measurement

L1
L2
L3

N

V

1 V2 V3 V4 Vref

3p 4wu

L1
L2
L3

N

V1 V2 V3 V4 Vref

3p 4w

L1
L2
L3

N

V1 V2 V3 V4 Vref

3p 4wu

L1
L2
L3

N

3p 4w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

V

1 V2 V3 V4 Vref

3p 4wu

L1
L2
L3

N

V

1 V2 V3 V4 Vref

3p 4w

L1

L2

V

1 V2 V3 V4 Vref

1p 2w

L1
L2
L3

V1 V2 V3 V4 Vref

3p 3wu

L1
L2
L3

N

V

1 V2 V3 V4 Vref

3p 4wu

L1

L2

V1 V2 V3 V4 Vref

1p 2w

L1
L2
L3

3p 2i0

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 4w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

21

UMG 508

L1
L2
L3

N

V

1 V2 V3 V4 Vref

3p 4wu

L1
L2
L3

N

V

1 V2 V3 V4 Vref

3p 4w

L1

L2

V

1 V2 V3 V4 Vref

1p 2w

L1
L2
L3

V

1 V2 V3 V4 Vref

3p 3wu

L1
L2
L3

V1 V2 V3 V4 Vref

3p 3w

L
L
L
L

V

1 V2 V3 V4 Vref

3p 5w

N

L1
L2
L3

N

V

1 V2 V3 V4 Vref

3p 4wu

L1

L2

V

1 V2 V3 V4 Vref

1p 2w

L1
L2
L3

3p 2i0

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 4w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L
L
L
L

N

3p 5w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L
L
L
L

V1 V2 V3 V4 Vref

3p 5w

N

22

UMG 508

Connection diagrams, current measurement

L1
L2
L3

N

3p 2i

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 4w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 2i

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 2i

L1
L2
L3

3p 2i0

L1

L2

1p 2i

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 4w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 2i

L1

L2

1p 2i

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

23

UMG 508

L1
L2
L3

N

3p 2i

L1
L2
L3

3p 2i0

L1

L2

1p 2i

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L1
L2
L3

N

3p 4w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

L
L
L
L

N

3p 5w

I1 I2 I3 I4

S1 S2 S1 S2 S1 S2 S1 S2

24

UMG 508

Current measurement

The UMG508 is designed for connecting current
converters with secondary currents of ../1A and
../5A. Only alternating currents, and no direct
currents, can be measured.
Each current measurement input can be loaded
with 120A for 1 second.

Grounding current converters!
If a connection is provided for ground­ing the secondary winding, this must be
connected with ground.

Illu. Connection example, current measurement
using current converter.

Warning!
The UMG508 is not suitable for the
measurement of direct voltages.

Warning!
The current measurement inputs are
dangerous to touch.

m

c

c

A connection diagram does not have
to be configured for meaurement in­puts V4 and I4.

C

S1

S2

L1 N PEL3L2

S1

S2

S1

S2

S1

S2

25

UMG 508

Current converter connections!

The secondary connections of the cur­rent converter must be short-circuited
to these before the electricity cables
are disconnected from the UMG508!
If a test switch is available which auto­matically shorts the secondary current
converter lines, it is sufficient to set
them to the "test" extradata, as long as
the short-circuiters have been checked
beforehand.

Open current converters!

Extreme contact danger due to voltage
peaks can occur on current converters
that are operated open on the secon­dary side!
For "anti-open current converters", the
winding isolation is calculated so that
the current converters can be operated
open. However, these current conver­ters are also dangerous to touch if they
are operated open.

cc

Current Direction

The current direction can corrected on the de­vice or individually using the available serial in­terfaces for each phase.
In the case of incorrect connection, subsequent
reconnection of the current converter is not ne­cessary.

26

UMG 508

Total current measurement

If the current is measured using two current
converters, the total transfer ratio of the cur­rent converters must be programmed in the
UMG508.

Illu. Example, current measurement using a total
current converter.

Example
The current measurement takes place using
two current converters. Both current conver­ters have a transfer ratio of 1000/5A. The total
measurement is carried out with a 5+5/5A total
current converter.
The UMG508 must then be set as follows:

Primary current: 1000A + 1000A = 2000A
Secondary current: 5A

UMG

S2

I

S

1

P1

P2

Einspeisung 1
Supply 1

Einspeisung 2

Supply 2

1P1

1P2

(K)

(L)

(k)
(l)

1S

2

1S1

1S1 1S2 2S1 2S2

2S1

2S2

(k)

(l)

(K)
(L)

2P

1

2P2

Verbraucher A
Consumer A

Verbraucher B

Consumer B

27

UMG 508

Illu. Example, current measurement with an ad­ditional ampere meter.

Ampere meter

If you do not want to measure the current with
the UMG508 alone, but also with an additional
ampere meter, the ampere meter must be swit­ched in series to the UMG508.

Illu. Example, direct current measurement.

Direct measurement

Nominal currents up to 5A can also be directly
measured with the UMG508.
Under consideration that the direct measure­ment will be carried out for the current only in
three phase 4 wire systems with mains volt­age till

• 127V/220V (300V CAT III) according UL

and three phase 3 wire systems with mains
voltage till

• 277V (300V CAT III) according UL

Due to the fact that the UMG508 does not
have integrated protection for the current
measurement, this protection must be fore­seen in the installation.

UMG

S2

I

S

1

Einspeisung
Supply

Verbraucher

Consumer

A

(k)S

1 S2(l)

P

2(L)(K)P1

UMG

S2

I

S

1

Einspeisung

Supply

Verbraucher
Consumer

5A Typ C

28

UMG 508

RS485

The RS485 interface is designed as a 9-pole
DSUB socket on the UMG508.
On this interface, the UMG508 supports the fol­lowing selection of protocols:

• Modbus RTU

• Profibus DP V0 Slave

For connection, we recommend a 9-pin profibus
(modbus) plug e.g. the company Phoenix, type
„SUBCON-Plus-ProfiB/AX/SC“ with the article
number 2744380 (Janitza article no. 13.10.539).

Illu. UMG508 with DSUB socket for the RS485
interface.

DSUB socket

for Modbus
or Profibus.

29

UMG 508

Connection of Bus Lines

The incoming bus line is connected to clamps
1A and 1B. The bus line for the next device in
the line is connected to clamps 2A and 2B. If
there is no further device in the line, the bus line
has to be terminated with resistors (switch to
ON).
In switch extradata ON, clamps 2A and 2B are
switched off for the continuing bus line.

Illu. Profibus plug with terminating resistors.

Profibus- (Modbus)-Stecker (extern)

Profibus (Modbus) connector (external)

Terminating resistors

Other

profibus

stations

Screw-type terminals

D-sub,

9 pin,

socket

D-sub,

9 pin,

connec-

tor

30

UMG 508

Shields

A twisted, shielded cable is foreseen for con­nections using the RS485 interface.

• Ground the shields of all cables leading to the
cabinet at the cabinet entry point.

• Connect the shield extensively and with
good conductivity with a low external voltage
ground.

• Intercept the cable mechanically above
the ground clip in order to avoid damages
caused by cable movements.

• Use suitable cable insert guides, such as PG
glands, to guide the cable into the switch ca­binet.

Cable type

The cables used must be suitable for an envi­ronmental temperature of at least 80°C.
Recommended cable types:
Unitronic Li2YCY(TP) 2x2x0.22 (Lapp cable)
Unitronic BUS L2/FIP 1x2x0.64 (Lapp cable)

Maximum cable length

1200m at a Baud rate of 38.4k.

Illu. Shielding arrangement at cabinet entry
point.

Cable

Strain relief

Cable shielding braid.

Grounding clip

Low external voltage
ground.

Terminal resistors

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

The UMG508 does not have any terminal resis­tors.

C

For the wiring of the Modbus con­nection, CAT cables are not suitable.
Please use the recommended cables.

31

UMG 508

Bus structure

• All devices are connected in a bus structure
(line).

• In one segment, up to 32 participants can be
switched together.

• The cable is terminated with resistors at the
beginning and end of a segment.

• Repeaters (power boosters) must be used
with more than 32 participants in order to
connect the individual segments.

• Devices with terminated resistor have to be
supplied.

• We recommend to install the master UMG at
the end of the segment.

• In case that the master UMG with terminated
bus resistor will be removed, the bus is not
under operation.

• In case that slave UMG with terminated bus
resistor will be removed or is not switched
on, the bus is can be unstable.

• UMGs which have no termination can be re­placed without any interruption of the bus.

32

UMG 508

Ethernet

The network settings for the Ethernet are speci­fied by the network administrator and set accor­dingly on the UMG508.
If the network settings are not known, the patch
cable may not be plugged into the UMG508.

Ethernet connection

Patch cable

Warning!
Incorrect nework settings can cause
faults in the network!

m

33

UMG 508

Illu. Connection example; UMG508 and PC
need a fixed IP address.

Illu. Connection example; UMG508 and PC are
automatically allocated the IP address from a
DHCP server.

DHCP

Server

Switch

PC UMG508

Patch cable

PC

UMG508

Patch cable

Switch

Illu. Connection example; direct connection
between the UMG508 and PC using a twisted
patch cable (art. no. 08.01.505)

PC

UMG508

Patch cable

(twisted)

34

UMG 508

Digital outputs

The UMG508 has 5 digital outputs. These out­puts are separated galvanically from the analy­sis electronics using optocouplers. The digital
outputs have a common reference.

• The digital outputs can switch AC and DC
loads.

• The digital outputs arenotshort-circuit proof.

• Connected lines that are longer than 30m
must be laid with shields.

• External auxiliary power is necessary.

~

Illu. Digital outputs connection.

35

UMG 508

Illu. Connection of two relays to digital outputs
4 and 5.

16

K1 K2

24V

AC

External

auxiliary power

UMG508

Digital outputs 1-5
Digital Outputs 1-5

12

Digital

Output 5

13

Digital

Output 4

14

Digital

Output 3

15

Digital

Output 2

Digital

Output 1

~~

11

36

UMG 508

Digital Inputs

The UMG508 has 8 digital inputs. The digital in­puts are divided into two groups, each with 4
inputs. Each group has a common reference.

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

24V

DC

-

+

External

auxiliary power

S1

S2

UMG508

Digital Inputs 1-4
Digital Inputs 1-4

3.9V

4k

10

Digital

Input 1

Digital

Input 3

Digital

Input 2

Digital

Input 4

3.9V

3,9V

3,9V

4k

4k

4k

9

8

7

6

-

+

-

+

Illu. Example for the connection of digital inputs.

37

UMG 508

S0 impulse input

You can connect an S0 impulse generator in ac­cordance with DIN EN62053-31 to each digital
input.
You require an external auxiliary voltage with an
output voltage in the range of 20 .. 28V DC and
a resistor with 1.5kOhm.

Illu. Example for the connection of an S0 impul­se generator to digital input 1.

24V

DC

-

+

External

auxiliary voltage

UMG508

Digitale Inputs 1-4
Digital Inputs 1-4

3.9V

4k

10

Digital

Input 1

Digital

Input 3

Digital

Input 2

Digital

Input 4

3.9V

3.9V

3.9V

4k

4k

4k

9

8

7

6

1.5k

S0

Impulse

generator

38

UMG 508

Operation

The UMG508 is operated using six function
keys.
The six keys are allocated different functions
depending on the context:

• Selection of measurement value displays.

• Navigation within the menu.

• Processing the device settings.

Function key labeling

Display titles

Measurement values

Function keys

39

UMG 508

Measurement value displays

Main values

You can use keys 2 and 5 to browse between
the main values of the measurement value dis­plays.

Display

Configuration

Display

Pointer dia-

gram

Display

"Home“

Display

Voltages L-N

Auxiliary values

You can use keys 3 and 4 to browse between
the auxiliary values of a measurement value dis­play.

Display

Voltage L-N

Display

Voltages L-L

Main values

Auxiliary values

40

UMG 508

"Home“ measurement value display

Once the network returns, the UMG508 starts
with the "Home“ measurement value display.
This measurement value display contains the
device names and an overview of important
measurement values. The device name consists
of the device type and serial number upon de­livery.

Using the "Home - Key 1“, you come
out of the measurement value dis­plays for the main values directly to
the first "Home" measurement value
display.

41

UMG 508

Select measurement value display

You want to change to a measurement value
display with main values.

• Use the function keys 2 and 5 to browse bet­ween the measurement value displays of the
main values.

• With function key 1 (Home), you always ac­cess the first measurement value display.

Display

Voltage L-N

Display

Voltages L-L

You want to change to a measurement value
display with auxiliary values.

• Select the measurement value display with
the main values.

• Select the measurement value display with
function keys 3 and 4 for the auxiliary values.

Example: selection of auxiliary value voltage.

42

UMG 508

Call up additional information

• Browse with keys 2 to 5 to the required mea­surement value display.

• Activate the measurement value selection
with key 6 (selection).

• Select the required measurement value with
keys 2 to 5.

• The background colour for the measurement
value changes from grey to green. The addi­tional information is shown in a blue window.

• End the process with key 1 (ESC) or select
another measurement value with keys 2 to 5.

43

UMG 508

Delete min/max values individually

• Use keys 2 to 5 to browse to the required
measurement value display.

• Activate the measurement value selection
with key 6 (selection).

• Select the required minimum and maximum
value with keys 2 to 5.

• The background colour for the measurement
value changes from grey to green. The point
with the date and time of occurence is shown
in an additional blue window.

• You can now delete the selected min or max
value with key 6 (reset).

• End the process with key 1 (ESC) or select
another min/max value with keys 2 to 5.

C

The date and time for the min/max va­lues are shown in UTC time (coordina­ted world time).

44

UMG 508

List of transients

Recognized transients are listed in the transi­ents list.

• The transients list consists of 2 pages.

• Transients 1 to 8 are listed on page 1 and 9
to 16 on page 2.

Display transients

• Go to the transients list with key 6 „selec­tion“.

• Select a transient with keys 3 and 4.

• Allow to the transients to be presented gra­phically with key 6.

• Show or hide the legends with key 6 „Le­gends“.

• You can exit the graphic presentation of the
transients with key 1.

Transient voltages are quick, impulsive
transient oscillation processes in elec­trical networks.
Transient voltages are not predictable
with respect to time and have a limited
period.
Transient voltages are caused by the
effects of lighting, by switching opera­tions or by triggered fuses.

C

45

UMG 508

List of events

Recognized events are listed in the events list.

• The events list consists of 2 pages.

• Events 1 to 8 are listed on page 1 and events
9 to 18 on page 2.

Display incident

• Go to the events list with key 6 „Selection“.

• Select an incident with keys 3 and 4.

• Allow the incident to be graphically presen­ted with key 6.

• Show or hide the legends with key 6 „Le­gends“.

• You can leave the graphic presentation of the
incident with key 1.

Events are limit value violations of ef­fective current and voltage values.

C

46

UMG 508

Configuration

The supply voltage must be connected for con­figuration of the UMG508.

Apply supply voltage

• The level of supply voltage for the UMG508
can be taken from the label.

• After applying the supply voltage, a startup
screen appears on the display. Approximate­ly ten seconds later, the UMG508 changes to
the first „Home“ measurement value display.

• If a display does not appear, check whether
the applied supply voltage is within the nomi­nal voltage range.

Warning!

Supply voltages that do not corres­pond with the label details can lead to
incorrect functions and damage to the
device.

c

Illu. Example of "Home“ measurement value.

47

UMG 508

Configuration menu

Once the network returns, the „Home“ measu­rement value display is found on the start page.

• Browse to the menu configuration with key 1.

If you are in a measurement value display for
main values, you use

• key 1 - „Home“ to directly access the first
„Home“ measurement display.

• Use key 1 to browse to the menu configu­ration.

Language

You can set the language for the measurement
value displays and menus directly in the "confi­guration" menu.
There are different languages to select between.
The preset language in the factory is "English".

Display

Configuration

Display

"home“

Main values

Illu. Example configuration of "languages".

48

UMG 508

Communication

The UMG508 has an Ethernet and a RS485 in­terface.

Ethernet (TCP/IP)

Select the type of address allocation for the
Ethernet interface here.

DHCP mode

• Off- IP address, Netmask and Gateway are
specified by the user and set directly on the
UMG508. Select this mode for simple net­works without a DHCP server.

• BOOTP - BootP permits the fully automatic
integration of a UMG508 in an existing net­work. BootP is an older protocol and does
not have DHCP's extent of functions.

• DHCP- Upon starting, the UMG508 automa­tically collects the IP address, the Netmask
and the Gateway from a DHCP server.

Factory pre-setting:DHCP

The UMG508 may only be connected
to the Ethernet after coordinating with
the network administrator!

m

49

UMG 508

RS485

You can specify the protocol, the device address
and the Baud rate for operating the RS485 inter­face.

Protocol

Selection options:

• Modbus Slave

• Modbus Master/Gateway

• Profibus DP V0

• BACnet (Option)

Factory pre-setting:
Modbus Master/Gateway

Device address

Setting range: 0 - 255
Factory pre-setting: 1

Baud rate

Setting range: 9.600, 19.200, 38.400, 57.600,

115.200, 921.600 kbps

Factory pre-setting: 115.200 kbps

50

UMG 508

Measurement

Configure here:

• The measurement converters for the current
and voltage measurement.

• The record of transients.

• The recording of events.

• The rated frequency.

51

UMG 508

Rated frequency

For measuring and calculating the meaurement
values, the UMG508 requires the Rated fre­quency of a.c. systems.
The UMG508 is suitable for measurements in
networks with a rated frequency in the range of
40Hz to 70Hz.

The rated frequency can be specified by the
user or automatically detected by the device.

• Auto- Factory pre-setting. The rated fre­quency is measured.

• 50Hz- The rated frequency is set to 50Hz.
The rated frequency is not measured.

• 60Hz- The rated frequency is set to 60Hz.
The rated frequency is not measured.

Automatic frequency detection

A voltage (V-Vref) larger than 10Veff must be
applied on at least one of the voltage measure­ment inputs for the automatic detection of fre­quency by the UMG508.
If a sufficient measurement voltage is not ap­plied, the UMG508 can not detect the rated fre­quency and a measurement can therefore not
be carried out.

52

UMG 508

Nominal voltage

The nominal voltage specifies the value which

• transients,

• events and automatic graphic scaling refer
to.

Setting range: 0 .. 1,000,000 V
Factory pre-setting: 230 V

For example, you can also select the primary
voltage as nominal voltage.

Voltage converter

You can allocate the main meaurement and the
auxiliary measurement voltage converter rela­tions.
You select the setting 400 V / 400 V for measu­rements without a voltage converter.

Setting range:
Primary 1 .. 999,999 V
Secondary 1 .. 400 V

Factory pre-setting:
Primary 400 V
Secondary 400 V

53

UMG 508

Illu. Example for voltage measurement in a 3
phase 4 conductor network.

A connection diagram has to be con­figured for the measurement inputs V4
and I4.

C

Connection diagram for voltage
measurement

For the voltage measurement, you can select
between the following connection diagrams:

3p4w - 3 phase 4 conductor
3p4wu - 3 phase 4 conductor
3p3w - 3 phase 4 conductor
For networks without a neutral
conductor under symmetric load.
3p3wu - 3 Phasen 3 Leiter
For networks without a neutral
conductor under symmetric load.
3p5w - 3 Phasen 4 Leiter
Measurement of an additional
measuring point.
1p2w - 1 phase 2 conductor (180°)

Factory pre-setting: 3p4w

54

UMG 508

Current converter

You can allocate both the main measurement
and auxiliary measurement current converter
relations.
Select setting 5/5A for direct measurement of
currents.

Setting range:
Primary 1 .. 999,999 A
Secondary 1 .. 5 A
Factory pre-setting:
Primary 5 A
Secondary 5 A

Nominal current

The nominal current specifies which value

• overcurrent,

• current transients,

• and automatic graphics scaling

refer to.

Setting range: 0 .. 1,000,000 A

You can only set the nominal values for
measurement of the K-Factor and TDD
using GridVis.

C

55

UMG 508

Illu. Example for current measurement using 3
current converters in a 3 phase 4 conductor net­work.

A connection diagram does not have
to be configured for measurement in­puts V4 and I4.

C

Connection diagram for current
measurement

You can select between the following connec­tion diagrams for current measurement:

3p4w - 3 phase 4 conductor, 3 current conv.
3p5w - 3 phase 4 conductor, 4 current conv.
The fourth current transformer can be
used for measuring the neutral
conductor e.g.
3p2i - 3 phase 4 conductor, 2 current conv.
For networks under symmetric load.
3p2i0 - 3 phase 3 conductor, 2 current conv.
Aron connection for networks without
a neutral conductor. The third current
will be calculated.
1p2i - 1 Phasen 2 Leiter, 2 Stromwandler

Factory pre-setting: 3p4w

56

UMG 508

Transients

Transient voltages are rapid, impulsive transi­ent oscillation processes in electrical networks.
Transient voltages are not predictable with res­pect to time and last for a limited period.
Transient voltages are caused by the effects of
lighting, due to switching operations or the trig­gering of fuses.

• The UMG508 recognizes transients that are
longer than 50µs.

• The UMG508 monitors the voltage measure­ment inputs on transients.

• Transient monitoring can be set per phase.

• There are two independent criteria for recog­nizing transients.

• If a transient has been recognized, the wave
shape is saved in a transient recording.

• If a transient has been recognized, the limit
value is automatically increased by 20V, both
in automatic and manual modes. This auto­matic increase of the limit value fades within
10 minutes.

• If another transient is recognized within the
next 60 seconds, this transient is recorded
with 512 points.

• You can display recorded transients with the
GridVis incident browser.

57

UMG 508

Mode (delta)

If the difference of two neighbouring scanning
points exceeds the set limit value, a transient is
recognized.

• Off- Transient monitoring is switched off.

• Automatic- Factoring pre-setting. The limit

value is calculated automatically and is 0.2175
times the current 200ms effective value.

• Manual- Transient monitoring uses the adjus­table limit value under "Trns U“.

Accept L2-L4

Transient monitoring can be set per phase. You
can accept settings from phase L1 into phases
L2, L3 and L4.

• No - The L1 phase settings are not transferred
to the stages L2, L3 and L4.

• Yes- The settings from phase L1 are taken
over into phases L2, L3 and L4.

Mode (absolute)

If a scanning value exceeds the set limit value, a
transient is recognized.

• Off- Transient monitoring is switched off

• Automatic- Factory pre-setting. The limit va-

lue is automatically calculated and is 110% of
the current 200 ms effective value.

• Manual- Transient monitoring uses the adjus­table limit value under "Peak U“.

58

UMG 508

Events

Events are threshold value violations of set
threshold values for current and voltage.
Here, threshold values are compared with the
full wave effective values for current and volta­ge from the measurement channels. The event
record consists of a mean value, a minimum or
maximum value, a start time and an end time.

• Monitoring of the threshold values can be
switched off (Off/Manual).

• Threshold values must be set as a percentage
of the nominal value.

• Threshold values can be set for excess volta­ge, undervoltage and overcurrent.

• An event is triggered if in the course of the pre­run period there is an uninterrupted threshold
value violation. An event is ended if there are
no threshold value violations in the course of
the after-run period.

• If an event has occurred, the corresponding
measurement value is recorded with the set
pre-run and after-run periods (respectively

0..1000 full waves).

• Event records are configured with the GridVis
and displayed with the event browser.

Limit value

Measured
value

Vollwellen­effektivwert

Limit value

violations

before the

lead time

End time

Limit value violations
before the follow-up time

Event

Follow-up timeLead time

Start time event

(Trigger time)

Event record

Pre-run

After-run

Fig. Shows the full wave effective values for an
event.

59

UMG 508

Voltage

Drop

A drop in voltage is set in % of the nominal vol­tage.

Overvoltage

The overvoltage is set in % of the nominal vol­tage.

Current

Overcurrent

The rapid increase of current is set in % of the
nominal current.

Accept L2-L4

Monitoring of events can be set per phase. You
can accept settings from phase L1 into phases
L2, L3 and L4.

• No- Settings from phase L1 are not taken
over into phases L2, L3 and L4.

• Yes- The settings from phase L1 are taken
over into phases L2, L3 and L4.

Follow-up time

The follow-up time can only be set with
GridVis.
Factory pre-setting: 0

C

Preparation time

The preparation time can only be set
with GridVis.
Factory pre-setting: 0

C

60

UMG 508

Display

Brightness

The brightness level of the background illumi­nation can be adjusted. The brightness level set
here is used during operation of the UMG508.
Setting range: 0 .. 100%
Factory pre-setting: 70%
(0% = dark, 100% = very bright)

Standby

This refers to the time before the brightness
changes to "standby brightness".
Setting range: 60 .. 9999 seconds
Factory pre-setting: 900 seconds

Standby brightness

This refers to the brightness level changed to
after the end of the standby time. The standby
time is restarted by using keys 1-6.
Setting range: 0 .. 60%
Factory pre-setting: 40%

Screensaver

The screensaver prevents a screen on the LCD
from "sticking" if the screen does not change for
a longer period of time.
Setting range: yes, no
Factory pre-setting: yes

Presentation

You can specify the speed at which new measu­rement values should appear on the measure­ment value displays.
Setting range: fast (200ms),
slow (1s)
Factory pre-setting: fast

Rotate

The measurement value displays are automati­cally displayed in sequence. The configuration
displays are not affected by this.
Setting range: yes, no
Factory pre-setting: no

61

UMG 508

The service life of the background il­lumination extends if the brightness
of the background illumination is kept
lower.

Transition time

You can set the time between automatic transiti­on to the next measurement value display.
Setting range: 0 .. 255 seconds
Factory pre-setting: 2 seconds

C

62

UMG 508

System settings

Display of system settings specific to the de­vice.

Firmware version

Device serial number

Fixed device MAC address

Set IP address

Set Gateway address

Date and time

Set password

Reset settings

Illu. Example for the display of system settings.

C

You cannot configure the date and time
directly on the device.
Settings for time synchronization and
the date and time can only be made
using GridVis.

63

UMG 508

Forgotten password

If you have forgotten the password, you can
only delete the password using the "GridVis“
software.
In order to do this, connect the UMG508 with
the PC using a suitable interface. Further infor­mation can be found in the GridVis assistant.

Password

The user can block access to the configuration
with a password. Changing the configuration di­rectly on the device is then only possible after
entering the password.
The password consists of a 6 digit combination
of numbers.

Setting range: 1-999999 = with password
000000 = without password

A password (000000) is not programmed in the
factory.

• In order to change a set password, you must
know the current password.

• Note any changed password.

• If you do not want a password request any­more, enter "000000" as a password.

64

UMG 508

Delete minimum and maximum va­lues

You can delete all minimum and maximum valu­es in the UMG508 simultaneously.

How to delete the individual minimum and maxi­mum values is described in the chapter "indivi­dually deleting min. and max. values".

Delete all minimum and maximum values.

• Select "yes" with key 3

• Confirm with key 6.

• The message "executed" appears in the line ­all minimum and maximum values have been
deleted.

65

UMG 508

Delete power meters

You can delete all power meters in the UMG508
at the same time.
A selection of certain power meters is not pos­sible.

• Select with key 3 "yes“

• Confirm with key 6.

• The message "executed" appears in the line ­all power meters have been deleted.

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

C

66

UMG 508

Delivered condition

All settings such as the configuration and recor­ded data are reset to the factory pre-settings or
deleted. Entered release codes are not deleted.

• Select with key 3 "yes“

• Confirm with key 6.

• The message "executed" appears in the line ­the delivered condition is reinstored.

Restart

The UMG508 restarts all programs.

• Select with the key 3 "yes“.

• Confirm with key 6.

• The message "executed" appears in the line

- all programs have been restarted.

67

UMG 508

Colors

Selection of colors for the presentation of cur­rent and voltage in the graphic presentations.

68

UMG 508

Extensions

Under "Extensions“ you can subsequently re­lease charged functions and show the status of
Jasic programs.

69

UMG 508

Release

The UMG508 contains chargeable functions
that can be subsequently released.
List of release functions:

• BACnet

• EMAX

You receive the release code from the manufac­turer. The manufacturer needs the device serial
number and the name of function to be released.
In order to release the function, you enter the 6
digit release code in the respective line.
Please note that the release code is only valid
for one device.

70

UMG 508

Jasic status

Up to 7 specific customer Jasic programs (1-7)
and one recording can run in the UMG508.
The Jasic programs can adopt the following sta­tuses:

• Stopped

• Running

You cannot change the status of Jasic programs
on the device.

71

UMG 508

Initialization

Applying the supply voltage

• The level of supply voltage for the UMG508
can be taken from the label.

• After applying the supply voltage, a startup
screen appears on the display. Around ten
seconds later, the UMG508 changes to the
first measurement value display.

• If no display appears, you must check whe­ther the supply voltage is within the nominal
voltage range.

Warning!

Supply voltages that do not corres­pond with the details on the type label
can lead to malfunctions and damage
to the device.

m

72

UMG 508

Rotary field direction

Check the direction of the voltage rotary field on
the measurement value display of the UMG508.
A "right" rotary field is usually available.

Presentation of the phase sequence according
to the rotary field direction.

UL1-UL2-UL3 = right rotary field
UL1-UL3-UL2 = left rotary field

Apply measurement voltage

• Voltage measurements in networks with
nominal voltages above 346VAC against
ground must be connected using a voltage
converter.

• After connection of the measurement volta­ges, the measurement values displayed by
the UMG508 for voltages L-N and L-L must
match those at the voltage measurement in­put.

• If a voltage converter factor is programmed,
this must considered upon comparison.

Warning!

The UMG508 is not suitable for measu­ring DC voltages.

m

73

UMG 508

Applying measurement current

The UMG508 is designed for the connection of
../1A and ../5A current converters.
Only AC currents, and not DC currents, can be
measured using the current measurement in­puts.

Short-circuit all current converter outputs ex­cept one. Compare the currents displayed by
the UMG508 with the applied current.
The current displayed by the UMG508 must
match the input current under consideration of
the current converter transfer relation.
The UMG508 must display approx. zero am­peres in the short-circuited current measure­ment inputs.

The current converter ratio is set to 5/5A in the
factory and may have to be adapted to the cur­rent converter used.

Warning!
Voltages and currents outside of the
authorized measurement range can
destroy the device.

m

Voltages are shown with long pointers in the
pointer diagram, and currents with shorter
pointers.

Current

Voltage

Sign

Reactive power

• positive (+) with inductive load,

• negative (-) with capacitive load.

Phase angle (U/I)

• positive (+) with capacitive load,

• negative (-) with inductive load.

74

UMG 508

Voltage and current only have

a minor difference in the pha­se.

Voltage and current have a

difference of approximately
180° in the phase.

Pointer diagram, examplel 1

Primarily ohmic load.

Pointer diagram, example 2

Primarily ohmic load.

• The current measurement input is allocated
to the right voltage measurement input.

• In this current measurement, the connections
k and l are swapped over or there is a return
feed into the supplier network.

• The current measurement input is allocated
to the right voltage measurement input.

75

UMG 508

Checking communication

The UMG508 counts all received (RX), all sent
(TX) and all faulty data packages.
In the ideal case, the number of errors shown in
the error column is zero.

Reset

You can delete the counters for the data pa­ckages with key 6.
The start time for the recount is reset.

Checking the power measurement

Short-circuit all current converter outputs ex­cept one and check the displayed power out­puts.
The UMG508 may only display one power out­put in the phase with the current converter input
that is not short-circuited. If this does not apply,
please check the connection of the measure­ment voltage and measurement current.

If the amount of effective power is correct but
the sign of effective power is negative, this may
have two causes:

• Connections S1(k) and S2(l) are mixed up on
the current converter.

• Effective power is returned to the network.

In the pointer diagram, voltages are shown with
the longer pointers and currents with shorter
pointers.

76

UMG 508

Metering range exceedance
(overload)

Metering range exceedances are displayed for
as long as they are present and cannot be ac­knowledged. A metering range is exceeded if
at least one of the four voltage or current mea­suring inputs is outside of its specified meter­ing range.

Limit values for metering range exceedance:
(200 ms rms values):

I = 7.4 Arms
UL-N = 600 Vrms

Display of the metering range exceedance
in the voltage circuit L2 and in the current
circuit of the 4th phase (I4).

77

UMG 508

Device master file

The device master file, abbreviated with GSD
file, describes the Profibus characteristics of the
UMG508. The GSD file is required by the PLC
configuration program.
The device master file for the UMG508 has the
file name "U5080C2C.GSD“ and is contained on
the data carrier supplied with the delivery.

1)
Global variables are variables that are defined by

the user in Jasic and are provided to each interface
in the UMG508.

Profibus profile

A Profibus profile contains data to be exchanged
between a UMG and an SPS. Four Profibus pro­files are pre-configured in the factory.

With a Profibus profile, you can:

• call-up measurement values from the UMG,

• set the digital outputs in the UMG,

• request the status of the digital inputs in the
UMG.

Each Profibus profile can contain a maximum of
127Bytes. You can apply further Profibus profi­les if more data has to be transferred.

• Each Profibus profile has a profile number.
The profile number is sent by the PLC to the
UMG.

• You can directly process 16 Profibus profiles
with GridVis (profile numbers 0..15).

• Additional Profibus profiles (profile numbers

16..255) can be applied using Jasic pro­grams.

• Factory pre-configured Profibus profiles can
be subsequently changed.

Variable definition

All system variables and global variables

1)

can
be scaled individually and converted into one of
the following formats:

• 8, 16, 32Bit integer with and without sign.

• 32 or 64Bit float format.

• Big or Little Endian.

Big-Endian = High Byte before Low Byte.
Little-Endian = Low Byte before High Byte.

78

UMG 508

Illu. Block switch diagram for data exchange between PLC and UMG508.

Example
Collect measurement values using Profibus

You must transfer at least one Profibus profile
with GridVis and transfer it to the UMG508.
A Jasic program is not necessary.

79

UMG 508

Profibus profile number 1

Byte- Values- Scaling
Index Value type format

1 1 Voltage L1-N Float 1
2 5 Voltage L2-N Float 1
3 9 Voltage L3-N Float 1
4 13 Voltage L2-L1 Float 1
5 17 Voltage L3-L2 Float 1
6 21 Voltage L1-L3 Float 1
7 25 Current L1 Float 1
8 29 Current L2 Float 1
9 33 Current L3 Float 1
10 37 Effective power L1 Float 1
11 41 Effective power L2 Float 1
12 45 Effective power L3 Float 1
13 49 Cosphi (math.) L1 Float 1
14 53 Cosphi (math.) L2 Float 1
15 57 Cosphi (math.) L3 Float 1
16 61 Frequency Float 1
17 65 Effective power total L1-L3 Float 1
18 69 Reactive power total L1-L3 Float 1
19 73 Apparent power total L1-L3 Float 1
20 77 Cosphi (math.) total L1-L3 Float 1
21 81 Effective current total L1-L3 Float 1
22 85 Effective consumption total L1-L3 Float 1
23 89 Ind. Reactive consum. total L1-L3 Float 1
24 93 THD voltage L1 Float 1
25 97 THD voltage L2 Float 1
26 101 THD voltage L3 Float 1
27 105 THD current L1 Float 1
28 109 THD current L2 Float 1
29 113 THD current L3 Float 1

Profibus profile number 0

Byte Value Scaling
Index Value type format

1 1 Voltage L1-N float 1
2 5 Voltage L2-N float 1
3 9 Voltage L3-N float 1
4 13 Voltage L4-N float 1
5 17 Voltage L2-L1 float 1
6 21 Voltage L3-L2 float 1
7 25 Voltage L1-L3 float 1
8 29 Current L1 float 1
9 33 Current L2 float 1
10 37 Current L3 float 1
11 41 Current L4 float 1
12 45 Effective power L1 float 1
13 49 Effective power L2 float 1
14 53 Effective power L3 float 1
15 57 Effective power L4 float 1
16 61 Cosphi (math.) L1 float 1
17 65 Cosphi (math.) L2 float 1
18 69 Cosphi (math.) L3 float 1
19 73 Cosphi (math.) L4 float 1
20 77 Frequency float 1
21 81 Effective power total L1-L4 float 1
22 85 Reactive power L1-L4 float 1
23 89 Apparent power total L1-L4 float 1
24 93 Cosphi (math.) total L1-L4 float 1
25 97 Effective current total L1-L4 float 1
26 101 Effective consumption total L1-L4 float 1
27 105 Ind. reactive consum. total L1-L4 float 1
28 109 THD voltage L1 float 1
29 113 THD voltage L2 float 1
30 117 THD voltage L3 float 1

80

UMG 508

Profibus profile number 2 Profibus profile number 3

Byte- Values- Scaling
Index Value type Format

1 1 Effective power L1 Float 1
2 5 Effective power L2 Float 1
3 9 Effective power L3 Float 1
4 13 Effective power total L1-L3 Float 1
5 17 Current L1 Float 1
6 21 Current L2 Float 1
7 25 Current L3 Float 1
8 29 Current total L1-L3 Float 1
9 33 Effective consumption total L1-L3 Float 1
10 37 CosPhi (math.) L1 Float 1
11 41 CosPhi (math.) L2 Float 1
12 45 CosPhi (math.) L3 Float 1
13 49 CosPhi (math.) total L1-L3 Float 1
14 53 Reactive power L1 Float 1
15 53 Reactive power L2 Float 1
16 53 Reactive power L3 Float 1
17 53 Reactive power total L1-L3 Float 1
18 53 Apparent power L1 Float 1
19 53 Apparent power L2 Float 1
20 53 Apparent power L3 Float 1
21 53 Apparent power total L1-L3 Float 1

Byte- Values- Scaling
Index Value type Format

1 1 Effective consumption total L1-L3 Float 1
2 5 Drawn eff. consum. total L1-L3 Float 1
3 9 Supplied eff. consum. total L1-L3 Float 1
4 13 Reactive consumption total L1-L3 Float 1
5 17 Ind. reactive consum. total L1-L3 Float 1
6 21 Cap. reactive consum. total L1-L3 Float 1
7 25 Apparent consumption total L1-L3 Float 1
8 29 Effective consumption L1 Float 1
9 33 Effective consumption L2 Float 1
10 37 Effective consumption L3 Float 1
11 41 Inductive reactive consumption L1 Float 1
12 45 Inductive reactive consumption L2 Float 1
13 49 Inductive reactive consumption L3 Float 1

81

UMG 508

Service and Maintenance

The device is subjected to different safety tests
before delivery and marked with a seal. If a de­vice is opened, the safety tests have to be re­peated. A guarantee is only provided for unope­ned devices.

Repair and Calibration

Repair work and calibration can only be under­taken by the manufacturer.

Front film

Cleaning the front film can be done with a soft
cloth and domestic detergent. Acids and pro­ducts containing acids may not be used for
cleaning.

Battery

The internal clock is fed from the supply voltage.
If the supply voltage fails, the clock is supplied
by the battery. The clock provides the date and
time information, e.g. for recordings, minimum
and maximum values and events.
The expected battery life is at least 5 years at a
storage temperature of +45°C. The typical bat­tery life is 8 to 10 years.
The device must be opened to exchange the
battery. If the device has been opened, a new
safety test is required for safe operation. A gu­arantee is only provided for unopened devices.

Disposal

The UMG508 can be recycled as electronic
scrap in accordance with the legal regulations.
The fixed, integrated lithium battery must be
disposed of separately.

Firmware update

If a firmware update has to be carried out for
your UMG508, you can do this with the GridVis
software included in the delivery.

Service

Should any questions arise that are not descri­bed in this handbook please contact the manu­facturer directly.
We will require the following compulsory details
from you for processing:

-Device name (refer to label),

-Serial number (refer to label),

-Software release (refer to measurement value
display),

-Measurement voltage and supply voltage,

-Precise error description.

82

UMG 508

Possible error

None Display.

None Current dis-
play.

Displayed current is
too high or low.

Displayed voltage is
too low or high

Displayed voltage is
too light.

Cause

External fuse for the supply vol­tage has triggered.

The measurement voltage is not
connected.
The measurement current is not
connected.

Current measurement is in the
wrong phase.
Current converter factor is in­correctly programmed.

Measurement in the wrong pha­se.
Voltage converter is incorrectly
programmed.

Measurement range exceeded.
The voltage peak at the measu­rement input has been excee­ded due to harmonics.

Remedy

Replace fuse.

Connect measurement voltage.

Connect measurement current.

Check connection and correct if
necessary.
Read current converter transfer
ratio on the current converter and
program it.

Check connection and correct if
necessary.
Read voltage converter transfer
ratio on the voltage converter and
program it.

Use a voltage converter.

Warning!It is necessary to make
sure that the measurement inputs
are not overloaded.

Procedure in case of errors

83

UMG 508

Possible errors

Metering range ex­ceedance (overload)

Effective power is
too high or low.

Effective power-

receipt/supply are
mixed up.

Cause

Voltage or current input out
of range (see chapter mete­ring range exceedance)

The programmed current
converter transfer ratio is
wrong.
The current path is allocated
to the wrong voltage path.
The programmed voltage
converter transfer ratio is
wrong.

At least one current conver­ter connection is mixed up.

A current path is allocated to
the wrong voltage path.

Remedy

Check and correct the connection if
necessary.
Use suitable voltage or current trans­formers.

Read and program the current or voltage
transformer ratio on the transformer.

Read and program the current conver­ter transfer ratio on the current conver­ter.
Check the connection and correct if
necessary.

Read and program the current conver­ter transfer ratio on the current conver­ter.

Check and correct the connection if
necessary.

Check and correct the connection if
necessary.

84

UMG 508

Possible errors

No connection to
device.

The device does not
work despite taking
the above measures.

Cause

RS485:

- Wrong device address.

- Different bus speeds

- Wrong protocol.

- Termination is missing.

Ethernet:

- IP address is wrong

Device is defective.

Remedy

Set device address.
Check and correct the speed
(baudrate)
Select protocol.
Connect bus with terminating resistor
(120 Ohm).

Set IP address on the device.

Send the device to the manufacturer to
check with an exact description of the
error.

85

UMG 508

Technical data

The UMG508 is intended for use in a weather-protected, fixed extradata.
The UMG508 must be connected to the protective wire connection! Protection class I according
to IEC 60536 (VDE 0106, part 1).
Calculation temperature range : K55 (-10°C .. +55°C)
Relative air humidity : 0 to 75 % RH
Operating height : 0 .. 2000m above sea level
Impurity level : 2
Installation extradata : any
Ventilation : external ventilation is not required.
Foreign matter and water protection,
Front : IP40 according to EN60529
Reverse side : IP20 according to EN60529

The following details apply to devices transported or stored in the original packaging.
Free fall : 1m
Temperature : K55 (-25°C to +70°C)
Relative air humidity : 0 to 90 % RH

Net weight : 1080g
Device dimensions : approx. l=144mm, w=144mm, h=75mm
Battery : Type VARTA CR1/2AA, 3 V, Li-Mn
Service life of background illumination : 40000h (50% of initial brightness)

General

Transport and storage

Environmental conditions in operation

86

UMG 508

Supply voltage

Connection capacity of terminal points

Connectable conductors. Only one conductor per terminal point may be connected!
Single wire, multi-wire, fine wire : 0.2 - 2.5mm

2, AWG 24 - 12

Pin terminals, ferrules : 0.25 - 2.5mm

2

Tightening torque : 0.5 - 0.6 Nm,
Insulation length : 7mm

Installation overvoltage category : II
Safeguarding of supply voltage
Circuit breaker : 1A Class CC or circuit breaker
1A Char. C (UL/IEC approved)
Option 240V (Art. no. 52.21.011)
Nominal range : 95V - 240V (50 - 60Hz) or DC 80 - 280V
Working range : +/- 10% of nominal range
Power consumption : max. 6W
Option 130V (Art.no. 52.21.012)
Nominal range : 44V - 130V (50 - 60Hz) or DC 48 - 180V
Working range : +/- 10% of nominal range
Power consumption : max. 6W

87

UMG 508

8 digital inputs
Maximum counting frequency : 20Hz
Reaction time (Jasic program) : 200ms
Input signal applied : 18V .. 28V DC (typical 4mA)
Input signal not applied : 0 .. 5V DC, current lower than 0.5mA

5 digital outputs, semi-conductor relay, not short-circuit proof.
Switch voltage : max. 54V DC, 27V AC
Switch current : max. 50mAeff AC/DC
Reaction time (Jasic program) : 200ms
Output of voltage drops : 20ms
Output of voltage excesses : 20ms
Impulse output (power impulse) : max. 20Hz

Line length : up to 30m - not shielded
: larger than 30m - shielded

Inputs and outputs

Connection capacity of terminal points

Rigid/flexible : 0.14 - 1.5mm

2, AWG 28-16

Flexible with ferrules without plastic sleeve : 0.25 - 1.5mm

2

Flexible with ferrules with plastic sleeve : 0.25 - 0.5mm

2

Tightening torque : 0.22 - 0.25Nm
Insulation length : 7mm

88

UMG 508

1)

The UMG508 can only detect measurement values if a voltage L-N larger than 10Veff or a voltage

L-L larger than 18Veff is applied to at least one voltage measurement input.

Measurement inputs

The voltage measuring inputs are suitable for the following grids of power supply:
Three-phase 4 conductor systems L-N/L-L

: 347V/600V

Three-phase 3 conductor systems L-L : 600V

The voltage measuring inputs regarding safety and reliability reasons are dimensioned as follows:
Measurement category : 600V CAT III
Measurement surge voltage : 6kV

Measuring range L-N : 01) .. 600Vrms
Measuring range L-L : 01) .. 1000Vrms
Resolution : 0.01V
Crest factor : 1,6 (relating to 600Vrms)
Impedance : 4MOhm/Phase
Power consumption : ca. 0.1 VA
Scanning frequency : 20kHz/phase
Transients : >50µs
Frequency of fundamental oscillation : 40Hz .. 70Hz
Resolution : 0.001Hz

Voltage measurement

89

UMG 508

Current measurement

Connection capacity of terminal points

Connectable conductor (current measurement and voltage measurement). Only one conductor per
terminal point may be connected!
Single wire, multi-wire, fine wire : 0.2 - 2.5mm

2, AWG 24 - 12

Pin terminals, ferrules : 0.25 - 2.5mm

2

Tightening torque : 0.5 - 0.6Nm
Insulation length : 7mm

Rated current : 5A
Resolution : 0.1mA
Measuring range : 0.001 .. 7.4Arms
Crest factor : 2.4
Measurement category : 300V CAT III
Measurement surge voltage : 4kV
Power consumption : ca. 0.2 VA, (Ri=5mOhm)
Overload for 1 second : 120A (sinusoidal)
Scanning frequency : 20kHz

90

UMG 508

RS485 : plug, SUB D 9-pole
Protocol, Modbus RTU : Modbus RTU/Slave, Modbus RTU/Master
Transfer rate : 9.6kbps, 19.2kbps, 38.4kbps, 57.6kbps,

115.2kbps, 921.6kbps
Protocol, Profibus : Profibus DP/V0 according to EN 50170
Transfer rate : 9.6kBaud to 12MBaud
Protocol, BACnet (option)

Ethernet 10/100Base-TX
Connection : RJ-45
Functions :

Modbus Gateway, Embedded Webserver (HTTP)
Protocols : TCP/IP, EMAIL (SMTP), DHCP-Client (BootP),
Modbus/TCP, Modbus RTU over Ethernet, FTP,
ICMP (Ping), NTP, TFTP. BACnet (Option), SNMP.

Serial interfaces

91

UMG 508

Network quality parameters

Specifications

(Measurement using current converters ../5A)

Function Symbol Accuracy class Measur. range Display range

Frequency f 0.05 (IEC61557-12) 40 .. 70 Hz 40 Hz .. 70 Hz
Phase current I 0.2 (IEC61557-12) 0.001 .. 7.4 Arms 0 A .. 9999 kA
Neutral cond. current measured IN 0.2 (IEC61557-12) 0.001 .. 7.4 Arms 0 A .. 9999 kA
Neutral cond. current calculated INc 0.5 (IEC61557-12) 0.001 .. 22.2 A 0 A .. 9999 kA
Voltage U L-N 0.1 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage U L-L 0.1 (IEC61557-12) 18 .. 1000 Vrms 0 V .. 9999 kV
Short-time flicker, long-time fli. Pst, Plt - - ­Voltage drops (L-N) Udip 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage rises (L-N) Uswl 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage interruptions Uint - - ­Voltage unbalance (L-N)

1)

Unba 0.2 (IEC61557-12) 10 .. 600Vrms 0 V .. 9999 kV

Voltage inbalance (L-N)

2)

Unb 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage harmonics Uh cl. 1 (IEC61000-4-7) to 2.5 kHz 0 % .. 100 %
Current harmonics Ih cl. 1 (IEC61000-4-7) to 2.5 kHz 0 % .. 100 %
Network signal voltage MSV - - -

1) Reference to amplitude.

2) Reference to phase and amplitude.

92

UMG 508

Function parameters

Function Symbol Accuracy class Measurem. range Display range

Total effective power P 0.2

5)

(IEC61557-12) 0 .. 15.3kW 0 W .. 9999 GW
Total reactive power QA, Qv 1 (IEC61557-12) 0 .. 15.3 kvar 0 varh .. 9999 Gvar
Total apparent power SA, Sv 0.25 (IEC61557-12) 0 .. 15.3 kVA 0 VA .. 9999 GVA
Total effective energy Ea 0.2

5)

(IEC61557-12) 0 .. 15.3 kWh 0 Wh .. 9999 GWh
Total reactive energy ErA, ErV 1 (IEC61557-12) 0 .. 15.3 kvarh 0 varh .. 9999 Gvarh
Total apparent energy EapA, EapV 0.25 (IEC61557-12) 0 .. 15.3 kVAh 0 VAh .. 9999 GVAh
Frequency f 0.05 (IEC61557-12) 40 .. 70 Hz 40 Hz .. 70 Hz
Phase current I 0.2 (IEC61557-12) 0.001 .. 7.4 Arms 0 A .. 9999 kA
Neutral cond. current measured IN 0.2 (IEC61557-12) 0,001 .. 7.4 Arms 0 A .. 9999 kA
Neutral cond. current calculated INc 0.5 (IEC61557-12) 0.001 .. 22.2 A 0 A .. 9999 kA
Voltage U L-N 0.1 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage U L-L 0.1 (IEC61557-12) 18 .. 1000 Vrms 0 V .. 9999 kV
Power factor PFA, PFV 0.5 (IEC61557-12) 0.00 .. 1.00 0 .. 1
Short-time flicker, long-time fl. Pst, Plt - - ­Voltage drops Udip 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage rises Uswl 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Transient overvoltages Utr 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage interruptions Uint - - ­Voltage inbalance

1)

Unba 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV

Voltage inbalance

2)

Unb 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage harmonics Uh cl. 1 (IEC61000-4-7) to 2.5 kHz 0 V .. 9999 kV
THD of voltage

3)

THDu 1.0 (IEC61557-12) to 2.5 kHz 0 % .. 999 %
THD of voltage

4)

THD-Ru 1.0 (IEC61557-12) to 2.5 kHz 0 % .. 999 %
Current harmonics Ih cl. 1 (IEC61000-4-7) to 2.5 kHz 0 A .. 9999 kA
THD of current

3)

THDi 1.0 (IEC61557-12) to 2.5 kHz 0 % .. 999 %
THD des Stromes

4)

THD-Ri 1.0 (IEC61557-12) to 2.5 kHz 0 % .. 999 %
Mains signal voltage MSV - - -

1) Reference to amplitude.

2) Reference to phase and amplitude.

3) Reference to basic oscillation.

4) Reference to effective value.

5) Accuracy class 0.2 with ../5A converter.
Accuracy class 0.5 with ../1A converter.

93

UMG 508

Declaration of Conformity

The product fulfils the following EC Directives:

2004/108/EG Electromagnetic compatibility of electrical equipment.

2006/95/EG Electrical equipment for use within certain voltage limits.

Considered standards:

Noise immunity

IEC/EN 61326-1:2013 Class A: Industrial environment
IEC/EN 61000-4-2:2009 Electrostatic discharge
IEC/EN 61000-4-3:2011 Electromagnetic RF Field 80-1000MHz
IEC/EN 61000-4-3:2011, EMV-ILA V01-03 Electromagnetic RF Field 1000-2700MHz
IEC/EN 61000-4-4:2013, EMV-ILA V01-03 Burst
IEC/EN 61000-4-5:2007, EMV-ILA V01-03 Surge
IEC/EN 61000-4-6:2009, EMV-ILA V01-03 Conducted disturbances 0.15-80MHz
IEC/EN 61000-4-8:2010 Power frequency magnetic field
IEC/EN 61000-4-11:2005, EMV-ILA V01-03 Voltage dips, short interrupts, voltage variations and frequency changes

Noise emission

IEC/EN 61326-1:2013 Class B: Residental environment
IEC/CISPR11/EN 55011:2011 Radio disturbance field strength 30-1000MHz
IEC/CISPR11/EN 55011:2011 Radio disturbance voltage 0.15-30MHz
EMV-ILA V01-03 Radio disturbance voltage 9-150kHz
EMV-ILA V01-03 Flicker

Equipment safety
IEC/EN 61010-1:2011 Safety requirements for electrical equipment for Measurement,
UL61010-1:2005 2nd Edition control and laboratory use – Part 1: General requirements
CAN/CSA-C22.2 No. 61010-1:2004 2nd Edition
IEC/EN 61010-2-030:2011 Particular requirements for testing and measuring circuits

94

UMG 508

Dimensioned drawings

Cutout size: 138

+0,8

x 138

+0,8

mm

Reverse side

Patch cable

95

UMG 508

View from belowSide view

96

UMG 508

Configuration

Language, Communication, Measurement, System

Display, Colors, Extensions

...

Other main values

Display

Communication

State

Display

Home

Measurement values

overview)

Display

Voltage L-N

...

(config)

Communication

Ethernet

Feldbus

Measurement

Transformer

Transients

Events

Rated Frequency

System

Information

Password

Re-initialization

Display Colors

U, I

L1...L4

Extensions

Activation

Jasic state

Transformer

Phase L1, L2,

L3, L4

U prim./sec.

I prim./sec.

I rated

U rated

Connection

Transients

Phase L1, L2,

L3, L4

Events

Phase L1, L2,

L3, L4

Re-initialization

Energy

Min/Max values

Delivery state

Reset

Activation

BACnet

EMAX

Jasic state

Modus (abs)

Peak U

Modus (delta)

Trns U

Drop U

Overvoltage

Rapid increase I

Other main values

97

UMG 508

Configuration

(config)

Device name

Overview

Measurement

values

Voltage

L-N

Current

L1..L4

Voltage

L-L

Current

Sum

Auxiliary values

Sum Real

Power L1..L4

(Real Power

L1..L3)

Reactive

Power

(Sum Real Power

L1..L3)

Apparent

Power

(Sum Real Power

L1..L3)

Main values

Apparent Energy

Overview

Active Energy

Overview

(Tariff 1, Tariff 2)

Reactive Energy

Overview

(Tariff 1, Tariff 2)

Measurement value displays overview

98

UMG 508

Main values

Auxiliary values

Reactive Energy

Monthly values

Bar diagram

Apparent Energy

Monthly values

Bar diagram

Active Energy

Monthly values

Bar diagram

Active Power

Curve L1

(L2, L3, L4,

L1..L3, L1..L4)

Reactive Power

Curve L1

(L2, L3, L4,

L1..L3, L1..L4)

Current

Curve

(L2, L3, L4)

Voltage

Curve L1

(L2, L3, L4)

Voltage

Harmonics L1

(L2, L3, L4)

Current

Harmonics L1

(L2, L3, L4)

Transients

1..8

(9..16)

Events

1..8

(9..16)

99

UMG 508

Phasor

Diagram

Main values

Auxiliary values

Communication

State

Oscilloscope

L1

Oscilloscope

L2
L3
L4

Oscilloscope

ULN1..3
ULN1..4

Oscilloscope

IL1..3
IL1..4

100

UMG 508

Connection example

Digital Outputs 1-5 Digital Inputs 5-8

RS485

Modbus/Profibus

Digital Inputs 1-4

DSUB-911 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10

5 4 3 2 1 8 7 6 5 4 3 2 1

UMG 508

Ethernet

10/100Base-TX

RJ45

Auxiliary Supply

N/- L/+

18 17

PE

Current Input 1-4

I

1

19 20 21 22 23 24 25 26

I2 I3 I4

27 28 29 30

Voltage Input 1-4

V

1 V2 V3 V4

Vref

31

L1

N

PE

L1

L2

L3

N

PE

S1

S2

S1

S2

S1

S2

S1

S2

SPS SPS

Switch

PC PC