janitza UMG505 User manual

Universal Measuring Device
UMG505
Operating Instructions
Brief instructions see last page
Doc. No.: 1.023.034.b HW: series 1
Janitza electronics GmbH
Vor dem Polstück 1
D-35633 Lahnau
Support phone [phone]
Fax: [phone]
e-mail: [email protected]
Internet: http://www.janitza.de
Mean value
Indicated phase,
- Phase against N,
- Phase against Phase,
- Sum measurement.
Peak values
Lowest values
Mark for the selected
values for ring buffer
Consumption
Supply
Key 1
Indication of mode
Key 3
Key 2
Current transformer
Harmonic number / Energy
meter
Voltage transformer
Device address

2= Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Table of contents
Generals 5
Receipt control 5
Meaning of symbols 5
Hints for maintenance 5
Product description 6
Intended use 6
Hints for usage 6
Support 6
Functional description 7
Measurement 7
Hints for installation 8
Supply voltage 8
Measuring voltage 8
Measuring current 9
Serial interfaces 12
RS485 (Option) 12
RS232 (Option) 12
LON-Bus (Option) 13
Digital inputs 14
Digital outputs 16
Analogue outputs 17
Putting into service 18
Check all phase power 19
Check sum power 19
Removal of errors 20
Usage and display 22
Measured value indications 23
SELECT Mode 23
Configuration menu CONF 23
Programming menu PRG 23
Mean values 24
Minimum and maximum values 25
Energy measurement 26
Time of deletion 26
Show running time 27
Harmonics 27
Total harmonic distortion THD(f) 27
Partial harmonic content 27
EMAX 28
Real power EMAX 28
Pulse input 28
Target values 28
Monthly EMAX peak values 28
Reset of the measuring period 29
Memory 30
Event memory 30
Ring buffer 31
Ring buffer data format 32
Changeover ring buffer 32
Read ring buffer 32
Programming menu PRG 34
Select menu PRG 34
Delete all min/max values 35
Delete max/min val. individually 35
Delete real and reactive energy 36
Program ring buffer 37
Mean values 37
Reset of measuring period EMAX 37
Averaging time 38
Set averaging times 38
Period of storage 38

3
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Configuration 39
Current transformer 40
Voltage transformer 40
Aron circuit 41
Data logging 42
Serial interfaces 43
RS485 interface (Option) 43
Terminal resistors 43
RS232 interface (Option) 43
Modem 43
Modbus RTU 44
Transmission mode 44
Transmission parameters 44
Realized functions 44
LON interface (Option) 45
Device address 46
Measured value rotation 46
Program changing time 47
Program measured value selection 47
Set event memory 48
Net frequency 49
Limit supervision 50
Switching clock 55
Swich-on and switch-off time 56
Switching clock channel 56
Output channel 56
EMAX target value (Option) 58
EMAX digital outputs (Option) 58
Connection power and connection time 58
Disconnection time 59
EMAX analogue outputs 60
Digital Inputs 62
Digital input 4 62
Changeover of EMAX targ. val. (Option) 64
Activate energy meter 64
Synchronize internal clock 65
EMAX measuring period reset 65
Pulse valence 66
Pulse width 72
Analogue outputs 73
Source, destination and scale 73
Programming 74
Scale 75
Output range 76
LCD contrast 78
Clock 79
Summer-/Winter time changeover 79
Password 80
Clearance password 80
User password 81
Master password 81
Serial number 82
Software Release 82
PSW505 83
PC hardware 83
PC operating system 83
Functions 83
Configure the UMG505 83
Configure measured value indications 83
Read memory 83
Tables 84
Table 1a, Measured values 85
Table 1b, Messwerte 86
Table 2a, Time information 87
Table 2b, Time information 88
Table 3, Mean values 89
Table 4a, measured values 90
Table 4b, measured values 91
Table 4c, maximum values 92
Table 4d, Minimum values 93
Table 5, read energy 94
Table 6, delete energy 94
Table 7, energy 94
Table 8, EMAX-maximum values 94
Table 9, Scale 95
Table 10, Inputs and outputs 96
Table 11, LON variables 98
Measured value indications (Presettings) 100
Configuration data 104
Measured and calculated quantities 107
Indication range and accuracy 107
Technical Data 108
Design for panel mounting 110
Back side 110
Version for DIN rail mounting (Option)
110
Back side 110
Side view 110
Side view 110
Connection example 111
Brief instructions 112
Current transformers 112
Voltage transformer 112
EMAX-target 112

4= Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Issue note
04.06.02 First edition.
26.06.02 Ring buffer data format.
Page 92; Table 7, double.
09.08.02 Total harmonic distortion.
27.09.02 LON-Table.
06.09.03 Page 55, principle diagram.
19.09.05 LON-Table.
All rights reserved. No part of this manual may be
reproduced or duplicated without the written
permission of the author. Any contraventions are
punishable and will be prosecuted with all legal
means.
No liability can be taken for the faultless condition
of the manual or damage caused by the use of it.
As failures cannot be avoided completely, we shall
be very grateful for any advice. We will try to remove
any failures as soon as possible. The mentioned
software and hardware descriptions are registered
trademarks in the most cases and are subjected to
the regulations by law. All registered trademarks are
property of the corresponding companies and are
fully recognized by us.

5
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Generals
Receipt control
In order to ensure a perfect and safe use of the
device, a proper transport, expert storage, erection
and mounting and careful usage and maintenance
are required. When it may be supposed, that a safe
operation is no longer possible, the device has to
be put out of service and be protected against
unintentional putting into service.
A safe operation can no longer be assumed, when
the device
• shows visible damage,
• does not work in spite of intact net supply,
• has been exposed to disadvantageous conditions
for a longer time (e.g. storage out of the allowed
climate without adaption to the room climate, dew
etc.) or transport use (e.g. falling from great height,
even without visible damage).
Please test the contents of delivery for completion,
before starting the installation of the device. All deli-
vered options are listed on the delivery papers.
Attention!
All plugs, which belong to the contents of delivery,
are plugged on the device
The operating instructions also describe some Op-
tions, which do not belong to the contents of
delivery.
Warning of dangerous electrical tension.
This symbol shall warn you about possible
dangers, which can occur while mounting,
putting into service and use of this device.
Connection of protective wire
Ꮨ

Meaning of symbols
The symbols, used in this manual have the following
meaning:
Hints for maintenance
Before delivery the device is tested in various safety
checks and marked with a seal. If the device is
opened, these checks must be repeated.
There is no guarantee for devices, which are
opened out of the manufacturing works.
Repairing and calibration
Repairing and calibration work can be carried out in
the manufacturing works only.
Front foil
The cleaning of the front foil must be done with a
soft cloth using a common cleansing agent. Acid or
acidic agents may not be used for cleaning.
Battery
The life expectance of the battery is 5 years
minimum for a storage temperature of +45°C. The
typical life expectance of the battery is about 8 to 10
years. The battery is plumbed and should be
exchanged in the manufacturing works only.
Waste management
The UMG 503 can be disposed as electronical
waste according to the legal regulations and
recycled. Please note, that the input Lithium battery
must be disposed separately.

6= Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Product description
Intended use
The UMG505 is designed for fix mounting in low and
medium voltage switchgear and for measurement of
voltage, current, power, energy and harmonics etc.
Real and reactive energy can be given out via pulse
signal at the digital outputs. The results of the
measurement can be used for controlling
consumers in energy distributions or energy
generation.
The measurement with the UMG 505 can be carried
out in TN-, TC- and IT-networks. Alternating voltage
(50Hz/60Hz) up to 500VAC against ground and
870VAC outer conductor against outer conductor
can be connected directly to the voltage measuring
inputs. The voltage measuring inputs must be
connected via external fuses 2A (medium time lag)
to the UMG505. Voltage over 500VAC against
ground must be connected via voltage transformers.
The voltage measurement via voltage transformers
can be carried out with two or three voltage
transformers by choice.
To the current measurement input, .../5A or .../1A
current transformers can be connected by choice.
In networks with voltage up to 150VAC against
ground, currents up to 5.2A can be connected
directly to the UMG 505 and be measured.
The connection of the auxiliary voltage, the measu-
rement inputs etc. are on the rear side via all-
insulated plug connectors. The auxiliary voltage
must be connected to the building installation via a
separation (switch or power switch) and a 2...10 A
overload protection.
A protective wire connection is necessary for
operation of the UMG 505.
Attention!
Measurement in systems with pulse load is
not possible, because no continuous scan-
ning of the measuring signals is carried out.
Hints for usage
This device may be put into service and used by
qualified personnel according to the safety regulati-
ons and instructions only. Please mind the additio-
nal legal and safety regulations for the respective
application.
Qualified personnel are persons, familiar with
erection, mounting, putting into service and usage
of the product and having the qualifications such as:
• education or instruction / entitlement to switch,
release, ground or characterize current circuits and
devices according to the standards of safety
techniques.
• education or instruction in the care and usage of
suitable safety equipment according to the
standards of safety techniques.
Support
If questions should occur, which are not described
within this manual, please call us directly.
For the handling of your questions, we need the
following information:
- Device description (see type plate),
- Serial number (see type plate),
- Software release,
- Measurement and auxiliary voltage and
- exact failure description.
We are opened for you:
Mo until Tu 07:00 until 15:00
Fr 07:00 until 12:00
Janitza electronics GmbH
Vor dem Polstück 1
D-35633 Lahnau
Support:
Tel. [phone]
Fax [phone]
e-mail: [email protected]

7
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Functional description
Measurement
The electronical three phase measurement system
determines and digitalizes the effective values of
voltages and currents in 50/60 Hz networks.
Two random test measurements are carried out
each second on all current and voltage measuring
inputs. Signal interruptions, which are longer than
500ms are surely recognized. For each random test
two periods are scanned. The scanning frequency
for a 50Hz signal is 6400Hz. From those sampled
values the microprocessor calculates the electrical
magnitudes.
These measured values are indicated within the
programmable display. Highest values, lowest va-
lues and programming data can be saved in a
battery buffered storage.
Selected measured values will be saved with date
and time in a ring buffer.
Measurement in IT-networks
The UMG505 can be used in IT-networks with outer
conductor voltage up to 500V.
Measurement in networks without N
In networks without N, the voltages are measured
against an artificial neutral point (PE). From the
voltage L-PE, the voltage L-L is calculated.
The phase power in networks without N are used for
the calculation of the sum power only, but have no
further meaning.
Diagr. Drawing UMG505 in IT-networks with N.
2M 2M 2M
PE
UMG505
Voltage
measurement
Supply voltage
Impedance
Ground
2M
L2
L3
N
1n 1n
L1
Diagr. Drawing UMG505 in TN-networks.
2M 2M 2M
PE
UMG505
Voltage
measurement
Supply voltage
Ground
2M
L2
L3
N
1n 1n
L1
PE
500V 50/60Hz
230/400V 50/60Hz
Diagr. Drawing UMG505 in IT-networks without N.
2M 2M 2M
PE
UMG505
Voltage
measurement
Supply voltage
Impedance
Ground
2M
L1
L2
L3
1n 1n
500V 50/60Hz

8= Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Hints for installation
Supply voltage
A supply voltage is necessary for the operation of
the UMG 505. The kind and dimension of the
required supply voltage is noted on the type plate.
The supply voltage is connected to the clamps 14
and 15. Between supply voltage (terminals 14, 15)
and ground (PE) a maximum voltage of 300VAC
may occur.
Higher voltage between supply voltage and ground
(PE) can destroy the UMG505. To avoid
overvoltage, the supply voltage should be earthed.
Measuring voltage
The UMG505 is suitable for measurement of
alternating voltage up to 500VAC against ground
and 870VAC between the outer conductors. The
wiring must be suitable for voltage up to 500VAC
against ground and 870VAC between the outer
conductors as well.
Attention!
The UMG505 is not suitable for measurement
of direct current voltage.
Voltage over 500VAC against ground must
be connected via voltage transformers.
For voltage measurement via two voltage
transformers, the „Aron connection“ must be
set in configuration mode of the UMG 505.
The wires for voltage measurement of the
UMG 505 must be protected by an
overcurrent fuse.
Attention!
- The connection wires of the supply voltage
must be suitable for rated voltage up to
300VAC against ground.
- The supply voltage must be protected by a
fuse. The fuse must be in the range of 4A up
to 10A.
- A switch or power switch for the supply
voltage must be provided within the building
installation.
- The switch must be near the device and
easy to reach by the user.
- The switch must be marked as a separation
for the device.
- Please ensure before connecting the supply
voltage, that voltage and frequency match the
statements on type plate!
- The device may be operated with earthed
housing only!
- Cables with sigle soldered wires cannot the
connected via screw terminals!
- The screw terminals may be plugged in
voltage free condition only.
- Only screw clamps with the same pole
number and the same colour may be
connected.
- The supply voltage for the UMG 505 may
not be taken from voltage transformers.
Switching procedures on medium voltage side
can lead to short duration overvoltage, which
can destroy the supply voltage input of the
UMG 505.
Ꮨ
Ꮨ

9
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Attention!
Current transformers can lead voltage, which
is dangerous to touch and should be earthed.
Current transformers, not loaded at the
secondary, can lead voltage dangerous to
touch and should be short circuited.
Measuring current
The UMG505 is designed for the connection of
current transformes with secondary currents of ../1A
and ../5A. When the device is delivered, a current
transformer of ../5A is set.
Each currrent measurement input can be loaded
with 5,2A over a long period or for 2 seconds with
180A.
Via the current measurement inputs only alternating
current can be measured but no direct current..
Ꮨ

10 = Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Diagr. 1 Medium voltage measurement with three
voltage transformers and three current transformers.
L/L 80 .. 870V AC
L/PEN 50 .. 500V AC 0,005 .. 5A
27 26 25 24 23 22 21 20 19 18 14 15
L1 L2 L3 PE
2A
L1 N
Messung
Mesurement
Hilfs-
spannung
Auxiliary
Voltage
UMG505
k l
k l
k l
../5(1)A
../5(1)A
../5(1)A
10160400
Verbraucher
Consumer
4-
10A
L1
L2
L3
u u u
x x x
X X X
U U U
Diagr. 2 Medium voltage measurement with two
voltage transformers and three current transformers.
L/L 80 .. 870V AC
L/PEN 50 .. 500V AC 0,005 .. 5A
27 26 25 24 23 22 21 20 19 18 14 15
u v PE
2A
L1 N
Messung
Mesurement
Hilfs-
spannung
Auxiliary
Voltage
UMG505
L1
L2
L3
k l
k l
k l
../5(1)A
../5(1)A
../5(1)A
10160410
Verbraucher
Consumer
4-
10A
u v u v
U V U V
Diagr. 4 Medium voltage measurement with two
voltage transformers and two current transformers.
Messung
Measurement
Hilfs-
spannung
Auxiliary
Voltage
UMG505
27 26 25 24 23 22 21 20 19 18 14 15
u v PE
2A
L/L 80 .. 870V AC
L/PEN 50 .. 500V AC 0,005 .. 5A
10160430
u v u v
U V U V
k l
k l
../5(1)A
../5(1)A
Verbraucher
Consumer
4-
10A
Diagr. 3 Medium voltage measurement with three
voltage transformers and two current transformers.
Messung
Measurement
Hilfs-
spannung
Auxiliary
Voltage
UMG505
27 26 25 24 23 22 21 20 19 18 14 15
u1 u2 u3 PE
2A
L1
L2
L3
k l
k l
../5(1)A
../5(1)A
L/L 80 .. 870V AC
L/PEN 50 .. 500V AC 0,005 .. 5A
Verbraucher
Consumer
u u u
x x x
U U U
X X X
10160420
4-
10A

11
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Diagr. 5 Measurement in IT-networks with N .
L/L 80 .. 870V AC
L/PEN 50 .. 500V AC 0,005 .. 5A
27 26 25 24 23 22 21 20 19 18 14 15
L1 L2 L3 N
2A
L1 N
Messung
Mesurement
Hilfs-
spannung
Auxiliary
Voltage
UMG505
L1
L2
L3
N
k l
k l
k l
../5(1)A
../5(1)A
../5(1)A
230V/400V 50Hz
10160990
Verbraucher
Consumer
4-
10A
PE
Diagr. 6 Measurement in IT-Netz without N.
L/L 80 .. 870V AC
L/PEN 50 .. 500V AC 0,005 .. 5A
27 26 25 24 23 22 21 20 19 18 14 15
L1 L2 L3 N
2A
L1 N
Messung
Mesurement
Hilfs-
spannung
Auxiliary
Voltage
UMG505
L1
L2
L3
k l
k l
k l
../5(1)A
../5(1)A
../5(1)A
230V/400V 50Hz
101609100
Verbraucher
Consumer
4-
10A
PE
Diagr. 7 Measurement in TN-networks with three
current transformers.
L/L 80 .. 870V AC
L/PEN 50 .. 500V AC 0,005 .. 5A
27 26 25 24 23 22 21 20 19 18 14 15
L1 L2 L3 N
2A
L1 N
Messung
Mesurement
Hilfs-
spannung
Auxiliary
Voltage
UMG505
L1
L2
L3
N
k l
k l
k l
../5(1)A
../5(1)A
../5(1)A
230V/400V 50Hz
10160440
Verbraucher
Consumer
4-
10A
PE

12 = Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Serial interfaces
RS485 (Option)
Terminal resistors
All devices are connected in bus structure (line). In
a segment, up to 32 participiants can be connected.
At the beginning and at the end of a segment the
cable is terminated with resistors. In the UMG505
these terminal resistors can be activated with
pluggable bridges.
For more than 32 participiants a repeater must be
used (amplifier), to connect the single segments.
Protection
For connections via RS485 interface, a twisted and
protected cable must be used. To reach the required
protection, the shield must be connected to housing
parts at both ends of the cable over a wide surface.
Cable type
Unitronic LI2YCYCTPJ2x2x0,22 (Lapp Kabel)
Cable length
1200m at baudrate 38,4k.
RS232 (Option)
The maximum distance between two devices with
RS232 depends on the used cable and the baud-
rate. The normal distance for a baudrate of 9600
Baud should not exceed 15 up to 30 meters. The
allowed load must be bigger than 3kOhm, The
capacitive load, caused by the transmission cable,
is limited to 2500pF.
Diagr. Connection of two devices with RS232
interface
Terminal resistor
Device with RS485 interface
Diagr. Bus structure with terminal resistors on both
sides.
Converter
RS485/RS232
PSW505
Protocol 01 = MODBUS
UMG505 UMG505
RS232
RS485
RS232 RS485
RS232 RS232
Protocol 02 = Modem
Customer’s software
Modem
RxD TxD on
Modem
RxD TxD on
UMG505
Zero modem cable
Protocol 01 = MODBUS
PSW505
UMG505
RS232 RS232

13
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
LON-Bus (Option)
For the connection of the UMG505 with other LON-
bus devices a FTT10-transceiver is used within the
UMG 505. Hence, the bus is safed against change
of polarity and can be connected at one or two
sides. Devices, that use a FTT10 -transceiver, can
be connected to each other via line, star or ring
structures.
If the allowed transmission impedance is reached
within a structure, the network can be enlarged by
using repeaters or routers.
Free wiring
For free wiring and bus connection at one end, the
maximum cable length may be 500m, and the
maximum distance between two devices may be
400m.
Bus wiring
For bus wiring and connection at both sides, the to-
tal cable length may be 2700m at maximum. The
UMG 505 does not have a connectable terminal
resistor for LON-bus.
Allowed cable length
Depending on the selected structure of the network
and the chosen cable type, different transmission
distances can be achieved.
Diagr. Free structure
Diagr. Bus structure with terminal resistors at both
ends.
Termination or central feeding
Device with LON bus
Terminal resistor
Cable type Length
TIA 568A Category 5 < 900m
Belden 85102, 16AWG < 2700m
Belden 8471 < 2700m
Level IV, 22AWG < 1400m
JY (St) Y 2x2x0.8, 20AWG < 900m
Diagr. Maximum distance for bus wiring.
Diagr. Maximum length at free wiring.
Length
Cable type Total device - device
TIA 568A Category 5 500m < 250m
Belden 85102, 16AWG 500m < 500m
Belden 8471 500m < 400m
UL Level IV, 22AWG 500m < 400m
JY(St)Y 2x2x0.8, 20AWG 500m < 320m
Diagr. Connection LON-Bus
UMG505
LON-Bus
FTT-10A
GND
LON Bus
1
2

14 = Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Digital inputs
The UMG 505 has four digital inputs, to which signal
senders can be connected.
Digital Input 1
Digital Input 2 + 3
Digital Input 4
The inputs are separated by optical couplings and
have different electrical properties. Only input 1 can
operate with direct or alternating current voltage
signals. Input 4 can be used as pulse input for real
energy measurement as well.
Voltage version 2
For UMG's, which are driven with a supply voltage
of "15 .. 55VAC, 20 .. 80VDC" (Option), the
Digital
Input 1
can be activated with an
alternating current voltage of 15 .. 55VAC or
direct current voltage of 20 .. 80VDC .
Voltage version 3
For UMG's, which are driven with a supply voltage
of "40 .. 115AC, 55 .. 165VDC" (Option), the
Digital
Input 1
can be activated with an
alternating current voltage of 40 .. 115VAC or
direct current voltage of 55 .. 165VDC .
Diagr.: Digital Input 1 only for alternating current
voltage.
17
16
Digital
Input 1
AC
UMG505
Digital inputs
85..265VAC
Diagr.: Digital Input 1 for direct or alternating
current voltage.
17
16
Digital
Input 1
UMG505
Digital inputs
15k
AC/
DC
40..115VAC
55..165VDC
Digital Input 1
The operating voltage for
Digital Input 1 depends on
the allowed supply voltage of the UMG 505.
Voltage version 1
In the standard version, the UMG 505 is driven with
the supply voltage of "85 .. 265VAC, 120 ..
370VDC". In this case, the
Digital Input 1 is
activated with alternating current voltage of 85 ..
265VAC .
17
16
Digital
Input 1
UMG505
Digital inputs
6,8k
Diagr.: Digital Input 1 for direct or alternating
current voltage.
AC/
DC
15..55VAC
20..80VDC
Input 1-4
5
4
3
Digital
Input 3
Digital
Input 2
5,1 k
5,1 k
17
16
Digital
Input 1
7
7
Digital
Input 4
ZMM 3V9
1,5 k
4k
UMG505
Digital inputs
Diagr.: Internal circuit of the digital inputs.

15
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Digital Input 4
Input 4 can be used as a pulse input according to
DIN EN62053-31 or as digital input. For the
operation, an external supply voltage of 20..30V DC
is required.
Digital Input 2 and 3
Both inputs Digital Input 2 and 3 can be controlled
by a direct current voltage signal. For the operation,
an external supply voltage of 20..30V DC is required.
UMG505
Digital inputs
+
-
Diagr.:Connection proposal; Digital Input 4 as pul-
se input.
7
6
Digital
Input 4
ZMM 3V9
1,5 k
4k
Pulse
generator
DC 24V
Diagr.: Connection proposal; Digital Input 2 and 3
with external supply voltage.
5
4
3
Digital
Input 3
Digital
Input 2
5,1 k
5,1 k
UMG505
Digital inputs
DC
+
-
S1
S2
24V

16 = Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Digital outputs
The UMG505 has 5 transistor switching outputs.
These outputs are separated from the evaluation
electronics via optical couplings. The collectors of
the transistors are connected together with plus po-
tential (terminal 36).
+24V=
36
35
34
33
32
31
Digital
Output 5
Digital
Output 4
Digital
Output 3
Digital
Output 2
Digital
Output 1
UMG505
Digital outputs
K1 K2
Diagr Connection of two relays to the digital outputs.
+-
230V AC
24V DC
External
Supply

17
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Analogue outputs
The UMG505 has 4 analogue outputs. Each
analogue output can transmit a current of 0-20mA
or 4-20mA. For the operation, an external net supply
of 24VDC is required.
L+
M
Diagr. Connection of the analogue outputs to a PLC.
+
+-
+24V=
0V 12
10
9
8
13
11
0/4 - 20mA
0/4 - 20mA
0/4 - 20mA
0/4 - 20mA
22 Ohm
Analogue output
4
Analogue output
3
Analogue output
2
Analogue output
1
UMG505
Analogue Outputs PLC
Analogue inputs
M+
M+
M+
M+
M-
M-
M-
M-
+
+
+
-
-
230V AC
24V DC
External
supply
Diagr. Connection of an analogue output to an
analogue printer.
+24V=
0V 12
10
9
8
13
11
0/4 - 20mA
0/4 - 20mA
0/4 - 20mA
0/4 - 20mA
22 Ohm
Analogue output
4
Analogue output
3
Analogue output
2
Analogue output
1
+
+
-
UMG505
Analogue outputs
Analogue
printer
+-
External
supply
230V AC
24V DC
360 Ohm

18 = Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Ꮨ
Ꮨ
Putting into service
The device should be put into service as follows:
1. Install the device.
The UMG505 is suitable for panel mounting in low
voltage switchgear, in which overvoltage in
overvoltage class III can appear at maxi-
mum.
Any mounting position is allowed.
To ensure safety and functionality of the UMG 505,
a protective wire connection is absolutely
necessary.
2. Connect supply voltage Uh .
The size of the supply voltage Uh for the UMG505
must match the description on type plate. If
supply voltage for alternating current voltage
AC and for direct current voltage DC are
given on type plate, the UMG505 can be
operated with one of these supply voltage by choice.
Connected supply voltage, which do not match the
type plate, can lead to malfunction or damage of the
device.
Between the inputs of the supply voltage Uh
(terminals 14,15) and ground (PE), a maximum
voltage of 300VAC may be attached. Higher voltage
between supply voltage and ground (PE) can dama-
ge the UMG 505.
To avoid overvoltage at supply voltage input, the
supply voltage should be earthed.
The cables for the supply voltage must be suitable
for rated voltage up to 300VAC against ground.
3. Program current and voltage
transformers
Ꮨ
4. Connect measurement voltage.
The UMG505 is suitable for the measure-
ment of voltage up to 500VAC against
ground and 870VAC phase to phase.
The UMG505 is not suitable for the measu-
rement of direct current voltage. Voltage over
500VAC against ground must be connected via
voltage transformers.
For voltage measurement with two voltage transfor-
mers, „Aron Circuit“ must be entered within the con-
figuration of the UMG 505.
After the connection of the measurement voltage,
the indicated values for voltage L-N and L-L must
match the ones at measurement voltage input. If a
voltage transformer ratio is programmed, it has to
be respected during this comparison.

19
= Key1 = Key 2 = Key 3 = Max. value or consumption = Min. value or supply
Ꮨ
5. Connect measurement current.
The UMG505 is designed for the connection
of ../1A and ../5A current transformers.
When the device is delivered, a current
transformer of ../5A is set.
Each current measurement input can be loaded with
5.2A for long duration or 180A for two seconds.
Over the current measuring inputs only alternating
current, but no direct current can be measured.
None earthed transformer clamps can be dangerous
to touch. Current transformers, which are not loaded
on the secondary can lead voltage dangerous to
touch and should be short circuited.
The current measurement inputs should be con-
nected one after the other. Please compare the
current indicated by UMG 505 with the attached
current.
If the current transformer is short circuited, the UMG
505 must show zero A in the corresponding outer
conductor.
The current indicated by UMG505 must match the
input current respecting the set current transformer.
6. Check measurement.
If all voltage and current inputs have been
connected correctly, the phase and sum power is
calculated and indicated correctly.
Check all phase power
If a current transformer is assigned to the wrong
outer conductor, the corresponding phase power is
indicated incorrectly.
The assignment of the outer conductor to current
transformer is correct, if no voltage between the
outer conductor and the corresponding current
transformer (primary) appears.
To ensure, that an outer conductor at voltage
measurement input is assigned to the right current
transformer, the corresponding current transformer
can be short circuited on the secondary. The
apparent power, indicated by UMG 505 must be
zero in this phase.
If the apparent power is displayed correctly, but the
real power shows a „-“ sign, the current transformer
clamps are exchanged or power is supplied to the
energy supplier’ network.
Check sum power
If all voltage, current and power are displayed
correctly for the corresponding outer conductors, the
sum values must be correct as well. This can be
confirmed by comparing the measured sum power
with the energy, measured by the KW meter in the
distribution.

20 = Key1 = Key 2 = Key 3
= Max. value or consumption = Min. value or supply
Faults Possible reason Remedy
Indication dark External prefuse has released. Replace prefuse.
Internal prefuse has released. The fuse cannot be changed by the user. Please
send the device back to the manufacturing works.
Contrast setting too dark. Change contrast settings in configuration menu.
Device faulty. Please send the device to the manufacturer for
repair.
Bad legible display Contrast setting too dark Set contrast in configuration menu.
No current indication Measurement voltage not Connect measurement voltage.
connected
Current too small Current measurement in the Check and correct connection.
wrong phase.
Current transformer factor Read current transformer ratio on current transf.
programmed incorrectly. and program correctly.
Wrong current Current measurement in the Check and correct connection.
wrong phase.
Current transformer factor Read current transformer ratio on current transf.
programmed incorrectly. and program correctly.
Measuring range exceeded. Install bigger current transformer.
The peak current value on Install bigger current transformer.
meas. input was exceeded
caused by harmonics. Attention: Please ensure, that the measuring
inputs are not overloaded.
The current on measuring Install smaller current transformer.
input was underscored.
Voltage L-N too small Measurement in wrong phase. Check and correct connection.
Voltage transformer factor Read current transformer ratio on current
programmed incorrectly. transformer and program correctly.
If the voltage is not measured via voltage transf.
please program a voltage transf. ratio of 400/400.
Voltage on measuring input Install smaller voltage transformer.
out of measuring range.
Voltage L-N incorrect Measurement in wrong phase. Check and correct connection.
Voltage transformer factor Read current transformer ratio on current
programmed incorrectly. transformer and program correctly.
If the voltage is not measured via voltage transf.
please program a voltage transformer ratio of
400/400.
Measured range exceeded. Install bigger current transformer.
The peak voltage value on Install bigger current transformer.
meas. input was exceeded
caused by harmonics. Attention: Please ensure, that the measuring
inputs are not overloaded.
Voltage L-L too small/ Outer conductors exchanged. Check and correct connection.
too big N not connected. Check and correct connection.
Phase shift ind /cap too Current path is assigned to Check and correct connection.
small or big the wrong voltage path.
Program. data get lost Battery empty. Please send device to the manufacturer for
exchanging the battery.
The device has been exposed External protection measure such as shielding,
to electromagnetical interfer. filtering, earthing or spatial separation.
bigger than the allowed by.
Removal of errors