PQ Plus UMD 807 E User manual

Operating Manual for
UMD 807
Firmware 2.0

Short Manual | UMD 807 2
Inhaltsverzeichnis
Installation........................................................................................................ 3
1.1 Physical....................................................................................................................................3
1.2 Instrument Connection..............................................................................................................3
1.1.1 Power Supply...................................................................................................................... 3
1.1.2 Measured Voltages.............................................................................................................. 3
1.1.3 Measured Currents.............................................................................................................. 3
Commissioning................................................................................................ 4
2.1 Setup .......................................................................................................................................4
2.1.1 Measured Electrical Quantities Installation Setup................................................................. 4
Detailed Description........................................................................................ 5
3.1 Basic Functions........................................................................................................................5
3.2 Manipulation and Setting ..........................................................................................................5
3.2.1 Data Area – Status Bar - Toolbar......................................................................................... 6
3.2.2 Main Menu .......................................................................................................................... 6
Inputs & Outputs............................................................................................ 12
4.1 Connection of the I/O..............................................................................................................12
4.1.1 RI1 Digital Input Connection .............................................................................................. 12
4.1.2 RO1÷RO4 Digital Outputs Connection............................................................................... 12
4.1.3 DI2÷DI5 (12÷24 VDC) Digital Inputs Connection................................................................ 12
4.1.4 DO5÷DO8 (12÷24 VDC) Digital Outputs Connection.......................................................... 13
4.1.5 AAI1, AI2 Analog Inputs Connection.................................................................................. 13
4.1.6 AO1, AO2 Analog Outputs Connection.............................................................................. 13
4.1.7 Embedded 12 VDC Auxiliary Power Supply....................................................................... 13
4.1.8 External Temperature Sensor Connection ......................................................................... 14
Communication Links................................................................................... 14
5.1 Local Communication Link......................................................................................................14
5.2 Remote Communication Links................................................................................................14
5.2.1 RS-485 Interface (COM).................................................................................................... 14
5.2.2 Ethernet Interface (ETH).................................................................................................... 14
Examples of Connections............................................................................. 15
Technical Specifications............................................................................... 19
Maintenance, Service.................................................................................... 23

Short Manual | UMD 807 3
Installation
1.1 Physical
The instrument is built in a plastic box to be installed in a distribution board panel. The instrument’s position must be fixed with
locks.
Natural air circulation should be provided inside the distribution board cabinet, and in the instrument’s neighbourhood, especially
underneath the instrument, no other instrumentation that is source of heat should be installed.
1.1
1.2 Instrument Connection
1.1.1 Power Supply
The instrument requires an AC or DC voltage power supply as specified in technical parameters. The supply inputs are
separated from other circuits of the instrument.
It is necessary to connect an auxiliary supply voltage in the range as declared in technical specifications table to the terminals
AV1 (No. 9, L) and AV2 (No.10, N). In case of DC supply voltage the polarity of connection is generally free, but for maximum
electromagnetic compatibility the grounded pole should be connected to the terminal AV2.
The supply voltage must be connected via a disconnecting device (switch - see installation diagram). It must be situated directly
at the instrument and must be easily accessible by the operator. The disconnecting device must be labelled as the
disconnecting device of the equipment. A C-character double circuit breaker at the nominal value of 1A may be used for the
disconnecting device; however its function and position must be clearly marked (symbols „O" and „I" according to EN 61010 –
1). If one of the supply signals is neutral wire N (or PEN) usually a single breaker in the line branch is sufficient. If a switch and
fuse is used, the T1A (delayed) type is recommended.
1.1.2 Measured Voltages
Connect measured voltages in wye (star), delta or Aron configuration to terminals VOLTAGE / N (No. 11), U1 (No. 12), U2
(No. 13), and U3 (No. 14). The Nterminal stays free at delta and Aron connections.
Phase rotating direction is free.
Types of connections are stated in the following table.
It is advisable to protect the supply leads by 1A safety fuses (F1A type, for example).
The type of voltage and currents connection must be entered in Installation parameters : the code shows the amount of
connected phases, 3Y means three-phase connection in wye (star), 3D in delta. 3A means Aron connection. For setup 1Y the
instrument measures phase L1 only and 3-phase values are simulated.
Tab. 2.1: Connection of the measured voltages – VOLTAGE group of terminals
Terminal Type of connection
VOLTAGE wye-star (Y) wye-star (Y) wye-star (Y)
U1L1-phase voltage L1-phase voltage L1-phase voltage
U2L2-phase voltage L2-phase voltage L2-phase voltage
U3L3-phase voltage L3-phase voltage L3-phase voltage
UNneutral wire voltage neutral wire voltage neutral wire voltage
In the case of indirect connection via the measuring voltage transformers, it is necessary to enter this matter (connection Mode)
and the values of the VT ratios during the setup of the instrument.
The maximum cross section of the conductors to the terminal panels is 2.5 mm2.
1.1.3 Measured Currents
The instruments are designed for indirect current measurement via external CTs only. Proper current signal polarity (S1 & S2
terminals) must be observed. You can check the polarity by the sign of phase active powers on the instrument display (in case
of energy transfer direction is known, of course). The CT-ratio must be set. in the Installation group of parameters (see below).
The I2 terminals stay free in case of the Aron (A) connection.
To get better precision when using overweighted CTs, you can apply more windings of measured wire through the
transformer. Then you must set the multiplier parameter (see below). For standard connection with 1 winding, the
multiplier must be set to 1.
The current signals from 5A or 1A (or 0.1A for the „X/100mA“ models) instrument current transformers must be connected to the
CURRENT connector terminal pairs I11 – I12, I21 – I22, I31 – I32 (No. 1 ÷ 6).
A particular connector is provided with a screw lock to prevent an accidental pullout and possible unwanted disconnection of the
current circuit.
A connection cable maximum cross section area is 2.5 mm2.

Short Manual | UMD 807 4
Commissioning
2.1 Setup
When switching on the power supply, the instrument will display manufacturer's logo for short time and after that, one of actual
data screen - for example the line-to-neutral voltages one - is displayed :
At this moment it is necessary to set instrument parameters that are essential for proper instrument measurement (so called
Installation group):
·mode of connection (direct measuring or via metering voltage transformers)
·type of connection (star, delta, Aron)
·ratio of Cts, VTs and their multipliers (if used)
·nominal voltage UNOM and nominal frequency fNOM
·INOM,PNOM (not mandatory, but recommended)
2.
2.1
2.1.1 Measured Electrical Quantities Installation Setup
For the proper data evaluation it is necessary to set all of the Installation Setting group parameters.
·Connection Mode determines if voltage signals are connected directly or if voltage transformers are used.
·Connection Type needs to be set according network configuration – wye (or star, Y) or delta (D, if neutral voltage
potential not connected). Usually, all of three phases are connected so choose 3-Y or 3-D. For Aron connection set 3-
A. For single-phase connection, set 1-Y.
·CT- ratios must be specified, in case of “via VT” connection mode VT-ratios too.
·The VT-ratios must be set in form Nominal primary voltage / Nominal secondary voltage . For higher primary voltage
values the U-multiplier must be used too.
·CT ratios can be set in form either …/ 5A or …/ 1A.
·I- and U-Multiplier - You can modify the CT- / VT-ratio with this parameter. For example, to get better precision when
using overweighted CTs, you can apply more windings of measured wire through the transformer. Then you must set
the multiplier. For example, for 2 windings applied, set the multiplier to 1/2 = 0.5.
·For standard connection with 1 winding, the multiplier must be set to 1.
·Nominal Frequency fNOM - the parameter must be set in compliance with the measurement network nominal
frequency to either 50 or 60 Hz, optionally to „DC-500“ (= Fixscan mode).
·Nominal Voltage UNOM, Nominal Current INOM, Nominal Power PNOM - For the presentation of quantities in percent
of nominal value, alarms operation, voltage events detection and other functions it is necessary to enter also the
nominal (primary) voltage UNOM, nominal current INOM and nominal apparent three-phase power (input power) of the
connected load PNOM (in units of kVA) Although the correct setup has no effect on measuring operation of the
instrument, it is strongly recommended to set at least the UNOM correctly.
Correct setting of the INOM and the PNOM is not critical, it influences percentage representation of powers and currents and
statistical processing of measuring in the software only. If measured network node rating is not defined, we recommend to set
their values, for example, to the nominal power of source transformer or to the maximum supposed power estimated according
current transformers ratio, etc.
The UNOM is displayed in form of phase/line voltage.

Short Manual | UMD 807 5
Setup Example
Following example explains how to adjust the CT ratio:
Assuming that the conversion of used CT for inputs of current L1 to L3 is 750/5 A. To edit the parameters, press the
button, navigate to the Menu-Settings with the buttons ►and ◄and then choose it with the übutton. In the Setting window
choose Setting-Installation option. The Setting-Installation window appears:
In the window navigate down to the current transformer ratio parameter (CT) and choose with the übutton.
Now you can type new value of the parameter : with the ►button you can move from a digit to another one and to set each digit
to target value using the ▲and ▼buttons. At the end press the übutton and the parameter is set.
You can set other parameters in the same way.
After all of the parameters correctly set, return back to the power factor control screen with the (escape) button and
confirm saving of changes with the ü-button.
Now you can browse through displayed actual values in the right part of the screen with ▲and ▼buttons and check if they
correspond with reality.
For proper CT connection checking, you can use phasor diagram screen.
After measured quantities checked, other parameters (of RTC, averaging, remote communication etc.) can be set .
Detailed Description
3.1 Basic Functions
The instruments evaluate all of usual electric quantities like line-to-line and phase voltages, currents, active, reactive and
apparent powers, power factors, voltage and current THDs and harmonic components, active and reactive energy, average
power maximums, frequency etc. Furthermore, temperature is measured with built-in sensor. Optionally, the second
temperature can be measured with an external Pt100 sensor at appropriate instrument models.
The instruments are fitted with inputs for connection of three voltage signals, three current signals (for connection of external
CTs with either 5/1 AAC or 0.1 AAC nominal secondary signal) and separate AC/DC power supply input. They can be used in
both low and high voltage power grids.
The instruments feature three-rate tariff electricity meter with four-quadrant counters for both active and reactive energies and
maximum average active power (maximum demand) registration. Advanced models store all results for actual and last month
too and a separate archive dedicated for automated meter readings can record actual status in preselected intervals.
The instruments are equipped with battery backuped real-time circuit (RTC) and high capacity „Flash" type memory for
measured data and events recording.
The USB 2.0 communication link can be used for the instrument adjusting and recorded data transfer. For remote access,
optional RS-485 or Ethernet communication interface is available. The instruments with Ethernet interface have embedded
webserver.
Basic specifications of the instrument can be set up by using the inbuilt keyboard and the display. With the ENVIS program
supplied as standard you can, via any of communication link, adjust the instrument and transfer recorded data. In addition to the
instrument adjustment, ENVIS program allows you to display, view and archive the measured courses in the graphic form, as
well as a number of other features.
3.2 Manipulation and Setting
3.
3.1
3.2

Short Manual | UMD 807 6
3.2.1 Data Area – Status Bar - Toolbar
Instrument's screen consists of two parts : a data area and a status bar / toolbar area.
After instrument's startup the status bar appears below data area as default. The status bar contains following information:
·… A1 and A2 alarm lights. After the bell icon, two targets represent actual state of the lights; the first one –
A1 – is switched off on the example, the A2 is just switched on. This information appears only when either A1 or A2
function is set in the I/O management setup (see below).
·… local time (hours : minutes)
·As soon as any button is pressed, a toolbar replaces the status bar. The toolbar determines function of individual
buttons and changes dynamically by a context. If no manipulation with buttons for a longer period the toolbar is
replaced with the status bar.
·In special cases a flashing indicator can appear at upper right corner of the data area. It indicates following cases :
·… Frequency measurement not yet finished or out of range. In such cases measured signals are scanned
according preset nominal frequency fNOM and measured values can be incorrect. Check fNOM parameter setting.
·… At least one of voltage or current input overloadedt
·… Remote communication in progress. This indicator is suppressed approx. 10 seconds after any button pushing.
3.2.2 Main Menu
By pressing the button, a Main menu window appears. With the ►and ◄buttons you can
browse through the menu and select a desired action with the übutton or return back using the
(escape) button.
Although all other buttons but the button are context dependent and variable, the
button is accessible from nearly every window which helps to quick orientation. Excluding the PFC
block icon, the menu options consist of:
·Actual data group (all of measured data in both numeric and graphic form)
·Daily and weekly graphs of main quantities
·Electricity meter data group (electric energy and maximum demand values)
·Instrument setting (presetable parameters)
·Instrument lock
·Information (instrument type & serial number, memory usage state etc.)
3.2.1
3.2.2
Fig
. 4.1:
Data Area,
Data Area, Status Bar, Toolbar
data area
Indicator
status bar
toolbar
alarm lights A1, A2
Fig. 4.2: Main Menu

Short Manual | UMD 807 7
Actual Data Group
Actual values in numeric form appear when Actual data group is selected as default. Navigation through the actual
values branch is intuitive using the navigation buttons. For detailed description of the actual values presentation see
chapter Display Actual Values Evaluation and Aggregation further below.
All the values are identified with a quantity name and a quantity unit. An U/I/P/Q summary window is an exception – the quantity
unit is not displayed (only a k/ M/Gmultiplier is). At the last column, which is marked 3p , values of following quantities are
displayed :
Tab. 4.1: Summary Window 3p Column Quantities
row
3p column
quantity
ULL unbU- voltage unbalance
U
LN
-
I
Σ
I
-
I1+I2+I3
PF
3PF
–
three
-
phase power factor
P
3P
–
three
-
phase active power
Q
3Q
–
three
-
phase reactive power
row
3p column
quantity
Fig. 4.3: Actual Data SummaryWindow
Fig.
4
.4 : MeterActual DataNavigation Chart

Short Manual | UMD 807 8
The actual data group comprises other actual data presentations that are accessible with the
button - so called actual data display mode switch . When pressed, a pull up menu rolls over the
display temporary. By multiple pressing of the button a desired actual data subgroup can be selected
and displayed:
·Actual values – values of all measured quantities in numeric format.
·Average values – average values of main measured quantities including their maximums &
minimums. For detailed description see chapter Display Average Values Evaluation and Aggregation further below.
·Waveforms – actual wave shapes of all measured voltages and currents.
·Harmonics – actual harmonic components of all voltage and current signals in both numeric and
graphic (histogram) formats. For detailed description see chapter Harmonics and THD Presentation.
·Phasors – diagrams of voltage and current fundamental harmonic phasors. A phase sequence can
be checked here too (indicated as 1-2-3 or 1-3-2).
With the last option of the display mode switch – V,A,W↔%– voltage, current and power quantities expression can
be switched between basic units and percent relative to preset nominal voltage UNOM and nominal power PNOM .
Daily and Weekly Graphs
This option is supported by instrument models equipped with RTC & additional memory only.
A one-week history of main measured quantities (such as voltages, currents, powers and power
factors) is registered in the instrument's memory cyclic buffer. Individual courses can be displayed for
rough check (for detailed check at a PC a main archive is intended, see appropriate chapters further
below).
With the button, either whole week or specified day of the passed week can be selected – on the
graph, the day is identified with its shortcut (Mo = Monday, for example).
With the ►button desired group of quantities can be selected. For listing through the selected group,
use the ▲and ▼buttons.
1.
2.
3.
3.1
3.2
3.2.1
3.2.2
3.2.2.1
3.2.2.2
Fig. 4.5: Actual Data Display Mode Switch
Fig. 4.6: WeeklyGraph, Daily Graph

Short Manual | UMD 807 9
Electricity Meter Data Group
The electricity meter group comprises registered electric energy and maximum active power demand values. For
detailed explanation see chapter Energy Data Presentation in the Operating Manual.
Instrument Setting
In dieser Gruppe können die meisten voreinstellbaren Parameter angezeigt und bearbeitet werden. Auf andere
Parameter kann ausschließlich über die Kommunikationsanschlüsse von einem PC zugegriffen werden, auf dem das
EnVis-Programm installiert ist.
Wenn ein Einstellungsbildschirm angezeigt wird, schaltet das Messgerät automatisch auf den Ist-Datenbildschirm zurück, wenn
innerhalb von ca. 1 Minute keine Eingaben über die Schaltflächen erfolgt sind.
In den folgenden Kapiteln wird die Bedeutung der einzelnen Parametergruppen erläutert.
Display Setting
•Contrast … LCD display contrast in range 0÷100 %
Backlight … LCD display backlight can be set as permanently on (on) or to auto-off mode (auto), in which it is
switched off automatically during approx. 2 minutes if no button is pressed to decrease the instrument power
dissipation.
•Language … Except the basic English version, other national versions can be selected
Display refresh cycle … Actual values refresh period. For details see chapter Display Actual Values Evaluation and
Aggregation in the Operating Manual.
Display Resolution … Actual data format can be set to 3 or 4 significant figures (exception : not applicable for
electric energy values).
Installation Setting
All parameters of this group are explained in chapter Measured Electrical Quantities Installation Setup. above (the
Commissioning part).
Clock Setting
This setting is relevant for instrument models equipped with a real time circuit (RTC).
•Date &Time … Local date and time.
Time Zone … The time zone should be set according location of an instrument during installation. Correct setting is
essential for proper local time interpretation.
•Daylight Saving … This option controls automatic winter/summer local time switching.
Time Synchronization … As the built-in real time circuit has limited accuracy while free running, with this option it is
possible to keep the RTC time in synchronism with an external precise time source. The RTC can be synchronized by:
◦Pulse Per Second / Minute (PPS / PPM) …A digital inputis usedfor timesynchronization from anexternal sourceat this case.
The instrument sets the RTC to the nearest second or minute as soon as a synchronization pulse is detected. Second-, Minute-,
quarter-hour- or hour- synchronization pulses are accepted.
◦NMEA Message ...If an instrument is equipped with the RS-232 or RS-485 remote communication interface an external (usually
GPS-based) time receiver can be connected to.The receivermust be settotransmitthe “ZDA”- or “RMC ”-message (NMEA0183
protocol). Thecommunication interface must be set appropriately (usually 4800 Bd, 8 bits, 1 stopbit).
◦NTP Server ...The option can be used if an instrument is equipped with the Ethernet communication link and a NTP-server is
available in the network.
◦Network Frequency … For this option, the nominal frequency fNOM parameter mustbe set properly. Otherwise the synchronization
will not work.
Warning : When editing clock parameters, it must be taken into account that internal data archives are affected : when
changing the date or time, all archives are cleared!
Average Values Processing Setting
In this parameter group average values processing for both of U/I -group and P/Q/S -group of measured quantities
can be set. Detailed explanation can be found in the chapter Average Values Evaluation further below.

Short Manual | UMD 807 10
Remote Communication Setting
Communication parameters for various interface types differ from each other:
COM (RS-485) interface:
•Communication Address
•Communication Rate …Communication ratein Bauds (Bd).
•Data Bits … Set to 8for KMB protocol; when parity bit isused (Modbus, usually)set to 9
•Parity … Set to8 for KMB protocol; forModbus, usually setto 9
•Stop Bits …Set (usually) to1
Ethernet-interface:
•DHCP... activation of dynamic IP-address allocation.
•IP Address …Internet protocol address.
•Subnet Mask …Subnet mask.
•Default Gateway …Default gateway.
•KMB-port … Communication port used for KMB protocol communication.
•Web-port … Communication port used for webserver communication.
•Modbus-port … Communication port used for Modbus protocol communication.
Embedded Electricity Meter Setting
In this group parameters concerning electric energy registration and maximum active power demand processing can
be set. For detailed parameter description see full-scale Operating Manual.
Instrument Lock
Three levels of locking to allow protection against unauthorized access are implemented. The active protection level
is symbolized in the main menu by three different states of the Lock icon:
•Unlocked – anyone with physical access to the instrument can freely set-up and configure all parameters
in the instrument, clear archives and other persistent data or reset counters. In this state anyone can also lock the
instrument.
•User Locked – fixed user password (PIN) is required if the instrument configuration is changed or there is
a request to clear any of the data.
•Admin Locked – user defined admin password (PIN) is required if the instrument configuration is changed
or there is a request to clear any of the data.
Locking
If the instrument is unlocked, you can lock it to either user or admin mode. To lock the instrument into the user locked mode,
simply switch in the Menu-Lock window the lock from ûto ü. Then escape from the window with the button and
confirm saving of changed state.
To lock the instrument into the admin locked state, press the buttons and ▼simultaneously in
the Menu -> Lock window. Then normally hidden admin password option appears. Choose it and type
the new admin password code – the value must be different from 0000. Then escape from the Menu-
Lock window with the button and confirm saving of changed state. The admin locked state is
indicated with the “A”-character inside the lock icon.
Store the admin password code at the secure place to be able to unlock the instrument later in case the code is
forgotten!
Unlocking from the User Locked State
To unlock the instrument, switch in Menu -> Lock the lock state back from üto ûby entering user password. The value of this
password is fixed and equal to the last four digits of the serial number of the instrument. This serial number can be found in
device display under Menu -> Info -> Serial number.
Then escape from the Lock window with the button and confirm saving of changed state.

Short Manual | UMD 807 11
Entsperren aus dem Admin-gesperrten Zustand
To unlock the instrument, switch in Menu -> Lock the lock state back from üto ûby entering correct admin password. Then
escape from the Menu-Lock window with the button and confirm saving of changed state.
Note, that such unlocking is temporary and the instrument will switch to the admin locked state automatically approx. 15 minutes
after last pressing of any button. To avoid this you need to set the admin password code to value 0000 (in the same way as the
locking as described above). Only after that the instrument state changes to permanently unlocked state.
Note : In case the admin password is lost, ask manufacturer for alternate unlock code via manufacturer's website
at www.PQ-Plus.de
Instrument Information
The instrument identification and actual status are listed in this group. The information are split up to three windows
that can be browsed through with the ►button.
Info – General Window
•Instrument Model & Serial Number … Instrument hardware model & serial No.
•Instrument Hardware, Firmware &Bootloader Versions …Instrument hardware & firmware specification.
•Object Number … Measured node specification (preset by ENVIS program for data identification).
•Vbatt … backup battery voltage (if equipped).
•Error Code … Indicates some instrument's hardware or setting problem. At normal state equals to 0. In case of
detection of any error it contains a number created as the sum of binary weights of the errors. The following table
provides overview of them and recommended action:
:
Tab 4.2 : Instrument Errors
Error No.
(weight) Error Action
1RAM memory error set the instrument (optimally with the ENVIS program, if possible) to the default
setting; if the error appears again send the instrument to a service organization for repair
2instrument setup error set the instrument (optimally with the ENVIS program, if possible) to the default
setting; if the error appears again send the instrument to a service organization for repair
4calibration error the instrument must be recalibrated – send to a
service orga
nization
8wireless communication
module error
(Wifi/Zigbee)
send to a
service organization
16 RTC error in the time setup window (or better with the ENVIS program, if possible), set actual
date&time; if the error appears again, check built-in backup battery; otherwise send
the instrument to a service organization for repair
128 archive data error clear all of the archives with the ENVIS program; if the error appears again send the
instrument to a service organization for repair
256 FLASH memory error
send to a service organization

Short Manual | UMD 807 12
Inputs & Outputs
Instruments can be equipped with various combinations of inputs and outputs (see manufactured models marking below).
Fig. 5.1 : UMD 807 – I/O Connectors
Assortment of inputs and outputs is :
•1 100 ÷ 250 VAC digital input – marked as RI1
•4 250 VAC digital outputs (relays) – RO1 ÷ RO4
•4 12 ÷ 24 VDC digital inputs – DI2 ÷ DI5
•4 12 ÷ 24 VDC digital outputs (solid state) – DO5 ÷ DO8
•2 0 ÷ 10 VDC/ 0 ÷ 20 mADC analog inputs – AI1 ÷ AI2
•2 0 ÷ 20 mADC analog outputs – AO1 ÷ AO2
•1 Pt100 temperature sensor input (optional) – TE
Furthermore, all of instrument models feature two “alarm ” lights A1 and A2 for indication of various states, that can be
considered as other special digital outputs. Function of these lights can be set in the same way as at standard digital outputs.
All of the inputs and outputs are isolated from the instrument's internal circuitry.
4.1 Connection of the I/O
A connection cable maximum cross section area is 2.5 mm2.
4.
4.1
4.1.1 RI1 Digital Input Connection
The input is designed for signal of nominal voltage in range of 100 ÷230 VAC („power input“).
Connect the signal to terminals DI1A (No. 20) and DI1B (21, see connection examples in appropriate chapter) of the D-I/O1
connector. The input is isolated from all of other instrument circuitry. For the input activation, voltage of declared level must lead
on the input.
4.1.2 RO1÷RO4 Digital Outputs Connection
Each pair of relays shares common pole connected separately to the R-I/O connector terminal. These common poles are
isolated each from other.
Tab. 5.1 : RO1 ÷ RO4 Digital Outputs Connection
terminal No.
signal
22 RO1 … RO1 relay NO contact
23 RO2 … RO2 relay NO contact
24 ROC12 … RO1 & RO2 relays common pole
25 RO3 … RO3 relay NO contact
26 RO4 … RO4 relay NO contact
27 ROC34 … RO3 & RO4 relays common pole
4.1.3 DI2÷DI5 (12÷24 VDC) Digital Inputs Connection
The inputs are determined for monitoring of 12 ÷ 24 VDC nominal voltage signals („signal inputs“). If you need to connect a
voltage signal of magnitude exceeding maximum allowed voltage, external limiting resistor of appropriate rating must be used.
Polarity of input signal is free.
Connect the input signals to the D-I/O connector according the table below. All of the four signals have common pole, that is
isolated from all of other instrument circuitry.

Short Manual | UMD 807 13
Tab. 5.2 : DI2 ÷ DI5 Digital Inputs Connection
terminal No. signal
30 DI2 input
31 DI3 input
32 DI4 input
33 DI5 input
34 DIC … DI2 ÷ DI5 inputs common pole
4.1.4 DO5÷DO8 (12÷24 VDC) Digital Outputs Connection
These outputs are solid state type. The can switch small voltage signals only, usually of 12 ÷24 V nominal voltage.
The outputs are bipolar, thus bothDC voltage (of free polarity) and AC voltage signals can be driven.
Connect the output signals to the D-I/O connector according the table below. All of the four signals have common pole, that is isolated from all of other
instrument circuitry.
Tab. 5.3 : DO5 ÷ DO8 Digital Outputs Connection
terminal No.
signal
35 DOC … DO5
÷
DO8 outputs common pole
36 DO5 output
37 DO6 output
38 DO7 output
39 DO8 output
4.1.5 AAI1, AI2 Analog Inputs Connection
Two analog signals can be monitored. Character of the signal can be :
•0 ÷ 20 mADC
•or 0 ÷ 10 VDC
The inputs have common pole marked AG. The pole is internally connected with both common pole of analog outputs AO1,
AO2 and negative pole of embedded 12 V DC auxiliary power supply .
Connect input signals to the A-I/O connector according its character as described in the table below.
Tab. 5.4 : AI1, AI2 Analog Inputs Connection
terminal No. signal
50 AI1U … 0 ÷ 10V character AI1 signal positive pole
(if AI1 signal character is 0 ÷ 20mA this terminal must stay free)
51 AG … AI1, AI2 signals common negative pole
52 AI1I … 0 ÷ 20mA character AI1 signal positive pole
(if AI1 signal character is 0 ÷ 10V this terminal must stay free)
53 AI2U … 0 ÷ 10V character AI2 signal positive pole
(if AI2 signal character is 0 ÷ 20mA this terminal must stay free)
54 AG … AI1, AI2 signals common negative pole
55 AI2I … 0 ÷ 20mA character AI2 signal positive pole
(if AI2 signal character is 0 ÷ 10V this terminal must stay free)
4.1.6 AO1, AO2 Analog Outputs Connection
The AO1 and AO2 analog outputs of 20 mA current loop character can be use for any measured quantity actual value
transmission.
The outputs have common pole marked AG. The pole is internally connected with both common pole of analog inputs AI1, AI2 and negative pole of
embedded 12 V DC auxiliary power supply .
Connect input signals to the A-I/O as described in the table below.
Tab. 5.5 : AO1, AO2 Analog Outputs Connection
terminal No.
signal
56 AO1 … AO1 output positive pole
57 AG … AO1, AO2 signals common negative pole
58 AO2 … AO2 output positive pole
59 AG … AO1, AO2 signals common negative pole
The AO1, AO2 output signals are powered by embedded 12 VDC auxiliary power supply. When connected to other instruments
maximum allowed input impedance must be observed (see technical specifications).
4.1.7 Embedded 12 VDC Auxiliary Power Supply
The supply can be used for passive contacts od sensors connection. Outputs of the supply are at the AS connector : posifive
pole at terminal AS+ (No. 70) and negative pole at terminal AG (71). The AG pole is internally connected with common poles of analog
inputs AI and ouputs AO.
Maximum load current is given in technical specifications.

Short Manual | UMD 807 14
4.1.8 External Temperature Sensor Connection
Some models are equipped with the EXT. TEMP external temperature sensor connector for measurement of external
temperature.
The input is designed for three-wire connection to a resistive temperature Pt100-type sensor. Connect the sensor to the
terminals No. 44 (TA), 45 (TB) and 46 (G) according example drawing below.
In case of two-wire connection, connect the sensor to the terminals TA and TB and short-circuit the TB terminal with the G
terminal. Note that the sensor cable loop impedance must be as low as possible (each 0.39 Ohms means additional
measurement error of 1 ºC).
The Gsignal is internally connected to the GND signal of the RS-485 remote communication link.
The temperature sensor can be ordered as the instrument’s optional accessory.
Communication Links
5.1 Local Communication Link
Instruments can be equipped with a serial interface USB 2.0, on the front panel. Using this interface, adjusting the parameters of
the instrument and the transmission of data into a portable computer can be accomplished. It requires to interconnect the
instrument with the PC using the appropriate communication cable (type USB-A, see optional accessory list).
Considering the fact that the instruments can be also equipped with a remote communication link, the described communication
link is called Local.
5.2 Remote Communication Links
5.
5.1
5.2
5.2.1 RS-485 Interface (COM)
Up to 32 instruments at a maximum distance of 1,200 metres can be connected to this interface. Used signals : A,B, G, and
optionally A2 ,B2 , G2 .
Each instrument must have a different communication address within the range of 1 to 253 preset during the installation.
Tab. 5.1 : RS-485 Remote Communication Links Wiring
COM1 interface COM2 interface
signal terminal No. signal terminal No.
A41 A2 44
B 42 B2 45
G 43 G2 46
Both of the links are insulated both from the instrument internal circuitry and mutually too, terminals No. 43 and 46 are not
connected internally !
5.2.2 Ethernet Interface (ETH)
Using this interface the instruments can be connected directly to the local computer network (LAN). Instruments with this
interface are equipped with a corresponding connector RJ- 45 with eight signals (in accordance with ISO 8877), a physical layer
corresponds to 100 BASE-T.
Each instrument must have a different IP- address, preset during the installation. The address can be set from the instrument
panel or you can use the ENVIS-DAQ program. For detection of actual IP-address you can use the Locator function.
Furthermore, you can set the DHCP function for dynamic IP-address allocation.

Short Manual | UMD 807 15
Examples of Connections
UMD 807 230 X/5A – CTs with 5ASecondary Nominal Current
TN-Network, Direct Star (“3Y”) Connection
UMD 807 … 230 V AC Type Digital I/O Connection Example

Short Manual | UMD 807 16
UMD 807 … 12/24 V DC Type Digital I/O Connection Example
UMD 807 … 0 ÷ 20 mAAnalog Inputs Connection Example

Short Manual | UMD 807 17
UMD 807 … 0 ÷ 10 V Analog Inputs Connection Example
UMD 807 … 0 ÷ 20 mAAnalog Outputs Connection Example

Short Manual | UMD 807 18
UMD 807 … Pt100 Temperature Sensor Connection
UMD 807 … 4 Remote RS485 Communication Link Connection

Short Manual | UMD 807 19
Technical Specifications
Measured Quantities
-
Voltage
Frequency
f
NOM
–
nominal frequency
50 / 60 Hz
measuring range
40 ÷ 70 Hz
measuring uncertainty
±
1
0 mHz
Voltage
model
„100“
option
„230“
option
„400“
standart
UNOM (UDIN)
–
rated voltage
(phase
-
to
-
neutral
, U
L
-
N
)
57.7 ÷ 125 VAC 180 ÷ 250 VAC 300 ÷ 415 VAC
measuring range
U
L
-
N
3 ÷
190
VAC
6 ÷ 3
75
VAC
10 ÷
625
VAC
measuring range
U
L
-
L
5 ÷
33
0 VAC
8 ÷
66
0 VAC
20 ÷
1090
VAC
measuring
uncertainty (t
A
=23±2°C)
+/
-
0.05 % of rdg
+/
-
0.02 % of rng
temperature drift
+/
-
0.03 % of rdg +/
-
0.01 % of rng
/ 10 °C
measurement category 150V CAT IV 300V CAT III
300V CAT III
600V CATII
permanent overload
300 VAC
600 VAC
1000 VAC
peak
overload (UL
–
N
/ 1 sec.)
600 VAC
1200 VAC
2000 VAC
burden power,
impedance
< 0.013 VA
Ri = 1.8M
Ω
< 0.025 VA
Ri = 3.6M
Ω
< 0.05 VA
Ri = 6 M
Ω
Voltage Unbalance
measuring range
0 ÷ 10 %
measuring uncertainty
± 0.3
Harmonics &
Interharmonics (upto 50thorder
)
reference conditions
other harmonics up to 200 % of class 3 acc. to IEC 61000
–
2
-
4 ed.2
measuring range
10 ÷ 100 % of class 3 acc. to IEC 61000
–
2
-
4 ed.2
measuring uncertainty
twicethe levels ofclass II acc. to IEC
61000
–
4
-
7 ed.2
THDU
measuring range
0 ÷ 20 %
measuring uncertainty
± 0.5
Measured Quantities
–
Current
model
„X/5A“
„X/100mA“
-
option
„X/333mV“
option
INOM (IB)
–
rated current
1 / 5 AAC
0.1 AAC
I @ 333mV
measuring range
0.005 ÷ 7 AAC
0.001 ÷
0.39 AAC
0.002 ÷ 0.5 VAC
meas. uncertainty (t
A
=23±2°C)
+/
-
0.05 % of rdg
+/
-
0.02 % of rng
temperature drift
+/
-
0.03 % of rdg +/
-
0.01 % of rng
/ 10 °C
measurement category
150V CAT III
150V CAT III
undefined
permanent overload
7.5 AAC
1 AAC
15
VAC
peak overload
-
for 1 second,
max. repetitionfrequency > 5
minutes
70 AAC 10 AAC 15 VAC
burden power
(
impedance)
< 0.5 VA
(
Ri
< 10 m
Ω)
< 0.01 VA
(
Ri
< 40 m
Ω)
< 3 uVA
(
Ri>100k
Ω)
CurrentUnbalance
measuring range
0 ÷ 100 %
measuring
uncertainty
± 1 % of rdg or ± 0.5
Harmonics & Interharmonics (up to 50thorder
)
reference conditions
other harm. up to 1000 % of class 3 acc. to IEC 61000
–
2
-
4 ed.2
measuring range
500 % of class 3 acc. toIEC 61000
–
2
-
4 ed.2
measuring uncertainty
Ih <= 10% INOM : ±1% INOM
Ih > 10%INOM : ± 1% of rdg
THDI
measuring range
0 ÷ 200 %
measuring uncertainty
THDI <= 100% : ± 0.6
THDI > 100% : ± 0.6 %of rdg

Short Manual | UMD 807 20
Measured Quantities
-
Temperature
TI
-
(internal sensor,
measured value affected by theinstrument power dissipation)
measuring range
-
40 ÷ 80°C
measurement uncertainty
± 2 ºC
TE
–
External Pt100 TemperatureSensor Input
(optional, alternatively with communication interface COM2)
measuring range
-
50 ÷
150 º
measurement uncertainty
± 2 ºC (three
-
wire connection)
Measured Quantities
–
Power, Power Factor, Energy
Active / Reactive Power, PowerFactor (PF), cos φ
(
PNOM
=
UNOM
x INOM
)
reference conditions “A” :
ambient temperature (tA)
U, I
for activepower, PF, cosφ
for reactive power
23 ± 2 °C
U = 80 ÷120 % UNOM, I = 1 ÷ 120 % INOM
PF = 1.00
PF = 0.00
act. / react. power uncertainty
± 0.5 % of rdg ± 0.005 % PNOM
PF & cos φ
uncertainty
± 0.005
reference conditions “B” :
ambient temperature (tA)
U, I
for activepower, PF, cosφ
for reactive powe
23 ± 2 °C
U = 80 ÷120 % UNOM, I = 1 ÷ 120 % INOM
PF <= 0.87
PF <= 0.87
act. / react. power
uncertainty
± 1 % of rdg ± 0.01 % PNOM
PF & cos φuncertainty
± 0.005
temperature drift of powers
+/
-
0.05 % od rgd +/
-
0.02 % PNOM
/ 10 °C
Energy
measuring range
corresponds to U & I measuring ranges
4 quadrant energy counters for both active and reactive energies
active energy uncertainty
class 0.5S acc. to EN 62053
–
22
reactive energy uncertainty
class 1Sacc.to EN 62053
–
24
Instrument Auxiliary Power Supply Voltage
aux. voltage range AC: f=40÷100 Hz; DC
7
5 ÷
500
VAC
9
0 ÷
600
VDC
power
20 VA/ 8 W
overvoltage cat.
voltage up to 300 VAC
voltage over 300
VAC
III
II
pollution degree
2
connection
isolated, polarity free
+12 VDC
Auxiliary
Power Supply
for
I/O
connection
isolated (connected with
analog I/O common pole
)
output voltage
11.5 ÷ 13 VDC
100 mADC
short
-
circuit max. duration
5 seconds