KBR multicomp 4D6-ESBSDS-1V1C6RO Operating instructions

4D6-ESBSDS-1V1C6RO
multicomp
4-quadrant
power factor contoller
Operating Instructions
Technical Parameters
Your Partner for Network
Analyzing

KBR GmbH
Am Kiefernschlag 7
D-91226 Schwabach
T [phone]
F [phone]
E info@kbr,de
www.kbr.de

Page I von IV
2009-1 GB
Dear Customer
We would like to thank you for choosing a KBR GmbH quality product.
In order to familiarize yourself with the operation and programming of the device and always be able to use the
whole functionality of this high-quality product, we recommend that you read this manual thoroughly.
The individual chapters serve to explain the technical details of the device and show how to avoid damage by
means of proper installation and commissioning.
The manual is included in the scope of delivery of the device and must be accessible for the user at all times
(e.g. in the switchgear cabinet). Even when the device is resold to third parties, the manual remains part of the
device.
Although we used the utmost care in assembling this manual, we would like to thank you in advance for no-
tifying us about any errors or ambiguous descriptions that might be in it. You will find a form for corrections in
the appendix.
Sincerely,
KBR GmbH Schwabach
Preface

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2009-1 GB
Safety Precautions
This manual contains notes that mustbe observed for your personal safety and to avoid damage to equipment.
Notes are identified by a warning sign or an info symbol according to the degree of hazard they represent.
Disclaimer
The contents of this manual has been checked with the described hardware and software components. Cer-
tain deviations, however, cannot be excluded, so the manufacturer is not liable for complete conformity. The
specifications made in this manual are checked on a regular basis, necessary corrections are included in the
next revision.
We appreciate your corrections and comments.
© KBR-GmbH
Subject to change
Danger
means that death, major injuries or damage will occur in case the
appropriate safety measures are not performed.
Warning
means that death, major injuries or damage may occur in case the
appropriate safety measures are not performed.
Caution
means that minor injuries or damage may occur in case the appropriate
safety measures are not performed.
Note
is an important information on the product, product handling or the
respective part of the user manual to which special reference is made.
Safety Precautions

Page III von IV
2009-1 GB
General Safety Precautions
In order to prevent operating errors, handling of the device is kept as simple as possible. This way, you will be
able to use the device very soon.
In your own interest, however, you should read the following safety precautions carefully.
Warning
During installation, the applicable DIN / VDE regulations must be obser-
ved!
Mains connection, setup and operation of the device must only be per-
formed by qualified personnel. Qualified personnel as understood in the
safety precautions of this manual are persons authorized to setup,
ground and mark equipment, systems and wiring systems in accor-
dance with applicable standards.
To avoid the hazard of fire and electrical shock, the device must not be
subjected to rain or other humidity!
Before the device is connected to the mains, you will have to check
whether the local mains conditions comply with the specifications on the
manufacturer's label. A wrong connection may destroy the device!
When connecting the device, the connection chart must be observed
(see chapter "Connection chart") and the connection lines must be
powerless. Only use proper line material and watch the correct polarity
when wiring!
In order to ensure proper and safe operation of the product, it must be
transported, stored, installed and mounted in accordance with the speci-
fications and operated and maintained carefully.
A device showing visible damage must by all means be considered as
unfit for operation and must be disconnected from the mains!
Error detection, repairs and maintenance work may only be carried out
in our facilities or after contacting our service team. Every warranty obli-
gation of the manufacturer expires if the device is opened without writ-
ten consent from our service team. Proper operation can no longer be
guaranteed!
Opening the device may expose parts under voltage. Capacitors in the
device may still be loaded even if the device was disconnected from all
voltage sources. It is generally not allowed to operate the open device!
In facilities subject to hazard of lightning, lightning protection must be
provided for all input and output lines (recommendations see chapter
"Protective measures")!
Safety Precautions

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2009-1 GB
Product Liability
With these product, you have acquired a quality product.
In its manufacture, only components of the highest reliability and quality were used. Each device is subject to
long-term testing before it is delivered.
For information on product liability, please refer to our General Terms and Conditions for electronic devices.
The warranted properties of the device apply only if it is operated in accordance with its intended use!
Disposal
Please dispose of defective, outdated or no longer used devices properly.
At your request, we will be pleased to dispose of the devices for you.
Product Liability / Disposal

Operating instructions multicomp
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Table of Contents
1 Device memory, battery-buffered ........................................................ 3
2 Connection of the multicomp 4D6-ESBSDS-1V1C6RO ..................... 4
2.1 Installation and assembly ...................................................................................... 4
2.2 Connection diagram ............................................................................................... 5
2.3 Terminal assignment .............................................................................................. 6
3 Commissioning guideline for the multicomp
4D6-ESBSDS-1V1C6RO ........................................................................ 7
3.1 Controller not preconfigured ................................................................................. 7
3.2 Controller preconfigured ....................................................................................... 8
4 Operating and display panel ................................................................ 9
4.1 Description of buttons ........................................................................................... 9
4.2 Navigation and device displays .......................................................................... 10
4.3 Definition of terms ................................................................................................ 14
4.4 Device programming ............................................................................................ 16
4.5 Start menu Commissioning ................................................................................. 17
4.6 Main menu Cos φ.................................................................................................. 18
4.7 Main menu Voltage / Current ............................................................................... 20
4.8 Main menu temperature ....................................................................................... 21
4.9 Main menu Module - Management ...................................................................... 22
4.10 Main menu Stages ................................................................................................ 23
4.10.1 Submenu Mode ...........................................................................................................24
4.10.2 Stage resonance frequency monitoring ...................................................................24
4.11 Main menu Uh distortion factor for voltage ....................................................... 25
4.12 Main menu Ih distortion current intensity .......................................................... 26
4.13 Main menu Extras .................................................................................................. 28
4.13.1 Commissioning ..........................................................................................................30
4.13.1.1 Submenu Transformer settings ........................................................................................ 30
4.13.1.2 Submenu Target cosine .................................................................................................... 31
4.13.1.3 Submenu Stages ................................................................................................................ 31
4.13.2 Settings .......................................................................................................................34
4.13.2.1 Submenu Modules/display ................................................................................................35
4.13.2.2 Submenu System ............................................................................................................... 41
4.13.2.3 Service submenu ................................................................................................................ 46
4.13.3 Messages ....................................................................................................................47
4.13.3.1 Messages submenu ........................................................................................................... 47
5 Basic device programming ................................................................. 50
5.1 Set transformer ..................................................................................................... 50
5.2 Set Target cosφ..................................................................................................... 52
5.3 Note on detecting errors ...................................................................................... 53
5.3.1 Facility and safety devices maintenance .................................................................54
5.3.2 Limit temperatures .....................................................................................................54
5.4 Connection chart measuring voltage PH-PH ..................................................... 55

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6 Technical data ...................................................................................... 56
6.1 Measuring and display values ............................................................................. 56
6.2 Measuring accuracy ............................................................................................. 56
6.3 Measuring principle .............................................................................................. 57
6.4 Device memory ..................................................................................................... 57
6.5 Power supply ........................................................................................................ 57
6.6 Hardware inputs .................................................................................................... 57
6.7 Hardware outputs ................................................................................................. 57
6.8 Electrical connection ............................................................................................ 58
6.9 Mechanical data .................................................................................................... 58
6.10 Standards and Miscellaneous ............................................................................. 58
6.11 Default settings after reset ................................................................................. 59
7 Appendix .............................................................................................. 60
7.1 Temperature module - connection chart ............................................................ 60
7.1.1 Terminal assignment .................................................................................................60
7.1.2 LED display ................................................................................................................ 60
7.1.3 Additional modules – function of the DIL switches ................................................60
7.2 Relay module - connection chart ........................................................................ 61
7.2.1 Terminal assignment .................................................................................................61
7.2.2 LED display .................................................................................................................61
7.2.3 Function of the DIL switches ....................................................................................61
7.3 Current measuring module - connection chart.................................................. 62
7.3.1 Terminal assignment ................................................................................................. 62
7.3.2 LED display .................................................................................................................62
7.3.3 Function of scan button ............................................................................................62

Operating instructions multicomp
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1 Device memory, battery-buffered
The device is equipped with an internal data memory, which is battery buffered to preserve long-term data. To
prevent it from being discharged, this backup battery (e.g. Varta CR 2032) is not built in when the device is
delivered, but included separately in the delivery.
aCaution
Before the initial commissioning of the device, please insert the backup battery first
(as described in the following), as otherwise all storage data would be lost in case of
a power failure.
Inserting or replacing backup battery:
1. Disconnect the device from the supply voltage.
2. Lift the upper casing cover with a suitable tool (e.g. a small screwdriver).
3. When replacing a battery, remove the empty battery from the clamp with the tool.
4. Push the new battery into the clamp and make sure that it is inserted correctly and has the right polarity.
5. Put the upper casing cover back on and click it into place by pushing.
6. Reconnect the device to the supply voltage.
aCaution
As, when the battery is empty or removed and there is no supply voltage, not only the
storage data are lost but the time is not correct anymore either, the time has to be
reset in Visual Energy with the corresponding command!

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Operating instructions multicomp
Page 4 of 62 Version 4.00
2 Connection of the multicomp 4D6-ESBSDS-1V1C6RO
2.1 Installation and assembly
• During installation, the applicable VDE regulations must be observed.
• Before the device is connected to the power supply, you will have to check whether the local power
supply conditions comply with the specifications on the nameplate. A wrong connection may destroy
the device. A different power frequency influences the measurement accordingly.
• The device must be connected in accordance with the connection diagram.
• In case the facility is subject to lightning hazard, lightning protection measures for the power supply
input must be implemented.
aCaution
The control voltage as well as the applied measuring voltage of the device must
be protected by means of a back-up fuse.
When connecting the current transformer, the direction of the energy flow and the
correct assignment to the voltage path must be observed!
During installation, please also observe our notes on safety measures against overvoltage and lightning in the
chapter "Protective measures" of this manual.
bNote
The following points must be observed when connecting the device:
- Energy flow direction
- Assigning measuring voltage input / current transformer input
When mounting the transformer, observe the current flow or energy flow
direction. If the current transformer is mounted the wrong way round, the
measured current value will be negative.
Prerequisite is that energy is consumed.
The current transformer on terminal 20/21 (k1/l1) must be arranged in the phase
where the measuring voltage for the terminal 10 (L1) is tapped.
- If the connection and energy flow direction are correct, the device
displays a positive current.
- If connected incorrectly, the current displayed is negative. Interchange the
connections until the display shows correct values.
aCaution
Before any interchanging, the current sensing transformer must be shorted out!
Current transformer
connection:
• Energy flow direction:
• Assigning measuring voltage input / current transformer input:

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2.2 Connection diagram
For voltage supply, see nameplate.
aCaution
The coil voltage for the capacitor switching contactors and the measurement
voltage have to be drawn from the same phase, as only the measurement voltage
is monitored (to protect the contactors from direct resetting in case of short-term
monophase power failure)

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Page 6 of 62 Version 4.00
2.3 Terminal assignment
A control voltage is required to supply the device with power. The
device is equipped with a multi-range power supply and may be
supplied by voltages from 85 - 265V AC/DC (see nameplate for device
voltage).
Input voltage both as PH-N and PH-PH measurement. Direct
measurement for 100... 500...600V AC. Measuring intervals are
programmable. Exceeding the measuring interval results in an error
message.
For higher voltages, connection via voltage transformers is necessary
(medium voltage measurement x/100 V), measuring range from 500V
to 30.0 KV Ph-Ph.
The measuring input for current must be connected via a current
transformer x/1A AC or x/5A AC.
When connecting the transformer, pay attention to the energy flow
direction and to the correct assignment of measuring voltage input to
current transformer.
This contact serves as a message or alarm output. During operation,
an acoustic or visual signal may be activated or a consumer shut down.
The contact is open as long as the device is currentless, and if there is
an active message. Maximum switching capacity of 2A at 250V AC.
The relays for the control outputs share the same connection to the
supply voltage.
These contacts are used as control outputs for the capacitor switching
contactors. In a currentless state of the device, the contacts are
opened for stages that are not hooked up.
A temperature sensor, e.g. PT1000, can be connected to this input to
measure the switchgear cabinet temperature.
Temperature measuring range of - 20°C to 100°C +/- 2°C.
For communication on the Energy bus or Modbus
Terminal 1 (L) and 2 (N): Connection power supply
Terminal 10 (L1, Lx):
13 (N, Ly):
Measuring voltage input
Terminal 20 (k1) and 21 (l1): Current measuring inputs
Terminal 30 (C) and 31 (S): Floating relay contact
Terminal 40 (C): Connection for voltage supply to the relay outputs terminals 41 to
45
Terminals 41 (K1) to 45 (K5): Relay contacts with potential
Maximum switching capacity of 2A at 250V AC
Terminals 51 (-) and 52 (+): Temperature sensor input
Terminal 90 (ground):
91 (A)
92 (B)
Interface connection

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3 Commissioning guideline for the multicomp
4D6-ESBSDS-1V1C6RO
This guideline helps you to correctly commission the compensation controller multicomp 4D6-ESBSDS-
1V1C6RO. It provides you with step by step instructions to help you find the options relevant for you in the
operating instructions.
To begin with, there are two cases in which the commissioning procedure for the multicomp 4D6-ESBSDS-
1V1C6RO differs.
Case 1: You have bought a complete compensation facility from KBR, and the controller is already mounted.
If this is the case, certain settings are already preconfigured in the controller.
Case 2: You only bought the controller, or the controller with additional modules (multisio 1D2-4RO, multisio
1D2-1TI2RO, multisio 1D2-4CI) and individual capacitor stages, but the device is not assembled. In this case,
the controller is delivered with the default settings (refer to chapter Default settings) and has thus not been
preconfigured.
3.1 Controller not preconfigured
If a not yet preconfigured controller is to be commissioned, the following procedure has to be performed step
by step.
1. Configuration of additional module (multisio 1D2-4RO, multisio 1D2-1TI2RO, multisio1D2-4CI)
If there are no additional temperature, relay or induced current measuring modules, this step can be skipped.
To configure additional modules, connect them and the supplied bus line to the basic module. The additional
modules can then be activated individually using a scan mode, which has to be triggered via the basic module's
operating panel and the DIL switches or scan buttons on the additional module. If the compensation facility
consists of several cabinets, the correct cabinet assignment has to be set up.
Detailed instructions for this step are given in chapter 3.13.2 Settings under the item 3.13.2.1 Module / display
submenu.
2. Configuring current transformer values
For the compensation controller to function properly, all current transformer parameters have to be set
correctly. Primary and secondary current of the transformer have to be set. These parameters can be read on
the nameplate of the current transformer. In addition, the phase allocation of the transformer has to be set
correctly. In the controller, the phase (L1, L2, L3) in which the current transformer is integrated has to be set.
Detailed instructions for this step are given in chapter 4.1 Transformer ratio. You can find more detailed
information on this topic under chapter 3.13.1 Commissioning under item 3.13.1.1 submenu Transformer
settings.
3. Setting target cosine
You can ask your energy supply company for the target cosine, which should be set up at this point. The target
cosine is by default set to 0.95 inductive (see chapter Default settings).
Detailed instructions for this step are given in chapter 4.2 Set target cosine. You can find more detailed
information on this topic under chapter 3.13.1 Commissioning under item 3.13.1.2 submenu Target cosine.
4. Configuring the capacitor stages
There are two ways of configuring the capacitor stages. The stages can be configured manually or using the
auto configuration mode.
The most important setting to pay attention to is the stage power. The stage power can be looked up on the
nameplate of the stage or the circuit diagram and then programmed manually. The auto configuration mode
then automatically sets this value. However, it has to be confirmed and checked after each time the learning
process is performed.
Detailed instructions for the auto configuration mode are given in chapter 3.13 Extra –> Commissioning –>
Stages –> Stage –> Auto configuration mode (3.13.1.3).

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Operating instructions multicomp
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After the stage power has been configured, you have to set the reactor factor. This factor can be read on the
circuit diagram cover sheet or the nameplate of the stage.
If the compensation facility consists of several cabinets, the cabinet assignment should be adjusted
accordingly.
Detailed instructions for this step are given in chapter 3.13.1 Commissioning under the item 3.13.1.3 Stages
submenu.
5. Function test
After all values have been programmed, a function test should be performed. To do so, the controller has to be
taken off the voltage supply for a few seconds.
After re-connecting it to the voltage supply, the controller has to start automatically. If the cosφvoltage is read
out in the cosφact. menu immediately after switching it on, the value for cosφshould be low and inductive.
After ca. 60 seconds, the controller starts to switch on the individual capacitor stages.
The cosφvalue displayed in the cosφact. menu should have risen in comparison with former values, or it
should rise when switching on additional stages. If the compensation facility is set up
correctly, the controller should compensate the set target cosine after a certain period of time.
3.2 Controller preconfigured
If a controller already integrated into a KBR compensation facility by default should be used, only the
parameters of the current transformer have to be configured.
1. Configuring current transformer values
For the compensation controller to function properly, all current transformer parameters have to be set
correctly. Primary and secondary current of the transformer have to be set. These parameters can be read on
the nameplate of the current transformer. In addition, the phase allocation of the transformer has to be set
correctly. In the controller, the phase (L1, L2, L3) in which the current transformer is integrated has to be set.
Detailed instructions for this step are given in chapter 4.1 Transformer ratio. You can find more detailed
information on this topic under chapter 3.13.1 Commissioning under item 3.13.1.1 submenu Transformer
settings.
2. Function test
After all values have been programmed, a function test should be performed. To do so, the controller has to be
taken off the voltage supply for a few seconds.
After re-connecting it to the voltage supply, the controller has to start automatically. If the cosφvoltage is read
out in the cosφact. menu immediately after switching it on, the actual value for cosφshould be low and
inductive. After ca. 60 seconds, the controller starts to switch on the individual capacitor stages.
The cosφvalue displayed in the cosφact. menu should have risen in comparison with former values, or it
should rise when switching on additional stages. If the compensation facility is set up
correctly, the controller should compensate the set target cosine after a certain period of time.

Operating instructions multicomp
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4 Operating and display panel
1
2
3
4.1 Description of buttons
The navigation panel shows the main menu selected, notably simplifying operation of the
device.
The operator can see immediately which menu he is in.
The DOT matrix display is normally used to show measured values.
In some submenus, this display area is used to show additional information to assist
operation.
The text line corresponds to the function keys lying below it and is used to issue messages
and text. The interaction of key and accompanying display enables a very convenient
operation which is self-explanatory.
►1 Navigation panel of display
►2 Units display
►3 Hot key area

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4.2 Navigation and device displays
Max
Maximum values
Cos Phi
Act. cos Phi Act. insufficient compensation power
U/I
Voltage U Main current I
Target
Act. target cos phi
Additional stages
Max
Maximum values
Total power
SPQE
Max
Ie/f
Induced current Power frequency
Min
Minimum values
Induced current
Induced current cabinet 1
Induced current
Induced current cabinets 2- 6
Freq
Power frequency
Max
Maximum values
Module management
Basic module display Cabinet assignment
Module management
Other module types Cabinet assignment
Maximum values
Temperature
Temperature cabinet 1 Fan state cabinet 1
Maximum values
Max
Max
Maximum values Cabinets 2-6
OTemp
Over temperature switch-off
cabinets 2-6
Act.
Actual values
Temperature
Temperature cabinets 2-6 Fan state cabinets 2-6
Inst.
Instantaneous values Cabinets 2-6
OTemp
Over temperature switch-off cabinet 1
Main menus Submenus

Stages
Stage power stage 1 Operating cycles Overtemp. switch off
Harmon. U
Harmon. U total HD
Stage auto, off, on
Mode
Maximum values U HD
Harmon. I total Cabinets 2 to 6
Harmon I
Extra
Commissioning Settings Messages
Harmon I
Harmon. I total Cabinet 1
Maximum values Harmon. I 3rd to 13th Cabinet 1
Max
Main menus Submenus
Stages
Stage power stages 2-26 Operating cycles stages Overtemp. switch off
2-26
Max
Harmon. U 3rd to 19th
Harmon U Max
Maximum values Harmon. U 3rd to 13th
Harmon. I 3rd to 19th Cabinet 1
Harmon I
Maximum values I total Cabinet 1
Max
Maximum values Harmon. I 3rd to 13th Cabinets 2 to 6
Max
Harmon. I 3rd to 19th Cabinets 2 to 6
Harmon I
Refer to next page
Operating instructions multicomp
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Induced curr. transf.
F4
F2
F3
F1 Back
Main curr. transformer
I secondary
Phase I
I primary
Voltage transformer
U secondary
Phase U
U primary
Self/learning mode
F4
F2 Start
F3
F1 Back
Stage parameters
Detuning
Cabinet No.
Stage power
ModuleManagement
Target Cos
Cos1-3Setting
Bus
Display / Language
F4 Runtime / Clock
F2 LCD - Parameter
F3 Language
F1 Back
Switching actions
Reset
No. overtemp. shutdowns
Switching actions
Facility type
Facility type
Transformer
F4 Voltage transformer
F2 Main curr. transformer
F3 Induced curr. transf.
F1 Back
Stage parameters
Cabinet No.
Stage power
Comm. / Display
F4 Display / Language
F2 Module management
F3 Bus
F1 Back
Stage parameters
Detuning
Cabinet No.
Stage power
Extra
F4 Messages
F2 Commissioning
F3 Settings
F1 Back
Commissioning
F4 Stages
F2 Transformer
F3 Target Cos
F1 Back
Settings
F4 Service
F2 Comm./Display
F3 System
F1 Back
Discharge time/Detuning
Detuning
Discharge time
Daylight saving time
Stages
F4
F2 Self/learning mode
F3 Stage parameters
F1 Back
Discharge time
Discharge time
Discharge time/Detuning
Detuning 1
Detuning 2
Discharge time
Special outputs
Alarm relay
Fan
LCD - Parameter
Runtime / Clock
Language
Time / Date
Standard
Combination filter
Special
Facility type:
Branching acc. to Facility type
Setting per stage
Module rec. On/Off
Delete module
Assign cabinet No.
Modulscan Firmware-Version
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System
F4 Reset
F2
F3 Parameter
F1 Back
Temp. Alarm
Hysteresis
Switching threshold
Temperature param.
Measurement
enabled/dis.
Messages
F4 Relay / stages off
F2 inst. Error messages
F3 Error status
F1 Back
Parameter
F4 Limits
F2 Switching behavior
F3 Temperature param.
F1 Back
Limits
F4 Lim. Harmon. U
F2 Lim. overcurr. Shutdown
F3 Lim. Switching actions
F1 Back
Extra
F4 Messages
F2 Commissioning
F3 Settings
F1 Back
Settings
F4 Service
F2 Comm./Display
F3 System
F1 Back
Temp. Shutdown
Hysteresis
Switching threshold
Switching times
t - Error (s)
Switching interval
t - Idle (s)
Lim. Switching actions
Reset
Reset Para. Curr. transf.
Commissioning status
Reset Error status
Enabling
Switching behavior
F4 Attenuation factors
F2 Switching hysteresis
F3 Switching times
F1 Back
Switching hysteresis
Hysteresis Off ( % )
Hysteresis On ( % )
Attenuation factors
Current
Q
fehl
Voltage
Temp. Fan
Hysteresis
Switching threshold
Inst. Error messages
Reset(1)
Reset Extremes
Reset Limits
Reset(3)
Reset measuring param.
Reset to factory sett.
Error status
Lim. overcurr. shutdown
Lim. Harmon. U
Output (Error mess. relay/
Stage shutdown)
Type (exceeded)
Reset(2)
Reset Module parameters
Reset Stage parameters
Reliy/ Stages off
Relay / Shutdown
Assignment message /
Service
F4 Firmware Version
F2 Hotline
F3 Password
F1 Back
Hotline
Firmware Display
Password
Firmware Version
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4.3 Definition of terms
The following signs and abbreviations will be used in the display:
5Star voltage
4Delta voltage
3Inductive
6Capacitive
2Switch on
1Switch off
±Scroll through main menu or submenu
¢Return
¥Submenu or parameter selection
+Enter value
7Selection
aEnergy recovery (generator operation)
bAttention Message
cEdit
dSwitching (make or break)
eMaximum value
fMinimum value
cos8Active power factor
cosPhi Active power factor
Max Display and processing for maximum values
Mom Display for actual values
Para Return for configuration
EDIT Perform configuration
Freq. Power frequency
U ph-n Voltage phase / neutral conductor
I ph-n Current phase / neutral conductor
P9Active power – total (three-phase)
PQS 9Active power / reactive power / apparent power - total (three-phase)
Lim Limit
DC Damping coefficient
Module Module management
YES Confirmation to save configuration
NO Discard configuration
SCAN Scan mode (search mode) for module search and EBUS address assignment
Modus Switching mode of stages
Harm. U Voltage harmonics (distortion factor)
Harm. I Current harmonics (distortion current intensity)
Firmware Operating system software of basic device or of display module
Setup Device configuration
Mess. Error messages and error state
Displ. Operating system of display module
Basic para. Basic parameters (submenus)
÷ÿŸU Measuring voltage transformer prim./sec.
÷ÿŸI Series transformer prim./sec.