Siemens SITRANS LG260 User manual

Operating Instructions • 09/2017
Guided Wave Radar
SITRANS LG260
Four-wire Modbus
Converter version in second chamber
Rod and cable probe

2PBD-51041059
SITRANS LG260 - Operating Instructions
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PBD-51041059 SITRANS LG260 - Operating Instructions
44284-EN-17102144284-EN-171021
Contents
1 About this document ............................................................................................................... 5
1.1 Function ........................................................................................................................... 5
1.2 Target group ..................................................................................................................... 5
1.3 Symbols used................................................................................................................... 5
2 For your safety ......................................................................................................................... 6
2.1 Authorised personnel ....................................................................................................... 6
2.2 Appropriate use................................................................................................................ 6
2.3 Warning about incorrect use............................................................................................. 6
2.4 General safety instructions............................................................................................... 6
2.5 EU conformity................................................................................................................... 7
2.6 NAMUR recommendations .............................................................................................. 7
2.7 Installation and operation in the USA and Canada ........................................................... 7
3 Product description ................................................................................................................. 8
3.1 Conguration.................................................................................................................... 8
3.2 Principle of operation........................................................................................................ 9
3.3 Packaging, transport and storage..................................................................................... 9
3.4 Accessories and replacement parts ............................................................................... 10
4 Mounting................................................................................................................................. 12
4.1 General instructions ....................................................................................................... 12
4.2 Mounting instructions ..................................................................................................... 13
5 Connecting to power supply and bus system .................................................................... 18
5.1 Preparing the connection ............................................................................................... 18
5.2 Connecting..................................................................................................................... 19
5.3 Wiring plan ..................................................................................................................... 20
5.4 Supplementary electronics............................................................................................. 21
5.5 Switch-on phase............................................................................................................. 22
6 Set up the sensor with the display and adjustment module............................................. 23
6.1 Adjustment volume......................................................................................................... 23
6.2 Insert display and adjustment module............................................................................ 23
6.3 Adjustment system......................................................................................................... 24
6.4 Parameter adjustment - Quick setup .............................................................................. 25
6.5 Parameter adjustment - Extended adjustment................................................................ 25
6.6 Saving the parameterisation data................................................................................... 41
7 Setting up sensor and Modbus interface with PACTware.................................................. 43
7.1 Connect the PC.............................................................................................................. 43
7.2 Parameter adjustment with PACTware............................................................................ 44
7.3 Set instrument address .................................................................................................. 45
7.4 Set up with the quick setup............................................................................................. 46
7.5 Saving the parameterisation data................................................................................... 48
8 Diagnostics and servicing .................................................................................................... 49
8.1 Maintenance .................................................................................................................. 49
8.2 Diagnosis memory ......................................................................................................... 49
8.3 Status messages............................................................................................................ 50
8.4 Rectify faults................................................................................................................... 53
8.5 Exchanging the electronics module................................................................................ 56

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8.6 Exchange or shorten cable/rod ...................................................................................... 57
8.7 Software update ............................................................................................................. 59
8.8 How to proceed if a repair is necessary.......................................................................... 59
9 Dismount................................................................................................................................. 60
9.1 Dismounting steps.......................................................................................................... 60
9.2 Disposal ......................................................................................................................... 60
10 Supplement ............................................................................................................................ 61
10.1 Technical data ................................................................................................................ 61
10.2 Basics Modbus............................................................................................................... 72
10.3 Modbus register ............................................................................................................. 73
10.4 Modbus RTU commands ............................................................................................... 76
10.5 Levelmaster commands ................................................................................................. 79
10.6 CongurationoftypicalModbushosts ........................................................................... 83
10.7 Dimensions .................................................................................................................... 88
10.8 Trademark ...................................................................................................................... 92
Safety instructions for Ex areas
TakenoteoftheExspecicsafetyinstructionsforExapplications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions manual.
Editing status: 2017-09-14

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PBD-51041059 SITRANS LG260 - Operating Instructions
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1 About this document
1.1 Function
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instruc-
tionsformaintenance,faultrectication,theexchangeofpartsand
the safety of the user. Please read this information before putting the
instrument into operation and keep this manual accessible in the im-
mediate vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained personnel.
Thecontentsofthismanualmustbemadeavailabletothequalied
personnel and implemented.
1.3 Symbols used
Information, tip, note
This symbol indicates helpful additional information.
Caution: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
→ Action
This arrow indicates a single action.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

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2 For your safety
2.1 Authorised personnel
All operations described in this operating instructions manual must
be carried out only by trained specialist personnel authorised by the
plant operator.
During work on and with the device the required personal protective
equipment must always be worn.
2.2 Appropriate use
SITRANS LG260 is a sensor for continuous level measurement.
Youcannddetailedinformationabouttheareaofapplicationin
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives. The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed and their meaning looked up in this
operating instructions manual.

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PBD-51041059 SITRANS LG260 - Operating Instructions
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2.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
Electromagnetic compatibility
Instruments in four-wire or Ex-d-ia version are designed for use in an
industrial environment. Nevertheless, electromagnetic interference
from electrical conductors and radiated emissions must be taken into
account, as is usual with class A instruments according to EN 61326-
1.Iftheinstrumentisusedinadierentenvironment,theelectromag-
netic compatibility to other instruments must be ensured by suitable
measures.
2.6 NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
acceptedasthestandardineldinstrumentation.
ThedevicefullstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE 43 – Signal level for fault information from measuring transduc-
ers
• NE53–Compatibilityofelddevicesanddisplay/adjustment
components
• NE107-Self-monitoringanddiagnosisofelddevices
For further information see www.namur.de.
2.7 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code

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3 Product description
3.1 Conguration
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
2
1
5
3
6
4
7
8
11
12
13
14
10
9
1
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Product code
3 Process and ambient temperature, process pressure
4 Process pressure
5 Signal output electronics
6 Voltage supply
7 Protection rating
8 Order number
9 Identicationcode
10 Serial number of the instrument
11 Symbol of the device protection class
12 Reminder to observe the instrument documentation
13 ID numbers, instrument documentation
Theinstrumentcontainstwodierentelectronicsinitshousingcham-
bers:
• The Modbus electronics for power supply and communication with
the Modbus-RTU
• The sensor electronics for the actual measuring tasks
2
1
Fig. 2: Position of Modbus and sensor electronics
1 Modbus electronics
2 Sensor electronics
Type label
Electronics design

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This operating instructions manual applies to the following instrument
versions:
• Hardware from 1.0.0
• Software from 1.3.0
• OnlyforinstrumentversionswithoutSILqualication
This electronics version can be determined via the product code on
the type label as well as on the electronics.
• Standard electronics:Type FX80HK.-
The scope of delivery encompasses:
• Sensor
• Optional accessory
• Documentation
– Operating instructions SITRANS LG260
– Instructions for optional instrument features
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
Information:
In this operating instructions manual, the optional instrument features
are described.The respective scope of delivery results from the order
specication.
3.2 Principle of operation
The SITRANS LG260 is a level sensor with cable or rod probe for
continuous level measurement, suitable for applications in bulk solids.
High frequency microwave pulses are guided along a steel cable or
a rod. Upon reaching the product surface, the microwave pulses are
reected.Therunningtimeisevaluatedbytheinstrumentandoutput-
ted as level.
3.3 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Scope of this operating
instructions manual
Versions
Scope of delivery
Application area
Functional principle -
level measurement
Packaging
Transport
Transport inspection

10 PBD-51041059
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Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
• Not in the open
• Dry and dust free
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
• Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
• Relative humidity 20 … 85 %
With an instrument weight of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
3.4 Accessories and replacement parts
The display and adjustment module LG Local Display Interface is
used for measured value indication, adjustment and diagnosis. It can
be inserted into the sensor and removed at any time.
Youcanndadditionalinformationintheoperatinginstructions
manual "LG Local Display Interface" (Document-ID 43838).
The LG Remote Interface is an external display and adjustment unit
for sensors with single chamber housing and Ex-d double chamber
housing.
It is suitable for measured value indication and adjustment of sensors
and is connected to the sensor with a four-wire standard cable up to
50 m (164 ft) long.
Youcanndadditionalinformationintheoperatinginstructions
manual "LG Remote Interface".
Screwedangesareavailableindierentversionsaccordingtothe
following standards: DIN 2501, EN 1092-1, ASME B 16.5, JIS B 2210-
1984, GOST 12821-80.
Youcanndadditionalinformationinthesupplementaryinstructions
manual "Flanges according to DIN-EN-ASME-JIS" (Document-ID
47574).
The electronics module SITRANS series LG is a replacement part for
TDRsensorsofSITRANSseriesLG.Thereisadierentversionavail-
able for each type of signal output.
Youcanndfurtherinformationintheoperatinginstructionsmanual
"Electronics module SITRANS series LG".
The electronics module Modbus is a replacement part for TDR sen-
sors of SITRANS series LG.
Storage
Storage and transport
temperature
Lifting and carrying
Display and adjustment
module
External display and
adjustment unit
Flanges
Electronics module
Electronics module,
Modbus

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PBD-51041059 SITRANS LG260 - Operating Instructions
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Youcanndfurtherinformationintheoperatinginstructionsmanual
"Electronics module Modbus SITRANS series LG".
If you are using an instrument with rod version, you can extend the
rod probe individually with curved segments and rod and cable exten-
sionsofdierentlengths.
All extensions used must not exceed a total length of 6 m (19.7 ft).
The extensions are available in the following lengths:
Rod: ø 16 mm (0.63 in)
• Basic segments: 20 … 5900 mm (0.79 … 232 in)
• Rod/cable segments: 20 … 5900 mm (0.79 … 232 in)
• Curved segments: 100 x 100 mm (3.94 … 3.94 in)
Youcanndfurtherinformationintheoperatinginstructionsmanual
"Rod and cable components SITRANS series LG".
If you mount the SITRANS LG260 in a bypass tube or standpipe, you
have to avoid contact to the bypass tube by using a spacer at the
probe end.
Youcanndadditionalinformationintheoperatinginstructions
manual "Centering".
Rod components
Centering

12 PBD-51041059
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4 Mounting
4.1 General instructions
Oninstrumentswiththreadedprocesstting,thehexagonmustbe
tightenedwithasuitablewrench.Fortheproperwrenchsizesee
chapter "Dimensions".
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
Protect your instrument against moisture ingress through the following
measures:
• Use a suitable connection cable (see chapter "Connecting to
power supply")
• Tighten the cable gland
• Whenmountinghorizontally,turnthehousingsothatthecable
gland points downward
• Loop the connection cable downward in front of the cable gland
This applies mainly to outdoor installations, in areas where high
humidity is expected (e.g. through cleaning processes) and on cooled
or heated vessels.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
Makesurethatthedegreeofcontaminationspeciedinchapter
"Technical data" meets the existing ambient conditions.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory.They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.The dust protection caps do
notprovidesucientprotectionagainstmoisture.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
Make sure before mounting that all parts of the instrument exposed to
the process are suitable for the existing process conditions.
These are mainly:
• Active measuring component
• Processtting
• Process seal
Process conditions in particular are:
Screwing in
Protection against mois-
ture
Cable glands
Suitability for the process
conditions

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PBD-51041059 SITRANS LG260 - Operating Instructions
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• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasionandmechanicalinuences
Youcannddetailedinformationontheprocessconditionsinchapter
"Technical data" as well as on the type label.
The instrument is suitable for standard and extended ambient condi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1.
4.2 Mounting instructions
Mount SITRANS LG260 in such a way that the distance to vessel
installations or to the vessel wall is at least 300 mm (12 in). In non-
metallic vessels, the distance to the vessel wall should be at least
500 mm (19.7 in).
During operation, the probe must not touch any installations or the
vessel wall. If necessary, fasten the probe end.
In vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel, as measurement is then possible
nearly down to the lowest point of the bottom. Keep in mind that
measurement all the way down to the tip of the probe may not be pos-
sible.The exact value of the min. distance (lower dead band) is stated
in chapter "Technical data" of the operating instructions.
Fig. 3: Vessel with conical bottom
Plastic vessel/Glass vessel
The guided microwave principle requires a metallic surface on the
processtting.Therefore,inplasticvessels,etc.,useaninstru-
mentversionwithange(fromDN50)orplaceametalsheet
(ø>200mm/8in)beneaththeprocessttingwhenscrewingitin.
Makesurethattheplatehasdirectcontactwiththeprocesstting.
When using the probes without metal vessel wall, e.g. in plastic
vessels,themeasuredvaluecanbeinuencedbystrongelectromag-
neticelds(emittedinterferenceaccordingtoEN61326:classA).
Suitability for the ambient
conditions
Installation position
Type of vessel

14 PBD-51041059
SITRANS LG260 - Operating Instructions
44284-EN-171021
Use a probe in coax version for applications in liquids.
1 2
Fig. 4: Mounting in non-metallic vessel
1 Flange
2 Metal sheet
Concrete vessel
When mounting in thick concrete ceilings, SITRANS LG260 should
bemountedfrontushtotheloweredge.Inconcretesilos,thedis-
tance to the wall should be at least 500 mm (20 in).
ø >160mm
(ø >6.3")
Fig. 5: Mounting in concrete silo

15
PBD-51041059 SITRANS LG260 - Operating Instructions
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Ifpossible,avoidsockets.Mountthesensorushwiththevesseltop.
If this is not possible, use short sockets with small diameter.
Higher sockets or sockets with a bigger diameter can generally be
used.They can, however, increase the upper blocking distance (dead
band). Check if this is relevant for your measurement.
In such cases, always carry out a false signal suppression after
mounting.Youcanndfurtherinformationunder"Setup procedure".
h
d
dh
DN25 ... DN150
> DN150 ... DN200
≤ 150 mm (5.91")
≤ 100 mm (3.94")
Fig. 6: Mounting socket
Whenweldingthesocket,makesurethatthesocketisushwiththe
vessel top.
1 2
Fig.7:Socketmustbeinstalledush
1 Unfavourable mounting
2 Socketush-optimummounting
Before beginning the welding work, remove the electronics module
from the sensor. By doing this, you avoid damage to the electronics
through inductive coupling.
Donotmounttheinstrumentsinorabovethellingstream.Makesure
thatyoudetecttheproductsurface,nottheinowingproduct.
Mounting socket
Welding work
Inowingmedium

16 PBD-51041059
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Fig.8:Mountingofthesensorwithinowingmedium
The reference plane for the measuring range of the sensors is the
sealingsurfaceofthethreadorange.
Keep in mind that a min. distance must be maintained below the refer-
ence plane and possibly also at the end of the probe - measurement
in these areas is not possible (dead band).The length of the cable
can be used all the way to the end only when measuring conductive
products.Theseblockingdistancesfordierentmediumsarelisted
in chapter "Technical data". Keep in mind for the adjustment that the
default setting for the measuring range refers to water.
Theprocessttingmustbesealedifthereisgaugeorlowpressurein
the vessel. Before use, check if the seal material is resistant against
the measured product and the process temperature.
Themax.permissiblepressureisspeciedinchapter"Technical
data" or on the type label of the sensor.
If there is a risk of the cable probe touching the vessel wall during
operation due to product movements or agitators, etc., the measuring
probeshouldbesecurelyxed.
There is an inside thread (M12) in the gravity weight, e.g. for an eye-
bolt (optional).
Make sure that the probe cable is not completely taut. Avoid tensile
loads on the cable.
Avoidundenedvesselconnections,i.e.theconnectionmustbe
eithergroundedreliablyorisolatedreliably.Anyundenedchangeof
this condition can lead to measurement errors.
If there is a danger of the rod probe touching the vessel wall, fasten
the probe at the bottom end.
Keep in mind that measurement is not possible below the fastening
point.
Measuring range
Pressure
Fasten

17
PBD-51041059 SITRANS LG260 - Operating Instructions
44284-EN-171021
1
2
1
2
Fig. 9: Fasten the probe
1 Measuring probe
2 Retaining sleeve
Incaseofdicultinstallationconditionsinliquidapplications,the
probe can be also mounted laterally. For this purpose, adapt the rod
with rod extensions or bow-shaped segments.
To compensate for the resulting changes in signal runtime, let the
instrument determine the probe length automatically.
The determined probe length can deviate from the actual probe
length when using curved or angled segments.
If internal installations such as struts, ladders, etc. are present on the
vessel wall, the measuring probe should be mounted at least 300 mm
(11.81 in) away from the vessel wall.
Youcanndfurtherinformationinthesupplementaryinstructionsof
the rod extension.
Incaseofdicultinstallationconditions,forexampleinasocket,the
probe can be suitably adapted with a rod extension.
To compensate for the resulting changes in signal runtime, let the
instrument determine the probe length automatically.
Youcanndfurtherinformationinthesupplementaryinstructionsof
the rod and cable components.
Lateral installation
Rod extension

18 PBD-51041059
SITRANS LG260 - Operating Instructions
44284-EN-171021
5 Connecting to power supply and bus
system
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
• The electrical connection must only be carried out by trained
personnel authorised by the plant operator.
• If overvoltage surges are expected, overvoltage arresters should
be installed.
The instrument requires an operating voltage of 8 … 30 V DC. Operat-
ing voltage and digital bus signal are carried on separate two-wire
connection cables.
The instrument is connected with standard two-wire, twisted cable
suitable for RS 485. If electromagnetic interference is expected which
is above the test values of EN 61326 for industrial areas, screened
cable should be used.
Make sure that the cable used has the required temperature resist-
anceandresafetyformax.occurringambienttemperature
Use cable with round cross section for instruments with housing and
cable gland. Use a cable gland suitable for the cable diameter to
ensurethesealeectofthecablegland(IPprotectionrating).
Make sure that the entire installation is carried out according to the
Fieldbusspecication.Inparticular,makesurethatthebusistermi-
nated with suitable terminating resistors.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory.They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
On plastic housings, the NPT cable gland or the Conduit steel tube
must be screwed into the threaded insert without grease.
Max. torque for all housings, see chapter "Technical data".
Safety instructions
Voltage supply
Connection cable
Cable glands

19
PBD-51041059 SITRANS LG260 - Operating Instructions
44284-EN-171021
Make sure that the cable screen and grounding are carried out ac-
cordingtoFieldbusspecication.Werecommendtoconnectthe
cable screen to ground potential on both ends.
In systems with potential equalisation, connect the cable screen
directly to ground potential at the power supply unit and the sensor.
The screen in the sensor must be connected directly to the internal
ground terminal.The ground terminal outside on the housing must be
connected to the potential equalisation (low impedance).
5.2 Connecting
The voltage supply and signal output are connected via the spring-
loaded terminals in the housing.
Connection to the display and adjustment module or to the interface
adapter is carried out via contact pins in the housing.
Information:
The terminal block is pluggable and can be removed from the
electronics.To do this, lift the terminal block with a small screwdriver
and pull it out. When reinserting the terminal block, you should hear it
snap in.
Proceed as follows:
1. Unscrew the housing lid
2. Loosen compression nut of the cable gland and remove blind
plug
3. Remove approx. 10 cm (4 in) of the cable mantle (signal output),
strip approx. 1 cm (0.4 in) insulation from the ends of the indi-
vidual wires
4. Insert the cable into the sensor through the cable entry
Fig. 10: Connection steps 5 and 6
5. Insert the wire ends into the terminals according to the wiring plan
Cable screening and
grounding
Connection technology
Connection procedure

20 PBD-51041059
SITRANS LG260 - Operating Instructions
44284-EN-171021
Information:
Solidcoresaswellasexiblecoreswithwireendsleevesareinsert-
eddirectlyintotheterminalopenings.Incaseofexiblecoreswithout
end sleeves, press the terminal from above with a small screwdriver,
the terminal opening is then free.When the screwdriver is released,
the terminal closes again.
6. Check the hold of the wires in the terminals by lightly pulling on
them
7. Connect the screen to the internal ground terminal, connect the
outer ground terminal to potential equalisation in case of power
supply via low voltage
8. Connect the lead cable for power supply in the same way accord-
ing to the wiring plan, in addition connect the ground conductor to
the inner ground terminal when powered with mains voltage.
9. Tighten the compression nut of the cable glands.The seal ring
must completely encircle the cables
10. Screw the housing lid back on
Theelectricalconnectionisnished.
Information:
The terminal blocks are pluggable and can be removed from the
housing insert. To do this, lift the terminal block with a small screwdriv-
er and pull it out. When inserting the terminal block again, you should
hear it snap in.
5.3 Wiring plan
2
1
Fig. 11: Position of connection compartment (Modbus electronics) and electron-
ics compartment (sensor electronics)
1 Terminal compartment
2 Electronics compartment
Overview