Pepperl+Fuchs LS684 Series User manual

R
LS684*
Optical Data Coupler
FACTORY AUTOMATION
MANUAL

With regard to the supply of products, the current issue of the following document is applicable: The
General Terms of Delivery for Products and Services of the Electrical ndustry, published by the
Central Association of the Electrical ndustry (Zentralverband Elektrotechnik und Elektroindustrie
(ZVE ) e.V.) in its most recent version as well as the supplementary clause: "Expanded reservation
of proprietorship"
LS684*

LS684*
Contents
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1 Intro uction......................................................................... 4
1.1 Content of this Document .............................................................................4
1.2 Manufacturer.................................................................................................4
1.3 Target Group, Personnel ...............................................................................4
1.4 Symbols Used...............................................................................................5
2 Safety................................................................................... 6
2.1 ntended Use ................................................................................................6
2.2 General Safety nformation ............................................................................6
3 Pro uct Description ........................................................... 9
3.1 ntended Use ................................................................................................9
3.2 Model Varieties ...........................................................................................11
3.3 Displays and Operating Elements ...............................................................12
3.4 Signaling of the Connection Status .............................................................12
3.5 nterfaces and Connections ........................................................................14
3.6 Scope of Delivery ........................................................................................15
3.7 Accessories ................................................................................................15
3.7.1 Mounting Accessories ............................................................................15
3.7.2 Connecting Cables.................................................................................15
3.7.3 Network Connection Cable.....................................................................16
4 Installation......................................................................... 17
4.1 Preparation .................................................................................................17
4.2 Mounting .....................................................................................................17
4.3 Connection .................................................................................................20
4.4 Storage and Transportation .........................................................................21
5 Commissioning................................................................. 22
5.1 Alignment and Adjustment ..........................................................................22
5.2 Topology .....................................................................................................29
6 Maintenance an Repair .................................................. 30
6.1 Maintenance ...............................................................................................30
6.2 Repair .........................................................................................................30
7 Troubleshooting................................................................ 31
7.1 What to Do in the Event of a Fault ...............................................................31
LS684*

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LS684*
ntroduction
1 ntroduction
1.1 Content of this Document
This document contains information required to use the product in the relevant
phases of the product life cycle. This may include information on the following:
■ Product identification
■ Delivery, transport, and storage
■ Mounting and installation
■ Commissioning and operation
■ Maintenance and repair
■ Troubleshooting
■ Dismounting
■ Disposal
The documentation comprises the following parts:
■ This document
■ Datasheet
n addition, the documentation may comprise the following parts, if applicable:
■ EU-type examination certificate
■ EU declaration of conformity
■ Attestation of conformity
■ Certificates
■ Control drawings
■ nstruction manual
■ Other documents
1.2 Manufacturer
1.3 Target Group, Personnel
Responsibility for planning, assembly, commissioning, operation, maintenance,
and dismounting lies with the plant operator.
Only appropriately trained and qualified personnel may carry out mounting,
installation, commissioning, operation, maintenance, and dismounting of the
product. The personnel must have read and understood the instruction manual
and the further documentation.
Note!
For full information on the product, refer to the further documentation on the
nternet at www.pepperl-fuchs.com.
Pepperl+Fuchs GmbH
Lilienthalstraße 200, 68307 Mannheim, Germany
nternet: www.pepperl-fuchs.com
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ntroduction
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Prior to using the product make yourself familiar with it. Read the document
carefully.
1.4 Symbols Used
This document contains symbols for the identification of warning messages and of
informative messages.
Warning Messages
You will find warning messages, whenever dangers may arise from your actions. t
is mandatory that you observe these warning messages for your personal safety
and in order to avoid property damage.
Depending on the risk level, the warning messages are displayed in descending
order as follows:
Informative Symbols
Action
This symbol indicates a paragraph with instructions. You are prompted to perform
an action or a sequence of actions.
Danger!
This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.
Warning!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected systems and
plants, or result in their complete failure.
Note!
This symbol brings important information to your attention.

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LS684*
Safety
2 Safety
2.1 ntended Use
The optical data coupler serves as an optical link between two Ethernet devices;
ideally, one of these devices is mobile.
Always operate the device as described in these instructions to ensure that the
device and connected systems function correctly. The protection of operating
personnel and plant is only guaranteed if the device is operated in accordance
with its intended use.
Only use recommended original accessories.
The operating company bears responsibility for observing locally applicable
safety regulations.
nstallation and commissioning of all devices may only be performed by trained
and qualified personnel.
User modification and or repair are dangerous and will void the warranty and
exclude the manufacturer from any liability. f serious faults occur, stop using the
device. Secure the device against inadvertent operation. n the event of repairs,
return the device to your local Pepperl+Fuchs representative or sales office.
2.2 General Safety nformation
Class 1M laser pro uct
This device is a class 1M laser product:
Stan ar s
EC 60825-1:2007 certified. Complies with 21 CFR 1040.10 and 1040.11 except
for deviations pursuant to Laser Notice No. 50, dated June 24, 2007.
Certifié cei 60825-1:2007. Conforme aux normes 21 CFR 1040.10 ET 1040.11 à
l'exception des écarts conformément à la notice du laser N° 50, Datée du
24 JU N 2007.
LS684*

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Safety
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LS68*-DA-F2
LS68*-DA-F1
Warning!
Danger due to visible class 1M laser light
f the laser light is pointed at people, especially in the dark, this can lead to
irritation and result in the risk of an accident due to glare.
f the laser light is viewed through optical instruments (magnifying glasses,
microscopes, telescopes, or binoculars, etc.), it may damage the observer's eyes
due to a burning lens effect.
nstall the device so that the warnings are clearly visible and legible.
Do not point the laser light at people.
Do not look at the laser light using optical instruments.
The maintenance and repair of a class 1M laser must be performed by authorized
service personnel only.
LAS ER LI GH T
DO N OT VIEW D IRECT LY
WIT H OP TIC AL
INS TRU MEN TS
LAS ER 1M L ASE R PR ODU CT
IEC 60 825-1: 20 07 CERTI FIED.
COMPL IES WITH 2 1 CFR 104 0.10
AND 104 0.11 EXCEPT FO R DEVIA-
TIONS PU RSUANT TO LAS ER NOTIC E
NO. 50, DATED J UNE 24, 200 7
LUMIÈRELASER
NEPAS REGARDERDIRECTEMENT
AVECDESINSTRUMENTSOPTIQUES
PRODUITLASERCLASSE1M
CERTIFIÉ CEI 60825-1 : 2007.
CONFORME AUX NORMES 21 CFR
1040.10 ET 1040.11 À L’EXCEPTION
DES ÉCARTS CONFORMÉMENT
À LA NOTICE DU LASER
N° 50, DATÉEDU 24 JUIN 2007 .
LASER L IGHT
DO NOT VIEW DIRECT LY
WI TH OPTICA L
IN STRUME NTS
LASER 1 M LASER PRO DUCT
IEC 60825-1: 2007 CERTIFIED.
COMPLIES WITH 21 CFR 1040.10
AND 1040.11 EXCEPT FOR DEVIA-
TIONS PURSUANT TO LASER NOTICE
NO. 50, DATED JUNE 24, 2007
LUMIÈRE LASER
NE PAS REGARDER DIRECTEMENT
AVEC DES INSTRUMENTS OPTIQUES
PRODUIT LASER CLASSE 1M
CERTIFIÉ CEI 60825-1 : 2007.
CONFORME AUX NORMES 21 CFR
1040.10 ET 1040.11 À L’EXCEPTION
DES ÉCARTS CONFORMÉMENT
À LA NOTICE DU LASER
N° 50, DATÉE DU 24 JUIN 2007.
Warning!
Danger due to invisible class 1M laser beam
f the laser light is viewed through optical instruments (magnifying glasses,
microscopes, telescopes, or binoculars, etc.), it may damage the observer's eyes
due to a burning lens effect.
nstall the device so that the warnings are clearly visible and legible.
Do not look at the laser light using optical instruments.
The maintenance and repair of a class 1M laser must be performed by authorized
service personnel only.

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LS684*
Safety
Only use recommended original accessories.
The operating company bears responsibility for observing locally applicable
safety regulations.
User modification and or repair are dangerous and will void the warranty and
exclude the manufacturer from any liability. f serious faults occur, stop using the
device. Secure the device against inadvertent operation. n the event of repairs,
return the device to your local Pepperl+Fuchs representative or sales office.
INV IS IBL E LAS ER R ADI ATIO N
DO N OT VIEW D IRECT LY
WIT H OP TIC AL
INS TRU ME NTS
LAS ER 1M LAS ER P ROD UCT
IEC 60 825-1: 2 007 CERTI FIED.
COMPL IES WITH 2 1 CFR 104 0.10
AND 10 40.11 E XCEPT FOR D EVIA-
TIONS PU RSUANT TO L ASER NOTI CE
NO. 50, DATED JU NE 24, 2007
RAYONNEMENTLASER IN VISIBLE
NEPAS REGARDERDIRECTEMENT
AVECDESINSTRUMENTSOPTIQUES
PRODUITLASERCLASSE1M
CERTIFIÉ CEI 60825-1 :2007.
CONFORME AUXNORMES 21 CFR
1040.10 ET 1040.11 À L’EXCEPTION
DES ÉCARTS CONFORMÉMENT
À LA NOTICE DU LASER
N° 50, DATÉEDU 24 JUIN 2007.
IN VISIBLE LASER RAD IATION
DO N OT VIEW D IRECTLY
WI TH OPTICAL
IN STRUMENTS
LASER 1M L ASER P RODU CT
IEC 60825-1: 2007 CERTIFIED.
COMPLIES WITH 21 CFR 1040.10
AND 1040.11 EXCEPT FOR DEVIA-
TIONS PURSUANT TO LASER NOTICE
NO. 50, DATED JUNE 24, 2007
RAYONNEMENT LASER IN VISIBLE
NE PAS REGARDER DIRECTEMENT
AVEC DES INSTRUMENTS OPTIQUES
PRODUIT LASER CLASSE 1M
CERTIFIÉ CEI 60825-1 : 2007.
CONFORME AUX NORMES 21 CFR
1040.10 ET 1040.11 À L’EXCEPTION
DES ÉCARTS CONFORMÉMENT
À LA NOTICE DU LASER
N° 50, DATÉE DU 24 JUIN 2007.
Caution!
Danger due to inadequate operating or adjustment equipment
Use of operating or adjusting equipment other than that specified here or
operating and adjusting procedures other than those described in this document
may result in harmful laser beam exposure.
Only use operating and adjustment equipment that is recommended for the
device described here. Follow the procedures described for this device
concerning operation and adjustment.

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Product Description
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3 Product Description
3.1 ntended Use
The optical data coupler serves as an optical link between two Ethernet devices;
ideally, one of these devices is mobile. The opening angle is optimized for
operations in high-rack storage.
Devices in industrial Ethernet networks (e.g., with PROF NET, EtherNet/ P, and
other Ethernet protocol designs) can be connected to the optical data coupler.
The physical transfer takes place with 100 MBit/s full duplex. The connection to
multiple devices requires network switches that have been certified for use with
the bus system in question. All layer 2 telegrams ( EEE 802.3 Clause 25) are
physically transported. Since no telegrams are saved, the transfer takes place
without any delay.
Devices with a transfer rate of 10 MBit/s can be connected via a network switch.
The optical data coupler uses a semiconductor laser as an optical emitter. The
dilation of the light beam and the use of return map blocks guarantee that the
devices are harmless in accordance with laser class 1M. The emitted beam must
not be viewed with telescopes or binoculars from distances of less than 20 m. At
greater distances, the limit values for laser class 1M are not exceeded, even when
viewed through a telescope with a 50 mm aperture.
Optical ata transfer in real time
The optical data coupler offers robust optical data transfer in real time for industrial
Ethernet systems such as PROF NET RT and EtherCAT.
The automatic runtime compensation allows a consistent throughput time for
synchronous, jitter-free switching operations and control processes at both ends
of the transmission path. This takes place over any distance and with any driving
dynamics.
The connection status is quickly recognized and transmitted across all segments
of the data transfer. The optical data coupler therefore helps the network's
redundancy mechanisms to immediately bridge faulty paths with unique
localization and enables a high level of availability and clear diagnosis.
Compatibility with LS680, LS682
Due to technical changes for the runtime compensation and the signaling of the
link status, mixed operation of LS684 with LS680 receivers or LS682 receivers is
not possible.
f mixed operation is attempted, the bar graph display shows a reception level.
However, Ethernet data cannot be exchanged.
LS684*

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LS684*
Product Description
Runtime compensation
Real-time Ethernet systems allow cycle times in the microsecond range. Process
data is synchronized throughout the system on the basis of a distributed time
signal. The transmission paths between the network devices are measured for
this purpose.
The mechanisms used are intended for wired transfer. Variations in drift and
temperature affect the throughput time of the networks. These changes lead to
minor runtime differences over minutes or hours and are identified and
compensated for.
For optical transmission paths with mobile devices, the throughput time varies
depending on the distance between the stations. Typical driving dynamics of
several meters per second and high acceleration result in short-term runtime
changes. ndustrial Ethernet systems provide no compensation mechanisms for
these situations. There is a runtime difference of 0.5 µs for each transmission
direction if the receiver is at the beginning or end of a 150 m transmission path.
The optical data coupler compensates for distance changes in real time. The
transfer time between the two sides of the optical connection remains constant,
even at high acceleration. Packages with process data and time synchronization
always reach the opposite side at the scheduled time. Fixed throughput times
apply for a transmission path of the optical data coupler; see table.
These runtimes must be taken into account when planning the Ethernet system.

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Product Description
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Throughput times of the LS684 optical ata coupler
3.2 Model Varieties
The optical data coupler is available in different versions:
LS684 mo els
Effective operating
istance (meters)
Throughput time
(per irection, in µs)
Jitter (in
ns)
LS684-DA-EN/F1
LS684-DA-EN/F2
150 m 2.9 µs +/- 40 ns
LS684-DA-EN/F1/35
LS684-DA-EN/F2/35
300 m 3.4 µs +/- 40 ns
Table 3.1 Throughput time depending on the model type of the LS684 optical data
coupler. The runtimes are calculated based on a 20 m connection cable.
The length specifications relate to the sum of the connection cable length at
both ends of a transmission path of the optical data coupler.
f the length of the cable connections between the optical data coupler and
the next device is more than 20 m, the additional cable length is to be added
to the above-mentioned value in increments of 5 ns/m (0.005 µs/m).
tem number Model number Description
309502 LS684-DA-EN/F1 Standard version, 150 m detection range,
frequency 1
309505 LS684-DA-EN/F2 Standard version, 150 m detection range,
frequency 2
309506 LS684-DA-EN/F1/35 Version with increased detection range of
300 m, frequency 1
309507 LS684-DA-EN/F2/35 Version with increased detection range of
300 m, frequency 2
309508 LS684-DA-EN/F1/146 Version for deep-freeze applications,
150 m detection range, frequency 1
309510 LS684-DA-EN/F2/146 Version for deep-freeze applications,
150 m detection range, frequency 2
309511 LS684-DA-EN/F1/35/146 Version with increased detection range of
300 m, for deep-freeze applications,
frequency 1
309512 LS684-DA-EN/F2/35/146 Version with increased detection range of
300 m, for deep-freeze applications,
frequency 2

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LS684*
Product Description
3.3 Displays and Operating Elements
3.4 Signaling of the Connection Status
Real-time Ethernet systems monitor the distribution of process data and respond
quickly to changes in the connection status. The faster and more clearly an
interruption in the data traffic is detected, the faster and more targeted the
diagnosis and remedial measures: unreachable segments can be bridged or
supplied via redundant paths. The location of the fault can be detected
immediately.
The optical data coupler continuously monitors the cable connection to the
connected devices and the optical connection. The monitoring includes a
unidirectional interruption of the optical transmission and the termination of the
cable connection on the opposite side.
1 PWR
Lights up as soon as the optical data coupler receives operating voltage in the correct
manner.
2 ERR
Status of the overall connection. Lights up in the event of errors (insufficient signal
strength to establish the connection, e.g., misalignment, light beam obstructions, extra-
neo us light in the optical channel). The LED does not light up during normal operation.
3 LAN
Status of the cable connection. The LAN LED (yellow) indicates a physical connection
to the next device on the cable. f this LED is not on, this indicates a connection problem.
The LAN LED lights up steadily when no data is being transported. Flashing of the LAN
LED indicates the presence of data packets on the LAN.
4 OPT
Status of the optical connection. The OPT LED flashes when the optical connection is
stabilized through correct alignment.
5 SIGNAL
The optical signal strength is displayed as an alignmen t aid during adjustment of the op-
tical data couplers. Additional information see chapter 5.1.
6 LASER ERROR
f the permissible internal temperature is exceeded, this LED flashes. The transmission
power is not reduced. f an internal activation error such as overcurrent is detected, the
laser is switched off, and an attempt is then made every second to resume normal oper-
ation. Meanwhile, the laser-ERROR LED lights for 30 s to 60 s, even if the process was
a one-off, e.g., as the result of an EMC event.
PWR S I G N A L
LASER
ERROR
LAN
OPT
ERR
1 2 3 4 5 6

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Product Description
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f the optical data coupler detects an interruption on one of the sections, this
information is displayed immediately with the status "Link Down" on both sides of
the LS684 path via the Ethernet cable. As soon as the interruption is resolved, the
cable connection on both sides will be restored.
n addition to the usual display function, the optical data coupler signals the status
of the network connections, see table.
LS684 LED status in icators for the status of the network connections
LINK status
ERR LED
(re )
LAN LED
(yellow)
OPT LED
(green)
Connection establishe on both si es Off On On
Activity Cable reception Flashing
Optical reception Flashing
Transmission error On
Connection interrupte ... ...
... locally Optical On Off Off
... locally Cable On Off On
... opposite side Optical or cable Flashing Off On
Connection is establishe On Flashing On
PWR S I G N A L
LASER
ERROR
LAN
OPT
ERR

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LS684*
Product Description
3.5 nterfaces and Connections
The following device connections are located on the device:
Power supply
A 4-pin M12 A-coded plug is located on the rear of the housing to connect the
power supply and the alarm output.
Figure 3.1 Connection layout fo r power supply and alarm output
Service
There is an 8-pin M12 plug on the rear of the housing for servicing. This plug is for
internal use at Pepperl+Fuchs.
Network
A 4-pin M12 D-coded socket is located on the rear of the housing for connecting
to the Ethernet network.
Pinout for M12 plug, 4-pin, A-co e
124 V power supply
2n.c.
3Ground (GND)
4Alarm
Pinout for M12 plug, 8-pin
1
3
4
2
1
4
6
7
8
53
2

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Product Description
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Figure 3.2 Connection layout for network socket
3.6 Scope of Delivery
■ LS684
■ Package insert
3.7 Accessories
3.7.1 Mounting Accessories
The following mounting accessories are available:
3.7.2 Connecting Cables
The following female single-ended cordsets are available for selection:
Pinout for M12 socket, 4-pin, D-co e
1Transmit data (+)
2Receive data (+)
3Transmit data (-)
4Receive data (-)
1
3
42
Designation Description
OMH-LS610-01 Adjustment unit
OMH-LS610-02 Direct mounting set (4 M4 threaded inserts)
Protective cap LS610
accessories
Additional fastening for transport and storage.
A protective cap has already been placed onto the service
connector.
OMH-LS610-03 Deviation mirror
Designation Description
V1-G-2M-PVC Female single-ended cordset, straight, M12, 4-pin, PVC
cable, length: 2 m
V1-G-2M-PUR Female single-ended cordset, straight, M12, 4-pin, PUR
cable, length: 2 m
V1-M-5M-PVC Female single-ended cordset, straight, M12, 4-pin, PVC
cable, length: 5 m
V1-M-5M-PUR Female single-ended cordset, straight, M12, 4-pin, PUR
cable, length: 5 m

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LS684*
Product Description
3.7.3 Network Connection Cable
The sensor is connected to the network using an M12 plug.
V1-G-PG9 Female single-ended cordset, straight, M12, 4-pin, field
attachable
V1-W-PG9 Female single-ended cordset, angled, M12, 4-pin, field
attachable
V1-W-2M-PVC Female single-ended cordset, angled, M12, 4-pin, PVC cable,
length: 2 m
V1-W-2M-PUR Female single-ended cordset, angled, M12, 4-pin, PUR
cable, length: 2 m
V1-W-5M-PVC Female single-ended cordset, angled, M12, 4-pin, PVC cable,
length: 5 m
V1-W-5M-PUR Female single-ended cordset, angled, M12, 4-pin, PUR
cable, length: 5 m
Designation Description
Designation Description
V1SD-G-2M-PUR-ABG-V45-G Patch cable M12 to RJ45, length: 2 m
V1SD-G-5M-PUR-ABG-V45-G Patch cable M12 to RJ45, length: 5 m
V1SD-G-ABG-PG9 Single-ended male cordset M12, D-coded, 4-pin for
bus cable, self-assembly

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nstallation
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4 nstallation
4.1 Preparation
Unpacking the device
1. Check the packaging and contents for damage.
n the event of damage, inform the shipping company and notify the
supplier.
2. Check the package contents against your order and the shipping documents
for completeness and accuracy.
Should you have any questions, direct them to Pepperl+Fuchs.
3. Retain the original packaging in case the device is to be stored or shipped
again at a later date.
4.2 Mounting
The device has two mounting holes and four retaining feet for easy mounting of
the optical data coupler in your plant. f required, M4 inserts can be pressed into
these four retaining feet. This allows existing adjustment and mounting options to
be used. Further mounting aids for quick adjustment are available in the range of
device accessories. See chapter 3.7.1
Warning!
Danger due to visible class 1M laser light
f the laser light is pointed at people, especially in the dark, this can lead to
irritation and result in the risk of an accident due to glare.
f the laser light is viewed through optical instruments (magnifying glasses,
microscopes, telescopes, or binoculars, etc.), it may damage the observer's eyes
due to a burning lens effect.
nstall the device so that the warnings are clearly visible and legible.
Do not point the laser light at people.
Do not look at the laser light using optical instruments.
The maintenance and repair of a class 1M laser must be performed by authorized
service personnel only.
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LS684*
nstallation
Mounting using OMH-LS610-01
The mounting aid (OMH-LS610-01) comprises a mounting bracket and a
preassembled adjustment device for the x and y direction. The adjustment device
is attached to the mounting bracket using two M4 nuts and a central M6 fixing
screw.
The adjustment device of the mounting aid enables the desired beam direction of
the optical data coupler to be set using ±90° rotation. For details about
adjustment, see chapter 5.1.
LS68 housing imensions*
LAN
Socket M12 x 1, 4-pin
D-coded
Service
Connector M12 x 1, 8-pin
A-coded
Power
Socket M12 x 1, 4-pin
A-coded
Earthing plate
Output Laser, class 1M laser productAlignment aid
Receiver
171
170
81
90
36
97.5
Caution!
Danger due to inadequate operating or adjustment equipment
Use of operating or adjusting equipment other than that specified here or
operating and adjusting procedures other than those described in this document
may result in harmful laser beam exposure.
Only use operating and adjustment equipment that is recommended for the
device described here. Follow the procedures described for this device
concerning operation and adjustment.

LS684*
nstallation
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Assembling the mounting aid and attaching the device
To assemble the mounting aid and attach the optical data coupler to the
adjustment device, proceed as follows:
1. Place the adjustment device on the mounting bracket in the required direction
and tighten the two M4 nuts.
2. Screw in the central M6 fixing screw, but do not tighten it yet.
3. Hold the device above the adjustment device with the retaining feet
positioned over the openings.
4. With your free hand, squeeze the two front latches on the adjustment devices
together.
5. Click the device into the openings. Make sure that the retaining feet of the
device are engaged far enough that you can push the two latches outward
fully. To do this, push in the center of the device, applying some force from
above if necessary.
The latches will spring all the way outward again.

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LS684*
nstallation
6. Now perform the required adjustment. See chapter 5.1.
7. Once you have made the adjustments, tighten the central M6 fixing screw to
fix the position in the horizontal direction.
4.3 Connection
Connecting the supply voltage
The device conforms to protection class . Note that the power must be supplied
as a protective extra-low voltage (PELV) and must be limited according to
UL Class 2 (100 W). The optical data coupler is supplied with a direct voltage of
18 VDC to 30 VDC. The insulation test voltage of shields against power/GND is
50 V maximum.
To supply voltage to the device, proceed as follows:
1. Plug the prepared connection cable with the 4-pin M12 socket into the plug
provided on the rear of the housing.
2. Screw the lock nut onto the connector as far as it will go.
This ensures that the power cable cannot be pulled out inadvertently.
3. Connect the supply voltage to the cable provided.
The device is ready for operation.
Grounding/shielding
This groun ing is protective groun ing an is not for personal protection.
The grounding is intended exclusively for the derivation of cable-related faults.
Functional grounding of the cable shields is required to provide immunity to
interference.
To ground the device, proceed as follows:
1. Use a ground cable with a 6 mm flat connector and an adequate cross section
(≥1.5 mm²).
2. Plug the flat connector onto the pre-mounted insertion prong on the device.