Leuze DDLS 508 Operating Instructions

DDLS 508

Optical Data Transmission for 100 Mbit/s
Ethernet – Version F3/F4

EN 2016/11 - 50133576

We reserve the right to

make technical changes

O r i g i n a l o p e r a t i n g i n s t r u c t i o n s

Table of contents

Table of contents

1 About this document ............................................................................................5

1.1 Used symbols and signal words .............................................................................................5

2 Safety .....................................................................................................................7

2.1 Intended use ...........................................................................................................................7

2.2 Foreseeable misuse ............................................................................................................... 7

2.3 Competent persons ................................................................................................................ 8

2.4 Disclaimer ...............................................................................................................................8

2.5 Laser safety notices................................................................................................................ 8

3 Device description ..............................................................................................11

3.1 Device overview.................................................................................................................... 11

3.1.1 General information...........................................................................................................11

3.1.2 Performance characteristics and delivery options............................................................. 12

3.1.3 Accessories .......................................................................................................................12

3.1.4 Operating principle ............................................................................................................12

3.2 Connection technology .........................................................................................................13

3.3 Indicators and operational controls....................................................................................... 13

3.3.1 Indicators and operational controls in the control panel ....................................................13

3.3.2 Indicators in the optics area ..............................................................................................20

3.3.3 Indicators in the connection area ......................................................................................21

4 Mounting..............................................................................................................22

4.1 Mounting instructions............................................................................................................ 22

4.2 Mounting with alignment laser and level............................................................................... 23

4.2.1 Horizontal mounting (travel axis) with the alignment laser ................................................23

4.2.2 Vertical mounting (lifting axis) with the alignment laser..................................................... 28

4.3 Mounting without alignment laser .........................................................................................29

4.3.1 Horizontal mounting (travel axis) without alignment laser .................................................30

4.3.2 Vertical mounting (lifting axis) without alignment laser...................................................... 30

4.4 Mounting tolerances of the devices ......................................................................................32

4.5 Mounting distance for parallel operation of data transmission systems ............................... 33

4.6 Mounting distance for parallel operation with AMS300/AMS200 laser measurement sys-

tems ......................................................................................................................................35

4.7 Mounting distance for parallel operation with DDLS200 data transmission system ............35

4.8 Cascading (series connection) of multiple data transmission systems................................. 35

5 Electrical connection..........................................................................................37

5.1 Overview............................................................................................................................... 37

5.2 POWER (supply voltage / switching input and switching output) ......................................... 38

5.3 BUS (bus input, Ethernet)..................................................................................................... 39

6 Starting up the device ........................................................................................40

6.1 Setting the operating mode................................................................................................... 40

6.2 Fine adjustment ....................................................................................................................42

6.2.1 General procedure ............................................................................................................42

6.2.2 Fine adjustment with the single-handed adjustment (SHA) process................................. 42

6.2.3 Fine adjustment without the single-handed adjustment (SHA) process............................ 44

7 Diagnostics and troubleshooting......................................................................46

7.1 Error displays of the operating state LEDs ...........................................................................46

7.2 Error displays and STATUS LED for remote diagnosis ........................................................49

7.3 Error displays of the operating mode LEDs ..........................................................................49

Leuze electronic DDLS 508 3

Table of contents

8 Care, maintenance and disposal .......................................................................51

8.1 Cleaning................................................................................................................................ 51

8.2 Servicing ...............................................................................................................................51

8.3 Disposing ..............................................................................................................................51

9 Service and support ...........................................................................................52

9.1 What to do should servicing be required? ............................................................................ 52

10 Technical data .....................................................................................................53

10.1 General specifications .......................................................................................................... 53

10.1.1 Device without heater........................................................................................................53

10.1.2 Device with heating ...........................................................................................................55

10.2 Dimensioned drawings ......................................................................................................... 56

10.3 Dimensional drawings: Accessories .....................................................................................58

11 Order guide and accessories.............................................................................59

11.1 Nomenclature ....................................................................................................................... 59

11.2 Cables accessories............................................................................................................... 59

11.3 Other accessories................................................................................................................. 60

12 EC Declaration of Conformity ............................................................................61

Leuze electronic DDLS 508 4

1 About this document

1.1 Used symbols and signal words

Tab.1.1: Warning symbols and signal words

Symbol indicating dangers to persons

Symbol indicating dangers from harmful laser radiation

Symbol indicating possible property damage

NOTE Signal word for property damage

Indicates dangers that may result in property damage if the measures for
danger avoidance are not followed.

CAUTION Signal word for minor injuries

Indicates dangers that may result in minor injury if the measures for danger
avoidance are not followed.

About this document

WARNING Signal word for serious injury

Indicates dangers that may result in severe or fatal injury if the measures
for danger avoidance are not followed.

Tab.1.2: Other symbols

Symbol for tips

Text passages with this symbol provide you with further information.

Symbol for action steps

Text passages with this symbol instruct you to perform actions.

Symbol for action results

Text passages with this symbol describe the result of the preceding action.

Leuze electronic DDLS 508 5

About this document

Tab.1.3: Terms and abbreviations

DDLS Optical transceiver for digital data transmission

EN European standard

FE Functional earth

IO or I/O Input/Output

MAC address Media Access Control address; hardware address of a device in the net-

work

NEC National Electric Code; safety standard for electrical installations in the

U.S.A.

PELV Protective Extra-Low Voltage; protective extra-low voltage with reliable dis-

connection

HBS High-bay storage device

SHA Single-Handed Adjustment; fine adjustment of the devices by one person

TCP/IP Transmission Control Protocol/Internet Protocol; Internet protocol family

UDP User Datagram Protocol; network transmission protocol

UL Underwriters Laboratories

Leuze electronic DDLS 508 6

2 Safety

This optical data transmission system was developed, manufactured and tested in line with the applicable
safety standards. It corresponds to the state of the art.

2.1 Intended use

Devices of the DDLS500 series have been designed and developed for the optical transmission of data in
the infrared range.

Areas of application

Devices of the DDLS500 series are designed for the following areas of application:

• Data transmission between stationary and/or moving devices. The devices must – with respect to the
transmission beam spread - be positioned opposite one another without interruption. A data transmis­sion path consists of two devices designated with “FrequencyF3" and “FrequencyF4".

• Data transmission between two mutually opposing devices, whereby each device can rotate 360°. The
middle axes of the receiver lenses must – with respect to the transmission beam spread – be posi­tioned opposite one another without interruption during the rotation.

For rotary transmission, a minimum distance of 500mm is necessary between the two devices.

NOTICE

For information about possible restrictions regarding the transmission of special protocols see
chapter 3.1.2 "Performance characteristics and delivery options".

Safety

CAUTION

Observe intended use!

The protection of personnel and the device cannot be guaranteed if the device is operated in a
manner not complying with its intended use.

Ä Only operate the device in accordance with its intended use.
Ä LeuzeelectronicGmbH+Co.KG is not liable for damages caused by improper use.
Ä Read these operating instructions before commissioning the device. Knowledge of the oper-

ating instructions is an element of proper use.

NOTICE

Comply with conditions and regulations!

Ä Observe the locally applicable legal regulations and the rules of the employer's liability insur-

ance association.

2.2 Foreseeable misuse

Any use other than that defined under "Intended use" or which goes beyond that use is considered im­proper use.

In particular, use of the device is not permitted in the following cases:

• in rooms with explosive atmospheres

• for medical purposes

NOTICE

Do not modify or otherwise interfere with the device!

Ä Do not carry out modifications or otherwise interfere with the device. The device must not be

tampered with and must not be changed in any way.

Ä The device must not be opened. There are no user-serviceable parts inside.
Ä Repairs must only be performed by Leuze electronic GmbH + Co. KG.

Leuze electronic DDLS 508 7

2.3 Competent persons

Connection, mounting, commissioning and adjustment of the device must only be carried out by competent
persons.

Prerequisites for competent persons:

• They have a suitable technical education.

• They are familiar with the rules and regulations for occupational safety and safety at work.

• They are familiar with the original operating instructions of the device.

• They have been instructed by the responsible person on the mounting and operation of the device.

Certified electricians

Electrical work must be carried out by a certified electrician.

Due to their technical training, knowledge and experience as well as their familiarity with relevant standards
and regulations, certified electricians are able to perform work on electrical systems and independently de­tect possible dangers.

In Germany, certified electricians must fulfill the requirements of accident-prevention regulations BGV A3
(e.g. electrician foreman). In other countries, there are respective regulations that must be observed.

2.4 Disclaimer

LeuzeelectronicGmbH+Co.KG is not liable in the following cases:

• The device is not being used properly.

• Reasonably foreseeable misuse is not taken into account.

• Mounting and electrical connection are not properly performed.

• Changes (e.g., constructional) are made to the device.

Safety

2.5 Laser safety notices

Laser diode of the transmitter – laser class 1M

WARNING

INVISIBLE LASER RADIATION – LASER CLASS 1M
Never observe directly using telescope optics!

The device fulfills the IEC60825-1:2007 (EN60825-1:2007) requirements for a product in laser
class1M as well as the U.S.21CFR1040.10 regulations with deviations corresponding to

"Laser Notice No.50" from June 24th, 2007.

Ä Looking into the beam path for extended periods using telescope optics may damage the

eye's retina. Never look using telescope optics into the laser beam or in the direction of re­flecting beams.

Ä CAUTION! The use of operating or adjusting devices other than those specified here or car-

rying out of differing procedures may lead to dangerous exposure to radiation.
The use of optical instruments or devices (e.g., magnifying glasses, binoculars) with the
product will increase eye danger.

Ä Observe the applicable statutory and local laser protection regulations.
Ä The device must not be tampered with and must not be changed in any way.

There are no user-serviceable parts inside the device.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.

The device emits invisible laser radiation with a wavelength of 785nm (device with designation “Fre­quencyF3") or 852nm (device with designation “FrequencyF4") through the laser aperture of the optical
window. The opening angle of the beam cone is ≤1° (± 0.5°).

The power density distribution in the light spot is homogeneous; there is no elevation of power density in
the center of the light spot. The average emitted laser power of the device is <12mW. For transmission of
the data, the emitted laser radiation is amplitude modulated (on-off keying). Pulses and pulse pauses of the
emitted laser light are between 8ns and 32ns long. The laser power emitted during the pulses is <24mW.

Leuze electronic DDLS 508 8

1

2

3

1 Laser aperture – alignment laser

UNSICHTBARE LASERSTRAHLUNG

Nicht direkt mit Teleskopoptiken betrachten!

LASER KLASSE 1M

DIN EN 60825-1:2008-05

Max. Leistung (peak):
Impulsdauer:
Wellenlänge:

RADIAZIONE LASER INVISIBILE

Non guardare direttamente con ottiche telescopiche!

APARRECCHIO LASER DI CLASSE 1M

EN 60825-1:2007

Potenza max. (peak):
Durata dell'impulso:
Lunghezza d'onda:

< 36 mW

32

n

s

785 nm

< 36 mW

32 ns

785 nm

INVISIBLE LASER RADIATION

Never observe directly using telescope optics!

CLASS 1M LASER PRODUCT

EN 60825-1:2007

Maximum Output (peak):
Pulse duration:
Wavelength:

RAYONNEMENT LASER INVISIBLE

Ne pas regarder directement avec des optiques télescopiques !

APPAREIL À LASER DE CLASSE 1M

EN 60825-1:2007

Puissance max. (crête):
Durée d`impulse:
Longueur d`ande émis:

< 36 mW

32 ns

785 nm

< 36 mW

32 ns

785 nm

RADIACIÓN LÁSER INVISIBLE

¡No mirar directamente con ópticas telescópicas!

PRODUCTO LÁSER DE CLASE 1M

EN 60825-1:2007

Potencia máx. (peak):
Duración del impulso:
Longitud de onda:

RADIACAO LASER INVISIVEL

Não olhe diretamente para as óticas telescópicas!

EQUIPAMENTO LASER CLASSE 1M

EN 60825-1:2007

Potência máx. (peak):
Período de pulso:
Comprimento de onda:

< 36 mW

32

n

s

785 nm

< 36 mW

32

n

s

785 nm

INVISIBLE LASER RADIATION

Never observe directly using telescope optics!

CLASS 1M LASER PRODUCT

IEC 60825-1:2007

Complies with 21 CFR 1040.10

Maximum Output (avg):
Pulse duration:
Wavelength:

⺞㉒匘䧋䦚ₜⒿ䤓䉏⏘⺓兎

䰐㷱抩扖㦪扫柫屑䦚᧝

1M伊䉏⏘ℶ❐

GB7247.1-2001

㦏⮶戢⒉᧤⽿⋋᧥

厘⑁㖐兼㢅梃

㽱栎

< 36 mW

32

n

s

785 nm

< 36 mW

32 ns

785 nm

2 Laser aperture – transmitter

3 Laser warning sign

Safety

Fig.2.1: Laser apertures

Leuze electronic DDLS 508 9

Fig.2.2: Laser warning and laser information signs for devices with frequencyF3

Safety

UNSICHTBARE LASERSTRAHLUNG

Nicht direkt mit Teleskopoptiken betrachten!

LASER KLASSE 1M

DIN EN 60825-1:2008-05

Max. Leistung (peak):
Impulsdauer:
Wellenlänge:

RADIAZIONE LASER INVISIBILE

Non guardare direttamente con ottiche telescopiche!

APARRECCHIO LASER DI CLASSE 1M

EN 60825-1:2007

Potenza max. (peak):
Durata dell'impulso:
Lunghezza d'onda:

< 36 mW

32

n

s

852 nm

< 36 mW

32 ns

852 nm

INVISIBLE LASER RADIATION

Never observe directly using telescope optics!

CLASS 1M LASER PRODUCT

EN 60825-1:2007

Maximum Output (peak):
Pulse duration:
Wavelength:

RAYONNEMENT LASER INVISIBLE

Ne pas regarder directement avec des optiques télescopiques !

APPAREIL À LASER DE CLASSE 1M

EN 60825-1:2007

Puissance max. (crête):
Durée d`impulse:
Longueur d`ande émis:

< 36 mW

32 ns

852 nm

< 36 mW

32 ns

852 nm

RADIACIÓN LÁSER INVISIBLE

¡No mirar directamente con ópticas telescópicas!

PRODUCTO LÁSER DE CLASE 1M

EN 60825-1:2007

Potencia máx. (peak):
Duración del impulso:
Longitud de onda:

RADIACAO LASER INVISIVEL

Não olhe diretamente para as óticas telescópicas!

EQUIPAMENTO LASER CLASSE 1M

EN 60825-1:2007

Potência máx. (peak):
Período de pulso:
Comprimento de onda:

< 36 mW

32

n

s

852 nm

< 36 mW

32

n

s

852 nm

INVISIBLE LASER RADIATION

Never observe directly using telescope optics!

CLASS 1M LASER PRODUCT

IEC 60825-1:2007

Complies with 21 CFR 1040.10

Maximum Output (avg):
Pulse duration:
Wavelength:

⺞㉒匘䧋䦚ₜⒿ䤓䉏⏘⺓兎

䰐㷱抩扖㦪扫柫屑䦚᧝

1M伊䉏⏘ℶ❐

GB7247.1-2001

㦏⮶戢⒉᧤⽿⋋᧥

厘⑁㖐兼㢅梃

㽱栎

< 36 mW

32

n

s

852 nm

< 36 mW

32 ns

852 nm

Fig.2.3: Laser warning and laser information signs for devices with frequencyF4

Alignment laser (optional) – laser class 1

WARNING

LASER RADIATION – LASER CLASS 1

The device satisfies the requirements of IEC60825-1:2007 (EN60825-1:2007) safety regula­tions for a product of laser class1 as well as the U.S.21CFR1040.10 regulations with devia­tions corresponding to "Laser Notice No.50" from June 24, 2007.

Ä Observe the applicable statutory and local laser protection regulations.
Ä The device must not be tampered with and must not be changed in any way.

There are no user-serviceable parts inside the device.

Ä Repairs must only be performed by Leuze electronic GmbH + Co. KG.

NOTICE

Devices with integrated alignment laser can be identified by part number code L in the part des­ignation, e.g., DDLS5xxXXX.4L.

Laser class1M also applies for devices with integrated alignment laser.

Leuze electronic DDLS 508 10

3 Device description

14

3

4

5

13

6

7

2

8

10

1

11

9

16

15

12

3.1 Device overview

3.1.1 General information

The DDLS508 optical data transmission system transmits Ethernet network data on the basis of TCP/IP or
UDP transparently and without contact or wear via infrared light.

A MAC address or IP address configuration is not necessary.

A transmission path consists of two mutually opposing devices.

• One device is designated with “Frequency F3", the other with “Frequency F4".

• The devices can also be assigned via part number code DDLS5XX…3… and DDLS5XX…4….

Device description

1 Device housing 9 Connection area

2 Mounting plate 10 Operating mode selector switch

3 Planar surface for supporting a bubble level or

alignment straightedge

4 Receiver optics 12 Alignment screw for horizontal alignment

5 Transmitter optics 13 STATUS LED for remote diagnosis

6 Alignment laser for mounting support (optional) 14 Supporting edge for bubble level or alignment straight-

7 LED indicators in the control panel 15 Ethernet connection, M12

8 Spirit level (for devices with alignment laser) 16 POWER connection, M12

Fig.3.1: Device construction

11 Alignment screw for vertical alignment

edge

Leuze electronic DDLS 508 11

3.1.2 Performance characteristics and delivery options

• Protocol-independent data transmission of all TCP/IP and UDP protocols, e.g.

• EtherCat (with restrictions on functions "Link Fault Pass Through" and "Distributed Clock")

• PROFINET RT

• EthernetIP (Rockwell)

• …and more

• Data transmission over a range of up to 200m

• Optional alignment laser including spirit level for mounting support

• Planar surfaces on top and side for supporting a level or alignment straightedge

• Single-handed adjustment (SHA) for aligning the devices by one person

• Optional variants with integrated heating for operating temperatures below -5°C

Use to ‑35°C

• Transmission optics with larger beam spread on request

NOTICE

The PROFINET IRT protocol is a special case. The DDLS508 cannot satisfy the specifications
of the transmission criteria for PROFINET IRT.

Ä For details on the delay times or the jitter-relevant device data, see chapter 4.8 "Cascading

(series connection) of multiple data transmission systems".

Device description

3.1.3 Accessories

For exact details and order information, see chapter 11 "Order guide and accessories".

• Adapter plate for installing instead of a DDLS200

• Ready-made cable for M12 connections

• Customizable connector plug

3.1.4 Operating principle

A pair of devices is necessary for establishing a data transmission path. To prevent the devices from mutu­ally interfering with one another during data transmission, they use different frequencies.

• one device with frequency F3

Part designation: DDLS5XXxxx.3YY

Designation on the name plate: FrequencyF3

• one device with frequency F4

Part designation: DDLS5XXxxx.4YY

Designation on the name plate: FrequencyF4

NOTICE

Installation for devices with an operating range of 200m.

Ä Always install the Frequency F4 device as stationary device for devices with an operating

range of 200m (DDLS5XX200…).

Leuze electronic DDLS 508 12

Device description

1

2

34

1 Device with frequency F3 (DDLS5XXxxx.3YY)

2 Device with frequency F4 (DDLS5XXxxx.4YY)

3 FrequencyF3

4 FrequencyF4

Fig.3.2: Optical data transmission on two frequencies

The received signal level (SIGNALQUALITY) is measured on both devices. If the received signal level
drops below a certain value (SIGNALQUALITY indicator shows only red and orange), the intensity warning
is activated.

The intensity warning is applied on switching output IO1 of the POWER connection.

3.2 Connection technology

A-coded, M12 connection for the supply voltage with integrated switching input and output.

D-coded, M12 connection for the Ethernet connection.

3.3 Indicators and operational controls

3.3.1 Indicators and operational controls in the control panel

Operating mode selector switch and operating mode indicator

• Operating mode selector switch [MODE]

The operating mode selector switch is used to switch between the operating modes of the device (see
chapter 6 "Starting up the device").

• Operating mode LEDs AUT, MAN, ADJ, LAS, LLC

The operating mode LEDs indicate the active operating mode.

Leuze electronic DDLS 508 13

4 5

1

2 63

1 AUT – Automatic

2 MAN – Manual

3 ADJ – Adjust

4 LAS – Alignment laser for mounting support

5 LLC – LinkLossCounter

6 MODE – Operating mode selector switch

Device description

Fig.3.3: Operating mode LEDs and operating mode selector switch

Tab.3.1: Meaning of the operating mode indicators

LED Color State Description

AUT Green Continuous light AUT operating mode (Automatic) active

Standard operating mode for data transmission

Note:

The optical link remains activated until the last orange LED
in the SIGNALQUALITY indicator switches off.

MAN Green Continuous light MAN operating mode (Manual) active

Operating mode for fine adjustment of the devices via SHA
(see chapter 6.2.2 "Fine adjustment with the single-handed
adjustment (SHA) process").

Note:

The optical link remains activated until the last green LED in
the SIGNALQUALITY indicator switches off.

ADJ Green Continuous light ADJ operating mode (Adjust) active

Operating mode for fine adjustment of the devices via SHA
(see chapter 6.2.2 "Fine adjustment with the single-handed
adjustment (SHA) process").

Note:

• Data transmission to the connected participants is de­activated.

• The optical link remains activated until the last orange
LED in the SIGNALQUALITY indicator switches off.

• The received signal level (SIGNALQUALITY) of the
second device is transmitted to the SIGNALQUALITY
indicator of the first device.

LAS Green Continuous light LAS operating mode (Laser Adjustment System) active

The alignment laser mounting support is activated (see
chapter 4.2 "Mounting with alignment laser and level").

Leuze electronic DDLS 508 14

Device description

LED Color State Description

LLC --- OFF LLC operating mode (LinkLossCounter, interruption diag-

nostics) not activated.

Green Continuous light The optical link was interruption-free since activation of the

LLC.

Red Continuous light The optical link was interrupted at least once since activa-

tion of the LLC (see chapter 7.3 "Error displays of the oper­ating mode LEDs").

Leuze electronic DDLS 508 15

Device description

1

2 3 4 5 6 7

Operating state indicator

The PWR, TMP, LSR, OLK, ERL and LINK LEDs indicate the operating state of the device.

1 PWR – Supply voltage (Power)

2 TMP – Temperature warning/error

3 LSR – Laser prefailure message

4 BUS – Not active for DDLS508

5 OLK – Optical link

6 ERL – Error Link

7 LINK – M12 cable-connected link

Fig.3.4: Operating state LEDs in the control panel

Tab.3.2: Meaning of the operating state indicators

LED Color State Description

PWR --- OFF No supply voltage (see chapter 7.1 "Error displays of the op-

erating state LEDs")

Green Flashing Device is being initialized

• Supply voltage connected

• Initialization running

• No data sent or received

Green Continuous light Data transmission path ready

• Initialization finished

Red Flashing Warning set (see chapter 7.1 "Error displays of the operating

state LEDs")

• No green and orange LEDs in SIGNALQUALITY indica­tor

• The optical link is interrupted.

• The laser diode of the transmitter is defective.

Red Continuous light Device error (see chapter 7.1 "Error displays of the operating

state LEDs"

• The function of the device is limited.

The displays of the other operating state LEDs may pro­vide information on the cause of the error.

Leuze electronic DDLS 508 16

Device description

LED Color State Description

TMP --- OFF Operating temperature in the specified working range

Orange Continuous light • Warning: The operating temperature is above or below

the specified working range by a maximum of 5°C (see
chapter 7.1 "Error displays of the operating state LEDs").

• Data transmission remains active.

Red Continuous light • The operating temperature is above or below the speci-

fied working range by more than 5°C (see chapter 7.1
"Error displays of the operating state LEDs").

• The operating time outside of the permissible operating
temperature is detected by the device.

• Data transmission remains active.

LSR --- OFF Laser diode of the transmitter with sufficient function reserve.

Orange Continuous light • Warning: The laser diode of the transmitter signals the

imminent end of the life expectancy (see chapter 7.1 "Er­ror displays of the operating state LEDs").

Limits to the maximum data transmission distance may
occur.

• Data transmission remains active.

BUS Not active for the DDLS508

OLK --- OFF No optical data connection

No data transmission

Causes (see chapter 7.1 "Error displays of the operating state
LEDs"):

• Optical window soiled

• Insufficient alignment

• Range exceeded

• Environmental influences (snow, rain, fog)

• Wrong F3/F4 frequency assignment of the devices

• Transmitter deactivated

• Transmitter of the second device deactivated

Green Continuous light • The optical link exists.

• No data is sent or received.

Orange Continuous light/

Data is sent and received.

flickering light

ERL --- OFF No link error.

Orange Continuous light • Missing link (Ethernet cable connection) on the second

device (see chapter 7.1 "Error displays of the operating
state LEDs").

• SIGNALQUALITY indicator on the second device without
green and orange LED (see chapter 7.1 "Error displays of
the operating state LEDs").

Red Continuous light • No cable-connected link to the connected device (see

chapter 7.1 "Error displays of the operating state LEDs").

• SIGNALQUALITY indicator without green and orange
LED (see chapter 7.1 "Error displays of the operating
state LEDs").

Leuze electronic DDLS 508 17

Device description

1

2 3

LED Color State Description

LINK --- OFF No cable-connected link to the connected device (see chapter

7.1 "Error displays of the operating state LEDs").

Green Continuous light • The link to the connected device is OK.

• No data is sent or received.

Orange Continuous light/

flickering light

• The link to the connected device is active.

• Data is sent and received.

SIGNALQUALITY indicator

Eight individual LEDs are available for displaying the received signal level (SIGNALQUALITY):

• two red LEDs

• two orange LEDs

• four green LEDs

At the optimum received signal level, all LEDs (red, orange, green) are activated.

If the received signal level drops, the LEDs are successively switched off, beginning with the green LEDs.

1 two red LEDs

2 two orange LEDs

3 four green LEDs

Fig.3.5: SIGNALQUALITY indicator of the received signal level

Leuze electronic DDLS 508 18

Tab.3.3: Meaning of the SIGNALQUALITY indicators

LED Color State Description

Device description

SIGNAL

QUALITY

Green Continuous light

4-stage

Orange Continuous light

2-stage

Red Continuous light

2-stage

• Received signal level with function reserve.

• The optical link exists.

Warning: Received signal level with minimal function re­serve (see chapter 7 "Diagnostics and troubleshooting").

• The optical link exists.

AUT operating mode (Automatic): Data transmission is
active.

MAN (Manual), ADJ (Adjust) operating modes: Data
transmission is deactivated.

• Switching output IO1 of the POWER connection is acti­vated in operating modes AUT (Automatic), MAN (Man­ual) and ADJ (Adjust).

Causes:

• Optical window soiled

• Range exceeded

• Environmental influences (snow, rain, fog)

• Insufficient alignment

The optical link is interrupted. The received signal level is
not sufficient (see chapter 7 "Diagnostics and troubleshoot­ing").

• No data is sent or received.

• Switching output IO1 of the POWER connection is acti­vated.

Causes:

• Optical window soiled

• Range exceeded

• Environmental influences (snow, rain, fog)

• Insufficient alignment of the devices

• Wrong F3/F4 frequency assignment of the devices

• Transmitter of the second device deactivated

Leuze electronic DDLS 508 19