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Datasensing LP4 Manual

Safety light curtain
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LP4 SAFETY LIGHT CURTAIN
SUMMARY
INTRODUCTION ........................................................................................................................................... 2
PRINCIPLE OF OPERATION ...................................................................................................................... 3
LIGHT CURTAIN ...................................................................................................................................................... 3
MUTING FUNCTION ............................................................................................................................................... 4
LP4ER_M model- external sensors 3 selectable methods of Muting. ............................................................ 4
LP4ER_M models used with "L" operational logic ................................................................................................. 6
INSTALLATION ............................................................................................................................................. 6
POSITIONING ........................................................................................................................................................... 8
POSITIONING OF THE MUTING SENSORS ("LP4ER_M" SERIES). .................................................................... 8
CALCULATION OF THE SAFETY DISTANCE .......................................................................................................... 10
VERTICAL POSITIONING OF THE LIGHT CURTAIN ........................................................................................... 11
MULTIPLE SYSTEMS ....................................................................................................................................................... 13
DISTANCE FROM REFLECTIVE SURFACES ............................................................................................................ 13
LIGHT SIGNALS ...................................................................................................................................................... 15
Emitter SIGNALS ............................................................................................................................................................... 15
Receiver SIGNALS ............................................................................................................................................................. 16
ELECTRICAL CONNECTIONS AND CONNECTORS ....................................................................................... 18
EMITTER CONNECTIONS (Male Connector) ......................................................................................................... 18
RECEIVER CONNECTIONS (Main Connector - Male) ......................................................................................... 19
RECEIVER CONNECTIONS J LR M12 MODELS ...................................................................................................... 21
SELECTION OF CONFIGURATION AND OPERATING MODE .................................................................... 21
SELECTION FEEDBACK EXTERNAL CONTACTORS K1/K2 ............................................................................. 21
SELECTION OF MANUAL/AUTOMATIC FUNCTIONING ................................................................................... 22
SELECTION OF THE MAXIMUM DURATION AND TYPE OF MUTING ......................................................... 23
OVERRIDE CONFIGURATION ...................................................................................................................................... 23
MUTING OVERRIDE FUNCTION ("LP4ER_M" MODELS) .................................................................................. 24
"SYSTEM STATUS" OUTPUT ("M" MODELS) ......................................................................................................... 25
TEST FUNCTION ................................................................................................................................................................ 25
SAFETY MODULES MJB1 - MJB2 - MJB3 - MJB4 ................................................................................................... 25
activated ............................................................................................................................................................................... 26
MUTING STATUS AND LIGHT ("LP4ER_M" MODELS) ................................................................................... 27
CONFIGURATION AND OPERATION MODES LP4ER_L12 ........................................................................ 28
AUTOMATICO MODE ....................................................................................................................................................... 28
MANUAL MODE ................................................................................................................................................................. 29
DIMENSIONS .............................................................................................................................................. 30
LP4ER_M & LP4ER_L ............................................................................................................................................ 30
TECHNICAL DATA .................................................................................................................................... 31
CHECKS AND MAINTENANCE ........................................................................................................................... 34
TROUBLESHOOTING ........................................................................................................................................... 35
ACCESSORIES ......................................................................................................................................................... 37
COMPLIANCE ............................................................................................................................................. 38
GUARANTEE ............................................................................................................................................... 38
806000200 Rev. B • 11/2022
SAFETY LIGHT CURTAIN LP4
Datasensing S.r.l.
Strada S. Caterina, 235
41122 Modena Italy
Tel. +39 059 420411
Fax +39 059 253973
www.datasensing.com
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  • Page 1: Table Of Contents

    Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN SAFETY LIGHT CURTAIN LP4 SUMMARY INTRODUCTION ............................2 PRINCIPLE OF OPERATION ........................3 LIGHT CURTAIN ..............................3 MUTING FUNCTION ............................... 4 LP4ER_M model–...

  • Page 2: Introduction

    The LP4 safety light curtain is a multi-beam opto-electronic safety system of the Type 4 category of electro-sensitive devices (in accordance with IEC 61496-1; EN 61496-2 and complies with the requirement of the EU Machinery Directive 2006/42/EC) –...

  • Page 3: Principle Of Operation

    • 90mm (protected heights from 300mm to 1800mm) (“LP4ER_M” models): PROTECTION OF THE LIMBS. LP4 is also available in a Multibeam version (LP4ER, LP4ER_M, LP4ER_L and LP4ER_ML) with a pitch between the lenses of: • 500mm (2 beams), 400mm (3 beams), 300mm (4 beams only models “LP4ER_M).

  • Page 4: Muting Function

    Muting function is to be activated (or not). Control of the dangerous opening can be de-activated only by a correct sequence of interruption of the beams of the Muting sensors. The LP4 system is available in models to which 2 or 4 sensors of various type can be connected (proximity, optical, capacitive etc).
  • Page 5 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN CONNECTION WITH 4 EXTERNAL SENSORS Using 4 sensors, two methods of operation are possible: Sequential (figure 7) The Muting function is activated following sequential Receiver interruption of sensors S1 and S2 and of sensors S3 and S4.

  • Page 6: Lp4Er_M Models Used With "L" Operational Logic

    Figure 6 - Parallel sensors Figure 5 - Crossed sensors INSTALLATION Before installing the LP4 safety system, check that: The safety system is used only as stopping device and not as machine control device.  The machine can be controlled electrically.
  • Page 7  If LP4 light curtains are used with palletizers, depalletizers and stacking/destacking machines for empty pallets, refer to European standard EN 415-4. 806000200 Rev. B • 11/2022...

  • Page 8: Positioning

    LP4 SAFETY LIGHT CURTAIN POSITIONING Protection of the guarded opening by LP4 must be integrated with suitable mechanical guards. POSITIONING OF THE MUTING SENSORS (“LP4ER_M” SERIES). 2 sensors The Emitter and receiver of the light curtain must be positioned so as to permit access to the dangerous area from above, from below and from the sides without first of all intercepting at least one of the optical beams.
  • Page 9 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN Dimension to be reduced to a minimum Material Mechanical guards Figure 8 4 sensors For correct positioning of sensors 1, 2, 3 and 4, i.e. those that manage enabling and disabling...

  • Page 10: Calculation Of The Safety Distance

    Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN CALCULATION OF THE SAFETY DISTANCE The light curtain must be positioned at a distance exceeding or equal to the minimum safety distance S so that a dangerous point can be reached only after stopping the dangerous action of the machine (Figure 11).

  • Page 11: Vertical Positioning Of The Light Curtain

    Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN VERTICAL POSITIONING OF THE LIGHT CURTAIN M odels with resolution 30, 40mm. These models are suitable for detecting  Light...
  • Page 12 Type of access From low level (floor) Above the conveyor (roller bed) Device with minimum 3 beams Device with minimum 2 beams Figure 15 Protection of the opening with LP4 light curtain and mechanical side guards. 806000200 Rev. B • 11/2022...

  • Page 13: Multiple Systems

    LP4 SAFETY LIGHT CURTAIN MULTIPLE SYSTEMS When several LP4 systems are used, these must not interfere optically with each other. Position the elements so that the beam emitted by the Emitter of a system is received only by the respective Receiver.
  • Page 14 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN LP4 Long Range SENSITIVE AREA EMITTER RECEIVER Figure 18 After installation, check for any reflective surfaces, intercepting the beams first of all at the center and those close to the Emitter and Receiver.

  • Page 15: Light Signals

    Table 3 If a fault is detected, the led will indicate the type of alarm (ref. "TROUBLESHOOTING"). * The value of the selected range depends on the LP4 model. (Refer to TECHNICAL DATA - page 31). 806000200 Rev. B • 11/2022...

  • Page 16: Receiver Signals

    Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN RECEIVER SIGNALS At power-on, for a period of 5 seconds, the display will show the number "8" and all the leds will be ON. In the next 10 seconds, the display and the leds will show the configuration selected. At initial power-on after installation, always check the accuracy of these settings very carefully.
  • Page 17 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN Normal display Figure 21 NORMAL FUNCTIONING COLOR (LED ON) (LED OFF) YELLOW Interruption Sensor 1 Sensor 1 clear...

  • Page 18: Electrical Connections And Connectors

    Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN ELECTRICAL CONNECTIONS AND CONNECTORS Caution Before making the electrical connections, always check that the voltage available matches that indicated in the technical data.

  • Page 19: Receiver Connections (Main Connector - Male)

    41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN RECEIVER CONNECTIONS (MAIN CONNECTOR - MALE) ➔ Make sure the M23 connector is screwed down tightly to ensure correct barrier operation! (4 turns) COLOR...

  • Page 20: Connector M12 N. 1 (For Muting Sensor) ("Lp4Er_M" Models) (Female Connector)

    Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN CONNECTOR M12 n. 1 (FOR MUTING SENSOR) (“LP4ER_M” MODELS) (FEMALE CONNECTOR) COLOR NAME TYPE DESCRIPTION FUNCTIONING Brown 24 VDC...

  • Page 21: Receiver Connections J Lr M12 Models

    EXT_SEL_B INPUT EN61131-2 Yellow EXT_K1_K2 INPUT Feedback external contactors SELECTION OF CONFIGURATION AND OPERATING MODE The inputs of the LP4 light curtain receiver make it possible to configure various operating modes. power-on, correct functioning, various inputs must connected indicated below.

  • Page 22: Selection Of Manual/Automatic Functioning

    Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN Receiver pins MEANING PIN 11 PIN 18 CONTROL OF 24VDC Control disabled EXTERNAL Control enabled CONTACTORS K1/K2 Not permitted...

  • Page 23: Selection Of The Maximum Duration And Type Of Muting

    LP4 SAFETY LIGHT CURTAIN SELECTION OF THE MAXIMUM DURATION AND TYPE OF MUTING The inputs of the LP4 light curtain receiver make it possible to configure the various types of Muting available and the maximum duration of the Muting condition (timeout).

  • Page 24: Muting Override Function ("Lp4Er_M" Models)

    Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN MUTING OVERRIDE FUNCTION (“LP4ER_M” MODELS) The OVERRIDE function must be used when the machine stops due to incorrect Muting activation sequences with the material obstructing the guarded opening.

  • Page 25: System Status" Output ("M" Models)

    SAFETY MODULES MJB1 - MJB2 - MJB3 - MJB4 LP4 light curtain can be integrated by the safety modules MJB1 - MJB2 - MJB3 and MJB4. In fact they contain terminal boards, pre-wired connection, dip switches for the configuration choice and two safety relays connected to the light curtain outputs.

  • Page 26: Example Of Connection With External Contactors K1/K2 With Start/Restart Interlock Activated

    Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN EXAMPLE OF CONNECTION WITH EXTERNAL CONTACTORS K1/K2 WITH START/RESTART INTERLOCK ACTIVATED “LP4ER_M” MODELS (With Muting) “LP4ER” MODELS (Without...

  • Page 27: Example Of Connection With Ad Sb300 With Start/Restart Interlock Activated

    Muting status must be highlighted to the outside using a indicator light close to the guarded opening. ➔ LP4 is equipped with an output (pin 1 of connector M23 on the receiver) to which the indicator light can be connected and is able to monitor correct functioning of this and also that it is present.

  • Page 28: Configuration And Operation Modes Lp4Er_L12

    Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN CONFIGURATION AND OPERATION MODES LP4ER_L12 The LP4ER_L12 operation mode is selected realizing appropriate connections on the M12 8 poles of the active element (Table 15 and Table 16).

  • Page 29: Manual Mode

    Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN MANUAL MODE In this operating mode the safety outputs OSSD1 and OSSD2 are activated (+24VDC) only if the protected area is free and after the reception of the RESTART signal, using a push button or thank to an appropriate control on the SEL_A or SEL_B input (ref.Table ).

  • Page 30: Dimensions

    Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN DIMENSIONS The following tables shows the dimensions of the different LP4 models; refer to the drawings of pages 34 ÷ 36. "LP4ER" MODELS 16m RANGE LONG RANGE...

  • Page 31: Technical Data

    Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN TECHNICAL DATA GENERAL DATA Safety category  30 Response time Reset automatic or manual selectable 24  20% Power supply M12 –...
  • Page 32 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN LP4ER_M SERIES 310 ÷ 1810 for light curtains with a resolution of 40 and 90 mm Heights of guarded areas 310 ÷ 1210 for light curtains with a resolution of 30 mm...
  • Page 33 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN MTTFd years 1204 LP4ER_ML Resolution 40 mm Number of beams 28,5 Response time 1376 1076 Overall barrier ht.

  • Page 34: Checks And Maintenance

    If the ORANGE weak signal LED on the Receiver switches on (LED 1 in Figure 21), check that: – the front surfaces are clean; – the Emitter and Receiver are aligned correctly. If the LED stays on, contact Datasensing S.r.l. Technical Service. 806000200 Rev. B • 11/2022...

  • Page 35: Troubleshooting

    Verify the number of the sensors found 3 or 4 sensors (the corrispondent led connected and the selected configuration flashes) Send the equipment for repair to Datasensing S.r.l. Internal error laboratories. Send the equipment for repair to Datasensing S.r.l. Internal error laboratories.
  • Page 36 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN CODE DIAGNOSIS REMEDY (Not flashing) Short-circuit between the OSSD outputs Carefully check the connection of terminals 2 and 3.

  • Page 37: Accessories

    Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com LP4 SAFETY LIGHT CURTAIN ACCESSORIES MODEL DESCRIPTION LP/BOX-1 Muting Junction Box CD12M/0E-050A1 M12 female connectors 8 poles 5 m cable CD12M/0E-100A1 M12 female connectors 8 poles 10 m cable...

  • Page 38: Compliance

    Select the link from the downloads section of the product page. GUARANTEE All new LP4 systems are guaranteed by Datasensing S.r.l. for a period of 12 (twelve) months under normal working conditions, against defects due to faulty materials and workmanship.

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