Page 1
PSEN op4F/H-A series Safety light curtain Operating Manual-1003067-EN-04...
Page 2
Preface This document is a translation of the original document. All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made for internal purposes. Suggestions and comments for improving this documentation will be gratefully received.
GENERAL INFORMATION ............5 General description ....................5 1.1.1 General description of the safety light curtain............5 1.1.2 Package content ..................... 6 Guidelines for selecting the protective device ............7 1.2.1 Resolution ....................... 7 1.2.2 Height of protected field ..................8 1.2.3 Minimum safety distance ..................
Page 4
7.9.5 Reduced resolution ....................62 7.9.6 Tolerance .......................62 7.9.7 Blanking mode in the basic configuration ...............64 7.9.8 Blanking mode in advanced configuration ..............65 7.10 Cascading ......................68 7.11 PNP/NPN .......................68 7.12 Coding ........................70 DIAGNOSTICS ................73 Status of LEDs .......................73 REGULAR CHECKS AND MAINTENANCE ......76 Regular checks ......................76 Maintenance ......................76 TECHNICAL DETAILS ..............
Light curtains in the PSEN op4F/H-A series are designed as inherently safe Type 4 systems for accident prevention in accordance with applicable international safety standards, in...
Specialised knowledge of safety issues is required to integrate a safety light curtain correctly in a plant. PILZ’s technical customer service team is available to provide any information you need regarding the functionality of the PSEN op4F/H-A safety light curtains and the safety regulations concerning correct installation.
OPERATING MANUAL PSEN op4F/H-A series 1.2 Guidelines for selecting the protective device Once the hazards have been assessed appropriately, there are at least three essential features to consider when selecting a safety light curtain: 1.2.1 Resolution The device’s resolution is understood to be the minimum size that an opaque object must be to safely interrupt at least one of the beams that form the area of the protected field.
OPERATING MANUAL PSEN op4F/H-A series 1.2.2 Height of protected field The height of the protected field is understood to be the height protected by the safety light curtain. Fig. 2 – Height of protected field Protected field Height of protected...
OPERATING MANUAL PSEN op4F/H-A series PSEN op4F-A-14-105/1 1050 PSEN op4H-A-30-105/1 PSEN op4F-A-14-120/1 1200 PSEN op4H-A-30-120/1 PSEN op4F-A-14-135/1 1350 PSEN op4H-A-30-135/1 PSEN op4F-A-14-150/1 1500 PSEN op4H-A-30-150/1 PSEN op4F-A-14-165/1 1650 PSEN op4H-A-30-165/1 PSEN op4F-A-14-180/1 1800 PSEN op4H-A-30-180/1 1.2.3 Minimum safety distance The protective device must be positioned at a specific safety distance (Fig. 3), which guarantees that the operator cannot reach the danger zone until the hazardous machine movement has come to a standstill by triggering the light curtain.
Page 10
OPERATING MANUAL PSEN op4F/H-A series The safety distance is calculated using the following formula: S = K (t1 + t2) + C Therefore: Minimum safety distance in mm Speed of the object (limb or body) approaching the danger zone in mm/s Light curtain’s response time in seconds (see Chapter 11)
Page 11
OPERATING MANUAL PSEN op4F/H-A series Application examples This example is based on a light curtain with a height = 600 mm. To calculate the distance of the device from the light curtain in a vertical position, the following formula is applied:...
OPERATING MANUAL PSEN op4F/H-A series 1.3 Typical application areas Example 1: Protecting the operating area on drilling machines The operator inserts the workpiece and removes it after machining. The operator must be protected from injury during the machining process. Solution: The safety light curtain PSEN op4F/H-A is particularly suitable for this application, as the device needs to be installed directly on the machine.
Benefits: The small dimensions of the light curtain with no dead zones guarantees maximum flexibility during installation, as it can be adapted to the machine dimensions. 1.4 Safety information To use the safety light curtains in the PSEN op4F/H-A series safely and correctly, the following information must be considered: •...
PSEN op4F/H-A series OPERATING MANUAL 2 INSTALLATION 2.1 Precautions to be taken during selection and installation of a light curtain Ensure that the safety level guaranteed by the PSEN op4F/H-A (Type 4) complies with the actual risk assessment of the machine to be monitored, as well as the level defined by the standard EN ISO 13849.
PSEN op4F/H-A series OPERATING MANUAL 2.2 General information on positioning the device Special care should be taken when positioning the safety light curtain to ensure it provides efficient protection. The device must be installed so that the danger zone cannot be accessed without interrupting the protected field.
PSEN op4F/H-A series OPERATING MANUAL Fig. 7 Fig. 8 2.2.1 Minimum distance from reflective surfaces Reflective surfaces close to the beams emitted from the protective device (whether from above, below or from the side) can cause passive reflections. These passive reflections can adversely affect how the object is detected within the protected area.
PSEN op4F/H-A series OPERATING MANUAL This minimum distance depends on the following factors: • The distance between the transmitter (TX) and receiver (RX) • The actual opening angle of the light curtain; in particular: when Type 4 light curtain = 5° (α = ± 2.5°) The illustration in Fig.
Page 18
PSEN op4F/H-A series OPERATING MANUAL The following graphic shows the distance from the interfering devices (D ), based on the operating range (D ) of the pair (TX A – RX A). Reichweite Operating range Fig. 12 For the purpose of simplification, the table below states the values of the minimum safety distances required for installation, with reference to some operating ranges.
Page 19
PSEN op4F/H-A series OPERATING MANUAL Fig. 13 shows an example of an installation in which interference may occur, along with two potential remedies. Opaque partition Fig. 13 – Interference between adjacent light curtains Should it be necessary to install two light curtains adjacently, as shown in the example in Fig.
PSEN op4F/H-A series OPERATING MANUAL 2.2.3 Aligning transmitter and receiver The light curtain pair must be arranged in parallel to each other. Transmitter and receiver have connections underneath. Both units must be installed at the same time. Make sure that the light curtains are not configured as shown in Fig. 14.
PSEN op4F/H-A series OPERATING MANUAL The table below states the operating ranges based on the number of mirrors used. Number Operating range Operating range of mirrors (14 mm) (30 mm) 5.1 m 16.5 m 4.3 m 13.7 m 3.7 m 11.6 m...
Page 22
PSEN op4F/H-A series OPERATING MANUAL Perform the following checks: • The light curtain is in a safe state (OSSDs off) - The beams are interrupted across the whole area of the protected field using a test object (test rod) (TP-14 or TP-30) with an appropriate resolution, in accordance with the diagram in Fig.
OPERATING MANUAL PSEN op4F/H-A series 3 MECHANICAL ASSEMBLY The transmitter (TX) and receiver (RX) must be assembled with their sensing surfaces facing each other. The connectors must be positioned on the same side and the distance must be within the operating limits of the relevant model (see Chapter 11).
Page 24
OPERATING MANUAL PSEN op4F/H-A series The mounting positions recommended based on the length of the light curtain are stated in Fig. 19 and in the following table. Fig. 19 – Light curtain dimensions MODEL L (mm) L (mm) A (mm) B (mm) C (mm) incl.
OPERATING MANUAL PSEN op4F/H-A series 4 ELECTRICAL CONNECTIONS 18-pin rectangular pigtail cables are used at the light curtain for electrical connections. The pigtail cable has M12 connectors with a different number of pins on the opposite side. On muting models, the receiver is equipped with one 12-pin M12 connector and one 5-pin M12 connector.
Page 27
OPERATING MANUAL PSEN op4F/H-A series PSENopt Advanced RX Muting CONNECTION LINE BEHAVIOUR OSSDs Protected field clear OSSD1 / OSSD 2 No voltage = Protected field not clear OSSDs High level = Override function active Low level = Override function inactive...
OPERATING MANUAL PSEN op4F/H-A series 4.1 Connection guidelines The following section contains some guidelines regarding the connections, which should be followed to ensure the correct operation of the safety light curtain from the PSEN op4F/H- A series. • Never place connection cable close to or in contact with cables featuring high voltage ratings and/or current fluctuations (e.g.: motor supply, inverters etc.).
Page 29
OPERATING MANUAL PSEN op4F/H-A series Manual start Fig. 21 – Connection to safety relay – manual start The diagrams show the connection between the safety light curtains and the safety relay PNOZ s3 in automatic start mode (Fig. 20) and monitored manual start mode (Fig 21).
Page 30
OPERATING MANUAL PSEN op4F/H-A series NOTE: The OSSDs are pulsed. The following diagram shows the time characteristic of the OSSDs. 24 V DC OSSD1 24 V DC OSSD2 115 µs 500 ms OSSD in safe state 1000 ms Fig. 26 – Time characteristic of the OSSDs...
OPERATING MANUAL PSEN op4F/H-A series 5 ALIGNMENT The transmitter and receiver must be aligned to ensure the device operates correctly. Good alignment prevents the light curtain switching incorrectly due to dust or vibration. The optimum alignment is achieved when the optical axes of the first and last beam from the transmitter coincide with the optical axes of the corresponding elements on the receiver.
Page 32
OPERATING MANUAL PSEN op4F/H-A series In alignment mode, the light curtain is always in a safe state and the OSSD outputs are OFF. The quality and level of the alignment is determined via the signal strength of each individual beam in alignment mode. The two synchronization beams have a higher value level. The user can see the alignment quality from the LED state at the lower end of the receiver.
OPERATING MANUAL PSEN op4F/H-A series 6 SETTING THE FUNCTIONS There are two options for configuring the light curtain’s functions and operating configurations: - Basis configuration mode (BCM): In basic configuration mode you have the option to use the buttons and the LED interface (transmitter/receiver) to select basic functions/parameters.
Page 34
OPERATING MANUAL PSEN op4F/H-A series light curtain configuration error, which prevents non-authorised changes to the advanced configuration. Advanced configuration mode With the PSENopt Configurator (graphical user interface for PC), the user has the option to configure advanced light curtain parameters. A variety of parameters can be used to adapt the light curtain operation to your applications.
OPERATING MANUAL PSEN op4F/H-A series Fig. 30 – Safety report Identification of light curtain • Serial no. • Firmware version • Configuration ID (check sum of configuration parameters) Position of light curtain in a cascading Model name and characteristic data of the light curtain (resolution)
OPERATING MANUAL PSEN op4F/H-A series 6.2 Function list PSEN op4F/H-A has two main operating modes: blanking and muting. The settings of the functions at the receiver associated with LEDs 5 to 8 will change, depending on whether blanking or muting is selected.
Page 37
OPERATING MANUAL PSEN op4F/H-A series List of RX functions in blanking mode (LED 3 OFF) LED status Function Setting LEVEL Coding Code 1 Code 2 No code Selection Muting muting/blanking Blanking Activated Deactivated Restart mode Auto Manual Selection of Floating blanking...
OPERATING MANUAL PSEN op4F/H-A series 7 FUNCTIONS 7.1 Restart function If the beams detect an opaque object, the OSSD output switching elements will switch (i.e. the safety contacts will open, SAFETY conditions). The restart function enables the user to define how the light curtain returns from the safe state to normal operation.
Page 39
OPERATING MANUAL PSEN op4F/H-A series Manual restart: When the light curtain has detected an opaque object in the protected field, the light curtain does not resume its normal operation until the object has been removed from the protected field and the reset button has been operated.
OPERATING MANUAL PSEN op4F/H-A series The section below describes how the restart mode can be selected via the pushbutton as well as via the user interface. BCM configuration: Restart mode LEVEL Auto LED 5 red (ON) Manual LED 5 OFF ACM configuration: Restart mode 7.2 Test...
OPERATING MANUAL PSEN op4F/H-A series 7.3 Reset If the light curtain is blocked in a fault state, you can restore normal operation by switching the light curtain on and off or by activating the RESET function (only with critical errors).
Page 42
OPERATING MANUAL PSEN op4F/H-A series PNP configuration NPN configuration Fig. 37 – EDM timings The EDM status is not equivalent to that of the OSSD: the timing diagram illustrates the relationship between cause (OSSD) and effect (EDM), with the maximum permitted delay.
OPERATING MANUAL PSEN op4F/H-A series 7.5 EDM selection This function enables users to select or exclude monitoring of the external switching devices. BCM configuration: EDM selection LEVEL Activated LED 4 ON yellow Deactivated LED 4 OFF ACM configuration: EDM selection To increase the safety level when EDM is OFF when the light curtain is commissioned, ensure that the EDM input is not connected.
OPERATING MANUAL PSEN op4F/H-A series BCM configuration (TX-side): Reduced range LEVEL Long LED 3 ON yellow Reduced LED 3 OFF ACM configuration (RX-side): Reduced range If long range is selected, the TX and RX can be installed at the maximum permitted operating range.
OPERATING MANUAL PSEN op4F/H-A series • It is important to note that the muting function represents a hazardous situation of the device. So it must be applied only in keeping with the necessary preventive measures. • The muting sensors must be correctly positioned to avoid unintended muting becoming potentially dangerous for the operator.
OPERATING MANUAL PSEN op4F/H-A series 7.7.3 Typical muting application and sensor connection Safety sensor Fig. 41 – Typical muting application The diagram above shows a typical muting application: the protection device installed on the conveyor must allow the package to pass through but not the operator. The light curtain temporarily suspends its safety function when the sensors A11, A21, A12, A22 are activated in the correct sequence.
Page 47
OPERATING MANUAL PSEN op4F/H-A series Fig. 42 – T muting timings The sensors labelled A1/A2 are connected to the muting input (MUTING1) and the sensors labelled B1/B2 are connected to the MUTING2 input. Sensors ending in “1” are on the same side of the light curtain and therefore on the opposite side to the sensors ending in “2”.
Page 48
OPERATING MANUAL PSEN op4F/H-A series L-Muting With L-muting, the light curtain is muted if the input signals switch to 24 VDC in accordance with a certain sequence: MUTING1 must be activated first; only then can MUTING2 be activated. If MUTING2 should activate before MUTING1, the device will not switch to muting mode;...
Page 49
OPERATING MANUAL PSEN op4F/H-A series BCM configuration: Muting direction LEVEL T (bidirectional) LED 6 ON green L (one-directional) LED 6 OFF ACM configuration: Muting direction 1003067-EN-04...
OPERATING MANUAL PSEN op4F/H-A series 7.7.5 Muting timeout The muting timeout describes the time for the maximum duration of the muting function; once the timeout has elapsed, muting is ended. Users have the option to set this time in BCM as well as ACM mode.
OPERATING MANUAL PSEN op4F/H-A series 7.7.6 Muting filter This function prevents muting from being activated unintentionally. The muting filter is a filter arranged on the muting inputs: Transitions of the muting signal from high to low are only considered valid if they are maintained for a period (Tf) of over 100 ms.
OPERATING MANUAL PSEN op4F/H-A series 7.7.7 Partial muting The muting type can be configured: total or partial muting. Partial muting can prove useful when the user wishes to limit the effects of the muting function exclusively to the selected zones.
OPERATING MANUAL PSEN op4F/H-A series 7.8 Override The override function allows the user to disable the safety functions if the machine needs to be restarted, even though one or more of the light curtain beams have detected an object in the protected field.
OPERATING MANUAL PSEN op4F/H-A series 7.8.1 Override mode It is possible to activate the override inputs: Level or edge. As shown in the diagram below, the two types of activation sequence for the override are recorded in the external inputs: •...
OPERATING MANUAL PSEN op4F/H-A series BCM configuration: Override mode LEVEL Level LED 8 ON green Edge LED 8 OFF ACM configuration: Override mode 7.8.2 Override timeout BCM mode The timeout of the override status is 120 seconds in both operating modes. If the override...
OPERATING MANUAL PSEN op4F/H-A series ACM configuration: Override timeout 7.8.3 Override restart This can only be selected when the light curtain is in manual restart mode; users can select the type of override restart: normal or automatic. The RESET/RESTART/ALIGN input (Pin 3 of the 12-pin M12 connector – RX-side) must be connected to a 24 V DC N/O contact.
Page 57
OPERATING MANUAL PSEN op4F/H-A series Automatic override restart The OSSD output switching elements resume normal operation when the RESTART signal goes low and not after 500 ms. With a timeout of 5 s on RESTART with 24 V an error is generated, which blocks the light curtain.
Page 58
OPERATING MANUAL PSEN op4F/H-A series Normal override restart The OSSD outputs switch to normal operation when the RESTART signal goes low and not after 500 ms. With a timeout of over 5 s an error is generated, which blocks the light curtain.
OPERATING MANUAL PSEN op4F/H-A series 7.9 Blanking Blanking is a function of the safety light curtains, which enables an opaque object to be inserted into the protected field without stopping the machine’s normal operation. Blanking can only be used when certain safety conditions are present and in accordance with a configurable operating logic.
OPERATING MANUAL PSEN op4F/H-A series 7.9.1 Fixed blanking Fixed blanking enables a certain part of the protected area (e.g. a certain number of beams) to be hidden, while all other beams operate normally. The blanking zone can be achieved using the teach-in process: the user must hold down the 24 V DC N/O teach-in contact (Pin 4 of the 12-pin M12 connector - RX) for at least 3 seconds, while an object interrupts the zone designed for blanking.
OPERATING MANUAL PSEN op4F/H-A series 7.9.2 Fixed blanking with increased tolerance This is fixed blanking with a tolerance on only one side of the blanking zone, so the user must select “top” or “bottom” tolerance. This function is particularly helpful with conveyor belts (which use fixed blanking) with goods transported along them (dimensions within the tolerance).
OPERATING MANUAL PSEN op4F/H-A series 7.9.5 Reduced resolution Reduced resolution represents a particular type of floating blanking, in which multiple objects can each interrupt a certain number of beams, while the light curtain remains in normal operating mode. The number below indicates how many adjacent beams the object can interrupt to guarantee that the light curtain remains in normal operating mode.
Page 63
OPERATING MANUAL PSEN op4F/H-A series The existence of the tolerance is indicated by LEDs flashing on the user interface, as shown below. Tolerance display LEVEL Tolerance active LED 3 flashes yellow The tolerance affects the light curtain's actual resolution. Make sure that the new resolution is considered when calculating a new mechanical assembly.
OPERATING MANUAL PSEN op4F/H-A series 7.9.7 Blanking mode in the basic configuration Only a reduced series of configurations can be implemented in basic configuration mode. BCM configuration: Fixed blanking LEVEL LED 8 ON green 1 fixed blanking zone 2 fixed blanking zones LED 8 OFF •...
OPERATING MANUAL PSEN op4F/H-A series 7.9.8 Blanking mode in advanced configuration A maximum of 5 blanking zones (fixed + floating) can be configured in ACM (however, at least one separating beam is required between the zones). The user can select the number of beams via ACM.
Page 66
OPERATING MANUAL PSEN op4F/H-A series • FIXED blanking The panel on the right shows the settings for the active blanking zone (in the example shown below, the active blanking zone is 3 beams in size and is 7 beams from the bottom of the light curtain;...
Page 67
OPERATING MANUAL PSEN op4F/H-A series • FLOATING blanking with total surveillance Floating objects can move up and down, interrupting several beams in the process. These objects can overlap or change positions. The object must be within the protected field at all times and interrupt the number of configured beams with a fixed tolerance of one beam.
OPERATING MANUAL PSEN op4F/H-A series 7.10 Cascading An internal communication bus can be used to cascade several pairs of light curtains with each other. The normal connections at the top and bottom of the light curtain are used with the aid of a cascading cable. The OSSDs are only physically connected to the Master unit.
Page 69
OPERATING MANUAL PSEN op4F/H-A series Fig 56 PNP connection Fig. 57 – PNP timings NPN configuration With this configuration, the load is connected between 24 V DC and the OSSD output switching element. In normal operation, the output voltage of the OSSD is 0 V DC.
OPERATING MANUAL PSEN op4F/H-A series Fig. 59 – NPN timings 7.12 Coding The coding function enables the light curtain to operate normally even if an interference condition occurs with another light curtain. This is particularly true if the transmitter TX of the first light curtain emits beams in the direction of the receiver RX of the second light curtain.
Page 71
OPERATING MANUAL PSEN op4F/H-A series • Code 1 or Code 2 If the two light curtains − are installed at a distance that is lower than the minimum distance permitted for identical devices − and has RX on the same side, the user must configure the light curtains with different codes.
Page 72
OPERATING MANUAL PSEN op4F/H-A series This function can be set in the RX unit as well as the TX unit via BCM. Two codes are available. BCM configuration: Coding selection (TX and RX) LEVEL CODE No Code LED 2 OFF...
OPERATING MANUAL PSEN op4F/H-A series 8 DIAGNOSTICS 8.1 Status of LEDs On the bottom left-hand side of the light curtain 8 LEDs help users to monitor and check the state of the light curtain in alignment mode, in normal mode and when troubleshooting. The LEDs can be used to recognise the configuration that has been set via the pushbuttons.
Page 74
If the problem should persist, Critical error please contact Pilz customer services. A critical error cannot be eliminated via a RESET. The light curtain must be switched on and off. If the error should persist, please contact Pilz customer services. 1003067-EN-04...
Page 75
If the problem should persist, Critical error please contact Pilz customer services. A critical error cannot be eliminated via a RESET. The light curtain must be switched on and off. If the error should persist, please contact Pilz customer services. 1003067-EN-04...
• Check that all additional functions comply by activating them several times under different operating conditions. 9.2 Maintenance The safety light curtain in the PSEN op4F/H-A series does not require any special maintenance. The front optical protective surfaces should be cleaned regularly to prevent any reduction in the operating range.
OPERATING MANUAL PSEN op4F/H-A series 10 TECHNICAL DETAILS Electrical data Operating voltage: 24 V DC ±20% Current consumption transmitter (TX): Max. 3 W Current consumption receiver (RX): 5 W max (without load) Outputs: 2 PNP or 2 NPN Short circuit protection: 1.4 A max...
OPERATING MANUAL PSEN op4F/H-A series 11 LIST OF AVAILABLE MODELS Protected Response time Response time No. of Resolution Model field height AIC OFF AIC ON beams (mm) (mm) (ms) (ms) PSEN op4F-A-14-030/1 PSEN op4F-A-14-045/1 PSEN op4F-A-14-060/1 PSEN op4F-A-14-075/1 PSEN op4F-A-14-090/1...
Page 79
OPERATING MANUAL PSEN op4F/H-A series Response time of Response time of Response time of Response time of Master AIC OFF Slave AIC OFF Master AIC ON Slave AIC ON (ms) (ms) (ms) (ms) Tmaster Tslave Tmaster AIC Tslave AIC PSEN op4H-A-30-030/1 11.9...
OPERATING MANUAL PSEN op4F/H-A series 13 FITTINGS Fastening bracket Terminator cap (fixed to the light curtain) 1003067-EN-04...
Page 82
OPERATING MANUAL PSEN op4F/H-A series Tool for BCM configuration When not in use, the tool for the BCM configuration can be slotted into the profile groove or into the upper section of the light curtain. 1003067-EN-04...
OPERATING MANUAL PSEN op4F/H-A series 14.2 Cascading cable Description Order number PSEN op cascading 0,05 m 631 058 PSEN op cascading 0,5m 631 059 PSEN op cascading 1 m 631 060 Cable length 50 mm for PSEN op cascading 0,05 m...
OPERATING MANUAL PSEN op4F/H-A series 14.3 Connection cable Description Order Number PSEN op pigtail emitter 631 055 Cable length 200 mm Description Order Number PSEN op pigtail receiver b 631 056 Cable length 200 mm 1003067-EN-04...
OPERATING MANUAL PSEN op4F/H-A series Description Order Number PSEN op pigtail receiver m 631 057 Cable length 200 mm 14.4 PSEN op Advanced Programming Adapter Description Order Number PSEN op Advanced Programming Adapter 631 070 1003067-EN-04...
Page 87
OPERATING MANUAL PSEN op4F/H-A series 14.5 Axial connection cable, unshielded Description Length Pins Order number PSEN op cable axial M12 4-pole 3 m 630 300 PSEN op cable axial M12 4-pole 5 m 630 301 PSEN op cable axial M12 4-pole 10 m...
This product/these products meet the requirements of the directive 2006/42/EC for machinery of the European Parliament and of the Council. The complete EC Declaration of Conformity is available on the Internet at www.pilz.com/downloads. Representative: Norbert Fröhlich, Pilz GmbH & Co. KG, Felix-Wankel-Str. 2, 73760 Ostfildern, Germany 1003067-EN-04...