PSEN op4F/H-s-.....
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PSEN op4F/H-s Series Instruction Manual INDEX 1. GENERAL INFORMATION .......................................................................................... 1 1.1. General Description of the safety light curtains ................................................... 1 1.1.1. Package contents ................................................................................... 3 1.2. New features compared PSEN op4F-s series (with EDM function) .................... 3 1.3. How to choose the device ..........
Instruction Manual PSEN op4F/H-s Series 1. GENERAL INFORMATION 1.1. General Description of the safety light curtains The safety light curtains of the PSEN op4F/H-s series are optoelectronic multibeam devices that are used to protect working areas that, in presence of machines, robots, and automatic systems in general, can become dangerous for operators that can get in touch, even accidentally, with moving parts.
PSEN op4F/H-s Series Instruction Manual The device consists in 2 units that, according to the model, are composed by one or several emitting and receiving modules. The receiver checks the control operations and safety actions. During installation, an user interface facilitates the alignment of both units (see section 5 “Alignment procedure”).
Instruction Manual PSEN op4F/H-s Series 1.1.1. Package contents • Package contains the following objects: • Receiver (RX) • Emitter (TX) • Installation Quick Guide of PSEN op4F/H-s curtain • Biannual checklist and periodical maintenance schedule • CD with instruction manual and other documents • 4 angled fixing brackets and specific fasteners • 2 angled fixing brackets for models with heights included between 1200 and 1800 mm 1.2.
PSEN op4F/H-s Series Instruction Manual 1.3. How to choose the device There are at least three different main characteristics that should be considered when choosing a safety light curtain, after having evaluated the risk assessment: 1.3.1. Resolution The resolution of the device is the minimum dimension that an opaque object must have in order to obscure at least one of the beams that constitute the sensitive area. The resolution strictly depends on the part of the body to be protected.
Instruction Manual PSEN op4F/H-s Series 1.3.2. Controlled height The controlled height is the height protected by the safety light curtain (Hp) Fig.
PSEN op4F/H-s Series Instruction Manual 1.3.3. Minimum installation distance The safety device must be positioned at a specific safety distance (Fig. 3). This distance must ensure that the dangerous area cannot be reached before the dangerous motion of the machine has been stopped by the AOPD. The safety distance depends on 4 factors, according to the EN-999 Standard: • Response time of the AOPD (the time between the effective beam interruption and the opening of the OSSD contacts).
Instruction Manual PSEN op4F/H-s Series NOTE: K value is: 2000 mm/s if the calculated value of S is ≤ 500 mm 1600 mm/s if the calculated value of S is > 500 mm When devices with > 40 mm resolution are used, the height of the top beam has to be ≥ 900 mm (H2) from machine supporting base while the height of the bottom beam has to be ≤ 300 mm (H1). If the safety light curtain must be mounted in a horizontal position (Fig.
PSEN op4F/H-s Series Instruction Manual Practical examples Let's suppose to have a light curtain with height = 600 mm To calculate the distance of the device from the AOPD, in a vertical position, the following formula is used: S = K*T + C where: T t1 t2 C D = = = = = t1 + t2 AOPD response time + PNOZsigma relay release time (max 80 ms) Machine total stopping time. 8 * (d – 14) for devices with resolution <= 40 mm resolution In all cases, if K = 2000mm/sec then S > 500 mm.
Instruction Manual PSEN op4F/H-s Series Example 1: Operating point protection on drilling machines The operator positions the part and takes it back after machining. The operator must be protected against possible abrasions while working. Solution: PSEN op4F/H-s 14 mm safety light curtain is especially suitable for this kind of application, which requires the installation of the device directly on the machine.
PSEN op4F/H-s Series Instruction Manual Example 3 : Milling machines A milling machine is a machine tool used for the shaping of metals and other solid materials. Operator hands and body must be protected from being dragged, entangled or cut by the tool / spindle. Solution: PSEN op4F/H-s 30 mm series safety light curtain is the best solution considering the required safety levels and application type. When even just one of the light curtain beams is interrupted, the machine is immediately stopped.
Instruction Manual PSEN op4F/H-s Series 1.5. Safety information For a correct and safe use of the safety light curtains of the PSEN op4F/H-s series, the following points must be observed: • The stopping system of the machine must be electrically controlled. • This control system must be able to stop the dangerous movement of the machine within the total machine stopping time T as per paragraph 1.3.3, and during all working cycle phases.
PSEN op4F/H-s Series Instruction Manual 2. INSTALLATION MODE 2.1. Precautions to be observed for the choice and installation Make sure that the protection level assured by the PSEN op4F/H-s device (Type 4) is compatible with the real danger level of the machine to be controlled, according to EN 954-1 and EN 13849-1. • The outputs (OSSD) of the AOPD must be used as machine stopping devices and not as command devices. The machine must have its own START command.
Instruction Manual PSEN op4F/H-s Series 2.2. General information on device positioning The safety light curtain should be carefully positioned, in order to reach a very high protection standard. Access to the dangerous area must only be possible by passing through the protecting safety light beams. Fig.5a shows some examples of possible access to the machine from the top and the bottom sides.
PSEN op4F/H-s Series Instruction Manual When the installation of the safety light curtain near to the dangerous area is not possible, a second light curtain must be mounted in a horizontal position in order to prevent any lateral access, as shown in Fig.6b. If the operator is able to enter the dangerous area, an additional mechanical protection must be mounted to prevent the access. NO Fig. 6a YES Fig. 6b 2.2.1. Minimum installation distance Refer to paragraph1.3.3.
Instruction Manual PSEN op4F/H-s Series 2.2.2. Minimum distance from reflecting surfaces Reflecting surfaces placed near the light beams of the safety device (over, under or laterally) can cause passive reflections. These reflections can affect the recognition of an object inside the controlled area. However, if the RX receiver detects a secondary beam (reflected by the side-reflecting surface) the object might not be detected, even if the object interrupts the main beam. Fig.
PSEN op4F/H-s Series Instruction Manual It is thus important to position the safety light curtain according to the minimum distance from reflecting surfaces. The minimum distance depends on: • operating distance between emitter (TX) and receiver (RX); • real aperture angle of AOPD (EAA); especially: for AOPD type 4 EAA = 5° (α = ± 2,5°) Diagram of Fig. 8 shows the minimum distance from the reflecting surface (Dsr), based on the operating distance: AOPD Type 4 Fig.
Instruction Manual PSEN op4F/H-s Series 2.2.3. Distance between homologous devices If different safety devices have to be installed in adjacent areas, the emitter of one device must not interfere dangerously with the receiver of the other device. The TX B interfering device must be positioned outside a minimum Ddo distance from the TX A – RX A emitter-receiver couple axis.
PSEN op4F/H-s Series Instruction Manual The following table shows, for convenience, the values of the minimum installation distances relative to some operating distances: Operating distance (m) 3 6 10 19 Minimum installation distance (m) 0,30 0,50 0,65 0,80 WARNING: the interfering device (TX B ) must be positioned at the same Ddo distance, calculated as shown above, even if closer to TX A respect to RX A .
Instruction Manual PSEN op4F/H-s Series Installation precautions have to be taken to avoid interference between homologous devices. A typical situation is represented by the installation areas of several adjacent safety devices aligned one next to the other, for example in plants with different machines. Fig.9 provides two examples: NO YES RX TX YES Fig.
PSEN op4F/H-s Series Instruction Manual 2.2.4. Emitter and receiver orientation The two units shall be assembled parallel each other, with the beams arranged at right angles with the emission and receiving surface, and with the connectors orientated towards the same direction. The configurations shown in Fig.10 must be avoided: NO NO Fig. 10 2.2.5.
Instruction Manual PSEN op4F/H-s Series The operator must respect the following precautions when using the deviating mirrors: • The alignment of the emitter and the receiver can be a very critical operation when deviating mirrors are used. Even very small displacements of the mirror is enough to lose alignment. The use of Pilz laser pointer accessory is recommended under these conditions. • The minimum safety distance (S) must be respected for each single section of the beams.
PSEN op4F/H-s Series Instruction Manual Fig. 12 • AOPD has to be correctly aligned, press slightly on the product side . in both directions the red LED must not turn on • The activation of the TEST function (optional for the safety light curtains Type 4) causes the opening of the OSSD outputs (red LED on and controlled machine stop).
Instruction Manual PSEN op4F/H-s Series 3. MECHANICAL MOUNTING The emitting (TX) and receiving (RX) units must be installed with the relevant sensitive surfaces facing each other. The connectors must be positioned on the same side and the distance must be included within the operating range of the model used (see section 10 “Technical data”). The two units must be positioned the most aligned and parallel possible. The next step is the fine alignment, as shown in section 5 “Alignment Procedure”.
PSEN op4F/H-s Series Instruction Manual Angled fixing brackets Angled fixing brackets (Fig.14), available upon request, can be used as an alternative or together with rotating brackets. The rotating supports for the correction of the unit inclination are available on request (see chapter 14 “Accessories”). Fig. 14 In case of applications with particularly strong vibrations, vibration dampers together with mounting brackets are recommended to reduce the impact of the vibrations. Fig.
Instruction Manual MODEL L (mm) A (mm) B (mm) C (mm) PSEN op4F/H-s-XX-015/1 216.3 108 54 - PSEN op4F/H-s-XX-030/1 366.2 216 75 - PSEN op4F/H-s-XX-045/1 516.3 316 100 - PSEN op4F/H-s-XX-060/1 666.2 366 150 - PSEN op4F/H-s-XX-075/1 816.3 466 175 - PSEN op4F/H-s-XX-090/1 966.2 566 200 - PSEN op4F/H-s-XX-105/1 1116.2 666 225 - PSEN op4F/H-s-XX-120/1 1266.3 966 150 483 PSEN op4F/H-s-XX-135/1 1416.2 1066 175 533 PSEN op4F/H-s-XX-150/1 1566.
PSEN op4F/H-s Series Instruction Manual 4. ELECTRICAL CONNECTIONS All electrical connections to the emitting and receiving units are made through a male M12 connector, located on the lower part of the two units. For receiver a M12 8-pole connector is used, while for emitter a M12 4-pole connector is used. RECEIVER (RX) *): OSSD1 OSSD2 0V N.O.
Instruction Manual Function TEST RESET EDM EDM SELECTION PSEN op4F/H-s Series Connection to Status + 24 VDC TEST ON Not connected or 0V TEST OFF + 24 VDC RESET ON Not connected or 0V RESET OFF Normally closed contact for a forceguided relay EDM is active Not connected or 0V EDM is not active + 24 VDC EDM OFF Not connected or 0V EDM ON OSSD1 AUTOMATIC RESTART OSSD2 MANUAL RESTART MAN/AUTO RESTART 27
PSEN op4F/H-s Series Instruction Manual 4.1. Notes on connections For the correct functioning of the PSEN op4F/H-s safety light curtains, the following precautions regarding the electrical connections have to be respected: • Do not place connection cables in contact with or near high-voltage cables and/or cable undergoing high current variations (e.g. motor power supplies, inverters, etc.
Instruction Manual PSEN op4F/H-s Series You may use for example a safety relay of the PNOZsigma (PNOZ s4, PNOZ s5) range as an evaluation device. The wiring is described in the operating manual of the PNOZsigma unit. • Do not use varistors, RC circuits or LEDs in parallel at relay inputs or in series at OSSD outputs. • The OSSD1 and OSSD2 safety contacts cannot be connected in series or in parallel, but can be used separately (Fig.17), conforming to the plant’s safety requirements.
PSEN op4F/H-s Series Instruction Manual • Connect both OSSDs to the activating device. Failure to connect an OSSD to the activating device jeopardises the system safety degree that the light curtain has to control. YES NO Fig. 17 Fig. 18 NO NO Fig. 19 Fig.
Instruction Manual PSEN op4F/H-s Series 4.2. Ground connection PSEN op4F/H-s safety light curtain units are preset for easy ground connection. A special compartment, positioned onto caps and marked with the special symbol shown in Figure 21, allows connection with ground cable by means of an additional screw coming with the equipment. Fig. 21 Ground connection configuration is the most common and guarantees the best immunity against electromagnetic disturbances.
PSEN op4F/H-s Series Instruction Manual • The ground connection of the two units is not necessary for Class III, while the use of a duly-insulated low-voltage feeder type SELV or PELV is compulsory. In this case, we recommend covering the earth symbol present on the caps of the two units with a blank sticker. • The ground connection of the two units is compulsory for Class I, while the use of a duly-insulated feeder type SELV or PELV is not compulsory but anyway recommended.
Instruction Manual PSEN op4F/H-s Series 5. ALIGNMENT PROCEDURE The alignment between the emitting and the receiving units is necessary to obtain the correct functioning of the light curtain. A good alignment prevents outputs instability caused by dust or vibrations. The alignment is perfect if the optical axes of the first and the last emitting unit's beams coincide with the optical axes of the corresponding elements of the receiving unit.
PSEN op4F/H-s Series Instruction Manual The standard installation described hereinafter is the one shown in Fig. 22, i.e. with the bar assembled with the connectors pointing down. 5.1. Correct alignment procedure The light curtain alignment can be effected only after having completed the mechanical installation and the electrical connections as described above. Compare alignment results with those given in the following table. NOTE: To enter alignment mode connect the device as described in section 6.
Instruction Manual PSEN op4F/H-s Series A Keep the receiver in a steady position and set the emitter until the yellow LED ( SYNC) is OFF. This condition shows the alignment of the first synchronisation beam. B Rotate the emitter, pivoting on the lower optics axis, until the yellow LED ( LAST) is OFF. NOTE: Ensure that the green LED ( ON.
PSEN op4F/H-s Series Instruction Manual 6. FUNCTIONING MODE 6.1. Restart mode The interruption of a beam due to an opaque object causes the opening of OSSD outputs and the stop of the safety light curtain, . SAFE (BREAK) condition AOPD standard operation can be reset (OSSD safety contact ) in two different ways: closing = NORMAL OP. condition, • Automatic Restart, After activation, AOPD resets to standard operating condition once the object has been removed from the controlled area.
Instruction Manual PSEN op4F/H-s Series Select either automatic or manual restart by connecting pin of RX connector (see section 4 "Electrical connections") 6.2. Test function The TEST function is optional for the safety light curtains Type 4 and not necessary. The TEST function can be activated by keeping a normally open external contact (TEST push-button), closed for at least 0.5 seconds. The TEST signal is active high. 6.3.
PSEN op4F/H-s Series Instruction Manual 6.4. EDM function The light curtain has a function for monitoring actuation external devices (EDM). This function can be enabled or deactivated. EDM enabled: - Disconnect or connect to the ground pin 3 of receiver M12 8-pole connector (EDM enabling = ON). - Connect EDM input (pin 4 of M12 8-pole – RX) to a 24 VDC normally closed contacts of the device to be monitored. NOTE: The decimal dot on the display shows that the function is enabled.
Instruction Manual PSEN op4F/H-s Series 6.5. Alignment aid function PSEN op4F/H-s light curtain is fitted with a system which informs the user about reached alignment degree. The alignment function can be selected on device starting by keeping closed RESET/RESTART N.O. contact for at least 0.5 seconds (Fig.24). Alignment mode timing LIGHT CURTAIN STATOSTATUS DELLA BARRIERA ON OFF RESET 24Vdc 0Vdc 0.5 s LIGHT CURTAIN ( ALIGNMENT STATO DELLASTATUS BARRIERA ( ALLINEAMENTO ) ON OFF Fig.
PSEN op4F/H-s Series Instruction Manual 7. DIAGNOSTIC FUNCTIONS 7.1. User interface Curtain operating status is visualised through an one-digit display present on both the receiver and emitter units. PSEN op4F/H-s also has four LEDs on the receiver and two LEDs on the emitter. Fig.25 shows all LEDs signalling modes: OFF, ON and BLINKING. LED OFF LED BLINKING LED ON Fig.
Instruction Manual PSEN op4F/H-s Series 7.2. Dagnostic messages The operator can evaluate the main causes of the system stop or failure through the display and signalling LEDs. For Receiver: Function Status Meaning Alignment See section 5 TEST Light curtain being tested.
PSEN op4F/H-s Series Function Type OSSD error (red ON) Internal error (red ON) Optical error Error status (red ON) EDM error (red ON) Restart selection error (red ON) No power supply (LEDs OFF) Instruction Manual Check and repair LED DIGIT Check OSSD connections. Make sure that they are not in contact with one another or with the supply cables, then Reset. If the failure continues contact Pilz Switch OFF and switch ON the power supply circuit. If the failure continues contact Pilz Reset.
Instruction Manual PSEN op4F/H-s Series For Emitter: Function Normal operation Status Meaning TEST Light curtain being tested. OSSD status on the receiver must be OFF (green ON) Emission (green ON yellow ON) Function Type Internal error (green ON) Error status Optical error (green ON) No power supply (LEDs OFF) 43 LED DIGIT LED DIGIT Light curtain in normal operating condition Check and repair Switch OFF and switch ON the power supply circuit.
PSEN op4F/H-s Series Instruction Manual 8. PERIODICAL CHECKS The following is a list of recommended check and maintenance operations that should be periodically carried-out by qualified personnel (Paragraph 2.2.6 “Controls after first installation”) Check that: ) during beam interruption along the • The AOPD stays locked ( entire protected area, using the suitable “Test Piece” (*) • The AOPD is correctly aligned. Press slightly product side, in both ) must not turn ON.
Instruction Manual PSEN op4F/H-s Series 8.1. General information and useful data Safety MUST be a part of our conscience. The safety devices fulfil their safety function only if they are correctly installed, in accordance with the Standards in force. If you are not certain to have the expertise necessary to install the device in the correct way, Pilz Technical Support is at your disposal to carry out the installation. The device uses fuses that are not self-resetting.
PSEN op4F/H-s Series Instruction Manual 9. DEVICE MAINTENANCE PSEN op4F/H-s safety light curtains do not require special maintenance operations. To avoid the reduction of the operating distance, optic protective front surfaces must be cleaned at regular intervals. Use soft cotton cloths damped in water. Do not apply too much pressure on the surface in order to avoid making it opaque.
Instruction Manual PSEN op4F/H-s Series 10. TECHNICAL DATA ELECTRICAL DATA Power supply (Vdd): Consumption (TX): Consumption (RX): Outputs: Short-circuit protection: Output current: Output voltage – status ON: Output voltage – status OFF: Capacitive load Response times: Controlled height: Safety category: Auxiliary functions: Electrical protection: Connections: Cable length (for power supply): OPTICAL DATA Light emission ( λ ): Resolution: Operating distance: 24 Vdc ± ±20% 2.5 W max 3.
PSEN op4F/H-s Series Instruction Manual 11. LIST OF AVAILABLE MODELS Model Controlled height (mm) No.
Instruction Manual PSEN op4F/H-s Series 12. OVERALL DIMENSIONS MODEL PSEN op4F/H-s-XX-015/1 L1 233.3 L2 153.3 PSEN op4F/H-s-XX-030/1 383.2 303.2 PSEN op4F/H-s-XX-045/1 533.2 453.3 PSEN op4F/H-s-XX-060/1 683.2 603.2 PSEN op4F/H-s-XX-075/1 833.2 753.3 PSEN op4F/H-s-XX-090/1 983.2 903.2 PSEN op4F/H-s-XX-105/1 1133.2 1053.2 PSEN op4F/H-s-XX-120/1 1283.3 1203.3 PSEN op4F/H-s-XX-135/1 1433.2 1353.2 PSEN op4F/H-s-XX-150/1 1583.3 1503.3 PSEN op4F/H-s-XX-165/1 1733.3 1653.
PSEN op4F/H-s Series Instruction Manual 13. OUTFIT Rotating fixing bracket MODEL DESCRIPTION PSEN op bracket turnable (kit) (630772) Rotating fixing bracket (kit 4pz.
Instruction Manual 14.
PSEN op4F/H-s Series Instruction Manual 14.
Instruction Manual PSEN op4F/H-s Series Deviating mirrors MODEL PSEN op Mirror-060/1 PSEN op Mirror-090/1 PSEN op Mirror-120/1 PSEN op Mirror-165/1 PSEN op Mirror-190/1 53 L 1 (mm) 545 845 1145 1595 1845 L 2 (mm) 376 676 976 1426 1676 L 3 (mm) 580 880 1180 1630 1880
PSEN op4F/H-s Series Instruction Manual Column and floor stands MODEL PSEN op Protective Column-060/1 PSEN op Protective Column-090/1 PSEN op Protective Column-120/1 PSEN op Protective Column-165/1 PSEN op Protective Column-190/1 L (mm) Order no.
Instruction Manual PSEN op4F/H-s Series Test Piece MODEL DESCRIPTION Testpiece F 14mm (630345) test rod Ø 14 mm Testpiece H 30mm (630346) test rod Ø 30 mm Connection cables MODELL PSEN op cable axial M12 4-p. shield. Description Cabel shielded, M12, 4 pole, axial Cable lengthe 3 m (630303) 5 m 630304) 10 m (630305) 30 m (630309) PSEN op cable angle M12 4-p. shield Cabel shielded, M12, 4 pole, angle 3 m (630306) 5 m 630307) 10 m (630308) 30 m (6303219) PSEN op cable axial M12 8-p. shield.
PSEN op4F/H-s Series Instruction Manual 15. GLOSSARY ACTIVE OPTOELECTRONIC PROTECTIVE DEVICE (AOPD): its detection function is achieved thanks to the use of optoelectronic receivers and emitters detecting the optical beams interruptions inside the device caused by an opaque object present inside the specified detecting area. An active optoelectronic protective device (AOPD) can operate both in emitter-receiver mode and in retro-reflective light curtains.
Instruction Manual PSEN op4F/H-s Series EMITTER: unit emitting infrared beams, consisting of a set of opticallysynchronised LEDs. The emitting unit, combined with the receiving unit (installed in the opposite position), generates an optical “curtain”, i.e. the detecting area. EXTERNAL DEVICE MONITORING (EDM): device used by the AOPD to monitor the status of the external command devices. FINAL SWITCHING DEVICE (FSD): part of the control system involving machine safety conditions.
PSEN op4F/H-s Series Instruction Manual OUTPUT SIGNAL SWITCHING DEVICE (OSSD): part of the ESPE connected to machine control system. When the sensor is enabled during standard operating conditions, it switches to disabled status. PROTECTED AREA: area where a specified test object is detected by the ESPE. PROTECTIVE DEVICE: device having the function to protect the operator against possible risks of injury due to the contact with machine potentially-dangerous parts.
Instruction Manual PSEN op4F/H-s Series TYPE (OF ESPE): the Electrosensitive Protective Equipment (ESPE) have different reactions in case of faults or under different environmental conditions. The classification and definition of the "type" (ex. type 2, type 4, according to IEC 61496-1) defines the minimum requirements needed for ESPE design, manufacturing and testing. WORKING POINT: machine semifinished product is worked.
