Pilz PSEN op2H-s-30 1 Series Operation Manual
Pilz PSEN op2H-s-30 1 Series Operation Manual

Pilz PSEN op2H-s-30 1 Series Operation Manual

Safety light curtains with infrared beams

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PSEN op2H-s-30-XXX/1
Safety light curtains with infrared beams
OPERATION MANUAL
1001421-EN-03

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Summary of Contents for Pilz PSEN op2H-s-30 1 Series

  • Page 1 PSEN op2H-s-30-XXX/1 Safety light curtains with infrared beams OPERATION MANUAL 1001421-EN-03...
  • Page 2 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.
  • Page 3: Table Of Contents

    PSEN op2H-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 to the PSEN op2H Series ..........3 1.3. How to choose the device .................. 4 1.3.1.
  • Page 5: General Information

    Instruction Manual PSEN op2H-s Series 1. GENERAL INFORMATION 1.1. General description of the safety light curtains The safety light curtains of the PSEN op2H-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.
  • Page 6 As the required knowledge may not be completely included in this manual, we suggest the customer to contact Pilz Technical Service for any necessary information relative to the functioning of the PSEN op2H-s light curtains and the safety rules that regulate the correct installation (see section 8 “Periodical checks ”).
  • Page 7: Package Contents

    Instruction Manual PSEN op2H-s Series 1.1.1. Package contents Package contains the following objects: • Receiver (RX) • Emitter (TX) • Quick Guide for first installation • CD with user manual and other documents • Checklist and periodical maintenance schedule • 4 angled fixing brackets and specific fasteners •...
  • Page 8: How To Choose The Device

    PSEN op2H-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.
  • Page 9: Controlled Height

    Instruction Manual PSEN op2H-s Series 1.3.2. Controlled height The controlled height is the height protected by the safety light curtain ( Hp ) Fig. 2 The PSEN op2H-s controlled height is delimited by the yellow line pad-printed on the front glass and by the dimensions listed in the table: Controlled Model...
  • Page 10: Minimum Installation Distance

    PSEN op2H-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.
  • Page 11 Instruction Manual PSEN op2H-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 ...
  • Page 12 PSEN op2H-s Series Instruction Manual Practical examples: Let's suppose to have a light curtain with height = 600 mm 1) 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 = t = AOPD response time + PNOZsigma relay release time (max 80 ms)
  • Page 13: Typical Applications

    - Automatic and semiautomatic assembly lines; - Automatic warehouses. In food industry applications, Pilz Technical Service has to verify the compatibility of the material of the safety light curtain housing with any chemical agents used in the production process.
  • Page 14 PSEN op2H-s Series Instruction Manual Example 2: Automatic warehouses Operator protection in automatic warehouses. Solution: the PSEN op2H-s safety light curtain series represents the ideal solution if the safety requirements and the application are considered. When even just one of the light curtain beams is interrupted, the carousel is immediately stopped.
  • Page 15: Safety Information

    Instruction Manual PSEN op2H-s Series 1.5. Safety information For a correct and safe use of the safety light curtains of the PSEN op2H-s series, the following points must be observed: • The stopping system of the machine must be electrically controlled. •...
  • Page 16: Installation Mode

    • The presence of intense electromagnetic disturbances could affect device correct operation. This condition shall be carefully assessed by seeking the advice of Pilz Technical service. • The operating distance of the device can be reduced in presence of smog, fog or airborne dust.
  • Page 17: General Information On Device Positioning

    Instruction Manual PSEN op2H-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.
  • Page 18: Minimum Installation Distance

    PSEN op2H-s Series Instruction Manual When the installation of the safety light curtain very 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.
  • Page 19: Minimum Distance From Reflecting Surfaces

    Instruction Manual PSEN op2H-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 compromise the recognition of an object inside the controlled area.
  • Page 20 PSEN op2H-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 opening angle of AOPD (EAA); in particular: for AOPD type 2 EAA = 10°...
  • Page 21: Emitter And Receiver Orientation

    Instruction Manual PSEN op2H-s Series 2.2.3. Emitter and receiver orientation The two units shall be installed parallel to each other, with the beams orthogonal respect to the emitting and receiving directions, with the connectors positioned in the same manner. The configurations shown in Fig. 9 must be avoided: Fig.9...
  • Page 22: Installation Of Several Adjacent Safety Light Curtains

    PSEN op2H-s Series Instruction Manual 2.2.4. Installation of several adjacent safety light curtains When several safety devices must be installed in adjacent areas, interferences between the emitter of one device and the receiver of the other must be avoided. Fig.10 provides an example of possible interferences between different devices and two pertinent solutions.
  • Page 23: Use Of Deviating Mirrors

    • The alignment of the emitter and the receiver can be a very critical operation when deviating mirrors are used. Even a very small mirror displacement is enough to lose alignment. The use of the Pilz laser pointer accessory is recommended under these conditions.
  • Page 24: Controls After First Installation

    PSEN op2H-s Series Instruction Manual 2.2.6. Controls after first installation The control operations to carry-out after the first installation and before machine start-up are listed hereinafter. The controls must be carried-out by qualified personnel, either directly or under the strict supervision of the person in charge of machinery Safety.
  • Page 25 Instruction Manual PSEN op2H-s Series • A person must not access or remain between AOPD and the dangerous parts of the machine. • Access to the dangerous areas of the machine must not be possible from any unprotected area. • AOPD must not be disturbed by external light sources, ensuring that it remains in Normal operating function for at least 10-15 minutes and placing the specific test piece in the protected area in the SAFE condition for the same period.
  • Page 26: Mechanical Mounting

    PSEN op2H-s Series Instruction Manual 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”).
  • Page 27 Instruction Manual PSEN op2H-s Series Angled fixing brackets Angled fixing brackets (Fig.14), are supplied with all models. 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.
  • Page 28 PSEN op2H-s Series Instruction Manual MODELS L (mm) A (mm) B (mm) C (mm) PSEN op2H-s-30-015/1 216.3 PSEN op2H-s-30-030/1 366.2 PSEN op2H-s-30-045/1 516.3 PSEN op2H-s-30-060/1 666.2 PSEN op2H-s-30-075/1 816.3 PSEN op2H-s-30-090/1 966.2 PSEN op2H-s-30-105/1 1116.2 PSEN op2H-s-30-120/1 1266.3 PSEN op2H-s-30-135/1 1416.2 1066 PSEN op2H-s-30-150/1...
  • Page 29: Electrical Connections

    Instruction Manual PSEN op2H-s Series 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 5-pole connector is used, while for emitter a M12 4-pole connector is used.
  • Page 30: Notes On Connections

    PSEN op2H-s Series Instruction Manual 4.1. Notes on connections For the correct functioning of the PSEN op2H-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.
  • Page 31 Instruction Manual PSEN op2H-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.
  • Page 32 PSEN op2H-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 Fig. 16 Fig. 17 Fig. 18 Fig.
  • Page 33: Earth Connection

    Instruction Manual PSEN op2H-s Series 4.2. Earth connection PSEN op2H-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 20, allows connection with ground cable by means of an additional screw coming with the equipment.
  • Page 34: Alignment Procedure

    PSEN op2H-s Series Instruction Manual 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.
  • Page 35 Instruction Manual PSEN op2H-s Series The standard installation described hereinafter is the one shown in Fig. 22, i.e. with the bar assembled with the connectors pointing down. Two yellow LEDs ( LAST, SYNC) on PSEN op2H-s receiver, facilitates the alignment procedure. During standard operation, the LEDs indicate the safety light curtain status, as shown in the table.
  • Page 36: Correct Alignment Procedure

    PSEN op2H-s Series Instruction Manual 5.1. Correct alignment procedure The light curtain alignment can be effected only after having completed the mechanical installation and the electrical connections. The following procedure has to be followed: • Check the green LED (◼) and the yellow LED ( ) on the TX unit.
  • Page 37: Functioning Mode

    (see Fig. 6b). In this case, the reset, using for example the manual reset of the Pilz safety relay, might be necessary. 6.2. Test function The TEST function can be activated by keeping a normally open external contact (TEST push-button), closed for at least 0.5 seconds.
  • Page 38: Reset Function

    PSEN op2H-s Series Instruction Manual 6.3. Reset function The RX light curtain has a RESET function which is activated after an internal error. The reset can be made only in case of optical error or OSSD error (See sect. 7 “Diagnostic Functions”) The RESET function can be activated by keeping a normally open external contact (RESET/RESTART push-button), closed for at least 5 seconds.
  • Page 39: Diagnostic Functions

    Instruction Manual PSEN op2H-s Series 7. DIAGNOSTIC FUNCTIONS 7.1. User interface The operator can visualise the operating condition of the light curtains through the four LEDs positioned on the receiver unit and two LEDs on the emitter unit. Fig.23 shows all signalling LEDs modes: OFF, ON and BLINKING. LED OFF LED BLINKING LED ON...
  • Page 40: Diagnostic Messages

    Reset. If the failure continues contact Pilz Internal error Switch OFF and switch ON the supply circuit; if the failure (red ON, yellow Error status continues contact Pilz BLINKING) Optical error Reset. If the failure continues (red ON, yellow contact Pilz BLINKING)
  • Page 41 Check and repair Internal error Switch OFF and switch ON (green ON the power supply circuit. If the yellow failure continues contact Pilz BLINKING) Optic error Switch OFF and switch ON (green ON the power supply circuit. If the yellow...
  • Page 42: Periodical Checks

    PSEN op2H-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. Check that: • The AOPD stays locked ( ) during beam interruption along the entire protected area, using the suitable “Test Piece”.
  • Page 43: General Information And Useful Data

    Standards in force. If you are not certain to have the expertise necessary to install the device in the correct way, Pilz Customer Service is at your disposal to carry out the installation. The device uses fuses that are not self-resetting. Consequently, in presence of short-circuits causing the cut-off of these fuses, both units shall be sent to Pilz service department.
  • Page 44: Device Maintenance

    • paper or other abrasive materials 9.1. Product disposal Under current Italian and European laws, Pilz is not obliged to take care of product disposal at the end of its life. Pilz recommends to dispose of the product in compliance with local...
  • Page 45: Technical Data

    Instruction Manual PSEN op2H-s Series 10. TECHNICAL DATA The product technical specifications are given below. ELECTRICAL DATA 24 Vdc  20% Power supply (Vdd): Unit current draw (TX): 2 W max Unit current draw (RX): 3.5 W max (without load) Outputs: 2 PNP Short-circuit protection:...
  • Page 46: List Of Available Models

    PSEN op2H-s Series Instruction Manual 11. LIST OF AVAILABLE MODELS MODEL Protected Response Resolution Height Beams time (mm) (msec) (mm) PSEN op2H-s-30-015/1 PSEN op2H-s-30-030/1 PSEN op2H-s-30-045/1 PSEN op2H-s-30-060/1 PSEN op2H-s-30-075/1 PSEN op2H-s-30-090/1 PSEN op2H-s-30-105/1 1050 PSEN op2H-s-30-120/1 1200 PSEN op2H-s-30-135/1 1350 PSEN op2H-s-30-150/1 1500...
  • Page 47: Overall Dimensions

    Instruction Manual PSEN op2H-s Series 12. OVERALL DIMENSIONS M2 n°3 32.3 50.5 MODEL PSEN op2H-s-30-015/1 233.3 153.3 PSEN op2H-s-30-030/1 383.2 303.2 PSEN op2H-s-30-045/1 533.2 453.3 PSEN op2H-s-30-060/1 683.2 603.2 PSEN op2H-s-30-075/1 833.2 753.3 PSEN op2H-s-30-090/1 983.2 903.2 PSEN op2H-s-30-105/1 1133.2 1053.2 PSEN op2H-s-30-120/1 1283.3...
  • Page 48: Outfit

    PSEN op2H-s Series Instruction Manual 13. OUTFIT Rotating fixing bracket MODEL DESCRIPTION PSEN op bracket turnable (kit) (630772) Rotating fixing bracket (kit 4pz.)
  • Page 49: Accessories

    Instruction Manual PSEN op2H-s Series 14. ACCESSORIES Angled fixing bracket...
  • Page 50: Angled Fixing Bracket Mounting

    PSEN op2H-s Series Instruction Manual 14.1 Angled fixing bracket mounting MOUNTING A MOUNTING B Angled fixing bracket Angled fixing bracket + Adjustable support Angled fixing bracket + Antivibration support Angled fixing bracket + Adjustable support + Antivibration support MODEL DESCRIPTION PSEN op bracket kit (630325) Fixing brackets for angle mounting (4 pcs kit)
  • Page 51 Instruction Manual PSEN op2H-s Series Deviating mirrors MODEL DESCRIPTION (mm) (mm) Deviating mirror H= 550 mm mirror 550 (630335) Deviating mirror H= 700 mm mirror 700 (630336) Deviating mirror H= 900 mm mirror 900 (630337) Deviating mirror H= 700 mm 1004 mirror 1000 (630338) Deviating mirror H= 1270 mm...
  • Page 52 PSEN op2H-s Series Instruction Manual Columns and floor stands L (mm) MODEL DESCRIPTION (mm) Stand 1000 (630331) Column and floor stand H= 1000 mm 1000 30x30 Stand 1200 (630332) Column and floor stand H= 1200 mm 1200 30x30 Stand 1500 (630332) Column and floor stand H= 1500 mm 1500 45x45...
  • Page 53 Instruction Manual PSEN op2H-s Series Test piece MODEL DESCRIPTION Testpiece F 14mm (630345) Test piece Ø 14 mm Testpiece H 30mm (630346) Test piece Ø 30 mm Connection cables MODELL Description Cable length PSEN op cable M12 Cabel unshielded, M12, 3 m (630300) 4-p.
  • Page 54: Glossary

    PSEN op2H-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.
  • Page 55 Instruction Manual PSEN op2H-s Series EMITTER: unit emitting infrared beams, consisting of a set of optically- synchronised LEDs. The emitting unit, combined with the receiving unit (installed in the opposite position), generates an optical “curtain”, i.e. the detecting area. FINAL SWITCHING DEVICE (FSD): part of the control system connected to machine safety and breaking the circuit towards machine primary command element (MPCE) when the output signal switching device (OSSD) reaches the inactive condition.
  • Page 56 PSEN op2H-s Series Instruction Manual QUALIFIED OPERATOR: a person who holds a professional training certificate or having a wide knowledge and experience and who is acknowledged as qualified to install and/or use of the product and to carry out periodical test procedures. RECEIVER: unit receiving infrared beams, consisting of a set of optically-synchronised phototransistors.

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