Online data sheet L21S-21MA1A, L21E-21MA1A L21 SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES L21S-21MA1A, L21E-21MA1A | L21 SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES A B C D E F H I J K L M N O P Q R S T Ordering information System part Type Part no. Sender L21S-21MA1A 6034874 L21E-21MA1A 6034875 Receiver Other models and accessories www.sick.com/L21 Detailed technical data Features Scanning range 0 m ... 10 m Number of beams 1 Optical axis Axial Safety-related parameters Type Type 2 (IEC 61496) 1) Safety integrity level SIL1 (IEC 61508) 1) SILCL1 (EN 62061) 1) Category Category 2 (EN ISO 13849) 1) Test rate (external test) 100 /s (EN ISO 13849) 2) Maximum demand rate ≤ 60 min⁻¹ (EN ISO 13849) 3) Performance level PL c (EN ISO 13849) 1) PFHD (mean probability of a dangerous failure per hour) 1.0 x 10-6 (EN ISO 13849) 1) TM (mission time) 20 years (EN ISO 13849) 1) 2) 3) Only in combination with an appropriate test device, e.g., Flexi Classic or Flexi Soft. The test rate shall not be exceeded. Between two requirements on a safety-related response of the device, at least 100 internal or external tests must be carried out. Interfaces Connection type Male connector M12, 4-pin, straight Fieldbus, industrial network Integration via Flexi Soft safety controller CANopen, DeviceNet™, EtherCAT®, EtherNet/IP™, Modbus TCP, PROFIBUS DP, PROFINET 1) 1) For additional information on Flexi Soft -> www.sick.com/Flexi_Soft. Electrical data Sender Protection class III (EN 50178) Supply voltage VS 24 V DC (19.2 V DC ... 28.8 V DC) 1) 2 Receiver Short-circuit protected. OPTO-ELECTRONIC PROTECTIVE DEVICES | SICK Online data sheet | 2017-09-01 12:26:26 Subject to change without notice L21S-21MA1A, L21E-21MA1A | L21 SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES Power consumption Sender Receiver ≤ 20 mA ≤ 30 mA Switching outputs PNP, Q 1) Switching current ≤ 70 mA 1) Short-circuit protected. Mechanical data Design Cylindrical Dimensions (diameter x length) M18 x 97.7 mm Housing material Nickel-plated brass Lens material Glass Weight 67 g Ambient data Enclosure rating IP67 (EN 60529) Ambient operating temperature –40 °C ... +55 °C Storage temperature –40 °C ... +75 °C Air humidity 15 % ... 95 %, Non-condensing Vibration resistance 5 g, 10 Hz ... 55 Hz (IEC 60068-2-6) Shock resistance 10 g, 16 ms (IEC 60068-2-29) Other information Sender Light source LED Type of light Visible red light Wave length 660 nm Aperture angle/receiving angle ± 5° / ± 5° Receiver Classifications ECl@ss 5.0 27272701 ECl@ss 5.1.4 27272701 ECl@ss 6.0 27272701 ECl@ss 6.2 27272701 ECl@ss 7.0 27272701 ECl@ss 8.0 27272701 ECl@ss 8.1 27272701 ECl@ss 9.0 27272701 ETIM 5.0 EC001831 ETIM 6.0 EC001831 UNSPSC 16.0901 46171620 2017-09-01 12:26:26 | Online data sheet Subject to change without notice OPTO-ELECTRONIC PROTECTIVE DEVICES | SICK 3 L21S-21MA1A, L21E-21MA1A | L21 SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES Dimensional drawing (Dimensions in mm (inch)) M18 axial 97.7 (3.85) 7 (0.28) 17.6 15.6 57.5 (2.26) (0.69) (0.61) LED (0.65) Ø 16.4 M12 x 1 45° M18 x 1 A B C D E F Connection diagram 3 x L21 (cascaded) with Flexi Classic main unit and expansion module on UE10-3OS H I J K L M N O P Q R S T +24 V +24 V 0V TE +24 V 0V S1 Q L21S L21E I1 +24 V 0V Q A1 X1 X2 S1 S2 L21S B1 S3 B3 Y1 13 23 33 41 Y2 24 34 42 34 56 0V TE L21E I2 +24 V UE410-MU/XU I3 I4 A2 Q1 Q2 2 1 0 3 7 8 9 FE UE10-3OS Function Q3 Q4 EN B2 B4 14 1) +24 V 0V TE +24 V 0V Q L21S L21E 0V E117082/00/2014-06-02 2) PELV Task Integration of three cascaded L2000 (L21) family single-beam photoelectric safety switches with a UE410-MU/XU safety controller and a UE10-3OS safety relay. Operating mode: with restart interlock and external device monitoring. Function The system is ready when the light path is clear and the UE10-3OS is de-energized and functioning correctly. When the S1 button is pressed and released, the Q1 and Q2 outputs on the UE410-MU/XU are live and the UE10-3OS is switched on. If one of the light beams is interrupted, the Q1 and Q2 outputs on the UE410-MU/XU shut down the UE10-3OS. 4 OPTO-ELECTRONIC PROTECTIVE DEVICES | SICK Online data sheet | 2017-09-01 12:26:26 Subject to change without notice L21S-21MA1A, L21E-21MA1A | L21 SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES Possible faults Malfunctions in the UE10-3OS will be detected. The shutdown function is retained. Comments 1) Output circuits: These contacts are to be connected to the controller such that, with the output circuit open, the dangerous state is disabled. For categories 4 and 3, the integration must be dual-channel (x/y paths). Single-channel integration in the control (z path) is only possible with a single-channel control and by taking the risk analysis into account. 2) PELV as required in EN 60204-1 / 6.4 Take note of the operating instructions for the integrated devices. The safety-related parameters (safety integrity level and response time) are dependent on the types used. Recommended accessories Other models and accessories www.sick.com/L21 Brief description Type Part no. Head A: female connector, M12, 4-pin, straight Head B: cable Cable: PVC, unshielded, 5 m DOL-1204-G05M 6009866 Head A: female connector, M12, 4-pin, angled Head B: cable Cable: PVC, unshielded, 5 m DOL-1204-W05M 6009867 Head A: female connector, M12, 4-pin, straight Head B: Cable: unshielded DOS-1204-G 6007302 Head A: female connector, M12, 4-pin, angled Head B: Cable: unshielded DOS-1204-W 6007303 AR60 1015741 Plug connectors and cables Alignment aids Laser alignment aid for various sensors, laser class 2 (IEC 60825). Do not look into the beam! 2017-09-01 12:26:26 | Online data sheet Subject to change without notice OPTO-ELECTRONIC PROTECTIVE DEVICES | SICK 5 Online data sheet SICK at a glance SICK is one of the leading manufacturers of intelligent sensors and sensor solutions for industrial applications. A unique range of products and services creates the perfect basis for controlling processes securely and efficiently, protecting individuals from accidents and preventing damage to the environment. We have extensive experience in a wide range of industries and understand their processes and requirements. With intelligent sensors, we can deliver exactly what our customers need. In application centers in Europe, Asia and North America, system solutions are tested and optimized in accordance with customer specifications. All this makes us a reliable supplier and development partner. Comprehensive services complete our offering: SICK LifeTime Services provide support throughout the machine life cycle and ensure safety and productivity. For us, that is “Sensor Intelligence.” Worldwide presence: Contacts and other locations – www.sick.com SICK AG | Waldkirch | Germany | www.sick.com