Solenoid-Latching AZM161 Safety Interlock Switch Features & BeneŢts • Solenoid-locking design … controls access to hazardous areas until safe conditions exist. • Highly tamper-resistant … difŢcult to defeat with simple tools, tape, bent wires, etc. Reduces liability exposure. • “Positive-break” NC contacts … assure circuit interruption upon actuator key removal. • Conditional “safe” outputs … actuating key must be fully inserted and solenoid must be actuated to lock key before “closed” safety signal is provided. • Watertight design … meets IP67 environmental requirements. • High-strength, stainless-steel actuator key … tolerates mechanical abuse without damage. • Rugged, corrosion-resistant housing … tolerates hostile environments. • Four optional key entry locations … provide installation ţ exibility. • Independent actuator key position and locking pin ® position monitoring contacts … provide a higher degree of safety. • Available in “solenoid-locking” and “solenoid- Description unlocking” models … for application versatility. The AZM161 Series is designed for machines/work cells • Meets rigid safety agency standards … IEC, BG and where access to a hazardous work area must be controlled VDE (UL and CSA pending). until safe conditions exist. Their solenoid-latching feature • Wide selection of accessories … to meet diverse permits locking a machine guard until dangerous conditions, application requirements. which may exist immediately after removal of power, have abated. Solenoid-latching may be controlled by a time delay, Typical Applications motion detector, position sensor or other suitable component. The AZM161 is intended for use as a safety interlock switch The unit features independent actuator key (guard) position on movable machine guards which must not be opened until and solenoid-latching monitoring contacts. These permit the dangerous conditions, which may exist after the removal of prevention of machine restart until the guard is closed and power, have abated. Such conditions are ţ ywheel overrun, the solenoid-latching pin is in the locked position. spindle momentum, unstable rest positions, etc. Typical applications are textile machines, stamping presses, The AZM161 consists of an electromechanical safety interlock articulating robot arms, mixing machines, metal working switch with “positive-break” contacts and a locking actuator equipment, printing presses and packaging machinery. key. In addition, the solenoid mechanism features a NO and a NC solenoid-latching monitoring contact, and an auxiliary manual unlocking device … the latter provided to aid in installation and for use in the event of a power failure (when using the “unlocking by solenoid” model). Optional Safety Operation Controller and Standstill Monitor. The AZM161 electromechanical safety interlock switch (Please see page 80) assembly consists of a rugged switch-solenoid-latching mechanism and a geometrically-unique locking actuator key. The switch actuating key is typically mounted to a movable machine guard. When the guard is closed, the actuating key is held in position by the solenoid-latching mechanism. The guard may only be opened by energizing or de-energizing (depending upon model) the solenoid-latching mechanism. Upon opening of the guard, the switch’s “positive-break” NC contacts are forced to open through a direct (non-resilient) mechanical linkage with the actuating key. The NO contacts close upon key removal. The solenoid-latching mechanism circuit features a NO and a NC contact which permit monitoring its status. This NC contact is wired in series with the NC contact in the safety switch circuit. Thus the machine is prevented from starting until the actuating key is inserted (guard is closed) and the solenoid has locked it in the closed position. 60 AZM161 AVAILABLE MODELS AND ACCESSORIES AVAILABLE STANDARD MODELS AVAILABLE KEYS & ACCESSORIES 1 (Includes ⁄2" NPT Plastic Adapter. Actuator for AZM161 Keyed-Interlock Switches key sold separately) Part Number Description Part Number Contacts Description AZM161-B1 Standard actuating key AZM161SK-24rk-* 2NO & 4 NC AZM161-B1E Standard actuating key with heavy-duty Actuating key locked by mounting bracket spring and unlocked by AZM161SK-33rk-* 3NO & 3 NC energizing solenoid. AZM161-B6 Small radius actuating key AZM161SK-12/12rk-** 2NO & 4 NC AZM161-B6-2177 Funnel entry adapter with elongated ţ exible- movement actuating key AZM161SK-24rka-* 2NO & 4 NC Actuating key locked by energizing solenoid and AZM-Key Solenoid-latch bypass key AZM161SK-33rka-* 3NO & 3 NC unlocked by spring. (See 2 M20-CG Cord grip (cable gland) Note 1 below) AZM161SK-12/12rka-** 2NO & 4 NC 1 1 M20- ⁄2"P Plastic ⁄2" NPT adapter *Please specify solenoid operating voltage via addition of one of the (two supplied with basic unit) following sufŢx codes: 1 1 M20- ⁄2"M Metal ⁄2" NPT adapter Voltage Add SufŢx 24VAC/DC -24VAC/DC PL-M20-24V 24VAC/DC pilot light kit 115VAC -115VAC PL-M20-120V 120VAC/DC pilot light kit 230VAC -230VAC Add sufŢx -1637 Gold contacts **Please specify solenoid operating voltage via addition of one of the to basic part following sufŢx codes: number Voltage Add SufŢx MS AZM 161 Adjustable mounting kit (Eases installation 24VAC/DC -24VAC/DC and facilitates adjustments due to guard 110/230VAC -110/230VAC misalignment) Example: AZM161SK-24rk-24VAC/DC AZS2305 Fail-to-Safe Timer (Please see page 80) FWS1205B Fail-to-Safe Standstill Monitor (Page 80) Note 1: Use of this model permits the guard to be opened in the event of a power failure. Generally accept- ed safety standards/practices suggest this model only be used after conducting a thorough risk evaluation in the context of the application. ® is a trademark of SCHMERSAL Solenoid-latch bypass key (for locking via spring models) MS AZM 161 ADJUSTABLE MOUNTING KIT 61 AZM161 TECHNICAL DATA MECHANICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS Housing Glass-Ţbre reinforced self- Contacts Fine silver extinguishing thermoplastic Contact ConŢguration Double-pole, double-break with Actuator Key Stainless steel electrically separated contact (defeat-resistant design) bridges Degree of Protection IP67 Contact Gap 2 × 2 mm (minimum) Unlocked Holding Force 30N (7 pounds) Contact Rating 2A (230VAC) Travel for Positive-Break 8mm (0.315 inches) Switching Action Slow-action, positive-break NC contacts Force to Reach 10N (Approx. 2.4 pounds) Positive-Break Short Circuit Protection Fuse 6A (time-delay) Closing Force Approx. 15 N (3.4 pounds) Rated Insulation Voltage 250VAC Operating Temperature –13°F to +104°F Rated Impulse 6kV Withstand Voltage Mechanical Life 1 million operations Type Terminals* Screw terminals with self-lifting Conformity to Standards IEC 947-5-1 clamps for up to 13 AWG ţ exible EN 60947-5-1 2 stranded wire (2.5mm ) DIN VDE 0660-200 BG-GS-ET-15 Available Solenoid 24VDC, 110VDC, 230VDC UL Supply Voltages (Vs) 24VAC/50Hz CSA 115VAC/60Hz 230VAC/50Hz Solenoid Locking Force 2,000N (440 pounds) Solenoid Power 10W (maximum) Consumption Key Return Force 0N Solenoid Duty Cycle 100% Minimum Closing Radius 5.9" (150mm) with B1 and B1E actuating key Solenoid Pull-in Voltage (0.85 to 1.1) Vs 3.7" (95mm) with B6 actuating key Solenoid Drop-out Voltage (0.2 to 0.75) Vs *Optional cage clamp terminations available. Please consult factory. SWITCHING DIAGRAMS & CONTACT SCHEMATICS (Solenoid-mechanism not energized) AZM 161SK-24rk AZM 161SK-24rka 0 811,7 0 811,7 51 63 51 63 13-14 13-14 A1 A1 11-12 11-12 41-42 21-22 21-22 31-32 31-32 A2 A2 8,4 8,8 8,4 8,8 52 64 52 64 0 1,2 3,0 0 1,2 3,0 (*) (*) 63-64 63-64 51-52 51-52 31 32 13 14 31 32 13 14 1,5 1,5 41 42 21 22 41 42 21 22 AZM 161SK-33rk AZM 161SK-33rka 0 811,7 0 811,7 51 63 51 63 33-34 33-34 A1 A1 13-14 13-14 21-22 21-22 41-42 41-42 A2 8,4 8,8 A2 8,4 8,8 52 64 52 64 0 1,2 3,0 0 1,2 3,0 (*) (*) 63-64 63-64 51-52 51-52 33 34 13 14 33 34 13 14 1,5 1,5 41 42 21 22 41 42 21 22 AZM 161SK-12/12rk AZM 161SK-12/12rka 62 Note: Above diagrams are with actuator key inserted and solenoid de-energized. 2 .08 AZM161 TECHNICAL DATA DIMENSIONS (Switch & Actuator Keys) 78 3.07 4 Ş 40 72 .18 1.57 2.83 2 5,5 .22 M16 (AZM161SK-12/12… only) M16 30 M16 1.18 30 mm 1.18 56 inch 2.20 130 5.12 AZM161-B1 AZM161-B1E AZM161-B6 b 10 56 .39 2.20 ş 5,5 .22 + 40 0 - 1.57 ş 5,5 56 .22 2.20 ş10,5 .41 16 .63 27 2 a 27 2 b 1.06 .08 1.06 .08 40 1.57 63 a 32,7 1.29 5 .2 29 1.14 7 18 8 .28 .71 .31 30 32,7 1.29 1.18 5 14 .20 .55 ş 5,5 11 .22 .43 30 90 1.18 3.54 16 .63