Heavy-Duty Solenoid-Latching SERIES TZF/TZM Safety Interlock Switch Features & Benefits • Solenoid-locking & spring-locking designs … controls access to hazardous areas until safe conditions exist. • Highly tamper-resistant … difficult 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, galvanized-steel actuator key … tolerates mechanical abuse without damage. • Rugged, corrosion-resistant housing … tolerates hostile environments. ® • Three optional key entry locations … rotatable actuator head provides installation versatility. Description • Independent actuator key position and locking pin position monitoring contacts … provide a higher degree The TZF/TZM Series is designed for machines/work cells of safety. where access to a hazardous work area must be controlled until safe conditions exist. Their solenoid-latching feature • Padlockable key … for added security during equipment permits locking a machine guard until dangerous conditions, maintenance. which may exist immediately after removal of power, have • Meets rigid safety agency standards … BG, UL, CSA. abated. Solenoid-latching may be controlled by a time delay, • Wide selection of actuating keys … to meet diverse motion detector, position sensor or other suitable component. application requirements. The unit features independent actuator key (guard) position • Special types for food industry … please consult factory. and solenoid-latching monitoring contacts. These permit the prevention of machine restart until the guard is closed and the solenoid-latching pin is in the locked position. Typical Applications The TZF/TZM Series consists of an electromechanical safety interlock switch with “positive-break” contacts and a locking The TZF/TZM Series is intended for use as a safety interlock actuator key. In addition, the TZFS model features an auxiliary switch on movable machine guards which must not be manual unlocking device … the latter provided to aid in opened until dangerous conditions, which may exist after the installation and for use in the event of a power failure (when removal of power, have abated. Such conditions are flywheel using the “unlocking by solenoid” model). overrun, spindle momentum, unstable rest positions, etc. Typical applications are textile machines, stamping presses, Operation articulating robot arms, mixing machines, metal working equipment, printing presses and packaging machinery. The TZF/TZM Series of electromechanical safety interlock switch assembly consists of a rugged switch, a solenoid- operated latching mechanism, and a geometrically-unique 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 latching mechanism. The guard may only be opened by energizing or de-energizing (depending upon model) the 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. ® is a trademark of SCHMERSAL 58 SERIES TZF/TZM AVAILABLE MODELS AND ACCESSORIES AVAILABLE STANDARD MODELS 1 (Includes ⁄2" NPT Plastic Conduit Adapter and TZ/CO Standard Actuator key) Part Number Contacts Description Actuating key locked by spring and unlocked by energizing solenoid TZFCS/96-* 2NC & 2 NO with right-side key entry. (Field-rotatable for entry from front or rear). (NC contacts in series) Actuating key locked by energizing solenoid and unlocked by spring TZMC/96-* 2NC & 2 NO with right-side key entry. (Field-rotatable for entry from front or rear). (NC contacts (See Note 1 below) in series) 2 *Please specify solenoid operating voltage via addition of one of the following suffix codes: Note 1: Use of this model permits the guard to be opened in the event of a power failure. Voltage Add Suffix Generally accepted safety standards/practices 24VDC No Suffix suggest this model only be used after conduct- 115VAC -115 ing a thorough risk evaluation in the context of 230VAC -230 the application. Example: TZMC/96-115 OPTIONAL ACTUATOR KEYS & ACCESSORIES Part Number Description TZ/CO Standard straight actuator key (13" minimum closing radius) TZ/CW Right-angled straight actuator key (11.8" minimum closing radius) TZ/COR Radial entry actuator key (11.8" minimum closing radius) TZ/CK Short straight actuator key (6.3" minimum closing radius) TZ/CWR Right-angled bent actuator key (11.8" minimum closing radius) TZ/COF/HIS.1 Pivoting straight actuator key (rear-mounted) (13.8" minimum closing radius) TZ/COF/HIS.2 Pivoting straight actuator key (top-mounted) (13.8" minimum closing radius) TZ/CORF/HIS.1 Pivoting straight actuator key (rear-mounted) (7.1" minimum closing radius) TZ/CORF/HIS.2 Pivoting straight actuator key (top-mounted) (5.9" minimum closing radius) TZ-69 Straight safety interlock auxiliary release key (for TZFCS/96 models only) TZ-75 Right-angled safety interlock auxiliary release key (for TZFCS/96 models only) AZS2305 Fail-to-Safe Timer (Please see page 74) FWS1205B Fail-to-Safe Standstill Monitor (Page 76) 59 21 22 43 44 43 44 SERIES TZF/TZM TECHNICAL DATA MECHANICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS Housing Glass-fibre reinforced self- Contacts Fine silver extinguishing thermoplastic Contact Configuration Double-pole, double-break with Actuator Key Galvanized steel electrically separated contact (defeat-resistant design) bridges Degree of Protection IP67 Contact Gap Guard monitoring: 2 × 3.5 mm Unlocked Holding Force 20N (4.8 pounds) Solenoid monitoring: 2 × 3 mm Travel for Positive-Break 14.5 mm Contact Rating 8A (250VAC) Force to Reach 20N (Approx. 4.8 pounds) Switching Action Slow-action, positive-break NC Positive-Break contacts Closing Force Approx. 10 N (2.4 pounds) Short Circuit Protection 10A (slow-blow) Operating Temperature –13°F to +104°F Rated Insulation Voltage 250VAC Mechanical Life 2 million operations (minimum) Rated Impulse 4kV Withstand Voltage Shock Resistance 30g / 11ms Type Terminals Screw terminals with self-lifting Vibration Resistance 20g / 10…55Hz clamps for up to 13 AWG solid Conformity to Standards IEC 947-5-1 2 wire (2.5mm ) or 13 AWG EN 60947-5-1 2 stranded (1.5mm ) wire DIN VDE 0660-100 Available Solenoid 24VDC BG-GS-ET-15 Voltages 115VAC UL 230VAC CSA Solenoid Power 8.8W (maximum) Solenoid Locking Force 1,700N (380 pounds) Consumption Minimum Closing Radius Dependent upon actuator key used. Solenoid Duty Cycle 100% Please see actuator key selection chart. WIRING DIAGRAM* DIMENSIONS 12 21 33 34 E2 (-) 24VDC E1 (+) 11 12 33 34 * Actuating key not inserted and solenoid unlocked. M20x1 TZ/69 Three-square socket wrench for versions TZFCS…(supplied) 60 SERIES TZF/TZM ACTUATOR KEY SPECIFICATIONS ACTUATOR KEYS TZ/CO TZ/CW TZ/COR 2 TZ/CWR TZ/COF/HIS.1 TZ/COF/HIS.2 TZ/CORF/HIS.1 TZ/CORF/HIS.2 TZ/CK 61