TLS-GD2 Compact Housing with Optional Key Release

The TLS-GD2 from Allen-Bradley Guardmaster™ is a positive mode, tongue operated guardlocking interlock switch that locks a machine guard closed until power is isolated and ensures that it remains isolated while the guard is open. It has three safety (N.C.) contacts and two auxiliary (N.O.) contacts. The TLS-GD2 head has two entry slots and it can be rotated to provide four actuator entry points. A blanking plug is provided to seal the unused slot.

The guard may only be opened when a signal is applied to the TLS-GD2’s internal solenoid which releases the lock mechanism. This signal can be via CU1 Electronic Timer Relays or CU2 Stopped Motion Detectors. Therefore the TLS-GD2 is ideal for machines which do not stop immediately or where premature interruption of the machine could cause damage to tooling and components or cause an additional hazard.

The TLS-GD2 is available in three types. Aside from the standard version, the TLS-1 GD2 and TLS-3GD2 incorporate a power-to-release function. Three manual release points with security screws allow the locked TSL-GD2 to be released in emergencies. An optional lid-mounted key-release version can also be supplied. All types have five sets of contacts in various forms and are suitable for use with PLCs.

A stainless steel actuator guide is fitted to protect the unit from actuator damage due to poor guard alignment or guard wear.

Note: With the ‘power to lock’ version, provisions may be required to ensure that a dangerous situation can not result from open circuit faults or power cuts.

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