Each tGard stack has between one and ten slots for different elements which create an interlock that is configured for your specific application. Each slot can have a mix of different things, this page gives technical details about tGard HLC.
If you are not familiar with tGard we recommend you first read about the range in general on the tGard product page or look at our how to buy tGard page to understand the process of configuring the perfect stack.
The High Level Coded (HLC) element for the tGard configurable access & control unit for machine guarding provides protection against defeat with a high misalignment tolerance on the actuator and provides safety outputs through OSSD or SSR configurations.
The tGard High Level Coded (HLC) element can also incorporate safety contacts from associated tGard elements.
Technical Specification
|
Performance Level (EN ISO 13849-1:2015) |
Up to PLe |
|
Category (EN ISO 13849-1:2015) |
Up to Cat.4 |
|
SIL (according to IEC 62061) |
Up to SIL CL3 |
|
Diagnostic Coverage |
A maximum DC of 99% can be achieved with suitable monitoring |
|
PFHD |
4.16×10(-9) |
|
Demand Mode (according to IEC 62061) |
High |
|
Applied Standards |
BS EN ISO 13849-1:2015 |
Reteaching Actuator Instructions
The tGard High Level Coded element is reteachable up to 10 times using the Teach Token accessory which can be used in the event of a damaged or lost actuator. Teach Token should be kept secure. Note: Teach Token sold separately.
Power the unit and ensure nothing is present in front of the tGard HLC element of the unit. The LED indicator should be red or purple.
Present the TNX teach token, for 5 seconds. The LED should flash purple. If it is not flashing, please repeat this step.
Present the new actuator to the RF element of the unit. The LED should become green or flashing between green and red as the new actuator is taught and current state is then shown. The device should then be tested before use.
STEP 1
Power the unit and ensure nothing is present in front of the tGard HLC element of the unit. The LED indicator should be red or purple.
STEP 2
Present the TNX teach token, for 5 seconds. The LED should flash purple. If it is not flashing, please repeat this step.
STEP 3
Present the new actuator to the RF element of the unit. The LED should become green or flashing between green and red as the new actuator is taught and current state is then shown. The device should then be tested before use.
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