Home > Acrodyne offers Limitorque MXa actuators

Acrodyne offers Limitorque MXa actuators

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article image Limitorque MXa actuators feature an SIL 3 capable rating
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Limitorque MXa actuators, now available from Acrodyne , are designed to provide reliable actuation in critical environments without compromising Safety Instrumented Systems.

These actuators feature an SIL 3 capable rating, which was obtained from Exida Certification Services after passing rigorous failure mode effects design analysis (FMEDA) and total time in service tests.

They have been designed with a range of features that make them ideal for use in critical environments requiring SIL 3 certification, such as LimiGard technology, which automatically monitors the health of each coded signal.

LimiGard is designed to ensure that no component failure can cause the actuators to move unexpectedly.

Limitorque MXa actuators also feature a unique absolute encoder designed with Built-in Selft-Test (BIST) capability. The BIST feature confirms the sound operation of the encoder, ensuring the actuator is operating safely. By comparing redundant signals, the LimiGard design of the encoder is key to achieving a SIL 3 capable rating and contributes to the health of the actuator.

MXa SIL 3 capable rating is a standard configuration that includes S1 and S2 contacts as well as the monitor relay. This ensures that the user does not need to utilize external SIL rated contacts to bypass the actuator’s internal contacts that are not SIL rated.

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