Limitorque MX - Acrodyne

Control & DiagnosticsControl is expected in a smart actuator. The MX isnoted for simplifying valve control automation in threecritical methods of control:Switch KnobMagnetic FieldMagnetic Field• Calibration/set-up• Normal operation• Diagnostics & troubleshootingThe MX was the first non-intrusive actuator to equip Userswith LCD dialog screens in the language of their choice. MXnow uses a graphical dot matrix display that improves thevisibility of the display. The use of this type of LCD permitsthe support of any language. In fact, in addition to English,Spanish, German, French, Italian, and Portuguese, the MX nowincludes four new languages – Mandarin, Russian, BahasaIndonesia and Katakana – with a capacity for even more. Theorientation of the text can be configured to rotate 180° anddiagnostic graphs displayed for clearer data collection.Simple “Yes” and “No” responses to dialog questionsconfirm the set-up of the MX via solid state Hall effectdevices in both knobs. No special tools or remote devicesare required. And the MX is “fit for service”, offering thewidest range of configuration menus of any non-intrusive,smart actuator.Unit “Opens”NOTE: Illustration forinformation only.Unit “Off”Hall effect devicesinterlocked toprevent operationDiagnostics should be easy to read and decipher. The MXdiagnostic enhancements now offer a BIST (Built In SelfTest). The BIST feature is also designed into a state-of-theartcontrols platform that verifies and validates the integrityof its components. The result is a design which aids theUser in meeting the SIL (Safety Integrity Level) requirementsof IEC 61508. While an electronic actuator does not havea SIL rating by itself, placing a smart device into any plantsystem should enhance the ability of a given safety systemto achieve its preferred SIL rating. Any device which incorporatesfully developed BIST features provides assurance tothe User that the device has been designed with plant-widesafety and integrity of operation in mind.The “View Diagnostics” menu selections now includemore definitive routines which can isolate troubleshootingto “root cause” error codes. These root cause codes canbe used in conjunction with BIST. A well designed BISTbased system can do more than just report failures in theelectronic sub-systems. It can also determine failures or