MR-J4W offers simple XY table control with wear monitoring
The latest Mitsubishi MR-J4W2-B servo amplifier to control the movement of an XY table offers machine builders significant advantages in size, programming, and materials saving.
XY tables are used in a variety of applications where either the tool or the work-piece have different positioning requirements. Usually horizontal motion involves 2 (or more) axes of servo performing linear or circular interpolation.
XY tables utilize servo motor technology for accurate positioning, where two servo motors are connected to a table to move the application in X and Y direction.
In a simple application, the two motors are controlled by the latest Mitsubishi MR-J4W2-B servo amplifier, and the movement and interpolation is calculated with the simple motion controller LD77MS.
The MR-J4Ws common bus architecture also enables energy savings of up to 30% to be realised, and the two-in-one amplifier also reduces wiring by up to 50%, and set-up times are reduced by up to 80%.
In combination with a L Series PLC and its built in features, a complete solution can be offered with less components, avoids the need for magnetic contactors, reduces cabinet space and saves inventory. All the internal servo parameters can be set directly from the PLC using the SSCNET III/H Network.
Monitoring machine wear
In general, XY tables do not require a lot of maintenance, and are considered to be highly accurate, easy-to-use. Mechanical parts however can still be a problem after extended operating periods. Depending on the loading, ball screws within XY tables and other mechanical components can be subject to high levels of wear and may need to be renewed regularly. Monitoring functions integrated within the MR-J4 series estimate frictions & vibrations which support preventative maintenance of machine components.
Mitsubishi GX Works software has a dedicated section for the general positioning and parameter setup. Additionally, by using PLCopen function blocks, movements like absolute positioning can be realised without intensive programming. The function blocks further reduces set-up and learning time as well as engineering time. Alternatively, the G/CAD converter is used to create the positioning from CAD data.
Mitsubishi Simple Motions is available from 999 Mitsubishi.
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