Metronix adds safety to DIS-2 drive

  • August 02, 2012
Metronix adds safety to DIS-2 drive
Metronix adds safety to DIS-2 drive

August 2, 2012 - Metronix adds safety to its DIS-2 decentralized drive solution. The Safe Torque Off functionality (PLe category 3 according to ISO 13849-1) provides machinery and automation builders with a highly-affordable means of delivering advanced machine safety features to their customers. This safety feature is also becoming highly valued in the machinery marketplace as it typically increases machine uptime.

The footprint of the safety-equipped DIS-2 is identical to previous modules, making it simple for existing users to upgrade machine designs to take advantage of the new functional safety capability. Many machine builders like decentralized motion control solutions because they simplify machine design and assembly. For example, by integrating the motor and encoder connections inside the module, DIS-2 reduces the cabling normally required. When used as a decentralized drive it also allows machine builders to reduce the size of automation control cabinets. DIS-2 drives can be used for speed, torque and positioning control to provide very cost effective solutions to many common processing and packaging requirements. The range of potential applications is very broad and includes simple automation solutions for common manufacturing functions such as synchronizing and sorting, materials handling and conveying systems, robotic unmanned trucks, and axes that automate auxiliary functions such as set up and guarding on machine tools or printing presses. Modular machinery or plant automation - which can be assembled easily to suit specific applications by combining modular elements - are also common applications for this form of decentralized motion control technology. The DIS-2 can be easily integrated in automation solutions by digital and analog interfaces as well as by exploiting DIS-2's integrated field bus communication interface. To realize multi-axis systems for higher performance and more complex movements such as interpolated motion, CANopen, PROFIBUS and EtherCAT fieldbus networking interfaces are available. As standard, DIS-2 modules are available with two choices of output ratings: 2A continuous/6A peak with a 230/115 VAC power supply, or 15A continuous/40A peak with a 48 VDC power supply, and come with built-in digital and analog I/O, Safe Torque Off capability, an RS232 port, plus a universal encoder interfacing capability that allows connection to Hall sensors, resolvers, analog/digital incremental encoders, or single/multiturn absolute encoders with HIPERFACE. Users can also select any one of three fieldbus options: CANopen, EtherCAT or PROFIBUS. A powerful Windows-based programming, configuration and diagnostic software tool is available to users to create embedded drive and machine control software for Metronix DIS-2 systems. The modules are very robust and are protected up to IP67, and can be supplied standalone, or ready-mounted onto the user's choice of brushless synchronous motor. DIS-2 is very compact, measuring 5.6 x 8 x 11.2 cm (2.2 x 3.15 x 4.4 inches). Metronix offers mounting adapter plates for numerous brands of servo motor - making it possible to configure systems for lowest cost or optimum dynamic performance.

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