Press Release

New Delta Servo Motion Controller Allows Sophisticated Motion Using Small and/or Inexpensive Programmable Controllers With Synchronous Serial Interface Compatible Feedback

Delta Computer Systems today announced their newest RMC Family motion controller, the RMC100-S1-DI/O, that combines sophisticated motion control for small and inexpensive Programmable Controllers with the advantages of Synchronous Serial Interface (SSI) for transducer feedback.

Applications include precision operations such as tooling and tool handling; injection, rim, and blow molding; casting and forging; pinch rollers, winders, and wrappers; edgers, headrigs, veneer lathes, and flying cutoff saws; cyclic testing; and mechanical animation.

Benefits of the new motion controller include:

allowing employment of any of a wide variety of SSI feedback devices
higher noise immunity
higher resolutions and precise, coordinated, and absolute servo positioning for demanding automation applications
eight in, 18 out discrete I/Os
three modes of discrete I/O interface capability

Delta's RMC100-S1 motion controller, with DI/O provides three discrete I/O modes:

Command Mode, which allows a PLC to send commands to the RMC to request status from the module, including position, drive, status, bits, and more;
Parallel Position Mode, selects axis and motion profile from three inputs while at the same time, the PLC can send 16-bit position or open-loop drive values to the module;
Input to Event Mode, the simplest for many repetitive process applications wherein many applications may not even require a Programmable Controller. Each of the DI/O's first 16 inputs can be used to trigger programmable event sequences on any number of axes on the RMC while ouputs can be configured to indicate in-position and error status, or to be program controlled.

With Synchronous Serial Interface (SSI), the new Delta motion module supports a wide variety of feedback devices, including magnetostrictive displacement transducers (MDTs), absolute encoders, as well as laser measuring devices. Transducers with SSI interfaces include: Balluff MDTs; Baumer Electric absolute encoders; Heidenhain absolute encoders; MTS Systems Corp Sensors Division's (Temposonics) MDTs; Stegmann, Inc. absolute encoders; and TR Electronic MDTs, absolute encoders, and laser measuring devices.

Other SSI advantages include higher noise immunity, absolute position information, and higher precision. Precision available from MDTs, for example, can reach resolutions to 2mm (micron) or 0.00008 inches

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