Delta RMC101 - Manual (Page 30)

RMC100 Modules RMC100 Startup Guide
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drive for servo valves. The full-scale output of the VC2100 is adjustable from ±10
to ±200mA in 10mA steps.
A short description of each communication module follows. The RMC part number
designation of each module is in parentheses.
MDT Input with Analog Output (-Mn)
Magnetostrictive displacement transducers are designed for use in rugged industrial
environments. They are non-contact, wear-free, highly reliable, and offer accurate
and repeatable linear position measurement. In the motion control industry
magnetostrictive displacement transducers are typically inserted into hydraulic
cylinders for measurement of the cylinders’ extension/retraction position.
An MDT transducer communicates the position measurement via Start/Stop pulse or
Pulse Width Modulation.
SSI Input with Analog Output (-Sn)
Synchronous Serial Interface (SSI) is a widely accepted controller interface.
Position data from the sensor is encoded in a binary or Gray Code format and
transmitted over a high-speed synchronous interface.
SSI transducers and absolute encoders offer the following advantages:
• Linear or Rotary
• High resolution. Up to 2 µm (approx. 0.00008")
• Noise immunity
• Cost effective data transfer (only one 6-wire cable is needed)
• Transmission rate independent of data length and resolution
• Transmission over long distances
• Direct connection to the RMC’s SSI interface module
Quadrature Input with Analog Output (-Sn)
The QUAD interface allows the RMC100 control a wide range of motors and linear
actuators with quadrature encoder feedback.
• Features of the Quadrature Encoder Interface:
− 4,000,000 counts/second
− A and B Inputs
− Index Input with High-speed 125ns Position Latch
• Drive Amplifier Interface:
− Isolated ±10V, 12-bit Analog Drive Output
− Amplifier Enable Output
− Amplifier Fault Input
Index/MDT/Overview
Index/SSI/Overview
Index/quadrature/Overview