Profile: Introl Design, Inc. is a provider of motion controllers and motion drives. Our sine wave controllers provide smooth motion for constant torque applications, even at low speeds. We can provide with a complete control package. We design and manufacture our own controllers, drives, interfaces, & accessories, & supply compatible motors. The 601 is a 6-decade, high resolution digital speed controller and position synchronizer. The unit is fully programmable on the fly through the front panel keypad or through the RS422/485 serial port. This controller is truly bi-directional, and will accept single/dual channel encoders and magnetic pickups as feedback & master reference. The Model IPC2100 has many available versions. This group of controllers are for absolute positioning using incremental encoder position feedback with servo/regen drives or open loop with steppers/microsteppers. All versions are capable of referencing with excellent repeatability. There are many options available to add on to the basic unit, including RS422 serial communication, large data memory, teach mode, and PLC interface. Model DC100A-LC controller takes a basic model DC100A, and adds an internally mounted length control card. It incorporates all the functions of the DC100A and a length controller, converting it to a stand-alone single axis controller. The length control card utilizes differential encoder inputs with x4 logic, providing 4000 counts of position resolution per motor revolution. All parameters can be programmed on the fly, and are installed through a serial communication link with one of our operator interfaces or a computer. As a stand-alone, this controller can be programmed with a single preset, executed each time the run input is initiated, or have one of four preset indexes selected externally.