Janus Dual Axis DSCStep™ Drive

The DigiRout 200 has high torque NEMA 23 Square Frame Digital Motors available for all axes . The picture above shows the construction of the motor.

The Janus

The diagram above shows a block diagram of the controller. The step signal provides a position interrupt to the DSController. The firmware program of the DSC digitally filters the accumulated position reference and calculates the sin/cosine references.

The PI (Proportional & Integral)controllers read the A/D (Analog to Digital) data provided by the coil current sense circuits at a rate of 25 Khz (25,000 times per second). A calculated PWM (Pulse Width Modulated) signal is then output to each coil's Mosfet Power stage providing an averaged voltage output. The reference filtering and feedback current control provides smooth motion to the motors.

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The advanced DSCStep™ filtering smooths the choppy step & direction signals controlling the motor current to a true Sine wave for smooth motion.

Here is a video showing the smoothness and speed of the Janus DSCStep Dual Axis Drives:

JanusAxisDrives.wmv

**Janus DSCStep™ Dual Axis 6a 36V**- MC23-160 (NEMA 24) Dual Shaft, 165 oz-in Peak 3A (double stack also available)
- 36V, 8A, Unregulated Power Supply, 110V/220V
- DSC (Digital Signal Controller) digital drive
- Stall Detection with Automatic Shutdown & Alarm
- Advanced Step & Direction DSCStep Filtering for Low Vibration
- Economical (4 Transistor) and Robust Unipolar Transformer Coupled Mosfet Output Drive
- Synchronous Rectification for Lower Drive Heating
- Advanced PI (Proportional & Integral) Digital Current Controller
- Divide by 32 microstep Since Wave Current Control
- Aluminum Heatsink & Cover