The P403 is a high-performance microstepping driver suitable for 2-phase and 4-phase hybrid steppers. It features an advanced bipolar constant-current chopper circuit with current control technology, making it ideal for motion control applications requiring low noise, low vibration, high speed, and high precision. The driver has a supply voltage of up to +40Vdc and a current rating of up to 3.5A. It operates at an inaudible 20kHz chopping frequency and accepts TTL compatible and optically isolated input signals. Other features include automatic idle current reduction, mixed-decay current control for reduced motor heating, 14 selectable step resolutions, microstepping up to 51,200 steps/revolution, compatibility with 4, 6, or 8 lead wire motors, and protection against overcurrent, overvoltage, and short circuits. The P403 is compact in size and made of black coated aluminium with an integral heatsink.
The Astrosyn P403 is a high-performance microstepping driver designed for motion control applications requiring low noise, low vibration, high speed, and high precision. It supports both 2-phase and 4-phase hybrid stepper motors with supply voltages up to +40Vdc and adjustable drive currents from 1.3A to 3.5A.
The device features an advanced bipolar constant-current chopper circuit with a TTL compatible and optically isolated input signal interface. It offers mixed-decay current control to reduce motor heating, automatic idle current reduction, and protection against overcurrent, overvoltage, and short circuits.
| Drive current | Adjustable from 1.3A to 3.5A |
|---|---|
| Supply voltage | +24V to +40Vdc |
| Step resolutions | 14 selectable step resolutions in decimal and binary |
| Microstepping resolution | 51,200 steps/revolution |
| Chopping frequency | 20kHz (inaudible) |
| Pulse signal speed control | Maximum frequency 300kKHz |
| Logic signals current | 6mA to 30mA |
| Dimensions (WxHxD) | 45 x 132 x 76 mm |
| Mass | 0.355kg |
The driver is suitable for 2-phase and 4-phase hybrid steppers.
It is protected against overcurrent, overvoltage, and short circuits.