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The Triconex 3401 is a high-precision, single-axis stepper controller module engineered for integration within the 1734 POINT I/O motion control architecture. This module provides deterministic pulse-train outputs ranging from 200 kHz to 1 MHz, enabling precise open-loop control of stepper motor drives without requiring external encoder feedback. It is widely utilized in high-speed automated assembly, pharmaceutical packaging, and semiconductor manufacturing where localized, cost-effective motion control is essential. By offloading step and direction logic from the main processor to the 3401 module, engineers can significantly reduce network latency and CPU overhead, ensuring synchronized motion while maximizing system uptime in critical process environments.
| Model | 3401 |
| Brand | Invensys Triconex |
| Series | 1734 POINT I/O |
| Module Type | Stepper Controller (1 Axis) |
| Pulse Output Range | 200 kHz to 1 MHz |
| Feedback | Open Loop (No Encoder) |
| Power Consumption | 85 mA Max @ 5 VDC |
| Operating Temperature | 0 to 60 deg C |
| Storage Temperature | -40 to 85 deg C |
No, the 3401 is designed for open-loop control and does not require encoder feedback, which simplifies wiring and setup for basic stepper applications.
Yes, the 3401 is designed as a slice-type I/O module compatible with the 1734 POINT I/O backplane, supporting hot-swappable replacement during system operation.

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