IM1705ET Absolute Encoder Integrated Stepper Motor (NEMA17)
Product Overview
The IM1705ET is a NEMA17 (42mm) integrated stepper motor featuring a single-turn absolute encoder with Modbus RTU communication. This advanced all-in-one solution combines a stepper motor, driver, and absolute encoder in a standard 42mm frame, delivering holding torque from 0.25 N·m to 0.80 N·m. The IM1705ET retains exact position information through power cycles, eliminating the need for homing sequences in single-revolution applications.
The IM1705ET supports Modbus RTU protocol over RS485, providing seamless integration with PLCs, HMIs, and industrial control systems. The single-turn absolute encoder provides 4096 positions per revolution, offering precise position knowledge within a 360-degree range. The closed-loop feedback ensures no missed steps and smooth operation up to 3000 RPM.
The integrated design simplifies installation and reduces system cost compared to discrete motor, driver, and encoder solutions. Operating on 8-48V DC, the IM1705ET includes comprehensive protection against overvoltage, undervoltage, overcurrent, and over-temperature conditions. Digital I/O enables direct sensor and actuator connectivity.
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Technical Specifications
| Parameter | Value |
|---|---|
| Frame Size | NEMA17 (42mm × 42mm) |
| Encoder Type | Single-turn Absolute |
| Communication | Modbus RTU (RS485) |
| Working Voltage | 8~48V DC |
| Holding Torque | 0.25 - 0.80 N·m |
| Max Speed | 3000 RPM |
| Protection | Overvoltage, undervoltage, overcurrent, over-temperature |
Application Scenarios
- Robotic Joints: Position retention and immediate recovery
- Rotary Indexing: Single-revolution precision positioning
- Medical Devices: Fail-safe positioning systems
- Valve Control: Position-aware valve actuation
- Automated Machinery: Power-loss recovery without re-homing
Related Documentation
Last updated: 2026-05-28