MODBUS RTU NEMA23 Absolute Encoder Integrated Stepper Motor (IM23ET)
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[edit]Description
[edit]The IM23ET Series integrated motors perfectly integrate stepper drivers and stepper motors into a single unit. They are fully compatible with 1599-revolution mechanical absolute encoders, saving installation space while streamlining wiring connections and reducing design and production costs.
With a holding torque range of 0.8-3.0 N.m and a supply voltage of 24-60 VDC, these NEMA23 motors are ideal for demanding automation applications. They support Modbus/RTU over RS485, enabling easy integration into industrial control networks.
The built-in programmable multi-turn feedback supports user-defined home position with memory - no sensor required. The software limit function is more reliable than mechanical limit switches, and the 4096-line (16384 counts) encoder feedback provides precise closed-loop control.
Specifications
[edit]| Parameter | Value |
|---|---|
| Frame Size | NEMA23 |
| Holding Torque | 0.8-3.0 N.m |
| Supply Voltage | 24-60 VDC |
| Communication | Modbus/RTU, RS485 |
| Encoder | Multi-turn absolute (1599 revolutions), 4096-line (16384 counts) |
| Input Compatibility | 5-24 VDC |
| Output | Open-collector (OC), withstand up to 30 VDC |
| Filter Frequency | 50 kHz - 5 MHz adjustable (default 300 kHz) |
| Protection | Over-voltage, under-voltage, over-current, winding open-circuit, position deviation |
Motor Parameter Table
[edit]| Model | Total Length L (mm) | Shaft Dia. (mm) | Phase Current (A) | Resistance (Ohm) | Inductance (mH) | Holding Torque (N.m) | Inertia (g.cm2) | Weight (g) |
|---|---|---|---|---|---|---|---|---|
| IM23ET12S | 92.8 | 8 | 0.44 | 1.4 | 1.2 | 28 | 820 | |
| IM23ET20S | 109.8 | 8 | 0.50 | 2.0 | 2.0 | 48 | 1200 | |
| IM23ET12B | 92.8 | 8 | 0.44 | 1.4 | 1.2 | 28 | 820 | |
| IM23ET20B | 109.8 | 8 | 0.50 | 2.0 | 2.0 | 48 | 1200 |
Features
[edit]- 1599-revolution mechanical absolute encoder for precise position feedback
- Battery-free multi-turn absolute positioning
- Software limit function replaces mechanical limit switches
- 3-channel isolated digital signal input (X0, X1, X2)
- Configurable input functions: general input, pulse, limit, home, emergency stop, speed switch, interrupt positioning
- Closed-loop control with 4096-line encoder feedback (16384 counts)
- Torque modes: homing on collision, constant torque, object gripping
- Available in forward (S) and rear (B) cable exit options