IRO23 is a high-integrated and compact size stepper driver. It adopts standard RS485 communication
protocol, can be connected with PLC, HMI, industrial computer and other upper computer with only two
communication lines. Up to 32 axes of motion platform networking can be achieved with its built-in motion
control commands.
IRO can be set to 1-256 subdivisions and adopts built-in micro-subdivision technology, which can achieve
high subdivision effects even under low subdivision conditions, ensuring that the motor operates with uniform
step intervals and no large or small step problems.
1 Electrical Characteristics
| Explanation | IRO23 | |||
|---|---|---|---|---|
| Minimum Value | Typical Value | Maximal Value | Unit | |
| Continuous output current | 0.5 | - | 5.6 | A |
| Power Supply Voltage (DC) | 15 | 24/36 | 50 | VDC |
| Control signal input current | 6 | 10 | 16 | mA |
| Control signal input Voltage | - | 5 | - | VDC |
| Overvoltage point | 54 | 55 | 56 | VDC |
| Step frequency | 1 | - | 1000 | KHz |
| Insulation Resistance | 100 | - | - | MΩ |
2.2 Suitable for Standard Motor
The integrated driver can be used for NEMA23 open-loop hybrid stepper motors and linear screw stepper motors of different specifications from major motor manufacturers.
The driver can be sold separately.
If you need to purchase our driver and motor complete set of products, we generally recommend the following two standard models.
Other models of stepper motors or suitable screw stepper motors can be customized according to customer needs.
| Model No. | Holding Torque (N.m) | Motor Length (mm) | Driver Thickness (mm) | Weight (kg) |
|---|---|---|---|---|
| IRO23-10 | 1.0 | 56±1 | 21.5±1 | 0.9 |
| IRO23-20 | 2.0 | 80±1 | 21.5±1 | 1.2 |
IRO23 RS485 stepper motor driver dimensions:

IRO23-10 RS485 integrated stepper motor specifications and motor torque-frequency characteristic curve:

IRO23-20 RS485 integrated stepper motor specifications and motor torque-frequency characteristic curve:

2.3 Use Environment
| Cooling Mode | Natural Cooling or forced air cooling |
|---|---|
Service Environment Occasion | Keep away from heating equipment, dust, oil mist, high humidity & strong vibration. |
| Temperature | -10℃ ~ 50℃ |
| Humidity | 40 ~ 90% RH |
| Vibration | 5.9 m/s² MAX |
| Storage temperature | -20℃ ~ 60℃ |
| Use Elevation | Below 1000 meters |
| Weight | 0.7 KG |
The control signal and the power supply input port use the 8Pin 2.0 mm terminal.

| Pin | Signal Name | Function Description |
|---|---|---|
| 1 | VDC | Power positive input: DC VOLTAGE 15-50VDC |
| 2 | GND | Negative power input: GND of DC voltage |
| 3 | PUL | Receiving level 5VDC, pulse control signal input (negative) (left limit) |
| 4 | PUL- | - |
| 5 | DIR | Receiving level 5VDC, direction control signal input (negative) (back to zero) |
| 6 | DIR- | - |
| 7 | ENA | Receiving level 5VDC, enable control signal input (negative) (right limit) |
| 8 | ENA- | - |
| 9 | TXD | Serial port RS485 TXD |
| 10 | RXD | RXD serial port RS485 |
Return to Zero with Positive Limit Signal as Zero

Return to Zero with Negative Limit Signal as Zero

IRO23 RS-485 Stepper Motor Controller User Manual 
Software Modbus Poll 
AdamPower Software
More Information on detail, please feel free to contact me 
- Availability: In Stock
- Model: IRO23
- Brand: Adampower