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NEMA23 RS-485 Integrated Stepper Motor

MODBUS RTU, RS485

$109.00

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IRO23 NEMA23 RS-485 Integrated Stepper Motor

Product Introduction

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.

Electrical Characteristics

Explanation	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

Product Advantages

High Integration: Compact driver-motor integrated design saves installation space and reduces wiring complexity.
RS485 Communication: Standard Modbus RTU protocol, compatible with PLC, HMI, and industrial PC with only two communication lines.
Multi-Axis Networking: Built-in motion control commands support up to 32 axes networking on a single motion platform.
Advanced Micro-Subdivision: 1-256 subdivisions with built-in micro-subdivision technology ensures smooth operation even at low subdivision settings.
Wide Voltage Range: DC 15-50V input flexibility for various industrial power supply environments.

Suitable Motor Specifications

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.

Standard Compatible Models

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

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

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

IRO23 RS485 Stepper Motor Driver Dimensions

Application Scenarios

Industrial Automation: Pick-and-place machines, labeling equipment, assembly lines, and packaging machinery requiring precise motion control.
CNC Machinery: Small CNC routers, engraving machines, and 3D printers needing multi-axis coordinated control.
Medical Devices: Medical equipment requiring low-noise, high-precision stepping motion such as syringe pumps and diagnostic instruments.
Laboratory Equipment: Reliable positioning control for test benches, sampling systems, and automated analysis instruments.

Pin Definition & Interface

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

Operating Environment

Parameter	Specification
Cooling Mode	Natural cooling or forced air cooling
Service Environment	Keep away from heating equipment, dust, oil mist, high humidity & strong vibration. No flammable gas or conductive dust.
Temperature	-10℃ ~ 50℃
Humidity	40 ~ 90% RH
Vibration	5.9 m/s² MAX
Storage Temperature	-20℃ ~ 60℃
Use Elevation	Below 1000 m
Weight	0.7 kg

Installation Notes

Note: The pulse, direction, and enable interface signal levels can only accept 5V TTL level. If 24V is needed, a current limiting resistor of 2kΩ/1W should be connected in series before the signal input port, or inform us at the time of ordering to order products which can only accept 24V TTL signal level.