RS485 CANopen 8A Stepper Drive

RS485 CANopen 8A Stepper Drive for Existing Bus Networks

The 2DM880-RC is an RS485 CANopen 8A Stepper Drive designed for step axes that must join an industrial bus without reworking the motor side of the machine. Available through Lyenwsin, the unit runs on a 24-70 VDC or 48-110 VDC supply and outputs 0-8.0 A, so it can push larger NEMA step motors while speaking two of the most widely deployed fieldbuses in factory automation.

Networking Without Vendor Lock-in

Supporting both RS485 and CANopen lets the drive join multi-vendor control architectures instead of forcing one fieldbus standard on the plant. This is a practical advantage on retrofit jobs where the machine controller already uses CANopen and the power wiring stays as-is.

Two protocols, one power stage

Because the communication and the current stage are independent, the same 8 A output serves either RS485 multi-drop links or CANopen nodes. Machine builders can standardize on one drive part number across lines that still use different bus masters, simplifying spares and documentation.

Key Specifications

• Supply voltage: 24-70 VDC / 48-110 VDC
• Output current: 0-8.0 A
• Fieldbus: RS485 + CANopen
• Digital inputs: 5
• Digital outputs: 2
• Microstepping: customizable
• Protection: phase loss, overcurrent, overvoltage, disconnection

Where It Is Installed

Typical installations are step axes already on a bus or being converted from pulse/relay control:

• Factory automation: retrofitting legacy step motors onto a networked controller without replacing the motors.
• Packaging and printing: long lines where CANopen node addressing simplifies commissioning.
• Compact CNC equipment: auxiliary axes on a low-voltage DC cabinet.
• Robotics and automated handling: conveyors, tool changers, and peripheral axes with limit and probe I/O.

Selection and Commissioning Advice

Choose the voltage rail to fit the motor

24-70 VDC suits moderate-speed NEMA 23 axes; 48-110 VDC extends high-speed torque for NEMA 34 class motors. Verify the motor’s voltage and current ratings before setting the output.

I/O mapping and on-site configuration

Five digital inputs handle home, limit, and probe signals; two outputs drive brake, alarm, and in-position. Slave ID, baud rate, and direction are set from the keypad and digital display, and RJ45 connectors keep the wiring neat. Lyenwsin provides datasheets and application guidance so your team can commission the axis without a factory visit.