60 VDC Integrated closed loop Stepper Motor – 4.5 N·m, 86 mm Frame

Compact Integration for Panel-Limited Machines

The iRSS86-60-45-17BC-RC/EC is a 60 VDC Integrated closed loop Stepper Motor in an 86 mm frame rated at 4.5 N·m holding torque. It runs from a 60 VDC supply at 6.0 A and includes RS485, CAN and EtherCAT fieldbus plus a 17-bit absolute encoder. With the drive mounted on the motor, the unit is installed and wired as one component, which suits machines where the control cabinet is already crowded. Only a fieldbus cable and a DC supply reach the motor; there is no separate driver stage to mount, making retrofits and machine builds faster and keeping the wiring schematic simple.

Fieldbus Control

RS485, CAN and EtherCAT are supported, allowing integration with both legacy controllers and modern EtherCAT masters. closed loop control is handled on-board, so the external controller only sends motion commands and receives status over the bus. This keeps the PLC program simple and offloads the stepping logic from the main controller.

Encoder Feedback and Positioning

The 17-bit absolute encoder gives fine position resolution and holds the axis position after power loss, avoiding re-homing sequences. The closed loop detects and corrects step loss, allowing the 4.5 N·m axis to run without a large open-loop torque reserve. This improves repeatability on indexing and shuttle applications that cycle all day.

Specifications

• Frame size: 86 mm
• Holding torque: 4.5 N·m
• Supply voltage: 60 VDC
• Rated current: 6.0 A
• Fieldbus: RS485 + CAN / EtherCAT
• Encoder: 17-bit absolute
• Control mode: closed loop
• Design: compact, low vibration

Applications

Suitable for factory automation, packaging machinery, robotics and CNC machine tools. The 4.5 N·m class covers indexing axes, small rotary tables and shuttle drives without the cost of a full servo axis. AGV and material handling systems also use this torque range for positioning mechanisms.

System Design Notes

Confirm the 60 VDC supply is clean and within regulation; ripple on the DC bus degrades torque and encoder performance. Verify the 86 mm flange fits the machine and select the fieldbus variant to match the controller. Lyenwsin provides documentation and engineering support to help you integrate this 60 VDC integrated stepper into your system.