17-Bit closed loop Stepper Motor with RS485+CAN Fieldbus

The iESSL60-36-20-17BC-RC is a 17-Bit closed loop Stepper Motor with 2.0 N·m holding torque and 5.0 A phase current, integrated with its drive and controlled over RS485+CAN. The model name highlights the encoder, which is the defining feature of this 60 mm closed loop unit. Because the encoder is absolute, the axis knows its rotor position at power-up and can resume work without re-referencing.

Why the Encoder Matters

A 17-bit absolute encoder resolves the rotor position to a fine granularity and knows that position immediately at power-up. On a machine that is stopped mid-cycle, the axis can resume from its recorded position without a homing move, which shortens recovery time on production lines.

RS485+CAN Networking

Two serial interfaces on the same unit allow connection to legacy RS485 controllers or to CAN networks. This flexibility is useful when the machine control bus is still being defined, and it lets one part number serve either bus topology.

Specifications

• Frame size: 60 mm
• Holding torque: 2.0 N·m
• Supply voltage: 36 VDC
• Rated current: 5.0 A
• Fieldbus: RS485 + CAN
• Encoder: 17-bit absolute
• Control: closed loop

Operating Envelope

Use 2.0 N·m as the static reference and derate for continuous operation. The integrated construction keeps the drive close to the windings, so the frame is also the heatsink; keep it ventilated and bolted to a flat surface.

Applications

• Industrial automation
• Packaging machinery
• Robotics
• CNC machine tools

Selection Notes

Choose the RS485 or CAN interface according to the controller in place, and confirm node addressing before wiring. The absolute feedback makes this unit a strong choice for machines that stop mid-cycle and must resume without re-referencing. The RS485 and CAN interfaces also give the machine builder flexibility when the control network is still under development, so the same motor can move to a different bus later without a hardware change. Contact Lyenwsin for the register map and RS485 wiring specification.