4.5 N·m Closed-Loop Stepper Motor with Integrated Drive

The iESS86-60-45-17BC-RC/EC is an 86 mm integrated stepper motor rated at 4.5 N·m holding torque and 6.0 A phase current, powered from a 60 VDC bus. It combines the larger 86 mm frame with the lower voltage tier of the fieldbus closed-loop range.

Frame Size vs. Voltage

The 86 mm frame provides mechanical stiffness and a large mounting face for torque reaction. Running on 60 VDC keeps the power supply simpler than the 80 VDC models while still delivering 4.5 N·m holding torque.

Bus and Feedback

RS485+CAN and EtherCAT are both offered. The 17-bit absolute encoder feeds the closed loop and gives absolute rotor position at power-up, eliminating homing cycles on every restart.

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: closed-loop

Duty and Cooling

Continuous torque is limited by frame temperature. With 6.0 A available, duty cycling is the safest operating mode at the rated 4.5 N·m; provide a metal heat path from the flange to the machine base for longer duty periods.

Applications

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

Contact Lyenwsin for the duty-cycle calculation worksheet and mounting drawing.