• ZeroErr eRob 80 I motor shown from the mounting face, with central bore and circular bolt-hole pattern.
  • ZeroErr eRob 80 I motor rear view showing the round top plate, central opening, and several electrical connectors.
  • Close rear-panel view of the ZeroErr eRob 80 I motor showing labeled connectors, a QR code, and central opening.
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ZeroErr eRob 80 I Robot Joint Actuator, CANopen/EtherCAT, 50โ€“120 Reduction Ratios

ZeroErr eRob 80 I Robot Joint Actuator, CANopen/EtherCAT, 50โ€“120 Reduction Ratios

ZeroErr

$1,771.00 USD
$1,771.00 USD
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Version
Reduction Ratio
Multi-turn and Torque
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Overview

The ZeroErr eRob 80 I is a robot joint actuator motor available in CANopen and EtherCAT versions, with selectable brake, reduction-ratio, and multi-turn/torque configurations.

Features

  • CANopen and EtherCAT version selections.
  • Brake-equipped and without-brake version selections; the listed brake model is a friction brake.
  • Selectable reduction ratios of 50, 80, 100, and 120.
  • Selectable multi-turn and torque configurations.
  • Optional-device communication types listed as EtherCAT, CANopen, and Modbus.
  • Output encoder resolution: 19 Bit.
  • For both EtherCAT and CANopen rotary-actuator versions, optional interfaces are RS485, Pulse/DIR, I/O, ยฑ10 V analog, and STO.

Specifications

Configuration Options

Selection Available values
Version eRob 80 I (CANopen With Brake); eRob 80 I (CANopen Without Brake); eRob 80 I (EtherCAT With Brake); eRob 80 I (EtherCAT Without Brake)
Reduction Ratio 50; 80; 100; 120
Multi-turn and Torque Without Multi-turn and Without Torque; Without Multi-turn and With Torque; With Multi-turn and Without Torque; With Multi-turn and With Torque

Strain Wave Gear-Ratio Performance

Parameter 17-50 17-80 17-100 17-120
Peak torque for start and stop (Nm) 44 56 70 70
Permissible max. value at average load torque (Nm) 34 35 51 51
Rated torque (Nm) 21 29 31 31
Permissible maximum momentary torque (Nm) 91 113 143 112
Max. output rotational speed (RPM) 60 37.5 30 25
Motor power (W) 126
Power input voltage (V) 48 V (ยฑ10%)
Strain wave gear output inertia (gยทmmยฒ) 143080
Strain wave gear output mass (kg) 0.227
Outer diameter ร— length 80 ร— 64.2 mm
Strain wave gear input inertia (gยทmmยฒ) 41815
Strain wave gear input mass (kg) 0.148
Weight (kg) 1.03
Common parameters ID: 18 mm; IP grating: IP54*; Brake model: friction brake
Optional device Communication type: EtherCAT / CANopen / Modbus; Output encoder resolution: 19 Bit; Repeatability/Accuracy: ยฑ7/ยฑ15 arc seconds or ยฑ10/ยฑ25 arc seconds.
EtherCAT version rotary actuator Optional interface: RS485, Pulse/DIR, I/O, ยฑ10 V Analog and STO.
CANopen version rotary actuator Optional interface: RS485, Pulse/DIR, I/O, ยฑ10 V Analog and STO.

Downloads

Applications

  • Humanoid robots
  • Robotic arms
  • Exoskeletons
  • Quadruped robots
  • AGV vehicles
  • ARU robots

Visual Details

Product Video

Product Views

ZeroErr eRob 80 Type I robot joint actuator product view
eRob80 Type I is identified as a robot joint. The product graphic promotes rapid robot assembly.

Dimensions and Construction

eRob 80I V3 and V5 size comparison graphic
The eRob 80I V3 length is 92.3 mm. The eRob 80I V5 length is 84.2 mm.

Options and Model Comparison

eRob 80I V3 and V5 lifetime comparison graphic
The eRob 80I V5 lifetime can be increased by 8.3% compared with the eRob 80I V3 in the stated example. The lifetime comparison is based on the displayed Ln=Ln(Tr/Tav)^3 ยท (Nv/Nav) lifetime calculation formula, using a 10 kg collaborative robot axis 4 as the example.

Features and Design

Exploded robot joint component diagram
The eRob80 Type I exploded view identifies eight core components. The component set includes a motor-side absolute encoder.
Friction brake feature graphic
The brake-equipped versions use a friction-type brake holder intended to prevent wobble when stopped and shaking on start. The brake-equipped versions can achieve a full-load zero-speed start.

Interfaces and Connections

Motor controller communication and interface graphic
The product graphic lists EtherCAT communication. The product graphic lists CANopen communication.

Specifications and Performance

Absolute encoder specification graphic
The encoder section is labeled as a built-in dual absolute encoder with full closed-loop control. Repeatability is up to ยฑ7 arcseconds.

Application Examples

Robot and automation application graphic
Collaborative robots are identified as an application field. Medical robots are identified as an application field.

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