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Universal Robots UR20

Universal Robots UR20
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UR20
Service Manual
Compatible robots: UR20
Control Box: e-Series Control box 5.5, OEM Control Box,
Original instructions (en)
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Universal Robots UR20 Specifications

General IconGeneral
Payload Capacity20 kg
Reach1750 mm
Weight64 kg
Repeatability± 0.05 mm
Degrees of Freedom6
Protection RatingIP54
Operating Temperature0°C to 50°C
Footprint245 mm diameter
Power Consumption500 W
ProgrammingURScript, Polyscope
MountingFloor, Ceiling, Wall

Summary

1. Introduction

1.1. About This Document

Explains the purpose of the Service Manual for UR users and integrators.

1.2. Company Details

Provides contact information for Universal Robots A/S.

1.3. Copyright and disclaimers

Outlines copyright, information changes, and liability disclaimers.

1.4. Safety Message Types

Defines various safety message types (WARNING, CAUTION, NOTICE, GROUND).

Safety Symbols and Indicators

Explains additional safety symbols and mandatory action indicators.

2. Handling ESD-Sensitive Parts

ESD Handling Notices

Provides notices on handling ESD-sensitive parts, including wristbands and bags.

ESD Handling Precautions

Details precautions for ESD-sensitive parts, including material and humidity.

3. Recommended Inspection Activities

3.1. Robot Arm

Introduces inspection activities for the robot arm.

3.1.1. Inspection Plan

Outlines the inspection plan for the robot arm, including frequency and type.

3.1.2. Visual Inspection: Robot arm

Details visual inspection steps for the robot arm, including torque values.

3.1.3. Functional Inspection

Describes functional inspection for the robot arm, checking screws and bolts.

3.1.4. Cleaning your robot

Provides instructions for everyday and additional cleaning of the robot arm.

3.2. Control Box and Teach Pendant

Introduces inspection activities for the Control Box and Teach Pendant.

3.2.1. Inspection Plan

Outlines the inspection plan for Control Box and Teach Pendant.

3.2.2. Functional and Safety Inspection

Details functional and safety inspections for the Control Box and Teach Pendant.

Freedrive and Backdrive Testing

Explains how to test the Freedrive and Backdrive functions of the robot arm.

Safety Settings

Verifies robot safety settings against the installation risk assessment.

3.2.3. Visual Inspection: Control Box

Guides visual inspection of the Control Box, checking terminals and dust.

3.2.4. Cleaning

Provides cleaning instructions for the Teach Pendant touch screen and Control Box filters.

4. Service and Replacement of Parts

4.1. Pre-Use Assessment

Lists tests and verifications to be conducted before first use or after modifications.

4.1.1. Recommended Tools

Lists recommended tools for robot arm and control box service.

4.2. Robot Arm

Diagram of Robot Arm Components

Illustrates and labels the main components and joints of the robot arm.

4.2.1. Connection Torque Values

Specifies torque values for clamp connections between robot arm joints.

Clamp Connection Torque Details

Details torque specifications for clamp sizes 2.5, 4, and 5.

4.2.2. Clamp Connection

Joint Sizes and Masses

Lists joint sizes and their corresponding masses for handling.

Clamp Connection: Disassembly

Provides a warning and instructions for disassembling a joint with a clamp connection.

Disassembly Steps

Details the step-by-step process for disassembling a robot arm joint clamp.

Disassembly Continued

Continues the steps for disassembling a robot arm joint, including connector unplugging.

Clamp Connection: Assembly

Provides notices and instructions for reassembling a robot arm joint clamp.

4.2.3. Tool Flange

Tool Flange Connection

Explains that the tool flange uses a clamp connection and refers to previous section.

4.2.4. Replacement of Trim Plates

Dismounting Trim Plates

Describes how to dismount trim plates on the UR20 robot arm.

Mounting Trim Plates

Explains the procedure for mounting trim plates on the UR20 robot arm.

4.2.5. Joint Verification

Joint Verification Procedure

Details the steps for verifying a replacement joint with the controller.

4.2.6. Dual Robot Calibration

Performing Dual Robot Calibration

Explains the need and requirements for Dual Robot Calibration.

4.2.7. Program Correction by Key Waypoints

Program Correction Explanation

Describes how program correction by key waypoints adjusts programs after joint replacements.

4.3. Control Box

4.3.1. Dismantling the Control Box

Provides warnings and initial steps for dismantling the control box.

Control Box Dismantling Steps

Continues the steps for dismantling the control box, including power supply removal.

4.3.2. Torque Values

Lists torque values for various components within the Control Box.

Control Box Torque Values Table

Details specific torque values for Control Box assembly and disassembly.

4.3.3. Replacing the 3 PE Teach Pendant

Describes how to replace a Teach Pendant with a 3PE Teach Pendant.

Teach Pendant Replacement Procedure

Details the steps for removing and replacing the Teach Pendant.

5. Software

5.1. Software Updates

Explains the importance of keeping robot software up to date for safety and performance.

Software Update Procedure

Provides a step-by-step guide for updating the robot’s software via USB.

5.2. Using Support File

Support File Backup

Explains how to create a support file for robot data backup.

5.3. Using Magic Files

Magic Files Backup

Describes how to use Magic Files for automatic data backup to a USB stick.

5.4. Backup of data

5.4.1. Hardware Requirements

Lists the necessary hardware for performing data backup.

5.4.2. Software Requirements

Details software requirements for accessing the robot's Linux partition.

5.4.3. Accessing Linux Partition from Windows

Guides on accessing the robot's SD card Linux partition from Windows.

5.4.4. Copying the data from SD card

Explains how to copy specific files and folders from the SD card.

6. Troubleshooting

6.1. Adding External Equipment for Troubleshooting Purpose

Discusses connecting external equipment like mouse, keyboard, and monitor for troubleshooting.

6.2. UR Log Viewer

Introduces the UR Log Viewer software for analyzing robot logs and support files.

6.3. LED indicators and Fuse on Safety Control Board

6.3.1. LED Indicators on Safety Control Board

Explains the meaning of power and communication LEDs on the Safety Control Board.

6.3.2. Fuse

Specifies the type and specifications of the fuse used in the control system.

6.4. Complete Rebooting Sequence

Rebooting Steps

Provides a step-by-step guide for completely rebooting the robot system.

6.5. Robot Stop

Protective Stop Handling

Explains how to handle protective stops and avoid ignoring them.

6.5.1. Ignoring Robot Stops

Consequences of Ignoring Stops

Warns about the risks and warranty voiding associated with ignoring protective stops.

8. Packing and Shipping of RobotSpare Parts

Pre-shipment Verification

Lists checks to perform before shipping robots or spare parts back to Universal Robots.

Shipping Notices and Warnings

Provides notices regarding third-party products, software updates, and cleaning.

Packing Down Robot and Control Box

Guides on how to pack down the robot and control box for shipping.

Transportation Recommendations

Offers recommendations for transporting the robot without original packaging.

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