Dobot MG400 Robotic Arm Safety Instructions

Product Information

Model: DT-MG400-4R075-01

Item No.: 2899514

Brand: DOBOT

1. Intended Use

The Dobot MG400 is a collaborative robot designed for general industrial use, such as processing or delivering products or parts via end tools. It may also be used in educational settings.

The robot is equipped with special safety mechanisms, including collision detection, designed for human-robot collaboration. These are intended for non-hazardous applications after a thorough risk assessment, ensuring that tools, materials, environments, and other equipment do not pose significant risks. Any use deviating from the intended purpose is considered misuse, including but not limited to:

• Use in potentially explosive environments.
• Use in life-critical applications.
• Use before performing a risk assessment.
• Use exceeding specified capabilities.

In commercial settings, accident prevention regulations for electrical systems and operating materials must be observed. Use in schools and training centers requires supervision by trained personnel.

The product is intended for indoor use only. Avoid contact with moisture.

Improper use can lead to short circuits, fire, electric shock, or other hazards. The product complies with statutory national and European requirements. Do not modify or rebuild the product for safety and approval reasons.

Keep safety instructions and accompanying manuals safe and pass them on with the product.

2. Liability

Validity and Responsibility

This document does not cover the design, installation, or operation of a complete robot system or all peripheral equipment affecting its safety. The entire system must comply with the safety requirements of the country where the robot is installed.

Dobot system integrators are responsible for ensuring compliance with applicable safety laws and regulations and for eliminating significant hazards in the robot application. This includes:

• Performing a risk assessment for the complete robot system.
• Adding safety machines and mechanisms based on the risk assessment.
• Configuring appropriate safety settings in the software.
• Ensuring users do not modify safety measures.
• Validating correct system design and installation.
• Specifying operating instructions.
• Marking the robot with relevant signs and integrator contact information.
• Archiving relevant technical files.

Limitation of Liability

The safety information in this document is not a warranty from Dobot. The robot may cause injury or damage even if all safety instructions are followed.

3. Description of Symbols

The following symbols are used in this document:

• [Warning]: Warns of hazards that can lead to personal injury.
• [Electrical Hazard]: Warns of dangerous voltage that can lead to personal injury by electric shock.
• [Attention]: Indicates a potential risk that, if ignored, may result in product damage, data loss, or unpredictable results.
• [Warning]: Indicates a hazard with a medium or low risk level which, if not avoided, could result in minor or moderate injury.
• [Danger]: Indicates a hazard with a high risk level which, if not avoided, could result in death or serious injury.
• [Notice]: A situation that, if not avoided, can cause personal injury or equipment damage.
• [Note]: Provides additional information to emphasize or supplement important points.
• [Electrical Hazard]: Dangerous power consumption levels that, if not avoided, can cause personal injury or serious equipment damage.
• [Hot Surface]: Hot surfaces that might cause personal injury if touched.

4. Safety Instructions

Read this document and accompanying instructions carefully, paying special attention to safety information. Failure to follow these instructions may result in personal injury or property damage and will invalidate the warranty.

4.1 General

• The product is not a toy. Keep it away from children and pets.
• Do not leave packaging material carelessly; it can become a dangerous toy for children.
• Contact technical support for unanswered questions.
• Maintenance, modifications, and repairs must only be performed by qualified personnel.

4.2 Handling

• Handle the product with care. Jolts, impacts, or drops can damage it.

4.3 Operating Environment

• Do not subject the product to mechanical stress.
• Protect from extreme temperatures, strong jolts, flammable gases, steam, and solvents.
• Protect from high humidity and moisture.
• Protect from direct sunlight.
• Do not switch on the product immediately after moving it from a cold to a warm environment to prevent condensation damage. Allow it to reach room temperature first.

4.4 Operation

• Consult an expert if unsure about operation, safety, or connection.
• If safe operation is no longer possible, take the product out of service and protect it from accidental use. Do not attempt self-repair. Safe operation is compromised if the product is visibly damaged, not working properly, stored under poor conditions, or subjected to serious transport stress.

4.5 Power Adapter

• Do not modify or repair power supply components. Do not use damaged components. Risk of death by electric shock!
• Connect to an easily accessible wall socket.
• Use only the supplied power adapter.
• Ensure the mains voltage matches the adapter's specifications.
• Never connect or disconnect power adapters with wet hands.
• Always unplug by gripping the adapter, not the cable.
• Disconnect during storms for safety.
• Do not touch a damaged power adapter. Follow specific procedures for handling damaged adapters (switch off power, unplug).
• Ensure cables are not pinched, kinked, or damaged by sharp edges.
• Lay cables to prevent tripping hazards.

4.6 Li-ion Battery

• The battery is permanently built-in and cannot be replaced.
• Never damage the battery; damage to the casing can cause explosion or fire.
• Do not short-circuit battery contacts or throw the battery/product into fire.
• Charge the battery regularly, even when not in use.

4.7 General Safety Notes

• The robot system is electrical equipment. Non-professional technicians should not modify circuits.
• Comply with local laws and regulations.
• Use the robot within specified environmental limits.
• Ensure the robot operates under safe conditions, free from harmful objects.
• Frequent power cycling can degrade performance; limit to less than once per minute.
• Personnel responsible for installation, operation, and maintenance must receive thorough training.
• Unauthorized disassembly and repair by untrained personnel is prohibited. Contact Dobot technical support for failures.
• Perform daily inspections and regular maintenance to ensure safe operation.
• Dispose of scrapped equipment according to laws to protect the environment.
• Install safety fences to prevent unauthorized entry into the robot's working area.
• Ensure no one is inside the safety fence before operating and operate outside it.
• Avoid exposing the robot to permanent magnetic fields.
• Dobot is not responsible for damage or injury due to failure to follow instructions.
• Use appropriate lifting equipment for handling.
• Ensure no obstacles are within 2 meters during transport; keep personnel away from suspended robots.
• Ensure the robot is in the correct packaging posture with brakes engaged before packaging.
• Ensure the packing area is clear for emergency exit.
• Secure packaging during transport for stability.
• After unpacking, ensure the robot remains in its original posture with brakes engaged.
• During commissioning, ensure no personnel or equipment are in the danger zone.
• Wear appropriate safety protective equipment (helmets, safety shoes, eye protection, gloves).
• Do not enter the manipulator's working space without valid reason.
• Ensure the robot and tools are installed correctly and have sufficient space to move.
• Do not use a damaged robot.
• Be aware that impacts release significant kinetic energy.

4.8 Personal Safety

• Comply with local laws regarding maximum weight for manual lifting.
• Do not touch terminal blocks or disassemble with power ON.
• Confirm the equipment is properly grounded.
• Do not touch terminal blocks or remove components within 10 minutes after power off due to residual capacitance.
• Do not wear loose clothing or jewelry when working with robots. Tie back hair.
• If the robot appears stopped, it may be waiting for a start signal; treat it as in motion and do not approach.

4.9 Emergency

Emergency Stop Switch

Pressing the emergency stop switch immediately stops all robot motions and locks it. It is a complementary protective measure, not a primary safeguard against injury.

Emergency Recovery

The emergency stop switch locks after activation. Rotate it according to the mark to unlock.

[Warning]: Operate the robot to recover from an emergency only after the danger is completely removed.

Forced Joint Movement

In an emergency, if robot power is unavailable or unwanted, joints may need manual movement by pushing or pulling the robot arm forcefully.

[Warning]: Forcibly moving locked joints can cause damage. Use only in emergencies.

5. Transportation

Restore the robot to its packaging posture and transport it in its original packaging. The robot arm has four joints (J1, J2, J3, J4) with factory posture angles: J1=0°, J2=0°, J3=60°, J4=0°. Adjustments can be made via jogging or programming (refer to software guide).

Figure 2.1 Packaging posture: The robot arm is shown in its packaging position, indicating the correct orientation for storage and transport. The robot arm has four joints: J1, J2, J3, and J4, with corresponding factory posture angles of J1=0°, J2=0°, J3=60°, J4=0°. These angles can be adjusted through jogging or programming, as detailed in the software guide.

Ensure the robot arm is stable and secured during transport. Maintain ambient temperature between -20°C and +55°C, and humidity below 95% (non-condensing) during transport and storage.

When moving the robot from packaging to installation, support the arm until mounting bolts are tightened.

Store the original packaging in a dry place for future use.

[Warning]: Ensure operators do not strain their backs when lifting; use appropriate lifting equipment. Dobot is not liable for transport damage. Follow all installation instructions.

6. Installation Environment

To maintain performance and safety, install the robot in an environment meeting these conditions:

[Notice]:

• Install in a well-ventilated room.
• Protect from excessive stress and shock.
• Keep away from direct sunlight.
• Keep away from dust, oily smoke, salinity, metal powder, corrosive gases, and other contaminants.
• Do not use in a closed environment, which can cause high temperatures and shorten service life.
• Keep away from flammable materials.
• Keep away from cutting and grinding fluids.
• Keep away from sources of electromagnetic interference (large transformers, contactors, welding machines, etc.).

7. Maintenance and Repair

Maintenance and repair must comply with all safety instructions. The goal is to keep the system operational or restore it after a fault. This includes troubleshooting.

Repairs must be performed by authorized system integrators or Dobot technicians. Before returning robots or parts:

• Remove non-Dobot parts.
• Back up files; Dobot is not responsible for data loss.
• Restore the robot to its packaging posture.

Safety Instructions for Maintenance and Repair

• Replace faulty components with identical or equivalent Dobot-approved parts.
• Reactivate any deactivated safety measures immediately after repair.
• Record all repairs in the robot system's technical documentation.
• Remove main input cables to ensure the robot is unpowered. Prevent others from powering it on during repair.
• Observe ESD regulations during disassembly.
• Prevent water and dust ingress.

8. Declaration of Conformity (DOC)

Shenzhen Yuejiang Technology Co., Ltd. declares that the DOBOT MG400 (Product Model: DT-MG400-4R075-01) conforms to the MD Directive (2006/42/EC), EMC Directive (2014/30/EU), and RoHS Directive (2011/65/EU), adhering to applicable harmonized standards.

Authorized representative in the EU: DOBOT Europe GmbH.

Declaration date: August 14, 2023.

9. Disposal

Electrical and electronic equipment sold in the EU market must bear the WEEE symbol, indicating separate disposal at the end of its service life.

End-users must dispose of WEEE separately from municipal waste. Batteries, accumulators, and lamps must be removed non-destructively before handover to a collection point.

Distributors are legally obliged to provide free take-back of waste. Various return options are available (e.g., Conrad offices, collection points). End-users are responsible for deleting personal data from WEEE.

Note that return and recycling obligations may differ in countries outside Germany.

10. Technical Data

10.1 Power Supply

• Mains power supply: 100-240 V/AC, 50/60 Hz
• Input power supply: 48 V/DC, 150 W

10.2 Environment

• Operating temperature: 0 to +40 °C
• Storage temperature: -25 to +55 °C
• Operating altitude: ≤1000 m

10.3 Others

• Weight (approx.): 8 kg