1.1.  Introduction

1.1.  Introduction

 

The main purpose of this chapter is to describe the safety of personnel who use, repair, and operate the industrial robot. While this manual is written mainly for the handling of the controller, the performance of the explosion-proof function is an item certified, together with the manipulator, for the whole system. Therefore, you should carefully read and understand the instruction manual of the machine.

 

This manual describes safety precautions for robot manipulator and controller, in complies with the safety regulation of EU Machinery Directive 98/37/EC(2006/42/EC) and US OSHA. And the robot manipulator and controller is manufactured to comply with the safety standards EN ISO 10218-1:2011 and ANSI/NFPA 79:2021.

 

Every operator, who installs, replaces, adjusts, manipulates, maintains, and repairs, must read thoroughly and fully understand the manipulation and maintenance manual, in particular, the special attention must be paid to the WARNING symbol, the most important marking related to the safety.

 

Installation, replacement, adjustment, manipulation, maintenance, and repair of robot system must be performed by the personnel who was duly trained for these purposes, following the indicated operating procedure.

 

This company is planning and carrying out the relevant training such as maintenance, repair, and manipulation for the above operations, so robot users make sure that robot operators should get the relevant training. And make sure that the robot handling work should be carried out only by the operators who completed this training course.

 

Hyundai Robotics user of industrial robot has responsibility to observe the safety regulation related to robot adopted in corresponding countries and responsibility to design, install and operate safety equipment well in order to protect workers who work at robot system.

 

The dangerous zone of robot system, that is the working range in which the robot, tool, and peripheral equipment are operated, must be safeguarded to prevent workers or objects from entering the zone. If a person or object should nevertheless enter the dangerous zone, make sure that the robot system is immediately shut down by emergency stop system. The operators of robot system have a responsibility to take all necessary steps to make correct installation, examination and operation of the relevant safety devices.

 

The areas for which the robot can be applied and the environment in which it can be used are as follows.

 

 Applicable areas

 

It is applied to the industrial robot used by installing on the surface of wall or plane (axes addable). It is also appropriate for controlling operation in the dotted section or consecutive section.

 

Major application is

 

n Spot welding

n  Arc welding

n  Cutting

n Handling

n Assembly

n Application such as Sealing

n Palletizing

n Grinding

n LCD manufacturing process

 

For the other use than the above emergency application, make a contact with our company to consult on the robot use and possible applications.

 

 Disable environment

 

Our robot must not be used in a highly explosive environment and the areas contaminated by oil, flammable materials or chemical materials. (Prohibited to be installed and manipulated.)

 

l Hi5a-P10/P20

 

The areas for which the robot can be applied and the environment in which it can be used are as follows.

 

 Applicable areas

 

It is applied to the Painting robot used by installing on the surface of wall or plane (axes addable). It is also appropriate for controlling operation in the dotted section or consecutive section.

 

For the other use than the above emergency application, make a contact with our company to consult on the robot use and possible applications.

 

 Disable environment

 

Our robot must not be used in a highly explosive environment and the areas contaminated by oil, flammable materials or chemical materials.

It is recommended to use it in the environment of Zone I. (Prohibited to be installed and manipulated.)

 

EXPLOSION-PROOF SPECIFICATION

 

This robotic system is built in a complex explosion-proof structure that integrates the pressurized explosion-proof structure with the intrinsically safe explosion-proof structure.

 

The structure of the robot and the painting equipment realizes the explosion-proof function that uses pressure. The pressure inside the machine is retained higher than the air pressure of the painting booth, thereby preventing the inflow of gas from the outside as well as possible hazards that could occur to electric connections, for example, between the motor and the encoder inside the manipulator.

The robot should maintain a pressure higher than the atmospheric pressure to start normally. If this condition is not satisfied, the electrical connection will be cut off.

 

Purge any explosive gas before supplying power to the equipment in the booth. Perform air purging when the controller power is turned on so that explosive gas can be purged below the reference concentration. If stable pressure is maintained, the robot will be set to a state in which it can operate. If the internal air pressure does not reach the reference pressure, the controller immediately cuts off the power supply.

 

The robot cannot be started until the air purging operation is performed again to purge the gas surely even after the fault is cleared.

 

The pressure switch is always in operation to monitor the manipulator’s pressure. The energy supplied for the operation of the system is limited by the intrinsically safe explosion-proof structures, so the energy supply cannot exceed the explosion threshold within the paint booth.

 

This robotic system is certified for explosion-proofness by an international certification institute. To sustain its explosion-proof performance, adding or changing any system or parts that may affect the system is prohibited. Only approved products shall be used for maintenance. If these parts fail or need to be replaced, please contact Hyundai Robotics.

 

The pressurized explosion-proof structure prevents the motor and internal wirings inside the manipulator from exploding. However, such protection does not cover the separate harness that connects the manipulator and the controller. If the harness is exposed to a solvent, the cable can be damaged, and ground-fault circuiting or short-circuiting could take place, which could possibly lead to a fire. Make sure that the external harness is exposed to a large amount of solvent.

 

It is also recommended to regularly test the surface of the cable and the protective tube to prevent damage, and to replace the harness every three to five years.

 

Purge the explosive gas inside the booth before supplying power to the robotic system and equipment. Install and activate a pressure detection system inside the booth.

 

Explosion-proof robots are certified for explosion-proofness to ensure safe operation in gas or explosive atmospheres (integration of pressurized and intrinsically safe structures to realize the explosion-proof specification). Take extreme precautions to handle this system properly. Otherwise, serious accidents, such as explosions, could take place.