Operation Safety - Epson GX Series Manual

Industrial Robot: SCARA Robots GX series Manual

2.1.3 Operation Safety

The following items are safety precautions for operating personnel:
WARNING
Be sure to read the Safety Manual before use. Operating the robot system without understanding the safety
information can be extremely dangerous and may result in serious injury or severe equipment damage.
Before operating the robot system, make sure that no one is inside the safety barriers. The robot system can
be operated in the teaching operation mode even when someone is inside the safety barriers. Even though
the motion of the Manipulator is always restricted (low speed and low power) to ensure operator safety, an
unexpected movement by the Manipulator can be extremely dangerous and may cause serious safety
problems.
If the Manipulator makes any abnormal movements during operation of the robot system, do not hesitate to
immediately press the emergency stop switch.
WARNING
To perform the power supply lockout, remove the power plug. Be sure to connect the AC power cable to a
power outlet. Do not connect it directly to a factory power source.
Before performing any replacement work, inform others in the area that you are working, and then turn off the
Controller and related equipment, and unplug the power cable from the power source. Performing any work
procedure with the power turned on is extremely dangerous and may result in electric shock and/or
malfunction of the robot system.
Do not connect or disconnect the connector of the M/C cable while the Controller is turned on. There is a risk
the Manipulator may malfunction, which is extremely hazardous. Also, performing any work procedure with
the power turned on may result in electric shock and/or malfunction of the robot system.
CAUTION
As a general rule, the robot system should be operated by only one person. If it is necessary to operate with
more than one person, ensure that all personnel communicate with each other and take all necessary safety
precautions.
Joints #1, #2, and #4:
If the Manipulator is operated repeatedly with an operating angle of 5° or less, the bearings used in the joints
are likely to cause oil film shortage. Repeated operation may cause premature damage. To prevent premature
damage, operate the Manipulator to move each joint to an angle of 50° or more about once per hour.
Joint #3:
If the up-and-down motion of the hand is 10 mm or less, move the hand about half or more of its maximum
stroke about once per hour.
When the robot is operating at low speed (Speed: 5 to 20%), vibration (resonance) may occur continuously
during operation depending on the combination of the arm orientation and hand load. Vibration occurs due to
the natural vibration frequency of the arm and can be reduced by taking the following measures:
Changing the robot speed
Changing the teach points
Changing the hand load
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