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6 Safety
(6) The items described in these specifications are conditions for carrying out the periodic maintenance and
inspections described in the instruction manual.
(7) When using the robot arm on a mobile axis or elevating table, the machine cables enclosed as standard
configuration may break due to the fixed installation specifications. In this case, use a flexed type cable
which is one of the optional replaceable machine cables.
(8) If this robot interferes with the workpiece or peripheral devices during operation, the position may devi-
ate, etc. Take care to prevent interference with the workpiece or peripheral devices during operation.
(9) The hanging installation jig can be borrowed from the maker. Order to dealer when need.
(10) Do not attach a tape or a label to the robot arm and the controller. If a tape or a label with strong adhe-
sive power, such as a packaging tape, is attached to the coated surfaces of the robot arm and controller,
the coated surface may be damaged when such tape or label is peeled off.
(11) If the robot is operated with a heavy load and at a high speed, the surface of the robot arm gets very
hot. It would not result in burns, however, it may cause secondary accidents if touched carelessly.
(12) Do not shut down the input power supply to stop the robot. If the power supply is frequently shut down
during a heavy load or high-speed operation, the speed reducer may be damaged, backlash may occur,
and the program data may be destroyed.
(13) If the robot collides with the mechanical stopper during automatic operation due to incorrect origin
settings or other reasons, parts of the mechanical stopper or the reduction gear or other mechanical
parts may need to be replaced. For parts replacement, contact Mitsubishi Electric or your local sales rep-
resentative. If the robot is continued to be used with damaged mechanical parts or reduction gear, the
degree of their damage may increase.
(14) During the robot's automatic operation, a break is applied to the robot arm when the input power supply
is shut down by a power failure, for instance. When a break is applied, the arm may deviate from the
operation path predetermined by automatic operation and, as a result, it may interfere with the mechani-
cal stopper depending on the operation at shutdown. In such a case, take an appropriate measure in
advance to prevent any dangerous situation from occurring due to the interference between the arm and
peripheral devices.
Example) Installing a UPS (uninterruptible power supply unit) to the primary power source in order to
reduce interference.
(15) Do not conduct an insulated voltage test. If conducted by mistake, it may result in a breakdown.
(16) Fretting may occur on the axis which moving angle or moving distance move minutely, or not moves.
Fretting is that the required oil film becomes hard to be formed if the moving angle is small, and wear
occurs. The axis which not moved is moving slightly by vibration etc. To make no fretting recommends to
move these axes about once every day the 30 degree or more, or the 20mm or more.
(17) The United Nations' Recommendations on the Transport of Dangerous Goods must be observed for
transborder transportation of lithium batteries by air, sea, and land. The lithium batteries (ER6) used in
Mitsubishi industrial robots contain lithium and fall under the definition.
When the lithium batteries are shipped for storage, etc., they will be classified as Class 9: Miscellaneous
dangerous substances and articles. Please contact your transportation company and must provide
appropriate transport safety measures as the customer's consignor.
(18) If the air supply temperature (primary piping) used for the tool etc. is lower than ambient air tempera-
ture, the dew condensation may occur on the coupling or the hose surface.
(19) When fumigants that contain halogen materials such as fluorine, chlorine, bromine, and iodine are used
for disinfecting and protecting wooden packaging from insects, they cause malfunction when entering
our products. Please take necessary precautions to ensure that remaining materials from fumigant do
not enter our products, or treat packaging with methods other than fumigation (heat method). Addition-
ally, disinfect and protect wood from insects before packing products.
6-106 Precautions for handling
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