5699-E P-(i)
SAFETY PRECAUTIONS
SAFETY PRECAUTIONS
The machine is equipped with safety devices which serve to protect personnel and the machine itself from
hazards arising from unforeseen accidents. However, operators must not rely exclusively on these safety
devices: they must also become fully familiar with the safety guidelines presented below to ensure accident-
free operation.
This instruction manual and the warning signs attached to the machine cover only those hazards which
Okuma can predict. Be aware that they do not cover all possible hazards.
1. Installing the Machine
• When selecting the machine installation site, ensure that the following conditions are met.
If not, it may be difficult to perform safe operation or maintain the guaranteed accuracy.
a. The machine ambient temperature is within the range from 5 to 40°C.
b. The machine ambient humidity is within the range from 40 to 75% at 20(C and no conden-
sation is allowed.
c. Avoid installation near the factory door because the machine is subject to rapid tempera-
ture change by warm or cool air blowing against the machine.
d. Also avoid installation in a place which is subject to direct sunlight.
e. For the installation ground conditions, refer to Section 2 “Transportation and Installation
(Relocation).”
f. To maintain the guaranteed accuracy, you are advised to care and control the factory tem-
perature.
• Prepare the primary power supply that satisfies the following conditions:
a. Primary power supply: 200 V
b. Voltage fluctuation: ±10% or less
c. Power source frequency: 50/60 Hz
d. Do not connect the machine power cable to the same power board as noise generating
equipment, such as an electric welder and electric discharge machine. Doing this will
cause the NC to malfunction.
e. The law stipulates that the machine tools must be grounded (by Class D grounding work).
When you ask an electrical worker for grounding work, request the worker to perform Class
D grounding based on the electrical facility technical standards.If the machine is not
grounded, it is possible that insulation failure will cause a leak current to flow through the
human body, resulting in serious injury or accidents involving death.
f. The machine should be grounded independently of other machines. If the machine must be
grounded with other machines, do not connect the ground cable to the same ground termi-
nal as noise generating equipment, such as an electric welder or an electric discharge
machine.
Recommended temperature change for 24 hours: : Within ±2°C
Temperature difference between the measurement near
the floor and the measurement at a position 3 m high
from the floor
:Within ±1°C
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