Omron OMNUC G User Manual page 183

4-1 Installation Conditions
If a Servo Drive is always operated at the ambient temperature of 55°C and with 100% of the rated
torque and rated rotation speed, its service life is expected to be approximately 28,000 hours
(excluding the axial-flow fan). A drop of 10°C in the ambient temperature will double the expected
service life.
Keeping Foreign Objects Out of Units
Place a cover over the Units or take other preventative measures to prevent foreign objects, such
as drill filings, from getting into the Units during installation. Be sure to remove the cover after
installation is complete. If the cover is left on during operation, Servo Drive's heat dissipation is
blocked, which may result in malfunction.
Take measures during installation and operation to prevent foreign objects such as metal particles,
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oil, machining oil, dust, or water from getting inside of Servo Drives.
4-2