8-22
8-5 Periodic Maintenance
8
Troubleshooting
Servo Drive Service Life
• Details on the service life of the Servo Drive are provided below.
Aluminum electrolytic capacitors: 28,000 hours
(at an ambient Servo Drive operating temperature of 55°C, the rated operation output (rated
torque), installed as described in this manual.)
Axial fan: 10,000 to 30,000 hours
Inrush current prevention relay: Approx. 20,000 operations (The service life depends on the
operating conditions.)
• When using the Servo Drive in continuous operation, use fans or air conditioners to maintain an
ambient operating temperature below 40°C.
• We recommend that ambient operating temperature and the power ON time be reduced as much
as possible to lengthen the service life of the Servo Drive.
• The life of aluminum electrolytic capacitors is greatly affected by the ambient operating
temperature. Generally speaking, an increase of 10°C in the ambient operating temperature will
reduce capacitor life by 50%.
• The aluminum electrolytic capacitors deteriorate even when the Servo Drive is stored with no
power supplied. If the Servo Drive is not used for a long time, we recommend a periodic inspection
and part replacement schedule of five years.
• If the Servomotor or Servo Drive is not to be used for a long time, or if they are to be used under
conditions worse than those described above, a periodic inspection schedule of five years is
recommended.
• Upon request, OMRON will examine the Servo Drive and Servomotor and determine if a
replacement is required.
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