8-22
8-5 Periodic Maintenance
Troubleshooting
8
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.