8-19
8-5 Periodic Maintenance
8
Troubleshooting
Servo Drive Service Life
The service life of the Servo Drive is provided below.
Consult with your OMRON representative to determine whether or not components need to be 
replaced.
 Aluminum electrolytic capacitors: 50,000 hours, at an ambient Servo Drive operating temperature 
of 40°C, 80% of the rated operation output (rated torque), installed as described in this manual.
 Axial fan: 30,000 hours, at an ambient Servo Drive operating temperature of 40°C and an ambient 
humidity of 65% RH.
 When using the Servo Drive in continuous operation, use a fan or air conditioner to maintain an 
ambient operating temperature of 40°C or lower.
 We recommend that the ambient operating temperature be lowered and the power ON time be 
reduced as much as possible to lengthen the service life of the Servo Drive.
 The service life of aluminum electrolytic capacitors is greatly affected by the ambient operating 
temperature. Generally, an increase of 10°C in the ambient operating temperature will reduce the 
capacitor life by 50%.
 Aluminum electrolytic capacitors deteriorate even if 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 in five years.
 If the Servomotor or Servo Drive is not used for a long time, or if they are used under conditions 
worse than those described above, a periodic inspection of five years is recommended.