Specifications

7
7.INSPECTION
7– 3
7
1) Smoothing capacitor:Affected by ripple currents, etc. and deteriorates in characteristic. The
life of the capacitor greatly depends on ambient temperature and
operating conditions. The capacitor will reach the end of its life in 10
years of continuous operation in normal air-conditioned environment.
2) Relays :Their contacts will wear due to switching currents and contact faults
occur. Depending on the capacity of the power supply, the service life
terminates when the number of power inputs reaches 100,000 times.
3)
Servo amplifier cooling fan :The cooling fan bearings reach the end of their life in 10,000 to 30,000
hours. Normally, therefore, the fan must be changed in a few years of
continuous operation as a guideline.
It must also be changed if unusual noise or vibration is found during
inspection.
4) Servo motor bearings :When the servo motor is run at rated speed under rated load, change
the bearings in 20,000 to 30,000 hours as a guideline. This differs on
the operating conditions. The bearings must also be changed if unusual
noise or vibration is found during inspection.
5) Servo motor oil seal, V ring :Must be changed in 5,000 hours of operation at rated speed as a
guideline. This differs on the operating conditions. These parts must
also be changed if oil leakage, etc. is found during inspection.