9
INSPECTION AND MAINTENANCE
9-2
9-1) Inspection
The servo amplifier (RYB type) consists of electronic parts and requires no routine inspection.
The servomotor is of a synchronous type (brushless) and has no part that requires routine maintenance.
Though both the servo amplifier and servomotor are maintenance-free, perform periodic inspection to
avoid possible accidents and keep reliability of the equipment.
n Prior to inspection, turn off power and wait for at least five minutes. Otherwise, there is a
risk of electric shock.
n
Do not touch the servo amplifier when the commercial power is supplied. If attempted,
there is a risk of electric shock.
Inspection items are as follows.
Inspection item
Device Description
Servomotor
Misalignment of mechanical coupling
Direct exposure to water, steam or oil
Abnormal vibration
Servo amplifier
Loose screws of terminal block and fastening
parts
Excessive accumulation of dust
Foreign odor, damage due to heat, breakage
or external deformation Cable-wire
discontinuation
Before checking electrical wirings, turn off the
power and wait for 5 minutes and then check that
the [CHARGE] LED is off on the keypad panel.
n Do not perform megger test on the PC-board or terminal block of servo amplifier. If
attempted, the servo amplifier and the encoder housed in the servomotor may be broken.
DANGER
CAUTION
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