Yaskawa AC Servo Drive Rotary Servomotor Safety Precautions - Manual (Page 30)

2 Maintenance and Inspection
E-28
2 Maintenance and Inspection
‹ Periodic Inspections
The following table gives the periodic inspection items for a Servomotor.
The inspection periods given in the table are guidelines. Determine the
optimum inspection periods based on the application conditions and envi-
ronment.
CAUTION
• Before you perform any maintenance or inspection work, turn OFF the
power supply, confirm that the CHARGE indicator on the front of the
SERVOPACK has gone out, and then use a tester to check the voltage
between the positive and negative terminals on the SERVOPACK. Start
inspection work only after you have confirmed that the main circuit
voltage has dropped.
If there is any main circuit voltage left, the risk of electric shock still exists.
Do not touch the Servomotor or any wiring.
• All inspection and maintenance work must be performed only by quali-
fied engineers.
There is a risk of electric shock or injury.
• Contact your Yaskawa representative for help with failures, repairs, or
part replacement.
Item Inspection Period
Basic Inspection and
Maintenance Procedure
Remarks
Check the
coupling
between the
Servomotor
and the
machine.
Before starting
operation
• Make sure that there are
no loose mounting
screws between the Ser-
vomotor and machine.
• Make sure that there is
no looseness in the cou-
pling between the Ser-
vomotor and machine.
• Make sure that there is
no misalignment.
–
Check for
vibration
and noise.
Daily
Inspect by touching and
by listening.
There should
be no more
vibration or
noise than nor-
mal.
Exterior
Check for dirt and
grime.
Wipe off the dirt and grime
with a cloth or pressur-
ized air.
–
Continued on next page.