Yaskawa AC Servomotor Linear (Sigma) Series - Manual (Page 12)

E-10
„ MAINTENANCE AND INSPECTION
Perform the following regular inspections to maintain the linear servomotor.
Linear servomotors generally require only daily inspection. The periods given in the follow-
ing table are given as guidelines only. Adjust the periods according to the application condi-
tions and environment.
If the motor fails, contact your Yaskawa representative.
* Measure across the linear servomotor FG and the phase-U, phase-V, or phase-W power lead.
• Do not attempt to disassemble or repair the linear servomotor.
Failure to observe this caution may result in electric shock or injury.
• Do not attempt to change wiring while the power is ON.
Failure to observe this caution may result in electric shock or injury.
CAUTION
Item Frequency Procedure Remarks
Vibration and noise Daily Inspect by feeling and listening
from a safe location. Confirm that the level of vibra-
tion or noise has not increased
from normal levels.
Appearance According to degree of
contamination Clean with a cloth or com-
pressed air. Do not use any solvents other
than alcohol.
Insulation resistance
measurement At least once a year Disconnect the SERVOPACK
and test insulation resistance at
500 V. *
Must exceed 10
ΜΩ .
Contact your YASKAWA rep-
resentative if the insulation
resistance is below 10 M
Ω . Do
not perform insulation resis-
tance or withstand voltage tests
on the sensor.
Gap between moving
coil and magnet track At least once a year Disconnect the SERVOPACK
and check the gap. Confirm that the gap has not
changed.
Overhaul At least once every
5 years Contact your Yaskawa repre-
sentative. The customer should not disas-
semble and clean the linear ser-
vomotor.