— 10-2 —
10.3. Periodic Check
10.3.1. Motor
！
Caution : Never disassemble the Motor and the resolver.
The table below shows the checklist of periodic maintenance. The checking interval shown in
the table is for reference only. It should be decided according to the actual use conditions and
environment.
You do not require replenish the grease of the bearing.
We cannot repair the Motors at the User’s site regardless of the level of failure. If any problem
was found by the periodic check, please consult with NSK sales or representative.
Table 10-2: Periodic Check of Motor
Item Checking interval How to check Remarks
Vibration/Noise
Daily
• Hearing
• No difference with
normal state.
Appearance
Depending on the degree
exposed to contamination
• Wipe off or blow off contaminants.
–
Insulation
Once a year
• Disconnect the Driver Unit, then check
the resistance between the Motor coil
and the ground earth with a 500v
megohmmeter.
• Resistance ≥ 2 MΩ
Refer to “Appendix 2.”
Play in bearing
Once a year
• Apply repetitive moment load less than
the limit, and feel play of the bearing.
• No play by the feel.
10.3.2. Driver Unit (Including Cables and Handy Terminal)
！
Caution : Do not disassemble the Driver Unit.
• High residual voltage may exist inside the Driver Unit for a while after
the power is turned off.
(In such a case, “CHARGE LED” is on.)
The daily check of the Driver Unit is not necessary because of the use of highly reliable
semiconductors. The checks shown in Table 10-3 require at least once a year.
Table 10-3
Item Interval Checking point Remarks
Retighten
screws
Once/year
Terminal block screws.
Connector fixing screws.
–
Cleaning
Once/year
Remove dust or contaminants
outside of Driver Unit.
–
Cable check
Once/year
Visually check any damages or
cracks.
Especially when you force to bend and
twist the cables, increase the checking
interval depending on the conditions.
To Next Page
Loading...
Need help?
General
