LSIS XDL-L7NH Series, User Manual, Page: 304 / 348

11. Maintenance and Inspection
11-44
(2)
Inspecting the Servo Drive
Inspection
Item
Inspection
Period
Inspection process
What to do if you find an
abnormality
Clean the main
body and
control board
At least once a
year
Check if there is any dust or oil Clean it with air pressure or cloth.
Check for loose
screws
At least once a
year
Check if terminal block or connector
tightening screws, etc. are not
loose.
Tighten the screws.
Check for
defective parts
on the main
body or the
control board
At least once a
year
Check for discoloration, damage, or
disconnection caused by heat.
Contact our company.
11.1.3
Replacing Parts
Mechanical friction and aging may deteriorate the following parts or even cause them to malfunction.
This makes it important to conduct regular maintenance checks and replace worn parts.
5. Smoothing condensers: Ripple currents and other factors can cause this part to wear. The
lifespan of this part depends on the operating temperature and environment. It normally lasts for 10
years if used continuously in a normal air-conditioned environment. Inspect the condenser at least
once each year because it can rapidly age over a short period of time once it starts to deteriorate
(inspect it more frequently as it approaches obsolescence).
※
Visual inspection criteria:
a. The condition of the case: Check for deformations on the sides and bottom.
b. The condition of the lid: Check for notable expansion, severe cracks, or broken parts.
c. The relief valve: Check for notable valve expansion and operation.
d. Also regularly check whether the exterior is cracked, discolored, or leaking and whether there
are any broken parts. The condenser is obsolete when its capacity degrades to less than 85% of
the rated capacity.
6. The relays: Check for bad connections and wear and tear on the contacts caused by switching
currents. A relay is obsolete when its accumulated number of switches reaches 100,000,
depending on the power capacity.
7. Motor bearings: Replace the bearings after 20,000 to 30,000 hours of operation at the rated speed
under the rated load. Replace the bearings if abnormal sounds or vibrations are detected during
inspection, depending on the operating conditions.
[The Standard Part Replacement Cycle]
Part Name
Standard Replacement
Cycle
Method
Smoothing condenser 7-8 years Replace (determine after inspection).
Relays - Determine after inspection
Fuses 10 years Replace
Aluminium electrolytic
condensers on PCB
5 years
Replace with new boards (determined after
inspection)
Cooling fans 4-5 years Replace
Motor bearings - Determine after inspection
Motor oil seal 5,000 hours Replace