Routine Maintenance
‑176‑
Component Name
Service Life
[Note]
Fan
≥ 5 years
Electrolytic capacitor ≥ 5 years
The standard lifetime indicates the lifetime when the components are used in the
following conditions. You can determine when to replace these components according to
the actual operating time.
● Ambient temperature: 40°C
● Load rate: 80%
● Operating rate: 24 hours per day
5.3.2 Replacing the Cooling Fan
1. Possible damage causes: bearing wear and blade aging
2. Judging criteria: blade crack, abnormal vibration noise upon startup, and blade
operation exception
3. Removal and installation:
● To remove the cooling fan, press the snap‑fit joint on the protective cover and
pull the cover out.
● After replacement, ensure that the air flows upwards.
Removing the Fan (MD580‑4T2R1B to MD580‑4T377)
① Disconnect the power
cable plug of the fan from
the socket (top view).
② Remove the four fixing
screws from the fan cover
using a screwdriver.
③ Remove the fan and fan
cover from the AC drive.
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