Routine Maintenance and Inspection
‑151‑
8.3 Replacing Quick-Wear Parts
8.3.1 Service Life of Quick-Wear Parts
Quick‑wear parts of the AC drive include the cooling fan and electrolytic capacitor.
Their service life is related to the operating environment and maintenance status.
Generally, the service life is as follows:
Component
Service Life
[Note]
Fan
≥ 5 years
Electrolytic capacitor ≥ 5 years
Note:
The standard service life of a device is the expected lifetime when the device is used in the
following conditions. You can determine when to replace your devices based on the
actual operating time.
Ambient temperature: 40°C
Load rate: 80%
Operating rate: 24 hours per day
8.3.2 Replacing the Cooling Fan
Description of the cooling fan
● Possible damage causes: bearing worn‑out and blade ageing.
● Signs of fan damage: cracks on the blade, unusual vibration noise upon start, and
abnormal operation of fan blades.
● Replacement: Press the fan plastic cover hook and pull the fan outward to replace
the fan. After replacement, check that the air flows upwards.
Table 8–1 Number of cooling fans needed
Model
Quantity
T1 (0.4 kW to 1.1 kW)
/
T1 (1.5 kW to 3.0 kW)
T2
T3 (7.5 kW)
T5 to T7
1
T3 (11 kW)
T4
T8 to T10
2
T11 to T12 3
To Next Page
Loading...
