INVT Goodrive350 Series Operation Manual page 308

Goodrive350 IP55 High-ingress Protection Series VFD
You can view the running duration of the VFD through P07.14 (Accumulated running time).
The increase of the bearing noise indicates a fan fault. If the VFD is applied in a key position,
replace the fan once the fan starts to generate unusual noise. You can purchase spares of fans
from INVT.
Cooling fan replacement:
Read chapter 1 Safety precautions carefully and follow the instructions to perform
operations. Ignoring these safety precautions may lead to physical injury or death, or
device damage.
1. Stop the VFD, disconnect the AC power supply, and wait for a time no shorter than the
waiting time designated on the VFD.
2. Open the cable clamp to loose the fan cable (for the 004G/5R5P–030G/037P VFD models,
the middle casing needs to be removed).
3. Disconnect the fan cable.
4. Remove the fan with a screwdriver.
5. Install a new fan in the VFD in the reverse steps. Assemble the VFD. Ensure that the air
direction of the fan is consistent with that of the VFD, as shown in Figure 8-1.
6. Connect to the power supply.
Figure 8-1 Fan maintenance for the 7R5G/011P and higher VFD models
Air direction
8.4 Capacitor
8.4.1 Capacitor reforming
If the VFD has been left unused for a long time, you need to follow the instructions to reform
the DC bus capacitor before using it. The storage time is calculated from the date the VFD is
delivered.
Rotating direction
Air direction
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Maintenance