Capacitor; Capacitor Reforming - INVT Goodrive350 Series Operation Manual

Goodrive350 series high-performance multifunction VFD
Cooling fan replacement:

1. Stop the device, 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 380V 1.5–30 kW VFD models, the middle
casing needs to be removed).
3. Remove 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 the following figure.
Figure 8-1 Fan maintenance for 7.5 kW and higher VFD models
6. Power on the VFD.

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.
Storage time
Less than 1 year
1 to 2 years
2 to 3 years
Read the safety precautions carefully and follow the instructions to perform
operations. Otherwise, physical injuries or damage to the device may be
caused.
Air
direction
No charging operation is required.
The VFD needs to be powered on for 1 hour before the first running
command.
Use a voltage controlled power supply to charge the VFD:
Charge the VFD at 25% of the rated voltage for 30 minutes, and then
Maintenance and hardware fault diagnosis
Rotating direction
Operation principle
-303-
Air direction