INVT Goodrive350-19 Series User Manual

Goodrive350-19 series VFD Maintenance
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Rotating direction
Air direction
Air
direction
Figure 9.1 Fan maintenance for VFDs of 7.5 kW or higher
6. Power on the VFD.
9.4 Capacitor
9.4.1 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
Operation principle
Less than 1 year
No charging operation is required.
1 to 2 years
The VFD needs to be powered on for 1 hour before the first running
command.
2 to 3 years
Use a voltage controlled power supply to charge the VFD:
Charge the VFD at 25% of the rated voltage for 30 minutes, and then
charge it at 50% of the rated voltage for 30 minutes, at 75% for another
30 minutes, and finally charge it at 100% of the rated voltage for 30
minutes.
More than 3 years
Use a voltage controlled power supply to charge the VFD:
Charge the VFD at 25% of the rated voltage for 2 hours, and then charge
it at 50% of the rated voltage for 2 hours, at 75% for another 2 hours, and
finally charge it at 100% of the rated voltage for 2 hours.
The method for using a voltage controlled power supply to charge the VFD is described as follows:

INVT Goodrive350-19 Series Specifications

General

Brand	INVT
Model	Goodrive350-19 Series
Category	DC Drives
Language	English