INVT GD350-004G/5R5P-45-AS, Руководство по эксплуатации

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Goodrive350 IP55 High-ingress Protection Series VFD Maintenance and hardware fault diagnosis
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Figure 8-1 Fan maintenance for VFDs of 7R5G/011P or higher
Air direction
Air direction
Rotating 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.
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:
The selection of a voltage controlled power supply depends on the power supply of the VFD.
For VFDs with an incoming voltage of 1PH/3PH 230 V AC, you can use a 230 V AC/2 A
voltage regulator. Both 1PH and 3PH VFDs can be charged with a 1PH voltage controlled
power supply (connect L+ to R, and N to S or T). All the DC bus capacitors share one rectifier,
and therefore they are all charged.
For VFDs of a high voltage class, ensure that the voltage requirement (for example, 380 V) is
met during charging. Capacitor changing requires little current, and therefore you can use a
small-capacity power supply (2 A is sufficient).