FOTEK GD20-004G-2, Руководство по эксплуатации

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Goodrive20 Series VFD Fault tracking
-109-
Rotation direction
Air direction
Air direction
Figure 6-2 Fan installation of the VFD
s 3PH, 380V, ≥4kW
5. Power on the VFD.
6.1.3 Capacitor
6.1.3.1 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 instruction
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 220V AC, you can use a 220VAC/2A 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 charging requires little current, and therefore you can use a
small-capacity power supply (2A is sufficient).