INVT IPE300 Series User Manual

IPE300 series engineering VFD Maintenance
-270-
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).
The method for using a resistor (incandescent lamp) to charge the drive is described as follows:
If you directly connect the drive device to a power supply to charge the DC bus capacitor, it needs to
be charged for a minimum of 60 minutes. The charging operation must be performed at a normal
indoor temperature without load, and you must connect a resistor in series mode in the 3PH circuit of
the power supply.
For a 380 V drive device, use a resistor of 1 kΩ/100W. If the voltage of the power supply is no higher
than 380V, you can also use an incandescent lamp of 100W. If an incandescent lamp is used, it may
go off or the light may become very weak.
Power supply
380 V
VFD
R
S
T
U
V
W
Resistor
1 KΩ/100 W
Resistor
1 KΩ/100 W
Resistor
1 KΩ/100 W
Figure 8-2 380V driving-device charging circuit exmaple

INVT IPE300 Series Specifications

General

Brand	INVT
Model	IPE300 Series
Category	DC Drives
Language	English