INVT Goodrive390L Series User Manual page 136

Goodrive390L Series Lift-Dedicated VFD
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 380V drive device, use a resistor of 1 kΩ/100W. If the voltage of the power supply is
no higher than 380 V, 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
202403 (V1.0）
Figure 9-1 380V drive device charging circuit example
380 V
Resistor 1 KΩ/100 W
Resistor 1 KΩ/100 W
Resistor 1 KΩ/100 W
Inspection and maintenance
R U
S
VFD V
T W
128