INVT Goodrive300 Series User Manual

Goodrive300 Series VFD Maintenance and hardware fault diagnostics
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5. Keep the wind direction of the fan consistent with that of the VFD, as shown below:
6. Restore power.
9.4 Capacitors
9.4.1 Capacitors reforming
The DC bus capacitors must be reformed according to the operation instruction if the VFD has been
stored for a long time. The storing time is calculated from the delivery date.
Time
Operational principle
Less than 1 year
Operation without charging
1-2 years
Connect with the power for 1 hour before first ON command
2-3 years
Use power surge to charge for the VFD
• charging 25% rated voltage for 30 minutes
• charging 50% rated voltage for 30 minutes
• charging 75% rated voltage for 30 minutes
• charging 100% rated voltage for 30 minutes
More than 3 years
Use power surge to charge for the VFD
• charging 25% rated voltage for 2 hours
• charging 50% rated voltage for 2 hours
• charging 75% rated voltage for 2 hours
• charging 100% rated voltage for 2 hours
Use voltage-adjusting power supply to charge the VFD:
The right selection of the voltage-adjusting power supply depends on the supply power of the VFD.
Single phase 220V AC/2A power surge is applied to the VFD of single/three-phase 220VAC. The VFD
of single/three-phase 220V AC can apply single phase 220V AC/2A power surge (L+ to R, N to S or
T). All DC bus capacitors can charge at the same time because there is one rectifier.
High-voltage VFD needs enough voltage (for example, 380V) during charging. The small capacitor
power (2A is enough) can be used because the capacitor nearly does not need current when
charging.
The operation method of VFD charging through resistors (LEDs):
The charging time is at least 60 minutes if charge the DC bus capacitor directly through supply power.
This operation is available on normal temperature and no-load condition and the resistor should be
serially connected in the 3-phase circuits of the power supply:
a) 380V drive device: 1k/100W resistor. LED of 100W can be used when the power voltage is no
more than 380V. But if used, the light may be off or weak during charging.
b) 500V drive device: 1k/140W resistor
c) 660V drive device: 1k/160W resistor

INVT Goodrive300 Series Specifications

General

Brand	INVT
Model	Goodrive300 Series
Category	DC Drives
Language	English