INVT GD20-004G-2-EU, Руководство по эксплуатации

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Goodrive20-EU series VFD Fault tracking
105
6.1.2 Capacitors
Reforming the capacitors
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 counted form the producing date other than the
delivery data which has been marked in the serial number of the VFD.
Time Operational principle
Storing time less than 1 year Operation without charging
Storing time 1-2 years Connect to the power for 1 hour before first ON command
Storing time 2-3 years
Use power surge to charge for the VFD
• Apply 25% rated voltage for 30 minutes
• Apply 50% rated voltage for 30 minutes
• Apply 75% rated voltage for 30 minutes
• Apply 100% rated voltage for 30 minutes
Storing time more than 3 years
Use power surge to charge for the VFD
• Apply 25% rated voltage for 2 hours
• Apply 50% rated voltage for 2 hours
• Apply 75% rated voltage for 2 hours
• Apply 100% rated voltage for 2 hours
The method of using power surge to charge for the VFD:
The right selection of power surge depends on the supply power of the VFD. Single phase
230V AC/2A power surge applied to the VFD with single/three-phase 230V AC as its input
voltage. The VFD with single/three-phase 230V AC as its input voltage can apply Single phase
230V AC/2A power surge (L+ to R and N to S or T). All DC bus capacitors charge at the same
time because there is one rectifier.
High-voltage VFD needs enough voltage (for example, 400V) during charging. The small
capacitor power (2A is enough) can be used because the capacitor nearly does not need
current when charging.
Change electrolytic capacitors

Read and follow the instructions in chapter Safety Precautions . Ignoring
the instructions may cause physical injury or death, or damage to the
equipment.
Change electrolytic capacitors if the working hours of electrolytic capacitors in the VFD are
above 35000. Please contact the local INVT offices or dial our national service hotline
(400-700-9997) for detailed operation.
6.1.3 Power cable

Read and follow the instructions in chapter Safety Precautions . Ignoring
the instructions may cause physical injury or death, or damage to the
equipment.