Goodrive18 series two-in-one VFD Troubleshooting
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The power of the VFD has been on for 1 hour before the first
running.
Use a voltage controlled power supply to charge the VFD:
• Apply 25% of the rated voltage for 30 minutes
• Apply 50% of the rated voltage for 30 minutes
• Apply 75% of the rated voltage for 30 minutes
• Apply 100% of the rated voltage for 30 minutes
Use a voltage controlled power supply to charge the VFD:
• Apply 25% of the rated voltage for 2 hours
• Apply 50% of the rated voltage for 2 hours
• Apply 75% of the rated voltage for 2 hours
• Apply 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 230V AC, you can use a 220VAC/2A voltage
regulator. Both 1PH and 3PH VFDs can be charged with a 1PH voltage controlled power
supply (connecting L+ to R, and N to S or T). All the DC bus capacitors share one rectifier, and
therefore they are all charged.
For a high voltage VFD, ensure that the voltage requirement (for example, 380V) is met during
charging. Capacitor charging requires little current, and therefore you can use a small-capacity
power supply (2A is sufficient).
6.1.3.2 Electrolytic capacitor replacement
Read the safety precautions carefully and follow the instructions to
perform operations. Otherwise, device damage or physical injuries or
even death may result.
The electrolytic capacitor inside the VFD must be replaced if the service time exceeds 35,000
hours. For details about the replacement, contact the local INVT office.
6.1.4 Power cable
Read the safety precautions carefully and follow the instructions to
perform operations. Otherwise, device damage or physical injuries or
even death may result.
Step 1 Stop the VFD, disconnect the power supply, and wait a time no shorter than the wait
time designated on the VFD.
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