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Goodrive300-19 series open loop vector inverter special for hoist Maintenance and hardware diagnosis
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9.4 Capacitors
9.4.1 Capacitors reforming
The DC bus capacitors must be reformed according to the operation instruction if the inverter has
been stored for a long time. The storing time is counted from the delivery date.
Time
Operational principle
Storing time less than 1
year
Operation without charging
Storing time 1-2 years
Connect with the power for 1 hour before first ON command
Storing time 2-3 years
Use voltage-adjusting power supply to charge the inverter
• 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
Storing time more than 3
years
Use voltage-adjusting power supply to charge the inverter
• 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 inverter:
The right selection of the voltage-adjusting power supply depends on the supply power of the inverter.
The single-phase 220V AC/2A voltage regulator is applied to single/three-phase 220V AC inverter.
The single/three-phase inverter can apply single-phase voltage-adjusting power supply for charging
(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 inverter 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 inverter charging through resistors (LEDs):
The charging time is at least 60 minutes if charge the DC bus capacitor directly through power supply.
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.
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.
Содержание Goodrive GD300-19-004G-4
Страница 1: ...Series Open Loop Vector Inverter Special for Hoist Goodrive300 19 GD300 19 5R5G 4...
Страница 33: ...Goodrive300 19 series open loop vector inverter special for hosit Installation guidelines 32...
Страница 129: ...Goodrive300 19 series open loop vector inverter special for hosit Basic operation instruction 128...
Страница 135: ...Goodrive300 19 series open loop vector inverter special for hosit Basic operation instruction 134...
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