Goodrive300-LIFT series inverter
Maintenance and hardware diagnosis
-112-
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 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
Line supply 400V
3×1K/100W Frequency inverter
L1
L2
L3
U
V
W
Figure 9-1 380V charging illustration of the driven device
9.4.2 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 inverter are above
35000. Please contact with the local offices or dial our national service hotline (400-700-9997) for
detailed operation.
9.5
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.
1. Stop the drive and disconnect it from the power line. Wait for at least the time designated on the
inverter.
2. Check the tightness of the power cable connections.
3. Restore power.