Electrolytic Capacitor Replacement; Power Cable - IMO HD2 IP Series Instruction Manual

HD2 IP55 High-ingress Protection Series Inverter
is met during charging. Capacitor changing requires little current, and therefore you can use a
small-capacity power supply (2 A is sufficient).
The method for using a resistor (incandescent lamp) to charge the drive is described as follows:
If you directly connect the drive device to a power supply to charge the DC bus capacitor, it
needs to be charged for a minimum of 60 minutes. The charging operation must be performed
at a normal indoor temperature without load, and you must connect a resistor in series mode in
the 3PH circuit of the power supply.
For a 380 V drive device, use a resistor of 1 kΩ/100W. If the voltage of the power supply is no
higher than 380 V, you can also use an incandescent lamp of 100W. If an incandescent lamp is
used, it may go off or the light may become very weak.
Figure 8-2 Charging circuit example of driving devices of 380 V

8.4.2 Electrolytic capacitor replacement


The electrolytic capacitor of an inverter must be replaced if it has been used for more than
35,000 hours. For details about the replacement, contact the local IMO office.

8.5 Power cable


1. Stop the inverter, disconnect the power supply, and wait for a time no shorter than the
waiting time designated on the inverter.
2. Check the connection of the power cables. Ensure that they are firmly connected.
3. Power on the inverter.
Power supply
380 V
Read 1 "Safety Precautions" carefully and follow the instructions to perform
operations. Otherwise, physical injuries or damage to the device may be
caused.
Read 1 "Safety Precautions" carefully and follow the instructions to perform
operations. Otherwise, physical injuries or damage to the device may be
caused.
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