Cooling Fan - INVT Goodrive880 Series Hardware Manual

Goodrive880 Series Regenerative Rectifier Unit Hardware Manual
The method for using a voltage controlled power supply to charge the regenerative rectifier unit is described
as follows:
For regenerative rectifier units of a high voltage class, ensure that the voltage requirement (for example, 380
V) 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 regenerative rectifier unit 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 380V 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.
7.2.1.2 Electrolytic capacitor replacement
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operations. Ignoring these safety precautions may lead to physical injury or death, or
device damage.
The electrolytic capacitor of a regenerative rectifier unit must be replaced if it has been used for more than
35,000 hours. For details about the replacement, contact the local INVT office.

7.2.2 Cooling fan

1. Replacing the fan for A4
Step 1 Disconnect the DC power supply of the drive system and check to ensure there is no voltage in the
equipment.
202401 (V1.0)
Figure 7-1 380V driving-device charging circuit example
Resistor 1 KΩ/100 W
Power supply
Resistor 1 KΩ/100 W
380 V
Resistor 1 KΩ/100 W
1 Safety precautions
Fan power
cable
Fan cover
snap-fit
L1
L2 VFD
L3
carefully and follow the instructions to perform
Fan air
direction
Maintenance and inspection
(+)
(-)
60