Goodrive270 series VFD for fan and pump Maintenance
-292-
Power supply
380 V
VFD
R
S
T
U
V
W
Resistor
1 KΩ/100 W
Resistor
1 KΩ/100 W
Resistor
1 KΩ/100 W
Figure 8-4 380V driving-device charging circuit example
8.4.2 Electrolytic capacitor replacement
 Read chapter 1 Safety precautions carefully and follow the instructions to
perform operations. Ignoring these safety precautions may lead to physical
injury or death, or device damage.
The electrolytic capacitor of a VFD must be replaced if it has been used for more than 35,000 hours.
For details about the replacement, contact the local INVT office.
8.5 Power cable
 Read chapter 1 Safety precautions carefully and follow the instructions to
perform operations. Ignoring these safety precautions may lead to physical
injury or death, or device damage.
1. Stop the VFD, disconnect the power supply, and wait for a time no shorter than the waiting time
designated on the VFD.
2. Check the connection of the power cables. Ensure that they are firmly connected.
3. Connect to the power.
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