INVT Goodrive350-19 Series Operation Manual page 389

Goodrive350-19 Series VFD for Crane
1. Stop the VFD, disconnect the AC power supply, and wait for a time no shorter than the waiting
time designated on the VFD.
2. Open the cable clamp to loosen the fan cable (for the 380V 1.5–30 kW VFD models, the middle
casing needs to be removed).
3. Disconnect the fan cable.
4. Remove the fan with a screwdriver.
5. Install a new fan in the VFD in the reverse steps. Assemble the VFD. Ensure that the air direction
of the fan is consistent with that of the VFD, as shown in Figure 9-1.
direction
Figure 9-1 Fan maintenance for the 1.5kW and higher VFD models
6. Connect to the power.
9.4 Capacitor
9.4.1 Capacitor reforming
If the VFD has been left unused for a long time, you need to follow the instructions to reform the DC
bus capacitor before using it. The storage time is calculated from the date the VFD is delivered.
Storage time
Less than 1 year
1 to 2 years
2 to 3 years
Air
No charging operation is required.
The VFD needs to be powered on for 1 hour before the first running
command.
Use a voltage controlled power supply to charge the VFD:
Charge the VFD at 25% of the rated voltage for 30 minutes
and then charge it at 50% of the rated voltage for 30 minutes
at 75% for another 30 minutes
and finally charge it at 100% of the rated voltage for 30 minutes.
Rotating direction
Operation principle
-377-
Maintenance
Air direction