Cooling Fan - INVT Goodrive350-19 Series Operation Manual

Goodrive350-19 series VFD
Subject
Ventilation duct
For more details about maintenance, contact the local INVT office, or visit our website www.invt.com,
and choose Service and Support > Online Service.

9.3 Cooling fan

The service life of the cooling fan of the VFD is more than 25,000 hours. The actual service life of the
cooling fan is related to the use of the VFD and the temperature in the ambient environment.
You can view the running duration of the VFD through P07.14 (Accumulated running time).
The increase of the bearing noise indicates a fan fault. If the VFD is applied in a key position, replace
the fan once the fan starts to generate unusual noise. You can purchase spare parts of fans from
INVT.
Cooling fan replacement

1. Stop the device, 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 loose the fan cable (for VFDs of 380 V, 1.5 to 30 kW, the middle casing
needs to be removed).
3. Remove 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 the following figure.
Item
Check whether there is
discoloration caused due to
overheat.
Check whether there are
foreign matters blocking or
attached to the cooling fan, air
inlets, or air outlets.
Read the safety precautions carefully and follow the instructions to perform
operations. Otherwise, physical injuries or damage to the device may be
caused.
Method
Visual inspection,
and determine the
service life based on
the maintenance
information.
Visual inspection
- 417 -
Maintenance
Criterion
No exception
occurs.
No exception
occurs.