Cooling Fan - Kruger Ecowatt Drive K120 Series Operation Manual

Ecowatt ® Drive K120 series
Subject
Ventilation duct

6.1.2 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 Kruger.
 Read the safety precautions carefully and follow the instructions to
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. Pry the fan mounting plate up from the cabinet with a screwdriver, and lift the fan
mounting plate up. Loosen the fan cable from the cable clamp.
3. Disconnect the fan cable, and remove the fan mounting plate.
4. Install the mounting plate in the VFD in the reverse steps. Ensure that the air
direction of the fan is consistent with that of the VFD, as shown in the following
figure.
Air direction
Figure 6-1 Fan maintenance for 1PH 220V, 2.2kW and lower models
Check whether there are
foreign matters blocking or
attached to the cooling fan,
air inlets, or air outlets.
perform operations. Otherwise, physical injuries or damage to the
device may be caused.
Item
Rotation direction
-116-
Method
Visual No exception
inspection occurs.
Air direction
Fault tracking
Criterion