Cooling Fan - INVT Goodrive 310-UL Series Operation Manual

GD310-UL series VFD
Checking

Cooling fan

Cooling
system
Ventilating
duct
Consult the local service representative for more details on the maintenance. Visit the official website.
9.3 Cooling fan
The VFD's cooling fan has a minimum life span of 25,000 operating hours. The actual life span
depends on the VFD usage and ambient temperature.
The operating hours can be found through P07.14.
Fan failure can be predicted by the increasing noise from the fan bearings. If the VFD is operated in a
critical part of a process, fan replacement is recommended once these symptoms appear. Spare fans
are also available.
Replacing the cooling fan

Read and follow the instructions in chapter Safety Precautions. Ignoring the
instructions would cause physical injury or death, or damage to the equipment.
1. Stop the VFD and disconnect it from the AC power source and wait for at least the time
designated on the VFD.
2. Loose the fan cable from the clip (remove the shell for the VFDs of 220V 0.75–15kW and 460V
G-type 1.5–30kW, P-type≥5.5–37kW).
Item
Ensure there is no weeping and
distortion to the capacitors.
Estimate whether there is
abnormal noise and vibration.
Estimate there is no losses
screw.
Ensure there is no
color-changing caused by
overheating.
Ensure whether there is stuff or
foreign objection in the cooling
fan, air vent.
Maintenance and hardware diagnostics
Method
Visual examination
or estimate the
usage time
according to the
maintenance
information
Hearing and Visual
examination or
rotate with hand
Tighten up
Visual examination
or estimate the
usage time
according to the
maintenance
information
Visual examination NA
-186-
Criterion
NA
Stable rotation
NA
NA