Goodrive20-UL Series VFD
Fault tracking
-104-
Checking part
Checking item
Checking
method
Criterion
Ensure there is no
color-changing caused by
overheating.
Visual
examination or
estimate the
usage time
according to the
maintenance
information
NA
Ventilating duct
Ensure whether there is
stuff or foreign objection in
the cooling fan, air vent.
Visual
examination
NA
6.1.2 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 (accumulative hours of the VFD).
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. Replacement fans are available from INVT.
Read and follow the instructions in Chapter 1 "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. Lever the fan holder off the VFD frame with a screwdriver and lift the hinged fan holder
slightly upward from its front edge.
3. Disconnect the fan cable.
4. Remove the fan holder from the hinges.
5. Install the new fan holder including the fan in reverse order.
6. Restore power.
6.1.3 Capacitor
6.1.3.1 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.
Summary of Contents for GD20-0R4G-2-UL
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