IMO iDrive2 XKL Instruction Manual page 67

iDrive2 inverters
Checking part
Cooling fan
Cooling
system
Ventilating duct
6.1.1 Cooling fan
The inverter's cooling fan has a minimum life span of 25,000 operating hours. The actual life span depends on the
inverter usage and ambient temperature.
The operating hours can be found through P07.14 (accumulative hours of the inverter).
Fan failure can be predicted by the increasing noise from the fan bearings. If the inverter is operated in a critical
part of a process, fan replacement is recommended once these symptoms appear. Replacement fans are
available from IMO.
 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 inverter and disconnect it from the AC power source and wait for at least the time designated on the
inverter.
2. Lever the fan holder off the drive 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.
6.1.2 Capacitors
Recharging the capacitors
The DC bus capacitors must be recharged according to the operation instruction if the inverter has been stored for
a long time. The storing time is counted form the producing date other than the delivery data which has been
marked in the serial number of the inverter.
Time
Storing time less than 1 year
Checking item
Estimate whether there
is abnormal noise and
vibration.
Check the fan is secure
in housing
Ensure there is no
color-changing caused
by overheating.
Check for debris or
foreign object in the
cooling fan air vent.
Operation without charging
67
Checking method
information
Hearing and Visual
examination, check Stable rotation
fan rotates freely
NA
Tighten if loose
Visual examination NA
or estimate the
usage time
according to the
maintenance
information
NA
Visual examination
Operational principle
Fault tracking
Criterion