Replacement Of Wearing Parts; Capacitor - INVT Goodrive880 Series Hardware Manual

Goodrive880 Series Inverter Unit Hardware Manual
Check scope
Cooling
fan
Cooling
system
Ventilation
duct
For more details about maintenance, contact the local INVT office, or visit our website www.invt.com, and
choose Support > Services.

7.2 Replacement of wearing parts

7.2.1 Capacitor

7.2.1.1 Capacitor reforming
If the inverter unit 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.
Storage time
Less than 1 year No charging operation is required.
1 to 2 years
2 to 3 years
More than 3
years
202311 (V1.0)
Item
Check whether there are cracks,
damage, deformation, or rust.
Check whether
electrolyte leakage
deformation.
Check whether
unusual sounds or vibration.
Check whether the bolts loose.
Check whether
decoloration caused
overheat.
Check whether there is dust.
Check whether there are foreign
matters blocking or attached to
the cooling fan, air inlets, or air
outlets.
Check whether there are foreign
objects attached.
The inverter unit needs to be powered on for 1 hour before the first running
command.
Use a voltage controlled power supply to charge the inverter unit:
Charge the VFD at 25% of the rated voltage for 30 minutes,

and then charge it at 50% of the rated voltage for 30 minutes,

at 75% for another 30 minutes,

and finally charge it at 100% of the rated voltage for 30 minutes.

Use a voltage controlled power supply to charge the inverter unit:
Charge the VFD at 25% of the rated voltage for 2 hours,

and then charge it at 50% of the rated voltage for 2 hours,

at 75% for another 2 hours,

and finally charge it at 100% of the rated voltage for 2 hours.

Method
Visual inspection
Visual inspection,
there is and determine the
or service life based on
the maintenance
information.
Auditory and visual
there are inspection, and turn
the fan blades with
your hand.
Screw them up.
Visual inspection,
there is
and determine the
due to
service life based on
the maintenance
information.
Visual inspection
Operation principle
Maintenance and inspection
Criterion
No exception occurs.
No exception occurs.
The rotation is
smooth.
No exception occurs.
No exception occurs.
No exception occurs.
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