Tecorp HC2V9G4075 [154/182] Periodic maintenance

Tecorp HC2V8G21P5 [154/182] Periodic maintenance
High Performance Vector Control/Torque Control Inverter User Manual
132
Chapter 8 Routine Repair and Maintenance
8.2 Periodic Maintenance
It needs to perform periodic inspection on the inverter once every three to six months according to the
application environment and work conditions.
Item Inspection Contents
Inspection Means Criteria
Main circuit terminal Screwdriver/sleeve
The screws are tightened and the
cables are kept well.
PE terminal Screwdriver/sleeve
The screws are tightened and the
cables are kept well.
Control circuit terminal
Screwdriver
The screws are tightened and the
cables are kept well.
Reliability of internal
connections and
connectors
Screwdriver and
hands
Connection is firm and reliable.
Expansion card
connector
Screwdriver and
hands
Connection is firm and reliable.
Mounting screws Screwdriver/sleeve The screws are tightened.
Cleaning the dusts
and powders
Cleaner There are no dusts and wools.
Inverter
Internal foreign
objects
Visual check There are no foreign objects.
Motor Insulation test 500VDC megameter Normal
8.3 Component Replacement
Different types of components have different service lives. The service lives of the components are
subject to the environment and application conditions. Better working environment may prolong the
service lives of the components. The cooling fan and electrolytic capacitor are vulnerable components
and shall be conducted routine inspection as per the table below. If any fault occurs, please conduct
immediate replacement.
Vulnerable
Components
Damage Causes Solutions
Items for Routine Inspection
Fan
Bearing wear, blade
aging
Change
The fan blade has no cracks and rotates
normally. The screws are tightened.
Electrolytic
capacitor
Ambient temperature
is relatively high and
electrolyte volatilizes.
Change
There are no electrolyte leakage, color
change, crack and shell inflation. The
safety valve is normal.
Static capacity is equal to or higher than
the initial value times 0.85.
NoteNote
When the inverter is stored for a long period of time, power connection test shall be conducted once
within two years and last at least five hours. It can use voltage regulator to gradually increase the
value to the rated value when power connection is performed.
8.4 Insulation Test
Since the inverter has undergone insulation test upon its ex-factory, the user shall not perform such test

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