INVT GD310-011P-4-UL, Operation Manual

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GD310-UL series VFD Maintenance and hardware diagnostics
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9 Maintenance and hardware diagnostics
9.1 What this chapter contains.
The chapter contains preventive maintenance instructions of the VFD.
9.2 Maintenance intervals
If installed in an appropriate environment, the VFD requires very little maintenance. The table lists the
routine maintenance intervals recommended by INVT.
Checking Item Method Criterion
Ambient environment
Check the ambient temperature,
humidity and vibration and
ensure there is no dust, gas, oil
fog and water drop.
Visual examination
and instrument test
Conforming to the
manual
Ensure there are no tools or
other foreign or dangerous
objects
Visual examination
There are no tools
or dangerous
objects.
Voltage
Ensure the main circuit and
control circuit are normal.
Measurement by
millimeter
Conforming to the
manual
Keypad
Ensure the display is clear
enough
Visual examination
The characters are
displayed normally.
Ensure the characters are
displayed totally
Visual examination
Conforming to the
manual
Main
circuit
For public
use
Ensure the screws are tightened
securely
Tighten up NA
Ensure there is no distortion,
crackles, damage or
color-changing caused by
overheating and aging to the
machine and insulator.
Visual examination NA
Ensure there is no dust and
dirtiness
Visual examination
NA
Note : if the color of
the copper blocks
change, it does not
mean that there is
something wrong
with the features.
The lead of
conductors
Ensure that there is no distortion
or color-changing of the
conductors caused by
overheating.
Visual examination NA