Chapter 6 Fault Tracking; Fault Prevention; Periodical Maintenance - INVT Goodrive20-UL VFD Series Operation Manual

Goodrive20-UL Series VFD

6.1 Fault prevention

This chapter describes how to carry out preventive maintenance on VFDs.

6.1.1 Periodical maintenance

If the VFD is installed in an environment that meets requirements, little maintenance is needed.
The following table describes the routine maintenance periods recommended by INVT. For
more detailed information on maintenance, please contact us.
Checking part
Ambient environment
Voltage
Keypad
Main
For public use
circuit

Chapter 6 Fault tracking

Checking item
Check the ambient
temperature, humidity and
vibration and ensure there
is no dust, gas, oil fog and
water drop.
Ensure there are no tools
or other foreign or
dangerous objects
Ensure the main circuit
and control circuit are
normal.
Ensure the display is clear
enough
Ensure the characters are
displayed totally
Ensure the screws are
tightened scurrility
Ensure there is no
distortion, crackles,
damage or color-changing
caused by overheating
and aging to the machine
and insulator.
-101-
Checking
method
Visual
examination and
instrument test
Visual
examination
Measurement by
multimeter
Visual
examination
Visual
examination
Tighten up
Visual
examination
Fault tracking
Criterion
Conforming to
the manual
There are no
tools or
dangerous
objects.
Conforming to
the manual
The characters
are displayed
normally.
Conforming to
the manual
NA
NA