Table of Contents
Advertisement
Ecowatt
®
Drive K120 series
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 Kruger. For more detailed information on maintenance, please contact us.
Subject
Ambient environment
Voltage
Keypad
Main
For public use
circuit
6 Fault tracking
Item
Check the temperature, and
humidity, and whether
there is vibration, dust, gas,
oil spray, and water droplets
in the environment.
Check whether there are
foreign matters, such as
tools, or dangerous
substances placed nearby.
Check the voltage of the
main circuit and control
circuit.
Check the display of
information.
Check whether characters
are
not completely displayed.
Check whether the bolts
loose or come off.
Check whether the machine
and insulator is deformed,
cracked, or damaged, or
their color changes due to
overheating and aging.
-113-
Method
Visual
The
inspection,
requirements
and use
stated in this
instruments
manual are
for
met.
measurement.
There are no
tools or
Visual
dangerous
inspection
substances
placed nearby.
Use
The
multimeters
requirements
or other
stated in this
instruments
manual are
for
met.
measurement.
The characters
Visual
are displayed
inspection
properly.
The
requirements
Visual
stated in this
inspection
manual are
met.
Screw them
No exception
up.
occurs.
Visual
No exception
inspection
occurs.
Fault tracking
Criterion
Advertisement
Table of Contents
