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Ecowatt
Drive K320 series
®
8.1 What this chapter contains
This chapter describes how to carry out preventive maintenance on the VFD.
8.2 Periodical inspection
Only little maintenance is required when the VFD is installed in an environment that meets
the requirements. The following table describes the routine maintenance periods
recommended by Kruger.
Subject
Ambient environment
Voltage
Keypad
Main
Common
circuit
8 Maintenance
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 is deformed,
cracked, or damaged, or
their color changes due to
overheating and aging.
Check whether there are
stains and dust attached.
Method
Visual inspection,
and use
instruments for
measurement.
Visual inspection
Use multimeters or
other instruments
for measurement.
Visual inspection
Visual inspection
Screw them up.
Visual inspection
Visual inspection
-270-
Maintenance
Criterion
The requirements
stated in this
manual are met.
There are no tools
or dangerous
substances
placed nearby.
The requirements
stated in this
manual are met.
The characters
are displayed
properly.
The requirements
stated in this
manual are met.
No exception
occurs.
No exception
occurs.
No exception
occurs.
Note:
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