Chapter 8 Maintenance And Hardware Fault Diagnosis; What This Chapter Contains; Periodical Inspection - Hitachi S1 Series Basic Manual

S1 series standard inverter

Chapter 8 Maintenance and hardware fault diagnosis

8.1 What this chapter contains

This chapter describes how to carry out preventive maintenance on S1 series inverters.

8.2 Periodical inspection

Little maintenance is required when inverters are installed in environments that meet requirements.
The following table describes the routine maintenance periods recommended by HITACHI.
Subject
Ambient environment
Voltage
Keypad
Main
Common
circuit
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
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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:
Discoloration of
copper bars does
not mean that they
cannot work
properly.