XLT Hitachi X200 User Manual

Page 230

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Spare parts

We recommend that you stock spare parts to reduce down time, including these parts:

Quantity

Part description

Symbol

Used

Spare

Notes

Cooling fan

FAN

1

1

015S, 022S, 015N, 022N,
015L to 075L
015H to 075H

Case

CV

1

1

x Housing cover
x Main case
x Terminal covers

Capacitor Life Curves

The DC bus inside the inverter uses a large capacitor as shown in the diagram below.
The capacitor handles high voltage and current as it smoothes the power for use by the
inverter. So, any degradation of the capacitor will affect the performance of the inverter.

Capacitor life is reduced in higher ambient temperatures, as the graph below
demonstrates. Be sure to keep the ambient temperature at acceptable levels, and
perform maintenance inspections on the fan, heat sink, and other components. If the
inverter is installed on a cabinet, the ambient temperature is the temperature inside
the cabinet.

Rectifier

Motor

Inverter

Converter

Internal

DC Bus

Power

Input

L1

L2

L3

U/T1

V/T2

W/T3

Variable-frequency Drive

6

11

T

roubleshooting and

Maintenanc

e

6

−11

T

roubleshooting and

Maintenance

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