Making A Call For Servicing; Keeping The Inverter In Storage - Toshiba TOSVERT VF-MB1 Instruction Manual

Standard replacement cycles of principal parts
As guides, the table below lists part replacement cycles that were estimated based on the assumption that
the inverter would be used in a normal use environment under normal conditions (ambient temperature,
ventilation conditions, and energizing time). The replacement cycle of each part does not mean its service
life but the number of years over which its failure rate does not increase significantly.
Also, make use of the life alarm function.
Part name
Cooling fan
Main circuit
smoothing aluminum
electrolytic capacitor
Relays
Aluminum electrolytic
capacitor mounted on
a printed circuit board
Note 1: The replacement cycle is calculated on the assumption that the average ambient temperature over
a year is 40C. The environment must be free of corrosive gases, oil mist and dust.
Note 2: Figures are for when the inverter output current is 80% of the rated current of the inverter.
Note 3: The life of parts varies greatly depending on the operating environment.

14.3 Making a call for servicing

For the Toshiba service network, refer to the back cover of this instruction manual. If defective conditions are
encountered, please contact the Toshiba service section in charge via your Toshiba distributor.
When making a call for servicing, please inform us of the contents of the rating label on the right panel of the
inverter, the presence or absence of optional devices, etc., in addition to the details of the failure.

14.4 Keeping the inverter in storage

Take the following precautions when keeping the inverter in storage temporarily or for a long period of time.
1. Store the inverter in a well-ventilated place away from heat, damp, dust and metal powder.
2. If no power is supplied to the inverter for a long time, the performance of its large-capacity electrolytic
capacitor declines.
When leaving the inverter unused for a long time, supply it with electricity once every two years, for 5 hours
or more each, to recover the performance of the large-capacity electrolytic capacitor. And also check the
function of the inverter. It is advisable not to supply the commercial power directly to the inverter but to
gradually increase the power supply voltage with a transformer, etc.
Standard replacement
cycle Note 1:
Replacement with a new one (To be determined after
10 years
inspection)
Replacement with a new one (To be determined after
10 years Note 2
inspection)
- Whether to replace or not depends on the check results
Replace with a new circuit board (To be determined after
10 years Note 2
inspection)
N-5
Replacement mode and others
E6581697
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