In Case Of A Failure; Cautions For Storage - Toshiba TOSVERT VF-AS3 Instruction Manual
High-performance industrial inverter for 3-phase motors, 3-phase 240v class 0.4 to 55kw, 3-phase 480v class 0.4 to 280kw
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14. 3 In case of a failure
Should a failure occurs, contact your Toshiba distributor. Before contact, check the information on the
name plate attached on the right side of the inverter unit, and presence or absence of the optional parts to
inform the distributor of them as well as inverter problems.
14. 4 Cautions for storage
If you store the inverter temporarily or for a long time after purchase, follow the instructions below.
(1)
Storage location
Store the inverter indoors. Avoid to be exposed to direct sunlight, corrosive, explosive or flam-
mable gases, salt, oil mist, dust, metal powder, vapor or condensation.
Storage temperature and Relative humidity are shown in the table below.
(2)
Periodical check
If no power is supplied to the inverter for a long time, the performance of its main circuit
smoothing aluminum electrolytic capacitor declines.
When leaving the inverter unused for a long time, energize it for an hour or more each without
load in accordance with the table below, to recover the performance of the electrolytic capaci-
tor. Then check the function of the inverter.
Short-term Storage
(within one month such as during
transportation)
Long-term Storage
(exceeding one month)
Storage
Relative humidity
temperature [°C]
-25 to 70
within 95%
-10 to 40
within 90%
14-7
E6582062
how to recover the performance
of the electrolytic capacitor
Supplying power without load is
not required.
Supply power once every two
years for an hour or more.
14. Maintenance and inspection
3
9
14
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