Toshiba Tosvert VF-A5 - Manual (Page 13)

Running with light loads:
Power-factor improvement
capacitors;
Operating a large capacity motor with a light load using a small
capacity (kVA) inverter must be avoided. The output peak current will
increase due to the current ripple, and overcurrent trips may
frequently occur.
Power-factor improvement capacitors must not be installed on the
inverter’s output. When operating a motor with power-factor
improvement capacitors installed, remove the capacitors, or the
inverter may fault trip or the capacitors may be damaged.
Use with voltage sources
other than the rated voltage:
Protection device for
lightning surges:
Use with voltage sources other than the rated voltage is not possible.
If necessary, use a transformer, etc., to increase or decrease the
source voltage to the rated voltage.
A DSA (lightning surge absorber) is used for protection in the unit. If a
surge voltage exceeding 2600 to 3600V peak is applied, the device
will light like a glowing electrical discharge. This will cause no
problems if the condition does not continue for an extended period of
time.
(Refer to Fig. 6-2-1 Fig. ® on page 21.)
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