dooch Q-Drive NQ-0075-S, User Manual, Page: 7 / 80

[SAFETY PRECAUTIONS]
5 | DOOCHPUMP
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In case of driving 400V class motor with the drive, use the motor with reinforced
insulation or conduct suppress measure against micro-surge voltage. (Motor may
be sometimes destroyed upon deteriorated its insulation performance due to
micro-surge voltage.)
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In case of initialization of parameters, set up required parameters again before
operation. Parameter initialization changes the parameter values to factory settings.
E. Reaction on Failure and Malfunction
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In case drive is destroyed to make operation impossible, reliability of pump system
may become deteriorated. It is recommended to install additional auxiliary system in
preparation of such situations.
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For countermeasure against drive failure, refer to
Chapter 7