dooch Q-Drive NQ-0075-S, User Manual, Page: 6 / 80

[SAFETY PRECAUTIONS]
4 | DOOCHPUMP
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Do not install static condenser, radio noise filter, and so on at the output terminals of the
drive.
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Check if the power input line and motor output line are interchanged.
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Faulty terminal connection may cause damage on the drive.
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Use the circuit breaker.
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Do not install leakage breaker at the power input.
* If you have any problems , please contact our local agent.
C. Checkup on Initial Operation
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Be sure to check setup parameters of the drive before operating it first. It may require
changing parameters according to states such as type of pump or installed system
environments.
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For terminal blocks for main power circuit and control circuit, be sure to follow connection
method and electrical specifications specified on this manual. Improper use may damage on
the drive.
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Be sure to use pressure sensors and low water level sensor specified by Dooch.
D. Operation
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Since it has automatic restart and recovery functions after power failure in default
and it is automatically restarted in case it is stopped due to fault or system alarm or power is
turned off during operation, be careful when power is applied initially.
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Do not modify or change inside of the product without approval
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Do not start or stop the drive with electronic contactor installed at the power input.
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Install EMC filters to reduce impact from electromagnetic wave in order to protect
electronic equipment being used near the drive.
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Install input reactor when input voltage is in unbalanced condition. Static condenser or
generator may be overheated and destroyed due to high frequency on power source
generated by drive.