SINUS MINI High performance Vector Control Inverter User Manual
11
varistor; the output control relay in inverter contactor contactor occasions and frequent action, this is
especially important.
●The connection wire of the motor shall be shielded cable or armored cable, and the grounding end of
the shielding layer can be reliably grounded by the cable grounding card
●Install "input noise filter" can reduce the electromagnetic interference brought from the grid side of
other equipment, the input side noise filter "must be as close as possible to the inverter power input terminal,
at the same time, with the same inverter filter must be reliable grounding.
●Install "the output side filter can reduce noise" wireless interference from the motor and the inductive
interference, "the output side filter noise" must be as close as possible to the inverter output terminals, at the
same time, with the same inverter filter must be reliable grounding.
●Shielded cable or twisted pair shall be used whenever the control loop is connected
●Adding the "zero phase reactor" in the power line near the inverter input terminal, adding the "zero
phase reactor" in the motor line near the inverter output terminals, adding "zero phase reactor" in the control
line near the inverter control terminal, can effectively reduce the electromagnetic interference and the main
power cable connected inverter induction.
●Grounding, correct and reliable grounding are the basic conditions for the safe and reliable operation
of this product. In order to properly connect the inverter to the ground, please read the following cautions
carefully
●To avoid electric shock, please use the dimensions specified in the electrical
equipment technical standard, and shorten the wiring length as much as possible, and
the grounding resistance is below 10 Omega.Otherwise, the leakage current caused by
the inverter will lead to the unstable potential of the grounding terminal far from the
grounding point, which will lead to an electric shock accident
●Do not share the ground wire with the welder or power equipment that requires high
current / pulse current, otherwise it will cause abnormal operation of the inverter
●When using multiple inverters, do not loop the ground. Otherwise, the inverter will act
abnormally
●The motor must be grounded independently, and the motor casing can not be
connected to the ground terminal of the inverter, nor can the same ground network be
shared with the control system
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