（1）Before connecting, make sure the power supply has been cut off for more
than 10min, otherwise, there would be electric shock danger.
（2）Never to connect the power line to output terminals U,V,W of inverter.
（3）Because there is leakage current in the inverter, the inverter and motor must
be grounded safely, the grounding wire shall be copper conductor of more
than 3.5 mm², and the grounding resistance shall be less than 10Ω.
（4）User shall not conduct the withstand voltage test for the inverter as it has
passed this test before leaving factory.
（5）Between inverter and motor shall not be installed with the electromagnetic
contactor and absorbing capacitor or other resistance--capacitance
absorbing implements as diagram 3-3.
（6）To take the convenience for over current protection of input side and power
failure maintenance, the inverter shall be connected to power supply
through intermediate breaker.
（7）The connecting wire (DI1~DI6, DO1, DO2)of input and output circuit of
relay shall be the stranded wire or shielded wire of over 0.75mm², one end of
shielded layer shall be hung in the air, and the other is connected with the
earthing terminal E of inverter, the connecting wire shall be less than 50m.
（1）Make sure the power supply of inverter has been cut off thoroughly, all LED
lamps of keyboard has went out, and wait for more than 10min, till now,
can perform the wiring operation.
（2）Make sure that DC voltage between main circuit terminals P+ and P- of
inverter steps down to DC36V below, till now, start to perform the wiring
operation.
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