Chapter 1 Inspection and safety precautions
2
1-2.Safety precautions
Safety precautions in this manual are divided into the following two categories:
Danger: The dangers caused by failure to perform required operation, may result in serious
injury or even death;
Caution:The dangers caused by failure to perform required operation, may result in moderate
injury or minor injury, and equipment damage;
●When unpacking, if control system with water, parts missed or
component
damaged
are found, do not install.
●If packing l
i
st does not match the real name, do not install.
●When carrying the inverter, be sure to hold on the housing. If
grab the
front
cover, the main body of inverter may fall down and
there is the risk of damage to the equipment.
●Gently carry with care, otherwise there is the risk of damage to
equipment.
●Do not
use
the frequency inverter with damage or missing parts,
otherwise
there
is the risk of injury.
●This device has passed the withstand voltage test before leaving
factory,
do
not test any parts of the inverter .High voltage may lead
to damage to the inverter insulation and internal parts.
●Do not modify the inverter .The modified inverter may has risk of
electric shock .We shall not take any responsibility if your company
or your customer has modified the product.
●Never twist the mounting bolts of the equipment components,
especially the bolt with the red mark.
●Non-electrical construction professionals are not allowed to
install,maintain, inspect or replace parts.Otherwise there is a risk of
electric shock.
●Encoder must use the shielded wire, and the shielding layer must
ensure the single-ended grounded.
●Do not install transformers or other devices that generate
electromagnetic waves or interference around the inverter, otherwise
it will lead to the wrong operation of the inverter . if need to install
such kind of device , a shield plate shall be set between the device
and the inverter .
●Do not connect the wire when power on , otherwise there is a risk
of electric shock. Please cut off the power of all equipment before
checking. Even though the power is cut off , there is residual
voltage in the internal capacitor. Please wait at least 10 minutes
after power off.
●The contact current of inverter over than 3.5mA, please ensure
the grounding of inverter is good . Otherwise there is a risk of
electric shock.
●Please connect the output terminal U,V,W of inverter to the input
terminal U,V,W of motor. Be sure the motor terminals and inverter
terminals are in same phase sequence. If the phase sequence is
different , it will cause the motor to rotate in reverse.
●Do not connect the power to the output terminal of inverter,
otherwise it will damage the inverter , even cause fire.
●In some systems , the machine may start suddenly when power
on, there is a risk of death or injury.
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