1.2.10 Lightning Impulse Protection
The series inverter has lightning over current protection device, and has
certain self-protection capacity against the lightning. In applications where lightning
occurs frequently, the user shall install additional protection devices at the front-end
of the inverter.
1.2.11 Altitude and Derating
In areas with altitude of more than 1,000 meters, the heat sinking effect of the
inverter may turn poorer due to rare air. Therefore, it needs to derate the inverter for
use. Please contact our company for technical consulting in case of such condition.
1.2.12 Certain Special Use
If the user needs to use the inverter with the methods other than the
recommended wiring diagram in this manual, such as shared DC bus, please consult
our company.
1.2.13 Note of Inverter Disposal
The electrolytic capacitors on the main circuit and the PCB may explode
when they are burnt. Emission of toxic gas may be generated when the plastic parts
are burnt. Please dispose the inverter as industrial wastes.
1.2.14 Adaptable Motor
1) The standard adaptable motor is four-pole squirrel-cage asynchronous induction
motor. If such motor is not available, be sure to select adaptable motors in according
to the rated current of the motor. In applications where drive permanent magnetic
synchronous motor is required, please consult our company;
2) The cooling fan and the rotor shaft of the non-variable-frequency motor adopt
coaxial connection. When the rotating speed is reduced, the cooling effect will be
poorer. Therefore, a powerful exhaust fan shall be installed, or the motor shall be
replaced with variable-frequency motor to avoid the over heat of the motor.
3) Since the inverter has built-in standard parameters of the adaptable motors, it is
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