ZFeng 900 Series 355Kw-T-P General Vector Variable Frequency Drive How to choose a suitable frequency converter? - Clarify application requirements
Determine motor type and power: Understanding the type and power of the motor to be controlled
(such as asynchronous motor, synchronous motor, etc.) is the basis
for choosing a frequency converter.
Determine the speed range and accuracy: Based on production requirements, clarify the speed range and
accuracy requirements of the frequency converter.
Determine control mode: Choose appropriate control modes such as manual control, automatic
control, or remote control based on actual control requirements. - Match motor parameters
Voltage and current matching: Ensure that the rated voltage and current of the frequency
converter match the rated voltage and current of the motor.
Power matching: Choose a frequency converter with a rated power equal to or
slightly greater than the rated power of the motor to ensure
sufficient driving capability. - Consider load characteristics
Analyze load type: Select the appropriate frequency converter based on load
characteristics such as constant torque load, constant power load,
square torque load, etc.
Consider starting torque: For equipment that requires a large starting torque, choose a
frequency converter with the corresponding starting torque
capability. - Evaluate the working environment
Consider temperature, humidity, and dust: choose a frequency converter with a protection level suitable for
the working environment requirements.
Consider electromagnetic compatibility: In environments with high electromagnetic interference, choose a
frequency converter with good anti-interference ability. - Consider special application scenarios
Long cable operation: For situations where long cables operate, consider whether the
total length of the cables from the frequency converter to the
motor is within the allowable range of the frequency converter. If
necessary, choose a slightly larger capacity frequency converter or
install an output reactor at the output end.
High temperature and high-altitude environments: In these special environments, the frequency converter may
experience reduced capacity, so a slightly larger capacity
frequency converter should be selected.
High speed motor: The frequency converter used for high-speed motors should be
slightly larger than that of ordinary motors.
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