PFTL101A controller
- 99 Bag / Bags per Month
Product Details
Brand Name: | 3BSE004160R1 | Model Number: | PFTL101A |
Product Description
When pulse width modulation is not optimized for the motor and application, the heat dissipation generated by the motor and frequency converter is unbalanced. If the pulse width modulation is too low, the motor will heat up faster, manifested as a harsh sound from the motor. Ultimately, this may lead to insulation breakdown or bearing pitting issues. High pulse width modulation requires the frequency converter to output more power, ultimately causing the frequency converter to overheat and shortening its lifespan.
Elevated pulse width modulation also increases the reflected waves between the motor and the frequency converter, which leads to an increase in current induction in the motor shaft, leading to motor bearing pitting and grounding faults in the frequency converter. By fine-tuning pulse width modulation, users can balance thermal displacement and extend the lifespan of motors and frequency converters.
Deceleration time
The deceleration time is a parameter that determines the time required for the frequency converter to slow down the motor. A longer deceleration time means that the time required for the speed to decrease to a complete stop of the motor is longer. Although many installers are aware of optimizing acceleration time to prevent overcurrent issues during startup, deceleration time is often overlooked.
Adjusting the deceleration time is important for preventing overvoltage faults. When the motor is powered off and continues to rotate due to the inertia of the load, overvoltage faults may occur. This rotation causes the motor to generate electricity and feed it back to the frequency converter, resulting in the frequency converter malfunctioning. In this case, an appropriate deceleration time will reduce the electricity generated by the deceleration load and prevent faults from occurring.
For example, if the user has a motor that controls the fan and takes 10 seconds to slow down and stop the fan, the frequency converter should be programmed using this deceleration time to extend the lifespan of the motor. However, please note that if a quick stop is required due to process or safety reasons, additional hardware may be required and relevant experts should be consulted.
Minimum operating speed
The minimum operating speed is a speed setting value, usually calculated as a percentage of the maximum speed, below which the frequency converter will notify the motor not to run. Since most motors are cooled by internal fans, the speed of the fan is directly related to the motor speed, setting the minimum operating speed is crucial to prevent possible motor overheating at low speeds.
For example, if the minimum operating speed is set to 10% and someone provides a speed reference of 5% to the frequency converter, the frequency converter will not drive the motor. Please remember to ensure that when configuring any programmable logic controller (PLC), consideration is given to controlling integrators, such as proportional integral differential (PID) algorithms, where the frequency converter is controlled by a control variable (CV).
Contact information: 15359293870
WhatsApp:+86 15359293870
Contact person: KELLY
Email: geabbdcs@gmail.com 386353502@qq.com
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4 digital inputs, 1 analog input, and 1 relay output.
Product specifications:
Starting torque: 180% at 3 Hz, 200% at 5 Hz (vector)
Carrier frequency: 1-15 KHz
Control method: SVPWM, V/F control, magnetic flux vector control
Output frequency: 0-650.00 Hz
Starting torque: 180% at 3 Hz, 200% at 5 Hz (flux vector)
Protection function: output short circuit, overcurrent/voltage, low voltage, motor overheating, IGBT overheating, grounding/leakage, communication abnormality protection
Cooling method: 0.4KW product natural cooling, other air cooling
Display functions: output frequency, output current, output voltage, output power, alarm recording (up to 12 sets), etc
LED light: frequency monitoring, voltage monitoring, current monitoring, motor operation indication, control mode indication, external operation panel indication
Surrounding temperature: -10~+50 ℃ (unfrozen)
Surrounding humidity: below 90% Rh (without condensation)
Storage temperature: -20~+65 ℃
Protection level: IP20
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