175Z0745
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The Danfoss 175Z0745 belongs to the VLT 5000 Frequency Converters series and features a compact design with an IP54 enclosure class. It includes a local control panel (LCP) and accommodates a maximum motor cable length of 150 meters when screened. The converter's true power factor is 0.90, and its max short-circuit rating is 100,000 Amps.
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Product Description:
The 175Z0745 Frequency Converter is an industrial-grade motor control solution manufactured by Danfoss. This unit is part of the reliable VLT 5000 series, known for stable and efficient power conversion. It is designed to work with a three-phase power supply within a voltage range of 380-500 VAC. The supply frequency supported is 48 to 62 Hz which allows flexible installation.
The 175Z0745 Frequency Converter has an input current rating of 3.8 A for consistent energy flow. This model delivers 1.5 kW nominal power in CT mode, and 0.250 kW under a 10% duty cycle. The converter has a resistance of 310 ohms and an inductance of 1.934 mH. These features contribute to stable power conversion. The output frequency range is 0 to 132 Hz, which allows for flexible motor speed control. Ramp times are adjustable between 0.05 to 3600 seconds, suitable for various load conditions. This frequency converter supports a braking duty cycle at 100% torque continuously which enables efficient dynamic braking. The cycle time of this frequency converter is 120 seconds which maintains consistent operation in demanding tasks. It is suitable for diverse applications with variable load demands. The combination of advanced braking, adjustable ramp times, and high protection class ensures reliable operation.
The 175Z0745 Frequency Converter is equipped with a Profibus DP Fieldbus option for seamless communication. It supports system integration in automated environments. The enclosure class is IP54 which offers protection against dust and splashing water. Its compact enclosure type ensures space-saving installation. These VLT 5000 Frequency Converters guarantee durability and performance for industrial control systems.
Frequently Asked Questions about 175Z0745:
Q: Why is the ramp time adjustability from 0.05 to 3600 seconds beneficial?
A: The adjustable ramp time allows for fine-tuned acceleration and deceleration of motors, helping reduce mechanical stress and energy spikes during load transitions.
Q: How does the 1.934 mH inductance in 175Z0745 frequency converter contribute to power stability?
A: The inductance smooths current flow and suppresses harmonics, ensuring efficient motor operation and minimizing interference in sensitive industrial control systems.
Q: What’s the function of the Profibus DP interface in the 175Z0745 Frequency Converter?
A: The Profibus DP enables high-speed communication with PLCs and SCADA systems, allowing centralized control and diagnostics for improved system efficiency.
Q: Why is continuous 100% torque braking useful in the 175Z0745 frequency converter?
A: The ability to sustain full braking torque without overheating makes it ideal for conveyor systems and dynamic stop/start applications, ensuring rapid stopping under load.
Q: What role does the 310 Ω resistance play in the 175Z0745 frequency converter performance?
A: The resistance aids in dynamic braking by dissipating regenerative energy, reducing wear on mechanical brakes and extending the system's service life.
