175Z0044
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MPN: VLT5003PT5B20SBR3D0F00A00C0
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In-Stock, Ships in 3 Days
The 175Z0044 frequency converter boasts an input voltage range of 3 x 380-500 V AC, an output frequency of 0-1000 Hz, and a standard brake hardware configuration. As part of the VLT 5000 Frequency Converters series by Danfoss, it features IP20 enclosure class and delivers an output power of 3.1 kVA.
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Product Description:
The 175Z0044 Frequency Converter from Danfoss delivers accurate and flexible speed and torque regulation for asynchronous motors. It ensures stable and efficient performance in demanding environments with a frequency range of 0 to 1000 Hz and a resolution of ± 0.003 Hz. The unit offers fast system response time of 3 milliseconds.
This 175Z0044 frequency converter supports both open loop and closed loop speed control. In open loop mode, it achieves a control range of 1:100 of synchronous speed. In closed loop mode, the control range extends to 1:1000 of synchronous speed. The speed accuracy in open loop is maintained within ± 7.5 rpm at speeds below 1500 rpm. The closed loop speed accuracy is further improved to ± 1.5 rpm below 1500 rpm. The torque control accuracy also varies by mode. In open loop, the torque error is within ± 20 % of rated torque for 0 – 150 rpm. For speed feedback torque control, accuracy improves to ± 5 % of rated torque. These features ensure the drive performs well in both precision and general applications. The model includes multiple protection mechanisms. It is protected against short circuiting and earth faults on terminals U, V, W. The intermediate circuit voltage is monitored and the converter shuts down if voltage is outside limits. This ensures safety and protects motor and drive components from damage during abnormal conditions.
The 175Z0044 frequency converter is equipped with two independent fully programmable relay outputs. Each relay can be configured to perform a range of control and monitoring functions such as fault indication, external equipment signaling or process interlocking depending on the application requirements. The relay outputs are physically accessible on terminals 4 and 5.
Frequently Asked Questions about 175Z0044:
Q: What level of system responsiveness can be achieved with the Danfoss 175Z0044 frequency converter in dynamic load environments?
A: It delivers a response time of just 3 milliseconds across control cycles. This rapid adjustment supports demanding environments requiring fast speed and torque transitions.
Q: How does the Danfoss 175Z0044 frequency converter manage speed regulation in high-precision closed loop systems?
A: It maintains speed accuracy within ±1.5 rpm below 1500 rpm when operating in closed loop mode. This allows stable performance in applications where minor speed variations can affect process quality.
Q: What control behavior should be expected from the 175Z0044 frequency converter under low-speed torque conditions?
A: In open loop operation, it holds torque within ±20% of rated value down to 150 rpm. For closed loop torque control, accuracy improves significantly to ±5%, ideal for high-torque low-speed tasks.
Q: How does the Danfoss 175Z0044 drive protect against abnormal voltage and fault conditions during operation?
A: It monitors intermediate circuit voltage in real time and shuts down if values move outside safe thresholds. Protection is also provided at U, V, and W terminals against short circuits and earth faults.
Q: How do the programmable relay outputs on the 175Z0044 frequency converter support external control integration?
A: It provides two relay outputs on terminals 4 and 5 for AC or DC load switching. These support automation logic with load ratings suitable for both control signals and auxiliary actuation.
