175Z7371
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT6062GT4CN1STR0DLF00A00C0
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The 175Z7371 drive boasts a horsepower rating of 60 HP, a voltage range of 380-440 V / 441-460 V, a nominal output current of 90 A at 380-440 V, and maximum line fuses rated at 125 A. Part of the VLT 6000 HVAC Drives series by Danfoss, it features NEMA 1/NEMA 12 enclosures for versatile applications.
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Product Description:
The 175Z7371 Frequency Converter provides a wide frequency operating range and is designed for efficiency and precise control. It is ideal for asynchronous motors. This model delivers accurate speed and torque output.
The Danfoss 175Z7371 frequency converter operates with a supply frequency range of 48 – 62 Hz ± 1 % for flexibility in power supply conditions. It supports a rated motor frequency of 50/60 Hz and can output frequencies between 0 – 1000 Hz with a resolution of ± 0.003 Hz. This converter is designed with precise control capabilities in both open and closed-loop motor applications. The system response time is 3 milliseconds that allows fast adjustments in motor operation. The speed control range of the model in open loop operation is 1:100 of synchronous speed. For open-loop systems, the speed accuracy is ± 7.5 rpm below 1500 rpm and ± 0.5 % of actual speed above 1500 rpm. In closed-loop control, process accuracy reaches ± 1.5 rpm below 1500 rpm and ± 0.1% above. The converter allows unlimited switching on output and supports ramp times from 1 to 3600 seconds for both acceleration and deceleration processes. It allows approximately one switch per 2 minutes on the L1, L2 and L3 supply inputs. It is built to withstand short circuit currents up to 100,000 A.
The starting torque of the 175Z7371 frequency converter is 110 % for 1 minute. A higher breakaway torque can reach up to 160 % for 0.5 seconds using parameter 110. Acceleration and overload torque are both rated at 100 % and 110 % respectively. The device features a displacement power factor greater than 0.98 and a true power factor of 0.90 at rated load. This frequency converter enables tight control over speed and torque.
Frequently Asked Questions about 175Z7371:
Q: How does the 175Z7371 frequency converter maintain speed accuracy under varying load conditions in open-loop setups?
A: It delivers ±7.5 rpm below 1500 rpm and ±0.5% accuracy above that threshold. This ensures reliable performance even in systems without feedback devices.
Q: What level of responsiveness can be expected from the 175Z7371 during sudden torque or speed shifts?
A: It achieves a system response time of just 3 milliseconds. This allows near-instantaneous correction in fast-changing industrial applications.
Q: Can the 175Z7371 frequency converter safely operate in facilities with high fault current levels?
A: It is built to handle short circuit currents up to 100,000 A. This robustness enhances system protection and fault tolerance in harsh electrical environments.
Q: What torque behavior does the 175Z7371 exhibit during start-up and overload peaks?
A: It provides 110% starting torque for one minute and supports up to 160% breakaway torque for 0.5 seconds. Parameter 110 allows controlled access to peak torque demands.
Q: How does the 175Z7371 ensure efficient energy conversion in full-load operations?
A: It achieves a displacement power factor above 0.98 and a true power factor of 0.90. This supports optimized energy usage with minimal reactive losses.
