178B4544
Wake Industrial LLC is not an authorized distributor of this product.
MPN: AKD2840PT4B20STR1DBF00A00C0
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The 178B4544 adaptive cooling drive offers a rated output power of 4.00 kW, an output current of 9.1 A, a built-in PID controller, and features an IP20 enclosure class. Part of the AKD Adaptive Cooling Drives series by Danfoss, it includes an integrated RFI filter (C2) and supports optional LON RS485 data networking.
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Product Description:
The 178B4544 Frequency Converter from Danfoss is designed for efficient and accurate motor speed regulation. It provides stable performance in industrial environments with reliable output characteristics. The unit offers broad frequency control, compact housing and robust protection.
The 178B4544 frequency converter operates with a three phase input supply of 380 – 480 V at 50/60 Hz and supports a maximum input current of 8.1 A. It is designed for a maximum phase to ground voltage of 300 V. The rated output capacity of the converter reaches 6.3 kVA while the output current is 9.1 A. The device delivers an output frequency range from 0 to 1000 Hz that enables versatile use across applications. The output voltage is adjustable from 0 % to 100 % of supply voltage. The chassis of the model is designed to meet IP20 protection class that is only suitable for installation in controlled environments and allows a maximum ambient temperature of + 45 °C (113 °F). The true power factor is rated at 0.90 nominal at full load and the displacement power factor remains near unity at greater than 0.98. The frequency converter’s voltage imbalance tolerance is within ± 2 % of the rated supply voltage.
The control card of the 178B4544 frequency converter includes one programmable pulse input at terminal 33. It supports maximum frequency input of 67.6 kHz in push pull mode and 5 kHz for open collector mode with a minimum detectable frequency of 4 Hz. The maximum input voltage is 28 V DC with an input resistance of approximately 2 kΩ. The scan interval for input measurement is 13.3 milliseconds. At 100 Hz to 1 kHz input frequency, the maximum error is 0.5 % of full scale.
Frequently Asked Questions about 178B4544:
Q: How does the 178B4544 frequency converter perform in high-frequency motor control applications?
A: It supports output frequency from 0 to 1000 Hz, offering wide dynamic range for precision control. This makes it ideal for systems demanding extended frequency operation or variable-speed processes.
Q: What should be considered when integrating the 178B4544 frequency converter in tightly regulated environments?
A: Its IP20 chassis is suitable only for clean, enclosed installations. It operates reliably at ambient temperatures up to 45 °C, making it best for temperature-controlled industrial panels.
Q: How does the 178B4544 frequency converter handle phase voltage imbalances in harsh power conditions?
A: It tolerates supply voltage imbalance within ±2% of nominal input. This ensures stable converter output even when the power network lacks perfect symmetry.
Q: How does the pulse input configuration on the 178B4544 frequency converter affect signal precision?
A: It supports up to 67.6 kHz in push-pull and 5 kHz in open collector mode. Combined with a 13.3 ms scan interval, this enables reliable pulse signal acquisition across wide speed ranges.
Q: What enables the 178B4544 frequency converter to deliver stable power output under varying load conditions?
A: Its true power factor stays at 0.90 nominal with displacement above 0.98. This allows energy-efficient conversion while minimizing harmonic distortion in downstream equipment.
