134U7770
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MPN: FC-280PK75T4E20H2BXCXXXSXXXXAL
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The Danfoss 134U7770 drive is part of the VLT FC 280 Midi Drives series and delivers a rated power output of 0.75 kW (1.0 HP). This three-phase device operates at an input voltage of 380-480 VAC, features an integrated PROFINET communication system, and has an IP20 chassis enclosure. It measures 135x320x245 mm and comes with a coated PCB.
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Product Description:
The 134U7770 Frequency Converter supports flexible operating modes and wide voltage compatibility that ensures smooth performance across diverse applications. It provides consistent reliability with built in protection features and adaptive control options.
This 134U7770 frequency converter from Danfoss deliver shaft outputs of 0.75 kW. It supports a supply frequency of 50 - 60 Hz ± 5 % that ensures compatibility across various systems. The speed control function of this converter can operate in two modes: open loop sensorless control for simpler setups or closed loop PID control when higher accuracy is required. The torque control is available in both open loop and closed loop configuration, with torque set through analog, digital or bus-controlled inputs. The converter also manages process driven control that allows integration where motor speed or torque regulates application parameters like pressure, tension or temperature. A true power factor of ≥ 0.9 ensures efficiency under rated loads while a displacement power factor above 0.98 supports stable operation. The frequency converter is designed to support an intermittent output current of 3.5 A for a maximum duration of 60 seconds. This capability allows the converter to handle short term overload conditions without compromising system stability or triggering protective shutdown mechanisms. The VLT FC 280 Midi series frequency converter is engineered for operational flexibility and smooth performance. It features unlimited switching on output to enable reliable handling of frequent start stop applications.
The 134U7770 frequency converter handles 2.2 A for continuous output current at 3 x 380 – 440 V. Under 3 x 441 – 480 V, the respective current 2.1 A. The model tolerates a maximum temporary mains phase imbalance of 3.0 % that maintains stability even under fluctuating supply conditions.
Frequently Asked Questions about 134U7770:
Q: How does the 134U7770 manage frequent stop-start cycles in high-duty applications?
A: It supports unlimited switching on the output, allowing seamless control during repetitive motion tasks. This helps reduce wear and ensures stable torque delivery without compromising system reliability.
Q: What control modes make the 134U7770 converter flexible across different system designs?
A: The unit offers both open loop sensorless and closed loop PID control for speed and torque. This allows it to support basic drives and precision-critical environments with equal efficiency.
Q: How does the 134U7770 converter ensure efficiency during variable load conditions?
A: Its true power factor remains ≥ 0.9 under rated conditions, which reduces wasted energy. The displacement power factor above 0.98 improves reactive power handling during peak loads.
Q: In what ways can the 134U7770 regulate torque for process-driven control tasks?
A: Torque settings can be applied through analog, digital, or bus inputs in open or closed loop modes. This versatility helps tailor torque output to pressure, temperature, or tension-driven systems.
Q: How does the 134U7770 maintain output integrity under power fluctuation scenarios?
A: It tolerates a temporary mains phase imbalance of up to 3.0%, which stabilizes operation during uneven supply conditions. This feature helps preserve output current control and motor protection.
