131F0427
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MPN: FC-102P11KT4E20H1XGXXXXSXXXXAXBXCXXXXDX
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The Danfoss 131F0427 drive, a part of the VLT FC 102 HVAC Drives series, features a power rating of 11 kW and operates on three-phase input voltage of 380-480 VAC. It comes with vector control and a graphical advanced panel. The drive is IP20 rated, weighs 12 kg, and supports Modbus RTU communication.
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Product Description:
The 131F0427 is a VLT FC 102 HVAC drive from Danfoss that is designed with the product code FC-102P11KT4E20H1XGXXXXSXXXXAXBXCXXXXDX. It delivers a nominal power of 11 kW and operates from a three-phase mains voltage of 380 to 480 V AC. The drive comes with an RFI filter and its switching at the input supply is allowed 1 to 2 times/minute.
The 131F0427 drive provides output voltage from 0 to 100% of the supply voltage and its output frequency range is from 0 to 590 Hz. Its switching frequency can be set from 2 to 16 kHz and its ramp timing is adjustable from 0.01 to 3600 seconds. The unit’s kVA rating is 16.6 and its continuous output current range is 24 to 26.4 A at 380 to 440 V AC, while at 441 to 480 V AC its current range is 21 to 23.1 A. Its power loss during operation is measured as 392 W and it utilizes 22 A of steady current at 400 V. This 131F0 drive offers six programmable digital inputs, two inputs can function as digital outputs and its logic type is PNP/NPN. It supports a voltage level 0 to 24 VDC, with a maximum voltage input of 28 VDC and its input resistance is approx. 4 kΩ.
The 131F0427 drive includes USB interface type 1.1 with type B plug and an RS485 interface is built in with speed up to 115 kBaud. Its relay outputs include two programmable contacts with 240 V AC at 2 A of rating. There are two analog inputs provided, they support 0 to 10 V or 0 to 20 mA and the analog output is within a range of 0 to 20 mA at a max load of 500 Ω. The unit’s scan interval is 5 ms and its pulse input accuracy is within 0.1% of full scale.
Frequently Asked Questions about 131F0427:
Q: How does the adjustable switching frequency (2-16 kHz) reduce motor audible noise?
A: The higher switching frequencies allow finer PWM steps, which smooth output waveform and reduce audible resonances. Lower settings save switching losses but may cause more motor noise at low loads.
Q: What thermal protection mechanisms are likely employed in the 131F0427 drive?
A: It typically includes over-temperature sensors on IGBTs and heat sink, triggering shutdown or derating when internal temperatures exceed safe limits. Prolonged high ambient conditions can also cause thermal derating to protect power components.
Q: Why is the RFI filter important for compliance with EMC standards?
A: The RFI filter suppresses conducted electromagnetic interference at the input, helping the drive comply with regulatory limits like EN 55011/EN 61800-3. It prevents interference with nearby sensitive control or monitoring equipment.
Q: Why are both 0-10 V and 0-20 mA analog input options included in the 131F0427 drive?
A: These dual modes allow compatibility with different sensors or controls—voltage signals from potentiometers or voltage transmitters, and current loops common in industrial instrumentation. Users can select the mode that suits their existing infrastructure.
Q: What is the significance of input resistance ≈ 4 kΩ for the digital inputs on the 131F0427 drive?
A: This input resistance defines the current draw and compatibility with source devices—ensuring sensors or switches provide sufficient drive without overloading. It also impacts noise immunity and the threshold of recognition of signal changes.
