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134U2988 Danfoss

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The Danfoss 134U2988 is a 20 HP Midi Drive from the VLT FC 280 Midi Drives series with a power rating of 15 kW. It features a coated PCB, brake chopper, and standard control card with Modbus. The drive operates at three phase 380-480 VAC and has an IP20 protection rating with EMC Cat C1 and C2 RFI filters.

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Product Description:

The 134U2988 is a variable-frequency drive produced by Danfoss for the VLT FC 280 Midi Drives series. In an automation cell, it regulates the speed of three-phase induction motors, allowing pumps, conveyors, and mixers to match process demand instead of running continuously at the mains frequency. The power stage, control logic, and fieldbus interface are contained within a compact chassis suitable for installation in an industrial control cabinet.

The drive has a rated output power of 15 kW, which corresponds to approximately 20 HP for applications that use imperial units. The input section accepts a three-phase supply of 380–480 VAC, allowing direct connection to common low-voltage industrial feeders without an isolation transformer. During rapid motor deceleration, the built-in brake chopper directs excess energy from the DC bus to a properly sized external resistor. Command and diagnostic data pass through a standard control card with Modbus, giving connected PLCs access to operating parameters, status words, and fault information without requiring an additional communication board. This arrangement supports remote control and monitoring through the serial communication network while keeping the drive’s internal interface compact.

The chassis has an IP20 protection rating, which provides protection against accidental finger contact with live components while permitting airflow inside the control cabinet. Conducted emissions are limited by an integrated EMC Category C1 at 200 V and C2 at 400 V radio-frequency interference filter, helping reduce electrical noise transmitted through connected power lines. Circuit boards have a protective PCB coating that shields copper traces and electronic components from moisture and airborne contaminants in humid or dusty production areas. The unit includes a standard language pack and is supplied without a built-in display, so operator interaction is provided through an external human-machine interface. Removing the onboard display also keeps the front cover compact and reduces the space required for cabinet installation.

Adaptation A
No Adaption
Adaptation B
No Adaption
Brake & Stop
Brake chopper
Coating
Coated PCB
Control Card
Standard w. Modbus
Display
No display
Horse Power
20 HP
Mains Option
No mains options
Power Rating
15 KW
Product Group
Midi Drive FC
Protection Rating
IP20 / Chassis
RFI Filter
EMC Cat C1(200V)/C2(400V)
Series
280
Software Language Pack
Standard language pack
Special Version
Latest release
Voltage
Three phase 380-480 VAC

Frequently Asked Questions about 134U2988:

Q: What input voltage does the 134U2988 Midi Drive accommodate?

A: The Danfoss 134U2988 VLT FC 280 Midi Drive supports a three-phase 380-480 VAC voltage input for industrial applications.

Q: Does the 134U2988 drive include a brake chopper?

A: This model features an integrated brake chopper for efficient handling of braking energy during motor stop cycles.

Q: What is the maximum power rating of the Danfoss 134U2988?

A: The 134U2988 offers a power rating of 15 kW, enabling it to drive motors up to 20 HP.

Q: What type of communication interface is available on the 134U2988 control card?

A: The 134U2988 provides standard control with Modbus communication via its control card.

Q: Is the printed circuit board of the Danfoss 134U2988 protected with a coating?

A: This drive is designed with a coated PCB for added electronic protection and durability.


Internal Product Review

  • ‘‘134U2988 is a Danfoss VLT FC 280 midi drive built for dependable motor control in 20 HP and 15 kW applications. The standard control card with Modbus and EMC Cat C1/C2 filtering support clean integration and stable networked operation. A brake chopper and IP20 chassis protection make the unit a strong choice for disciplined panel-based drive systems.’’

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