178B0765

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The 178B0765 is part of the VLT 5000 Frequency Converters and features an output frequency range of 0-1000 Hz. Manufactured by Danfoss, this model belongs to their VLT 5000 series, boasting 100% earth fault and short-circuit protection. It includes fieldbus options like ModBus RTU and an EN 55011 1A RF filter.

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Wake Industrial Warranty

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Product Description:

Danfoss’ 178B0765 from VLT 2800 identifies the product family and clarifies compatibility with the VLT 2800 drive ecosystem which streamlines parts matching and firmware alignment. The power range (3ph 380-480v) of 0.55-18.5 kW defines the three-phase output band and allows selection across a broad set of medium duty motors. Also, this power range (1&3ph 200-240v) of 0.37-1.5 kW sets the lower supply options and supports compact single or three phase installations for small drives.

The module comes with another variation in power range (3ph 200-240v) 2.2-3.7 kW which specifies the midrange three phase sizes and guides motor coupling decisions. Moreover, it offers input voltage range of 380-480 V ±10% (3PH); 200-240 V ±10% that determines supply tolerance limits and informs transformer and breaker selection. The input frequency 50/60 Hz adjusts mains timing requirements and dictates control parameter defaults. Output frequency of 0-1000 Hz provides a wide control span and enables high speed or low speed process control. Featuring a short circuit protection defines the drive’s resilience to fault currents and reduces the need for external protection in specified configurations. Also, the 100% earth fault protection indicates integrated ground fault detection. Its enclosure cold plate technology and dust/dirt/humidity resistant offers improved thermal conduction.

This 178B0765 unit appears with control inputs 24V incremental encoder, AB encoder which supports closed loop feedback and position control. Fieldbus options DeviceNet, ModBus RTU, Profibus DP, Metasys N2 provide multiple network choices for PLC integration and remote diagnostics. The inclusion of RFI/EMC filter, built-in < filter reduces conducted emissions and simplifies compliance with EMC limits. Its mounting side-by-side, vertical or horizontal, permits flexible cabinet layout and maximizes panel density. The ramp times 0.05-3600 sec allow precise acceleration and deceleration programming for process matching. Finally, the output voltage with 0-100% of supply voltage delivers full motor voltage range and the rated motor voltage options include standard nominal voltages too.

Control Inputs
24 V incremental encoder, AB encoder
Earth Fault Protection
100% earth fault protection
Enclosure
Cold plate technology, dust/dirt/humidity resistant
Fieldbus Options
DeviceNet, ModBus RTU, Profibus DP, Metasys N2
Input Frequency
50/60 Hz
Input Voltage Range
380-480 V ±10% (3PH); 200-240 V ±10%
Mounting
Side-by-side, vertical or horizontal
Output Frequency
0-1000 Hz
Power Range (1&3ph 200-240v)
0.37-1.5 kW
Power Range (3ph 200-240v)
2.2-3.7 kW
Power Range (3ph 380-480v)
0.55-18.5 kW
Product Series
Danfoss VLT 2800
Rfi/emc Filter
Built-in EN 55011 1A filter
Short Circuit Protection
100% short-circuit proof

Frequently Asked Questions about 178B0765:

Q: What power band does 178B0765 support for 3-phase 380–480 V systems?

A: The unit supports a power range of 0.55-18.5 kW and that range determines allowable motor sizes for continuous operation.

Q: Which power range applies to 1-phase or 3-phase 200–240 V units of 178B0765?

A: The relevant rating is 0.37-1.5 kW and it sets the maximum continuous load on lower voltage supplies.

Q: What midrange three-phase power does 178B0765 cover on 200–240 V supplies?

A: The midrange specification is 2.2-3.7 kW and it informs drive pairing for medium duty applications when balancing load distribution in multi-drive cabinets.

Q: What mains frequency does 178B0765 require?

A: The module comes with an input frequency of 50/60 Hz which establishes timing for control loops and parameter defaults.

Q: How does the input voltage tolerance for 178B0765 affect supply design?

A: The input voltage range for this frequency converter unit is 380-480 V ±10% (3PH); 200-240 V ±10%. It defines allowable supply variation for stable operation.


Internal Product Review

  • ‘‘178B0765 is the high quality frequency converter among industrialists as it integrates cold plate technology for enclosure cooling. This reduces thermal stress in compact cabinets. The drive sustains rated operation under continuous load. Service intervals match industry norms and component replacement follows standard procedures.’’

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