Delta Electronics VFD055M21A VFD-M Series Variable Frequency Drive

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Pengilang: Delta Electronics
No. Produk: VFD055M21A
Negara asal:Amerika Syarikat
Jenis Produk: Variable Frequency Drives
Pembayaran: T/T, Western Union
Berat: 3200g
Pelabuhan penghantaran: Xiamen
Jaminan: 12 bulan

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Description

Engineered for high-precision speed and torque regulation in compact industrial systems, the Delta Electronics VFD055M21A micro drive provides versatile sensorless vector control within the reliable VFD-M Series framework. This module delivers robust control characteristics and features built-in Modbus serial communications for seamless integration into distributed control networks. Featuring a highly efficient heat-dissipation design and a user-friendly programming interface, this drive balances heavy-duty performance with a compact physical footprint, making it ideal for automated manufacturing lines, fan networks, and conveying equipment.

Features

Advanced Control Algorithms: Features dual sensorless vector and adjustable V/F curve profiles for high starting torque and precise velocity control.
Broad Carrier Frequency Range: Adjustable carrier frequency from 1 to 15 kHz to minimize acoustic motor noise and optimize system efficiency.
Integrated Communication: Built-in RS-485 communication port supporting standard Modbus RTU/ASCII protocols for clean system integration.
Dynamic Braking: Built-in braking chopper allows direct connection of an external braking resistor for rapid deceleration and stopping.
Automated Tuning: Features intelligent auto-tuning capabilities to match motor winding parameters for optimal torque delivery.

Applications

High-speed packaging and filling machinery requiring rapid acceleration/deceleration.
Conveyor and material handling systems with varying payload demands.
Industrial fan systems and centrifugal pump operations.
Precision woodworking equipment and small machine tool spindles.

Technical Specifications

Manufacturer	Delta Electronics
Model Number	VFD055M21A
Series	VFD-M Series
Rated Output Capacity	3.8 kVA
Rated Output Current	10 A
Maximum Output Voltage	3-phase, proportional to input voltage
Output Frequency Range	0.1 to 400 Hz
Carrier Frequency	1 to 15 kHz
Rated Input Power Supply	Single-phase / 3-phase, 200 to 240 VAC, 50/60 Hz
Input Voltage Tolerance	+/- 10% (180 to 264 VAC)
Input Frequency Tolerance	+/- 5% (47 to 63 Hz)
Cooling Method	Forced Fan Cooling
Net Weight	3.2 kg
Shipping Weight (Calculated)	5.0 kg

Empirical Engineering Insights

Alternative Models & Compatibility

The VFD055M21A is standard within the VFD-M series legacy portfolio. When substituting this unit, closely match the input phase configurations. While this unit can accept both single-phase and three-phase 230V power inputs, utilizing single-phase power requires careful sizing verification of downstream branch protection circuit breakers to handle the higher input line currents (up to 27 A in single-phase applications under high load conditions).

Application Pitfalls & Engineering Notes

Single-phase incoming power subjects the internal DC link bus capacitors to elevated thermal stress and increased ripple current. Ensure that the drive is operated strictly within the rated 10 A continuous output threshold when powered via a single-phase supply. Maintain side clearances of at least 50 mm when panel-mounting multiple drives in close proximity to prevent hot spots from triggering an over-temperature fault (oH).

Commissioning & Wiring Tips

Always route the control signal wires (AVI, ACI, and digital control terminals) through a dedicated, shielded conduit separate from the high-power AC supply input (R, S, T) and motor output (U, V, W) lines. Ensure that control common (GND) is not bonded directly to the frame earth ground; the physical chassis earth terminal must be connected to a dedicated, low-impedance ground point (under 100 ohms) to avoid high-frequency noise interference on analog inputs.

Installation Guidelines

CRITICAL SAFETY WARNING: De-energize all incoming power lines prior to opening the drive wiring cover. After disconnecting supply power, wait a minimum of 10 minutes to allow the DC bus capacitors to fully discharge. Use a reliable digital multimeter to verify that DC voltage between the + and - terminals is under 36 VDC before initiating any installation, terminal tightening, or wiring procedures.

Mount the VFD055M21A drive vertically to a flat, non-flammable backplate within a dust-free, dry enclosure, ensuring adequate clearance above and below for standard convective airflow.

Connect the single-phase (or three-phase) AC input power lines exclusively to terminals R and S (or R, S, T). Never apply mains voltage to the motor terminals U, V, or W, as this will result in immediate and catastrophic module damage.

Route shielded, low-capacitance motor cabling between terminals U, V, W and the motor stator terminals. Ensure both the motor frame and the drive ground terminal are securely bonded to a unified system ground bus.

Verify that all control loop terminations (e.g., potentiometer connections or Modbus communication wires) are secure, replace the cover plate, power up the system, and perform an initial motor auto-tune sequence before applying operational mechanical loads.

Key Features:

#Delta VFD-M Series #Variable Frequency Drives

Can the VFD055M21A drive accept a three-phase input supply?

Yes, although it is designated as a single-phase drive (code 21), it is designed and rated to accept either single-phase or three-phase input power in the 200 to 240 VAC voltage class.

What is the maximum output frequency rating of this VFD?

The drive supports an output frequency range of 0.1 to 400 Hz, making it suitable for high-speed motor and spindle applications.

Does this model have a built-in braking resistor or chopper?

The VFD055M21A features a built-in dynamic braking chopper. It does not contain an internal braking resistor; you must connect an external braking resistor across the B1 and B2 terminals for applications requiring high deceleration rates.

How do I resolve an oC (Overcurrent) fault on startup?

Check the acceleration time parameter and increase it if necessary. If the fault persists, verify that the motor stator windings match the drive rating, ensure the motor cable shield is correctly grounded, and run a motor auto-tune.

Penghantaran Ekspres Global

Penghantaran Standard: 4-6 Hari Bekerja melalui DHL, FedEx, dan UPS.
Penghantaran Ekspres: Penghantaran pada hari yang sama untuk pesanan dalam stok yang dibuat sebelum 2:00 PM (GMT+8).
Liputan Seluruh Dunia: Berkhidmat di lebih 150 negara, termasuk penghantaran pantas ke Arab Saudi dan UAE.

Pemulangan & Jaminan

Jaminan 30 Hari: Pemulangan diterima untuk produk dalam stok dalam pembungkusan asal yang disegel kilang.
Jaminan 12 Bulan: Setiap komponen industri disokong oleh jaminan teknikal profesional kami.

Pesanan diproses dan dihantar Isnin-Jumaat (tidak termasuk cuti umum).

Untuk kelayakan penuh, yuran penyimpanan semula, dan butiran pemulangan antarabangsa, sila lihat rasmi kami Polisi Pemulangan & Pengembalian Wang .

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Pengetahuan teknikal

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Delta Electronics VFD055M21A VFD-M Series Variable Frequency Drive