Delta VFD17AMS43EFSAA Variable Frequency Drive 7.5kW 17A

Product Overview

The Delta VFD17AMS43EFSAA is a high-performance member of the MS300 series, Delta's premier line of compact, standard vector control drives. This specific unit is tailored for 480V three-phase industrial grids, delivering a consistent 7.5 kW (10 HP) of power. With a net weight of approximately 2.50 kg (5.51 lbs), the VFD17AMS43EFSAA offers an exceptional power-to-size ratio, providing a rated output current of 17 A to drive demanding industrial motors with precision and ease.

Core Technical Advantages

Operational economy is a major benefit of the VFD17AMS43EFSAA. It features an ultra-low standby power loss of only 8 W, making it one of the more energy-efficient drives in its class. Built for reliability, it maintains a maximum operating temperature of 40 °C. The drive's advanced architecture ensures that power losses are minimized across all load conditions; even at 90% frequency and full 100% current, the relative power loss remains below 2%, ensuring that the unit runs cool and reduces the cooling load on your electrical cabinet.

Technical Specifications

Efficiency & Load Performance

The VFD17AMS43EFSAA is designed for high-efficiency throughput. Below is the detailed power loss profile based on operational frequency and current load:

• 100% Load Performance: Power loss is 213.4 W at 0% frequency, rising to 251.8 W at 90% frequency.
• Partial Load (50% Current): Efficiency remains high at half-load, with losses between 147.9 W and 163.1 W.
• Low Load (25% Current): At quarter-load, the drive is highly efficient with a relative power loss of only 1.0%.

Installation & Engineering Guide

To ensure optimal performance of the VFD17AMS43EFSAA, mount the drive vertically to take advantage of natural airflow, supplemented by the internal cooling system. It is designed for 380-480V AC inputs and includes an integrated STO (Safe Torque Off) function to enhance machine safety. The MS300 series supports a variety of communication cards, including EtherCAT, Profibus, and DeviceNet, making it easy to integrate into existing industrial networks. For applications involving high-speed switching, use shielded cables to maintain signal integrity and comply with EMC standards.

Engineering Advantages

The Delta MS300 series provides versatile motor control, supporting both Induction Motors (IM) and Permanent Magnet Motors (PM). The VFD17AMS43EFSAA features a built-in PLC for basic logic programming, which can often eliminate the need for an external micro-PLC in simple automation tasks. Its compact dimensions allow for side-by-side installation, maximizing cabinet space. High-speed pulse inputs and a built-in USB port for quick configuration make it a favorite for system integrators in the textile, food packaging, and machine tool industries.

Technical FAQs

Q1: What is the benefit of the 13 kVA apparent power rating?
A1: The 13 kVA rating indicates the total electrical capacity the drive can supply, covering both the active power (kW) and reactive power required by the motor's magnetic field.

Q2: Can this drive operate in high-humidity environments?
A2: Yes, provided the environment is non-condensing. For extreme conditions, ensure the drive is housed in an appropriately rated (IP66/NEMA 4X) enclosure.

Q3: Does the VFD17AMS43EFSAA support high-frequency output?
A3: Yes, the MS300 series can support high-speed models capable of reaching up to 599 Hz or 1500 Hz depending on the firmware version, suitable for high-speed spindle applications.