VFD17AMS23ANSAA DELTA MS300 Series Standard Compact Drive 3.7 kW

Product Overview

The VFD17AMS23ANSAA (VFD17AMS23ANSAA) is a high-performance, standard compact vector control drive from Delta’s advanced MS300 series. Delivering a robust 3.7 kW (5 HP) output, this drive is engineered to meet the needs of modern industrial applications that demand both space efficiency and high-level safety. Despite its remarkably small footprint, the VFD17AMS23ANSAA supports both IM (Induction Motor) and PM (Permanent Magnet) motor control. A standout feature of this model is the built-in Safe Torque Off (STO) function, which complies with global safety standards (SIL2/PLd), making it an ideal choice for high-speed spindles, woodworking machinery, textile machines, and packaging equipment where operator safety and machine footprint are critical.

Technical Configuration

The VFD17AMS23ANSAA is designed for a 230V three-phase environment and features a dual-rating design: Normal Duty (ND) at 19.5A and Heavy Duty (HD) at 17A. This allows engineers to optimize the drive's performance based on the specific torque requirements of the load. The drive supports a high carrier frequency of up to 15 kHz, ensuring quiet motor operation. For communication, it includes a built-in RS-485 (Modbus) interface and a USB port for rapid parameter configuration and firmware updates via Delta's software. The "ANSAA" designation indicates a standard model with an IP20 rating, focused on core drive functionality without integrated EMC filtering, allowing for a more compact and cost-effective installation in filtered electrical cabinets.

Technical Specifications

Technical FAQs

What is the benefit of the built-in STO (Safe Torque Off) function?The STO function is a hardware-level safety feature that immediately cuts power to the motor's gate drivers without needing to disconnect the main power to the drive. This ensures the motor cannot generate torque, allowing for safe human intervention (like clearing a jam) while keeping the drive powered and ready to resume, significantly reducing restart times compared to traditional safety contactors.

Can this drive run Permanent Magnet (PM) motors?Yes. Unlike many compact drives in this class, the MS300 series—including the VFD17AMS23ANSAA—features advanced control algorithms for both standard induction motors and high-efficiency permanent magnet motors. This allows for future-proofing your equipment should you upgrade to more energy-efficient motor technology.

Why is there "No EMC function" in this specific model?The "AN" code indicates the absence of an internal EMC filter. This makes the drive physically smaller and lighter (only 1.24 kg). This model is intended for use in environments where an external system-wide filter is already present, or in applications where electromagnetic interference is not a primary concern, providing a more economical hardware solution.

Engineering & Installation Guide

• Safety Wiring (STO): When utilizing the STO function, ensure the safety circuit is wired to the S1, S2, and +24V terminals. If the safety function is not required, the factory-installed jumpers must remain in place for the drive to operate.

• Heat Dissipation: The MS300 series features a "side-by-side" mounting capability to save cabinet space. However, for a 3.7 kW unit under heavy load, ensure there is adequate vertical clearance (at least 50 mm) to allow the internal cooling fan to exhaust heat effectively.

• Parameter Backup: Use the integrated USB port to connect to a PC. With Delta’s DIASelector or VFDSoft software, you can backup parameters, monitor real-time performance, and perform auto-tuning for the 3.7 kW motor, which is essential for achieving optimal vector control performance.