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The Reliance Electric 800-372-7402-AVS-1700-ACX is a high-performance Adjustable Frequency Drive (AFD) from the renowned AVS (Adjustable Vector System) series, engineered for precision control of large industrial AC motors up to 1,700 Amps. Designed for mission-critical applications requiring dynamic torque response and energy efficiency, this drive leverages advanced vector control algorithms to deliver exceptional speed regulation (±0.01% of base speed) even at low frequencies. The Reliance AVS-1700-ACX integrates seamlessly with industrial networks via embedded communication options (including Ethernet/IP and Modbus TCP), enabling real-time monitoring and control in complex automation systems. Its modular design supports redundant cooling systems and optional harmonic mitigation, making it ideal for heavy industries where operational continuity and power quality are paramount.
Built to withstand harsh environments, the 800-372-7402-AVS-1700-ACX features NEMA 1 or NEMA 12 enclosures with corrosion-resistant coatings, ensuring reliability in steel mills, mining sites, and chemical plants. The drive’s adaptive control architecture automatically compensates for load inertia variations, preventing torsional vibrations in high-inertia applications like conveyors or compressors. With integrated diagnostics and predictive maintenance tools, the Reliance Electric AVS-1700-ACX minimizes unplanned downtime while optimizing energy consumption across its 480V–690V operating range.
RELIANCE 800-372-7402-AVS-1700-ACX
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 800-372-7402-AVS-1700-ACX |
| Manufacturer | Reliance Electric (Rockwell Automation) |
| Product Type | AC Vector Drive |
| Rated Output Current | 1,700 A |
| Output Power Range | 1,200–1,800 kW (at 480V) |
| Input Voltage | 3-Phase, 380V–690V AC (±10%) |
| Output Voltage | 0–Input Voltage (Sensorless Vector) |
| Control Method | Flux Vector Control (FVC) |
| Frequency Range | 0–600 Hz |
| Overload Capacity | 150% for 60 sec, 200% for 3 sec |
| Efficiency | >98% (at full load) |
| Communication | Dual Ethernet/IP, Modbus TCP, DeviceNet (optional) |
| Enclosure Rating | NEMA 1/12 (Standard) |
| Cooling Method | Forced Air (Redundant Fans Optional) |
| Ambient Temperature | 0°C to 40°C (32°F to 104°F) |
| Dimensions (W×H×D) | 1,200 × 2,200 × 800 mm (approx.) |
| Certifications | UL, CE, cULus, ISO 13849-1 |
Main Features and Advantages
Precision Vector Control: The Reliance AVS-1700-ACX utilizes adaptive flux vector algorithms to achieve ±0.01% speed accuracy without encoder feedback, enabling precise torque control for crushers, extruders, and high-inertia fans. Auto-tuning identifies motor parameters in<2>
Robust Power Design: Multi-level IGBT topology reduces harmonic distortion (THiD<3>800-372-7402-AVS-1700-ACX supports 18-pulse rectification for IEEE 519 compliance in sensitive grids.
Intelligent Diagnostics: Real-time monitoring of IGBT junction temperature, bus voltage ripple, and load profiles via embedded web server. Predictive algorithms alert users to capacitor aging or fan degradation 30+ days before failure. Event logs with time-stamped fault records accelerate root-cause analysis.
Modular Scalability: Hot-swappable control cards (Reliance 800-372-7401-CC) and power stacks enable<30>
Application Field
The Reliance Electric 800-372-7402-AVS-1700-ACX excels in heavy industries demanding high torque and fault tolerance. In Metals, it drives rolling mill main stands (1,500–5,000 HP), solving strip tension control challenges via torque coordination between multiple drives. Mining operations deploy it for 5,000 t/h conveyor systems, where its anti-jerk algorithms prevent belt slippage during loaded starts.
Water treatment facilities leverage the AVS-1700-ACX for 1 MW pump control in deep-well applications, utilizing its low-speed torque capability to avoid water hammer. In Cement production, it powers kiln exhaust fans (800–1,200 kW), reducing energy use 25% via automatic PID optimization. The drive also anchors compressor stations in oil/gas pipelines, providing soft-start capability for 10,000 HP synchronous motors while meeting API 541 standards.
Related Products
Reliance AVS-1200-ACX: Lower-current variant (1,200 A) for 600–900 kW applications.
800-372-7401-CC: Hot-swappable Control Card for AVS-1700-ACX, storing parameters for rapid replacement.
Reliance 57C460: HIM (Human Interface Module) with multilingual graphical display for drive programming.
Reliance 800-372-7403-HF: 18-Pulse harmonic filter kit for IEEE 519 compliance.
Rockwell 2094-BC07-M: GuardLogix safety controller for SIL 3 integration with AVS-1700-ACX.
Reliance 800-372-7405-RPS: Redundant Power Supply module for critical processes.
Reliance FlexPak 3000: Next-generation successor with enhanced cybersecurity features.
Reliance 800-372-7404-CT: High-accuracy current transducer kit for closed-loop control.
RELIANCE 800-372-7402-AVS-1700-ACX
Installation and Maintenance
Pre-installation preparation: Verify foundation strength (>1,500 kg/m² load capacity) and clearance (≥300 mm side/top for airflow). Perform insulation resistance tests on motor/generator cables (≥100 MΩ at 1,000V DC). Configure input transformer taps to match grid voltage (e.g., 480V ±2%). Calibrate Reliance 800-372-7402-AVS-1700-ACX control parameters using DriveTools SP software before energizing.
Maintenance recommendations: Quarterly cleaning of air filters/heat sinks with compressed air (≤30 psi). Annually measure DC bus capacitor ESR (replace if >50% increase from baseline). Monitor IGBT thermal pads via IR camera during operation (investigate >10°C delta between phases). Update firmware during planned shutdowns using Reliance’s DriveServices toolkit. Maintain vibration logs for cooling fans to preempt bearing failures.
