S-6R9009 Reliance Electric Maxitron 9000 Series Regenerative DC Drive

Overview

Key Features

1. Four‑Quadrant Regenerative Operation: Enables motoring and regenerative braking, returning energy to the grid for improved efficiency and reduced operational costs.

2. High Power Rating: Accepts 500 VAC (50/60 Hz) three‑phase input and delivers 520 VDC output at 90 A, suitable for large industrial DC motors.

3. Robust Industrial Construction: Heavy‑gauge metal enclosure, vibration‑resistant components, and enhanced thermal design for reliable operation in harsh environments.

4. Comprehensive Protection: Integrates short‑circuit protection, AC line filter, dv/dt suppression, and electronic motor overload protection to safeguard the drive and motor.

5. Precision Speed and Torque Control: Advanced SCR control circuitry provides smooth acceleration/deceleration, tight speed regulation, and minimal drift under varying loads.

6. Diagnostic and Status Indicators: Front‑panel LEDs display power, run, and fault status for quick on‑site troubleshooting and maintenance.

7. Legacy System Compatibility: Fully interoperable with Reliance Electric AutoMax PLC and DCS 5000 series I/O and control systems, facilitating easy upgrades.

8. Forced‑Air Cooling: Integrated fan system ensures efficient heat dissipation during continuous high‑current operation.

Technical Specifications

• Manufacturer: Reliance Electric (now ABB/Baldor)

• Model: S-6R9009 (alternate P/N: S6R-9009, 847.19.51E)

• Series: Maxitron 9000

• Type: Three‑phase four‑quadrant regenerative DC drive

• Input: 500 VAC ±10%, 50/60 Hz, 95 A

• Output: 520 VDC, 90 A continuous

• Power Devices: Silicon‑controlled rectifiers (SCRs) with gate drive isolation

• Protection: Short‑circuit, overload, overvoltage, undervoltage, dv/dt, and ground fault protection

• Operating Temperature: 0°C to +45°C (+32°F to +113°F)

• Storage Temperature: -20°C to +60°C (-4°F to +140°F)

• Humidity: 5%–95% non‑condensing

• Dimensions: 381 mm × 406 mm × 508 mm (15 in × 16 in × 20 in)

• Weight: Approximately 21.3 kg (47 lbs)

• Enclosure Rating: IP20 (suitable for cabinet mounting)

• Cooling: Forced‑air cooling with integrated fan

Typical Applications

• Metal Rolling Mills: Steel and aluminum rolling stands requiring constant torque and regenerative braking during deceleration.

• Extruders and Wire Drawing: High‑torque, continuous‑speed applications in metal processing.

• Cranes and Hoists: Material handling equipment with frequent lifting/lowering cycles, leveraging regeneration to save energy.

• Mining Conveyors and Crushers: High‑load, continuous‑operation systems in harsh mining environments.

• Paper Machine Drives: Winders, calenders, and reel drives requiring precise speed and tension control.

• Legacy System Upgrades: Direct replacement for older Maxitron S-6R-9000 series drives in existing AutoMax/DCS 5000 installations.

Compatibility and Availability

• Compatible Platforms: Reliance Electric AutoMax PLC, DCS 5000 Multibus I/O, and other legacy Reliance control systems.

• Alternate Part Numbers: S6R-9009, 847.19.51E.

• Status: Original production discontinued; available as refurbished, surplus, or used units from industrial automation suppliers.

• Refurbished Units: Fully disassembled, inspected, component‑tested, calibrated, and load‑tested to meet original factory specifications, with warranty coverage.

Advantages

• High Energy Efficiency: Regenerative braking returns energy to the AC line, reducing power consumption and heat generation.

• Heavy‑Duty Reliability: High current/voltage ratings and rugged design ensure stable operation in demanding industrial environments.

• Minimized Downtime: Comprehensive protection features and diagnostic indicators enable quick fault detection and maintenance.

• Seamless Integration: Compatibility with legacy Reliance systems reduces upgrade costs and integration complexity.

• Cost‑Effective Legacy Support: Refurbished S-6R9009 units provide a reliable, budget‑friendly solution for maintaining aging DC drive systems。