Alcatel 8220 CTT 450 Turbo Pump Controller

The Alcatel 8220 CTT 450 (model number 127821) is a dedicated controller for high‑vacuum turbomolecular pumps, designed to provide precise speed control and robust protection in demanding industrial and research environments. This unit converts standard AC mains into a variable‑frequency output that drives the pump motor, enabling rapid acceleration, stable operation, and extended pump life. It is widely used in semiconductor manufacturing, thin‑film coating, mass spectrometry, and vacuum metallurgy.

Overview

The 8220 CTT 450 controller is part of Alcatel’s trusted turbo pump controller family. It features a compact, rack‑mountable chassis with a user‑friendly front panel for local monitoring and control. The controller supports a variety of Alcatel turbomolecular pumps (e.g., ATH, ATP series) and can be configured for different motor types. It includes comprehensive protection against over‑current, over‑temperature, and under‑voltage conditions, as well as a standby mode for energy savings.

Key Features

• Variable frequency drive with soft‑start and adjustable acceleration/deceleration ramps

• Speed range: 20,000‑90,000 rpm (pump‑dependent)

• Integrated over‑current, over‑temperature, and under‑voltage protection

• RS‑232/RS‑485 serial interface for remote monitoring and control

• Analog input (0‑10 V) for external speed setpoint

• Relay outputs for pump running, ready, and fault signals

• Front‑panel LED indicators for power, run, and alarm

• Compact 19‑inch rack‑mountable 3U chassis

Technical Specifications

• Input Voltage: 200‑240 VAC, 50/60 Hz, single phase

• Output Power: Up to 500 VA

• Output Frequency: 400‑1000 Hz (programmable)

• Speed Stability: ±0.5% of setpoint

• Communication: RS‑232 (9600 baud) or RS‑485 (optional)

• Analog Input: 0‑10 V, impedance 10 kΩ

• Relay Outputs: 2x SPST, 24 VDC/1A

• Operating Temperature: +5°C to +40°C

• Dimensions: 132 mm (H) × 483 mm (W) × 280 mm (D) – 3U

• Weight: 5.5 kg

Applications

The controller is used with Alcatel turbomolecular pumps in processes requiring high and ultra‑high vacuum, such as sputtering, evaporation, ion implantation, and electron microscopy. Its remote interface enables integration into automated production systems.

Installation and Operation

Install the controller in a rack or on a bench, connect the pump motor cable, mains power, and any control signals. The unit automatically identifies the pump type and loads optimal parameters. Users can adjust speed, ramp times, and standby speed via the front panel or remote commands.

Maintenance

Regular maintenance includes checking ventilation, cleaning dust filters, and monitoring fault logs via the serial interface. The controller provides self‑diagnostic capabilities and alerts for abnormal conditions.

Conclusion

The Alcatel 8220 CTT 450 turbo pump controller delivers reliable, precise vacuum pump control, ensuring consistent performance in critical applications.