Atlas Copco 1626850003 XC2003 Controller Panel (1626‑8500‑03)

The Atlas Copco 1626850003, also designated 1626‑8500‑03 and known as the XC2003, is a modern controller panel designed for Atlas Copco stationary and portable air compressors. This panel provides comprehensive monitoring, regulation, and protection functions through a user‑friendly interface featuring a high‑visibility graphic display and tactile keypad. The XC2003 is engineered to deliver precise pressure control, energy efficiency, and reliable fault diagnostics, making it suitable for a wide range of industrial applications.

Panel Design and Construction

The controller is housed in a robust metal enclosure with an IP54 front rating, protecting against dust and moisture. The front panel features a backlit LCD display (128x64 pixels) and a 16‑key membrane keypad with positive tactile feedback. All wiring connections are made via clearly labelled terminal blocks on the rear. The panel is designed for flush mounting in a control cabinet door with a standard cut‑out of 185 x 135 mm.

Display and User Interface

The graphic display shows real‑time operating parameters: discharge pressure, air temperature, motor current, running hours, and maintenance reminders. Alarm messages are displayed in plain text with specific error codes. The interface supports multiple languages and allows operators to adjust pressure setpoints, change operating modes, and configure timers.

Technical Specifications

• Supply Voltage: 24 VDC (from internal transformer or external supply)

• Display: Graphic LCD, 128x64, white LED backlight

• Keypad: 16 keys, membrane, >1 million cycles

• Digital Inputs: 8 isolated (24 VDC)

• Digital Outputs: 6 relay (2 A @ 250 VAC)

• Analog Inputs: 4 configurable (Pt100, 0‑10 V, 4‑20 mA)

• Analog Outputs: 2 (0‑10 V)

• Communication: RS‑485 Modbus RTU, optional Ethernet

• Memory: 2 MB flash for firmware and logs

• Operating Temperature: -10 °C to +55 °C

• Protection: IP54 (front), IP20 (rear)

• Dimensions: 240 x 180 x 75 mm

Control and Regulation

The XC2003 manages load/unload cycles with adjustable hysteresis, soft‑start sequencing, and multi‑compressor coordination (up to 4 units). A sleep mode automatically stops the compressor during no‑demand periods, reducing energy consumption.

Protection and Diagnostics

Features include high‑temperature shutdown, low oil pressure alarm, motor overload detection, phase monitoring, and emergency stop. The log stores the last 200 events with timestamps.

Applications

Suitable for manufacturing, mining, and construction, the XC2003 ensures reliable and efficient compressor operation with minimal operator intervention.

Conclusion

The Atlas Copco 1626850003 XC2003 control panel is a reliable, feature‑rich solution for modern compressed air management.