Classic 1900070008 Elektronikon Mark III Controller Panel For Atlas Copco Screw Compressor

Product Introduction
Proven compressor control and clear local readouts come from this Elektronikon brain. 1900070008 (1900-0700-08) is a Mark III LLR controller panel for Atlas Copco small screw air compressors. It runs automatic start/stop and load/idle logic, monitors network pressure, airend temperature and run hours, drives relay outputs for motor and valve, and talks to plant systems via CAN bus (Modbus/Profibus optional).
Aging units show blank LCD, keypad dead, lost parameters, relay contact wear, false alarms, or no-start. During replacement: cut 24VAC supply, photo all connectors, swap the old 1900070008, restore wiring exactly, power on, reload machine parameters by serial, verify pressure/temp/readings. Match Mark III generation and cutout; program may need technician setup.
Also called computer board, Elektronikon regulator, HMI controller, GA-class brain.