Lauer LCA 285 PLC Controller

Lauer LCA 285 is a compact PLC controller with an integrated 24‑VDC text display and membrane keypad used for operator interface in industrial automation systems. Common failure modes include power‑supply board degradation (brown‑out or over‑voltage), keypad membrane wear leading to ghost keys, LCD backlight failure, and firmware corruption causing error codes such as “E01” or “E02”. First‑check diagnostics: verify 24 VDC input with a multimeter, inspect the power supply PCB for burnt components or loose solder joints, test each key on the keypad with a continuity tester, and review the controller’s diagnostic LEDs or serial log for error codes.[oss-gpt-20b]

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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

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