Polatech 76EMC Scale is an industrial linear scale/encoder assembly used for precise position measurement in heavy‑equipment or machine tooling applications. Common failure modes include loss of signal due to damaged contact pads, corrosion on the encoder contacts, misalignment of the scale housing, and power supply voltage drops that trigger the internal protection circuitry. First‑check diagnostics: verify 24 V DC supply continuity and proper voltage at the encoder terminals; inspect the scale surface and mounting for physical damage or debris; review any error codes from the host controller (e.g., “ENC_ERR” or “VOLTS_LOW”) to pinpoint whether the issue is electrical or mechanical.[oss-gpt-20b]