The official manual provides:

Palfinger has established itself as a global leader in hydraulic lifting systems, largely due to its integration of sophisticated electronic control systems. At the heart of these systems—such as the PALTRONIC 50 or 150—lies a complex diagnostic framework. This framework translates mechanical and electrical irregularities into a standardized language: error codes. Far from being mere technical hurdles, these codes are the primary interface between the machine’s internal logic and the operator’s safety. The Architecture of Diagnostics

Case study: In 2021, a logistics operator ignored an code on a PK 16502. The manual clearly stated "continuous operation prohibited." The operator continued lifting, the crane failed to limit the radius, and a 4-ton load swung into a warehouse wall. The repair cost exceeded $45,000.