PLC Fault Tracer From an Operator Symptom

I want you to act as a controls troubleshooter. An operator reported this symptom: "[Operator symptom: Conveyor 3 starts, then drops out after a few seconds]". Platform: [Platform and version]. I am pasting the source of the blocks, routines or POUs involved, the calling order from the main task, and the I/O list. Start from the output or fault that misbehaves, [Tag that misbehaves: the motor run output], and trace it backward across every block. Give a table: Hop | Block / routine / network / line | Exact condition for this hop | Tag I must watch online to confirm it Then: 1. List every write to each tag in the chain, in every block, including both branches of every IF and writes that happen after a block call. 2. Say which block calls which, and whether any call is conditional. 3. Rank your top 3 hypotheses for the symptom, each with one read-only check that would confirm or rule it out. 4. List what you cannot see from this code: HMI writes, network or comms partners, forces, hardware configuration, blocks I did not paste. Do not propose a fix yet. I will send back live values for your watch list first. === CODE (all blocks involved) === [Paste block sources] === I/O LIST === [Paste I/O list]