EOT Crane Electrical Synchronization

I need a proven method to bring the traveling and hoisting drives of an EOT crane into perfect electrical synchrony so that both ends move at identical speeds under every load condition. The core objective is speed-matching; everything else—position alignment or load sharing—follows once the motors stay locked together without hunting or drift.

Please outline, in a detailed project proposal, how you would:

• Sense real-time motor speed (encoder, tachogenerator, or another reliable feedback device).
• Close the loop through the existing VFD/PLC or recommend a replacement architecture if required.
• Handle calibration, fault detection, and re-synchronization after an emergency stop.
• Supply wiring diagrams, parameter tables, and the logic code (Siemens, Schneider, or any platform you propose).
• Guide onsite commissioning and final acceptance tests.

Your proposal should reference comparable crane or heavy-duty drive projects you have already synchronized, note the expected time frame for engineering and remote support, and flag any special hardware you would need me to procure in advance. I will shortlist only those bids that arrive with a clear step-by-step methodology and an acceptance-test plan tied to speed-matching tolerances.