Wladimir PoljakovIndustrial Automation SpecialistCase No. 04 · Drive diagnostics
Troubleshooting of a CAN bus error and recommissioning of a printing press after two months of downtime.
to restart the machine
01 / The initial task
The Rapida 75 printing press had been stopped for more than two months due to a permanent CAN bus communication fault. When the customer contacted me, there was little hope for a quick restart: several specialists had already been on site, various assemblies had been replaced, but the fault remained.
02 / My scope of work
Complete diagnostics of the control system and CAN bus network
Checking the Lenze frequency drive
Searching for the fault source in the main drive circuit
Removal of the communication board
Cleaning the board and restoring electrical contacts
Machine test run
03 / Result
POLJAKOV AUTOMATION / NEXT STEP
Every plant has a different starting point. A short description helps establish the next useful technical step.
