Yaskawa BUS (blinking) fault code meaning
Yaskawa / BUS (blinking)
Series: L7
Option communication error (warning)
drive
Meaning: A communication error is detected in a mode where the run command or frequency command is set via the communication option card; the connection is open and/or the master has stopped communication
Possible causes
Source: Yaskawa L7 Series Elevator Drive User Manual Fault Diagnosis P268