hardware defect is reported on powerup indicating problem on interbus, most likely DSE board. DSE uses Interbus is used to communicate with RDC and drives. only have Basic Xpert so cannot help with message. last document that listed messages only went to 6500 or so.
flashing green light on DSE is normal.
fast flashing of two red LEDs on KPS is normal. when there is an EStop they show different state and stop flashing.
so how many robots you got there? any chance to swap some hardware?
you can also try DSE-RDW tool to look for anomalies.