Miconic HX "you think"...is it a hydro or traction? 36 fault is a drive timeout fault and Safety T1 is first in safety string. For hydro Look at prints for anything before LED1 and "T1",(soft start) check phases and voltages. For traction do same thing but is there any other accompanying faults causing drive to time out and opening up safe circuit? Looking at faults "extra info" may also help.