Hello! I am new to robotics and I have some problem getting started with my IRB 2000-2480. The drive unit is an M93 control system S3. When I try to start the robot - and push motors on, I get the following error message 536 34 and 21. According to the error list documentation 536 34 means that: An attempt has been made to start up with un-defined commutating offset. Remedy is: Define the commutating offset. I don't know how to do that, or even what it means. Could anyone explain in simple terms how I should proceed. The error 536 21 means that: A break in the enable loop. Several alternatives can be the cause: A a driver unit has been tripped because of over current. B The supply unit or rectifier has tipped. C Fault in the server computer. I don't know which of these it could be, and even if a remedy is offered for each one of them, I don't know what to do. I would be greatful for any help and suggestions. Best regards Carl