We are having a problem with a Bosch HSL wraper machine. The problem is that there are two servo motors that work together and they are controlled by a rexroth indra drive and a plc alen bradley 5000. So here is the situation, they work fine if you run the machine on slow speed but if you raise the speed the machine stop due to a motor position error. We verify the gears for both motor, the encoder wires, the motor itself and everything looks normal. If you have any advise i will apreciated.