text: <s>[INST] Auto-tune a 1336+II powering two identical motors Hi! We're using a 1336+II on an overhead crane and we'd like to autotune it. We understand we need to disconnect the load, but can we autotune with both motors connected or do we need to autotune each motor individually? Thanks Patrick [/INST] As far as I know, using autotune and vector control with multiple motors isn't a good practise, more than one motor connected will give wrong data to the drive and cause the control to output less than optimum currents to the motor. With multiple motors, volts per hertz mode is recommended. I suggest also to take a look to this document, it is quite old and prepared for the 1336 Plus, but I think it could help anyway. - fuzzy logic \\n </s>