METHOD AND DEVICE FOR MONITORING THE STARTUP OF AN ELECTRICAL DRIVE

摘要

The invention relates to a method and to a device for monitoring the startup of an electrical drive having a rotating field machine, a pulse inverter and a control unit. The control unit serves to compare the successive speed values during startup of the drive to one another and upon recognition of a non-increase in speed of the rotor shaft to recognize a mix-up of phase lines or impulse encoder lines.