Method and device for checking a speed system of a motorised device

摘要

The method involves checking whether a speed signal is applied to a primary input (E1) of the control device (100). The test signal is outputted at an output (A) of the control device to the speed system if the speed signal is not applied to the primary input of the control device. The fault in the speed systems (10,20,50) is identified if the test signal is not sensed at the primary input of the control device. The motor-driven apparatus (30) is switched on, and the motor current signal of the motor-driven apparatus is detected. Independent claims are included for the following: (1) computer program product for checking speed system of motor-driven apparatus; and (2) device for checking speed system of motor-driven apparatus.