INDUSTRIAL ROBOT CONTROL DEVICE

PURPOSE:To prevent teaching data from being lost due to a power failure accident by providing an uninterruptive power supply for feeding power at least to a CPU and an auxiliary memory at the time of power failure during data transfer between a memory and the auxiliary memory. CONSTITUTION:When a primary power source 15 is interrupted to service, an uninterruptive power supply 14 detects this state and sends a power failure detection signal to a CPU 2 through an input-output port 16. The CPU 2 judges the existence of the power failure signal after the lapse of a fixed time and judges it to be instantaneous power failure if the power failure signal does not exist. Teaching operation is therefore continued. When the power failure detection signal exists at the judging time, however, the CPU 2 sends the message signal of the power failure generated state to a CRT 11 to display this state, then judges whether it is set to the automatic transfer of data and waits for the save command of a keyboard 12 by an operator. On the basis of this command, teaching data in a memory 3 is sent to an auxiliary memory 10.