| 摘要 |
PROBLEM TO BE SOLVED: To perform the optimum operation suitable for the load condition of an inverter without providing any complicated peripheral circuits by dispensing with a speed command input terminal of the inverter. SOLUTION: When the speed of the operation is set in advance from a console CONS according to the load condition by an inverter INV, the set data are stored in the memory in a microcomputer MCU, and the operation program is stored. The load condition of the inverter is detected by current detecting means CT1, CT2, and incorporated in the microcomputer MCU. The inverter is provided with FW and COM terminals as the operation command input terminal, and the operation is started by inputting the signal therein. The inverter itself determines the pattern for the operation according to the load condition, and the full automatic operation is performed only by connecting an external operation command means to the starting command terminals FW and COM terminals. |
