| 摘要 |
PROBLEM TO BE SOLVED: To provide an inverter device, a liquid supply device, a material transport device and electrical apparatus in which a motor can be driven in a required operational state with simple configuration.SOLUTION: The inverter device includes: a detection section for detecting a physical quantity related to the torque of a motor; a setting section for setting a plurality of different prescribed values in the physical quantity and a plurality of prescribed frequencies corresponding to the prescribed values, respectively; a specification section for specifying the operation characteristics defined by the prescribed values thus set and a plurality of sets of prescribed frequencies; and a control section for controlling to operate at an operation frequency corresponding to the physical quantity thus detected, on the basis of the operation characteristics thus specified. |
