A portable operation panel having a vibration motor configured to tactually provide information to an operator, and having a configuration capable of rapidly and accurately detecting a structural damage or deterioration of the vibration motor. The operation panel has a controlling section configured to control the behavior of the operation panel; a vibration generating unit capable of vibrating ata natural frequency of the operation panel; a vibration detecting unit configured to detect the vibration and/or acceleration of the operation panel; and an inputting section to which the operator can input information. The controlling section judges that the operation panel has an abnormality, when a vibrational amplitude of the operation panel detected by the vibration detecting unit, during the vibration generating unit vibrates at the natural frequency, falls below a predetermined threshold.