| 摘要 |
PURPOSE:To quicken the disposal of a trouble by providing plural input connectors respectively connecting a strain detector and by performing the arithmetic means of the load information and the selection of the load information and arithmetic output by each input connector as well. CONSTITUTION:Input connectors 3, 4 are provided respectively for strain gage sensors 1, 2 and amplifiers 5, 6 and peak holding parts 7, 8 are arranged as well. The peak holding parts 7, 8 provide subtraction circuit 7C, 8C and respectively output a virtual peak value signal. Setters 15, 16 set an overload load and set the breaking critical load of a press. Moreover setters 21, 22 set the breaking critical load of a metal die at the measuring point, etc. The integral load is outputted from the motor terminal 14 and in case of the abnormal connection state of a changeover switch 34 a relay contact 31 is forcibly broken. The trouble disposal is thus quickened. |
