| 摘要 |
This torque control is a system that controls and monitors the power delivered to a tool without the use of a torque transducer. By monitoring the amount of power being delivered to the tool, a control is able to calculate the amount of torque the tool is generating. This torque system includes a controller, microprocessor, variable frequency drive (VFD) and a power tool. The control is the heart of the system. It is responsible for communicating with the VFD and tool. As the user operates the switches on the tool, the control dictates the frequency at which the VFD will run the tool. While the tool is running, the control also monitors the amount of current that the VFD is providing the tool. For every frequency that the VFD uses to stimulate the tool, the microprocessor can calculate the torque the tool is providing.
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