Power monitoring device TC series

vibrationmeasurementPROFIBUS

The Techna-Check® model TC-USB is a Tool Monitoring system designed to use our PWM-TTBUS series power transducers to measure true power on a machine spindle or axis motor. It can be used on standard motors, AC servo motors and variable frequency drives. The Techna-Check determines if there is a Broken, Dull or Missing tool. The system also has the capability to interface with an accelerometer to measure vibration on a spindle or fixture and verify it is within a set range. • USB interface for simple and reliable connection to PC • Monitors 1-128 tools or cutting processes per motor • 1-20 motors can be connected to a single TC-USB device • Optional Profibus compatibility • Parameter setup is done using TTMON software • Independent limits for Break, Blunt, Missing and Idle supervision • Curve enveloping feature for limits • Touch Point limit used for grinding and balancing machines The TC-USB interfaces to the machine control using 24vdc I/O or Profibus. A single TC-USB unit can monitor up to 20 different motors/machines and each machine can have 128 different tools or cutting paths monitored. The tool selection is done using binary inputs through the I/O100T module which are typically given from M-codes/Marco I/O or by using Profibus without the I/O100T. Once the unit has been told to monitor, the system will measure the power that is used just to turn the spindle; this is labeled as the idle consumption (figure 1). High and low limits can be set for the idle power to determine if a belt has broken or bearings are going bad in the spindle.