In a production line that employs conveyors, expensive mechanical damage is often the result of the conveyor jamming but with the drive motor continuing to run. By installing a current transducer to detect an overload, the drive motor can be prevented from sustaining damages that can grind your system—and ultimately your production—to a complete halt.
Current transducers are devices that contain a coil which can be inductively coupled to the AC input of a drive motor. These devices can provide an output that’s directly proportional to the current being used by the motor. Said output can be used to trigger an alarm or rig a relay to shut the entire conveyor system down in case of a jam.
There are several types of current transducers that you can use in a conveyor system. Among its many types, the split core is arguably the most commonly used, thanks to their ease of installation. You can simply snap split core transducers into place around one of the motor wires, and that’s it; no hard-wire connections needed, no help from third-party contractors required. You may rout the transducer’s output to a PLC- programmed with upper and lower current limits, along with the accompanying motor control functions.