The MDrivePlus Motion Control products represent significant improvements over the legacy MDrives. Based on new patented technology, they feature a richer software command set, improved current control, and enhanced thermal dissipation.
Along with these improvements, there may be situations where the MDrivePlus are not “drop-in replacements” for existing legacy MDrives. Some customers may have software that will not run on MDrivePlus units without syntax modifications. There may be timing differences in some command executions that could affect system response. Additionally, it is recommended that customers with close tolerance or clearance situations study the mechanical drawings for the MDrivePlus units.
“Noise” or “Interference” consists of unwanted electrical signals which superimposes on and masks the desired signal. Designing a control system is challenging enough, but designing a control system that has noise immunity adds a whole other dimension. Ideally, you want the noise-to-signal ratio to be as small as possible. Noise is always present in a system that involves high power and small signal circuitry. The key is to manage the noise so that it does not interfere with the performance of the system at hand.
The output setup (Os) command is used to set the functionality of the outputs. The parameters define the output point to be configured, the desired functionality, and the active control state high or low.
The input setup (Is) command is used to set the functionality of all inputs, digital and analog. The parameters define the input point to be configured, the desired functionality, and the active response state high or low.
A sourcing device provides the power or a positive potential to an I/O point. Sourcing devices ‘push’ the current through the load. Other terms used to describe sourcing devices include PNP, Open Emitter, Normally Low, and IEC Positive Logic.
Note that sourcing outputs are only available on Motion Control devices equipped with Plus2 expanded features.
For this part of the tutorial we will use the same hardware configuration examples as was used in the Connecting Power and I/O tutorial to show the configuration of I/O points to various I/O uses.
A sinking device provides a path for the current to ground. Terms used to describe sinking devices include NPN, Open Collector, Normally High, and IEC Negative Logic.
For this part of the tutorial, we will use the same hardware configuration examples as was used in the Connecting Power and I/O tutorial to show the configuration of I/O points to various I/O uses.