What is noise? “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 […]
Detection and shielding of noise in stepper motor systems Read More »
The impact of electrical noise in a system is greatly reduced by following a few basic practices:Signal cabling should be 22 AWG, shielded twisted pairs. Provide adequate strain relief for all cables. Minimum cable bend radius = 4 x cable diameter. Cut the shield at the I/O device end, leave floating. Connect the shield at
Design variations between products Sinking I/O Sinking: 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. Sinking input Sinking output Sourcing I/O Sourcing :A sourcing device provides the power or a positive potential to an I/O point.
The capabilities of the different stack length motors are often confusing to people specifying them and designing them into systems. The best way to think of the capabilities of the different stack lengths of a particular frame size is to think of the trade-offs. The smaller MDrive stack length has lower torque that persists to
Since there are so many variables affecting MDrive running temperature, it is difficult if not impossible to accurately predict thermal performance in a particular application. For this reason, the Liberty* MDrive and many other servo and stepper drives are designed so that they can produce more power than they can handle from a thermal point
