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Bookmark or Share- Problem with NEMA 23 Stepper run by a DM542T driverOriginally, I had wired the system based on the driver documentation for a controller with open-collector signals rather than PNP signals. I had also tried reducing the frequency of the pulses to around 200 Hz after itsmoked's comment, which I thought was safely low enough since the driver was rated for 20 kHz, and I faced the same problems.
- Required contact area for electrical connection - Eng-TipsLooking for some sparky knowledge here. I'm designing some test equipment and need to make sure I have enough contact area to prevent heating a threaded connection beyond the point where it can be reused. We will be running 1000V and 1000A through the connection. The real trick is the duration...
- neplan - Electric power & transmission & distribution - Eng-TipsNeplan users, Could you actually do more than HVDC transmission with converters in Neplan? I'd like to have a decent uncontrolled 6 pulse rectifier connected to a LV bus bar feeding a resistor. b.t.w. Whats is the difference between simple and 3p-converters? Neplan version: 5.2.4
- Error-amp - Circuit design | Eng-TipsNow here comes the question: why does the transfer function start with +180 phase shift (yes, PLUS), then +90 degrees, then at 2 kHz going up again to +135 degrees and finally rests at +90 degrees? And why does the gain start at almost 100 dB? After the first pole there is a zero, then a pole again.
- Mechanical Acoustics/Vibration engineering - Eng-TipsDear bohica,The mV/g is a unit for sensitivity factor relating the voltage output of an accelerometer to the acceleration unit g = 32.3 ft/sec*2 = 386.4 in/sec*2 = 9.81 m/s*2.The mm/s is a unit of velocity (one parameter of vibration parameters, i.e., acceleration, velocity and displacement)Now to convert the acceleration output to velocity reading, you need to know your accelerometer ...
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