Snubbing a relay coil is simple, given that the direction of the current is always constant. Just use a diode.
For a single coil latching relay, where you swap the polarity of the control voltage (24VDC in this case)to latch and unlatch, whats the best way to snub the coil? I'm seeing some...
In the midst of a discussion with another PM about this....
System is 3 phase, 480VAC, total HP of motors are 28.166 (25,2,.5, 1/3, 1/3) and 42.3FLC (36,3.5,1.2,.8,.8)
I'm saying that we need a disconnect rated at min of 30HP or 45A....he says its 1/3 of that since each phase carries 1/3 of...
Anyone familiar with the section in NEC that discusses 70V audio? I was told it was grandfathered in, such that you do not need to have it in conduit, but looking for the article number to reference that.
again...a story of two companies with deep pockets and an army of company lawyers. If every company was worried about patent infringments, then there wouldnt ever be new products developed.
I've not used it, but SolidWorks had a module for cable diagrams...you could draw it in the assembly using 3D and it would calculate the lengths, etc
I just use a regualar cad program (autocad or designCad)
Well...you have to relize that they made a business from sueing others with deep pockets and until they finally had someone that didnt back down, did a pretty nice income from it.
I do see your point on being the mfg of lighting products..but the way it usually works, the patent holder first...
Sometimes...you just accept a design...thats how its always been done, but I wonder...its a bit of black magik for a mostly digital guy.
3.3V board voltage being fed to a RF section (say..a 2.4GHz module). Do not take into account any filtering other than simple bypassing being done on the...
Just getting started on this project....to preface I've been away from AB PLC programming for 6 or so years now but a client has asked specifically for a Micrologix1200 and Panelview, so I have the hardware, and finally the software installed...
The program isnt all that complex, and I can take...
True...used to do alot of AB but then went to a less expensive brand till this. I'm not sure if our local guys have much knowledge, but worth a try.
I just thought at least the documentation that came with it ought to have a little more explantion of the comm ports.
The link provided in the...
Its been years since I've done an AB PLC, last ones were way back in time with the SLC500 bricks.
Client *insisted* on a Micrologix. OK, so I now have a Micrologix1000, and gettng RSLOGIX updated to do the programming. I have a model 1761-L32AWA
Looking thru the manual, and googling some...
Just back to this....I actually am going with the ON Semi circuit, pretty straight forward, and the inductor is on the way (as are the ON parts). The problem with Power Integrations is the custom coils for it. Otherwise, nice product line.
Agency approval will be required anyway, for the...
Its been years since I've done an AB PLC, last ones were way back in time with the SLC500 bricks.
Client *insisted* on a Micrologix. OK, so I now have a Micrologix1000, and gettng RSLOGIX updated to do the programming. I have a model 1761-L32AWA
Looking thru the manual, and googling some...
