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.
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...
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...
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...
In the near future, it would appear the sale of the traditional wal-warts will be a thing of the past in California, and probably followed on by other states.
So, do new devices that are to be sold in California that might use a simple transformer type supply embedded, subject to the same...
Looking for a source on smallish PV panels...in the range of 5" by up to 12". This is to be used on a portable battery charging system. Before its asked, I haven't worked out the battery capacity or anything else, just trying to gather data at this point so I can see what my design variables...
Hopefully this is the correct forum to post this in.
Best way to describe what I am looking for is think about the timers you plug into the wall outlet, and then you plug a lamp into it. I am looking for the tabs that can be PCB mounted for both plugging into the outlet as well as plugging...
I have a project where the box has a small AB PLC and a user interface panel, around a 20x20x8 NEMA4 enclosure.
So the customer wants a AC unit to keep the unit cool...so who makes small AC units to mount on the side? I am thinking heat exchanger or the like and I think most the heat will be...
