Physically mount the switches so they switch 90 degrees apart. This will give you a quadrature output. then refer to the card module instructions to configure it.
Ed
Long discussion on this thread
http://www.eng-tips.com/viewthread.cfm?qid=247210">Electric motors, generators & controls engineering - Maximum speed a motor can be run at</a>
Good description at
http://www.powerqualityanddrives.com/torque_constant_horsepower/
Ed
Cordset to:
http://www.turck-usa.com/Products/Connectivity/eurofast/Field_Wireables/eurofast_Field_Wireables_Standard_with_LEDs.htm
Then a cap, for protection.
Probably look ugly. It's a place to start
I agree with SReid on temperature shutdown. Especially if you're sorta new to this stuff, and have a limited budget. Measuring current & voltage out of a drive can't be done using conventional methods. You'll need some true RMS measuring. And that can get expensive.
The easiest way would be to...
Since you haven't done this before, I'd like to ask a few questions.
1). What is the purpose of this run-in ? Do you want to see if these motors will function for 8 hrs without self-destruction? Or ?
2). Will the run-in involve loaded or unloaded motors?
3). What temperature are you concerned...
To Calculate the speed of a induction motor, apply this formula: rpm = (120 x F)/P
rpm = synchronous revolutions per minute.
120 = constant
F = supply frequency (in cycles/sec)
P = number of motor winding poles
So, the synchronous speed of a 4-pole motor is...
E-stopping a servo by shutting down the supply is (was) used to be pretty common with FANUC.
Here is FANUC's E-stop setup. In the description, the term "Magnetic" is used on Page 3/5 around line 50. My recollection is that "Magnetic" is FANUC's term for Contactor. It's been awhile seen I...
Raytek XR
IR, with 485 to 232 adapter kit
http://www.raytek.com/Raytek/en-r0/ProductsAndAccessories/InfraredPointSensors/ThermalertSeries/Raytek+XR/GP+Datasheets.htm
Ed
When I was working for a major motor Mfg. I got very involved in setting up an engineering / preproduction motor testing lab.
It had 4 cells. Two were wrapped around a DC based dyno and the others around AC.
The DC's were 1800 RPM machines that utilized field weakening to get to 2-pole AC...
This looks sorta like a language (nomenclature) problem. If I'm remembering correctly, FANUC called this an "Abnormal Current In Servo" alarm. the machine tool maker can call it anything he wishes though.
Basically it means that the servo is exceeding it's current limit, and the drive is...
Questions to ask consultant.
1) This machine is eating itself. How far away do you think an E-Stop should be?
2) This machine is eating *you*. How far away do you think an E-stop should be?
Ed
karl,
That 2 X might very well be for 2 parallel contacts. It was early and I was between the 1st & 2nd cup.
Another area you might look at would be the A-B Bulletin 100S-D IEC Safety Contactors. they actually spec a standoff of 1 kV. Series a couple contact sets, and you'll have a lot of...
Karl,
Just to further complicate matters, I just took a look at the Schaltbau relay you referenced, and I very much doubt (but could be wrong) that the Aux contacts are not of the "Force Guided" type. If they are not, they probably aren't suitable as MPCE monitor contacts.
However, you might...
