I guess the point I was trying to make here is that on the slow end of the curve, a variable torque (pump) application isn't "expecting" much of a load at all, however his conveyor belt is. You might say that the load requirements are linear with the conveyor belt, where on the pump application...
First, is the drive big enough? You say that it is rated 75Kw, but is that for constant torque, or variable torque? If it is 75Kw variable torque, you can expect approximately 56Kw constant torque, which your conveyor belt application is.
If the motor is connected to the drive with chain and...
You really have a lot of choices here, I believe that most SCADA/HMI packages will do SQL. Most of my experience is with National Instruments Lookout, and they have an SQLExec command, which allows you to write an SQL statement, and have variables in it.
I typicly write a stored procedure and...
Ok, simple question I hope.
Normal for the U.S. (me anyway) 480 VAC 3ph, 9 lead motor. Internally lead #10, #11, & #12 are connected together, making it a Y motor. If this is normal, and it is in Y for run, why do we Start in Y and run in Delta?
Ok, this is what I am thinking... In Y we have...
The 2 shaft sizes do not have to be identical for the the 'pulleys to be reversed'. A lot of pulleys are split-hub type. The hubs would only fit where they were, on the motor or on the blower. But, during instilation, the pulleys could have been switched, because either one would have fit on the...
