Recent content by onyxindustries

As other respondents have stated, when a load is overhauling the motor produces current (becomes a generator). So when accelerating an inertial load, the motor will consume all the amps the drive will give it. when overhauling, the opposite is true. the motor produces a current that the drive...

You have stated: "In the beginning motors drive the load and when material starts going down hill, the load is driving motors" So if I understand that right, it's rotating 1 direction and applying torque in the opposite direction, basically holding back the load since it is sloping down with...

Just my humble opinion- an IEC61131 codesys based environment is valuable for learning, since it exposes you to multiple languages and applies to multiple manufacturers. It's less proprietary. Mfg's supporting this include Schneider, Wago, Festo to name just a few. I am sure you could find some...

That's a reference design- quite possibly; it will not drop right into the specifics of your application. assuming it's useable, it appears that TI has provided the gerber files for download. With that and the BOM, about any board fabricator would have what they need to build. I have used Seeed...

>>>My question is simple, but the answer escapes me. To all >>>you devoted Allen Bradley people and to everyone else who >>>uses PLCs, why do you pay for their programming software? value is defined differently from user to user. The infrastructure (support, education, etc) for...

AB != cheap there are plenty of other good options out there now.

Here's a link to the manual: https://www.weintek.com/globalw/Download/Download.aspx?T=hardware As the other responder said, you first make the device available by establishing a comm type under system. Since it supports many protocols, this allows the HMI to know which protocol type to...

If you have narrowed it down to the input transition event causing the PLC comms channel to close or lock up, then possibly, the addressing of the modbus read is off or the type is off.

Sounds like the drive might be in overload and folding back current. Current is torque to a motor (generically), so if the load requires more current than available from the motor/drive to do the work, the drive will try to protect it by "folding back" the amount of current it delivers to stay...

Pretty vague request- this has a lot of generic information based on speculation. don't know what the motion requirement are. assuming robot is main control of the machine and no separate plc or motion controller? if so, then a programmable servo drive(s) can execute motion profiles on command...

there are devices that could add functions the existing PLC/HMI aren't capable of. The first one that comes to mind is Red Lion's Data Station Plus http://redlion.net/products/industrial-automation/controllers-and-data-acquisition/data-acquisition Web server, data logger, multiple comm...

Check the start sequence requirements for the vfd. If there is an enable (or STO) and run input, the vfd may require enable active before run is activated to allow rotation.

SSAC (now part of ABB) used to have a something that would chop off voltage to small 1~ AC Motors, prbly not up to 3Hp and torque/speed performance probably pretty rough. If issue is voltage source available, get a rotary phase converter to produce 3~ from 1~ (American Rotary is good) and swap...

> Is there any buzzer or tower light that support MODBUS? My company is in the middle of designing a modular stack light. It'll have 10/100bT connection to Modbus/TCP. Doesn't do you much good now since it's not done... but I am curious what's on your "wish list" for machine indicators...