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I'am looking for a descent schematic for A 12VDC motor. That can regulate the speed quit precise. I would use PWM control but the schematics I found on the internet didn't do very good. My motor can handle up to 16Amps, at least for one schematic that I found that was the problem. It worked fine...

At first I get a write error, all the rest are read errors. I don't get any respons from the drive. If I send a command with the test center from that program I see the command that I send in the traffic. But I don't get any respons from the drive back. I think it must have something to do that...

I'am 100% sure that my settings are correct on the invertor site. Thx for the reply anyway

And do I need to connect the RCV+;XMT+ amd RCV-;XMT- still together?I'll have to try with the 120ohm resistor I'am sure parameters A001;A002;A076 are set in a good way. I use RTU. Here is the site from the program that I used www.modbustools.com

I have the manual and I'm sure the wires are correct. I used the same cable with the HMI and that worked. I'am using model 2089 from patton as a RS485/RS232 converter. But that has XMT+;XMT-;RCV+;RCV- as connections. I tried to connect XMT+;RCV+ together and XMT-;RCV- together and then the...

It used hyper terminal to check my wire and that works. I'am using a rs485/rs232 from patton. I did a loopback test with that, with the hyperterminal. And thatworked as well. I also checked to modbus at the company where I bought it, and the modbus works with an HMI.

I have a hitachi L200 frequentie controller. The L200 has an modbus output on RJ-45 connector. I would like to control the L200 with a C++ program. I bought a RS232/RS485 convertor to make the conversion between my PC and the modbus.But I'am unable to connect the L200 with my PC it just doesn't...

My boss doesn't wonna buy complete modules. So i'am looking to design something I can put toghter easy. Allready thx for the info.

Thanks for the responce. The motor I need to control is a 230V motor. I'am new with all this stuff so any info is welcome THX

nobody?

Does someone have experience with the UAA2016P chip? I'am trying to regulte a shaded pole motor. In the end it should be the meaning the control the speed of the motor in function of the temperature. It would be a great help to have some feedback, it would be helpfull.Thx in advance

By controlling I mean regulate the frequency. The program is written in C++.For the rest the program just collects data from a Daq card.

Sed2 developer I had another question for you about the drive. For a certain project we do use drive controls. And now I'am looking for a solution for controlling a motor through the PC. For that project we have aour own program but is it possible to control the motor from our program. Because...

thx for the tip skogsgurra I'll take a look

I found a schematic with very few components, just a 3 transistors and a NTC and a few resistors. I just need to put it togheter. I hope that will work.I just hope the thing doesn't get fried if the temp goes up to high.

It needs to vary in speed between 30°C and 70°C by RPM =>TYPO needs to be 40°C and 70° For SED2 I think it will take abit to much room the space I have is only 10cm high And the fan is a regular tangential fan. The purpose is in fact that It's need to be used in a fireplace.It should regulate...

Hi I'm looking for a circuit that can do: control the fan RPM by the temperature,but with some conditions. If the temperature is below 40°C then the motor doesn't have to run. It needs to vary in speed between 30°C and 70°C by RPM And above 70­°C it needs to run at full speed. The fan needs to...

Thx for the reply anegri but meanwhile I found a solution. Nib

Hi I'm looking for a valve that can be controlled by a motor. But the diameter of the valve should be 180mm. The valve is used to control the flow. The motor should be able to start and stop at any point along its way. Does someone have any suggestions where I can find that?