Hi all, not really a plc question. But a question I am sure somebody will be able to answer.
I have a machine that has a Siemens micromaster inverter used to vary the speed of a motor. Currently this is controlled via a potentiometer on the panel. I would like to replace this with some kind of digital input with lcd display. Hopefully the display would show 0 - 100%
One option is to configure the drive for digital inputs (+speed -speed)and then use the analogue output from the inverter to signal a Ma meter. Scaled to achieve the numbers I want (0-100). But I have tried this and its not very accurate, sometimes the meter would read above 100. Only slightly, but still it doesn't seem right and hope that there may be something on the market that will achieve what i require.
Many thanks in advance.
I have a machine that has a Siemens micromaster inverter used to vary the speed of a motor. Currently this is controlled via a potentiometer on the panel. I would like to replace this with some kind of digital input with lcd display. Hopefully the display would show 0 - 100%
One option is to configure the drive for digital inputs (+speed -speed)and then use the analogue output from the inverter to signal a Ma meter. Scaled to achieve the numbers I want (0-100). But I have tried this and its not very accurate, sometimes the meter would read above 100. Only slightly, but still it doesn't seem right and hope that there may be something on the market that will achieve what i require.
Many thanks in advance.