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Last seen: Feb 13, 2024
I was not referencing length v width, they are the same, I was talking about number of pulses. The pump controller is measuring duty cycle (i.e. widt...
How heavy is the cylinder once filled? 😀
I suspect this is your measuring equipment not having enough resolution/bandwidth. The minimum pwm frequency for the grundfos is 100hz, so you should...
The speed should be based ONLY on the duty cycle, which is independent of the number of pulses, but is dependent on the pulse width.
Exactly, but Samsung specific, of course.
I should have been clearer ... and this is Samsung specific ... The modbus module MIM-B19M does not know how to talk to the heat pump to respond to so...
I am sure you are correct. I will collect the evidence [of it not working] and send it to Samsung [not that I expect much out of that] Their latest...
The manual says that it will only move from 50-100%. Again, once I get mine installed I will monitor the 10v signal coming out of my PWM to 0-10v con...
I will do some tests on this, but I suspect that there is a point where the samsung control logic decides you don't actually have a PWM pump and disab...
I am not sure how you do this for your heat pump. I had the same issue on the Samsung when I did not follow the instructions on how to setup the modb...
You need to enable PWM in the settings. Check FSV #4051 for more information. I also found a new version of the samsung manual online, seems to ha...
I put a scope on my PWM output (even though I don't have a PWM pump). It does send a PWM signal but mostly sits on max. There are two types of PWM ...
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