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Recent content by aagaag

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    DYI hack to control headphone switch

    Dear Brian thank you for your very fast, detailed and helpful response, which is highly appreciated. When I insert a jack adapter, the loudspeakers disconnect even if no actual headphone is inserted, thereby indicating that the switch is indeed mechanical. I would imagine that this would be the...
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    DYI hack to control headphone switch

    I often need to switch my Sony STR-DN1060 receiver from headphones to speakers and vice versa. The receiver is hosted in a cabinet, and it would be practical to remote control the switch via a relay. My understanding is that the insertion of any plug into the headphone jack causes the receiver...
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    SCART plug: how to physically connect wires

    thanks - I eventually did something like that, and it worked fine.
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    [SOLVED] SINAMICS inverter, how to start via digital inputs

    Now that you say it, it has become obvious to me too! :-? Anyway, I followed your advice, and the Sinamics now works like a charme. Thanks again!
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    [SOLVED] SINAMICS inverter, how to start via digital inputs

    I cannot make much sense of it - but maybe somebody else does. The manual is here: **broken link removed**
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    [SOLVED] SINAMICS inverter, how to start via digital inputs

    I have a Siemens SINAMICS V20 0,12 KW 240V inverter, which I use to drive a 2-wire fan at 17 Hz. I wish to start the inverter by digital input rather than manually. As specified in the manual, I have set parameters P0700 to 2 and P0701 to 1. However, shorting digital input DI1 to either the 0V...
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    How to remove EMG artifacts from ECG?

    The additional sensors are for the V1-V6 derivations, for inspecting left/right ventricular abnormalities (ST elevation etc.) at higher resolution than by extremity electrodes. They have nothing to do with canceling muscle-related noise. I am no electronics engineer but I am a licensed medical...
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    SCART plug: how to physically connect wires

    I need to connect a bunch of wires to SCART male and female plugs. The male plug has nice crimp connectors. However, I do not understand how to connect the wires to the female plug. It looks like little shark teeth (see pic). I guess that they are not meant to be soldered. Do I need some special...
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    [SOLVED] SINAMICS inverter, how to suppress distortion

    I have one additional question related to the function of the Sinamics. I wish to start the inverter by digital input rather than manually. I have set parameters P0700 to 2 and P0701 to 1 (rather than using a connection macro). However, shorting digital input DI1 to either the 0V or the 24V...
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    [SOLVED] SINAMICS inverter, how to suppress distortion

    Dear FvM, you da man, vielen Dank! I set the P1800 parameter to 14 kHz, and the noise disappeared completely!!!
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    [SOLVED] SINAMICS inverter, how to suppress distortion

    Dear FvM, thanks but I do not understand. My goal is to run the ventilator very slow, at 17 Hz (not kHz). That works well, but the inverter makes a high-pitched noise, which is annoying in my setting. The load is 110 W.
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    [SOLVED] SINAMICS inverter, how to suppress distortion

    I have a Siemens SINAMICS V20 0,12 KW 240V inverter, which I use to drive a 2-wire fan at 17 Hz. This arrangement works, but it results in significant emission of audible distortion at ca. 8 kHz (and higher). I would be grateful for any advice on how to suppress the distortion. I imagine that...
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