Reply to "DZ-1000 Control w/ single button"

stan2004OGR Forum Member

gunrunnerjohn posted:
Stan, he just needs a common cathode bi-color 3-pin LED, both of those LED outputs are positive in respect to ground.

confused LED3 and LED4 do NOT share a common cathode. Depending on the position of the microswitch sensor, you either light up both Reds or both Greens with the current path as shown. Different polarity of the AC signal is used to drive the two colors so the LEDs are driven by half-wave rectified pulses.

And of course when a pushbutton is pressed it applies half-wave rectified pulses of proper polarity to drive the DC motor to toggle the microswitch.

So I don't see how a 3-terminal common-cathode LED could be used?

I see all kinds of 4-terminal red-green LEDs but only in surface-mount form which would be hassle to work with plus mate to a lens to project thru a control panel.

If using 2 LEDs and 2 panel holes is acceptable that's clearly simplest.

Attachments

Hide

Images (2)

3/3/1712:54 PM

<ul id="{%=id%}ButtonGroup" class="button-group h-popup-buttons even-button-group even-1">
    <li id="{%=id%}Okay_buttonContainer"><a id="{%=id%}Okay" href="javascript:void(0);" class="button success no-margin-bottom h-alert-modal-ok-button" role="button">OK</a><script type="text/javascript">
        (function() {
            function {%=id%}Okay_click(event, data) {
            {%=id%}Popup.hide();
        }
        
                $('#{%=id%}Okay').on('click', {%=id%}Okay_click);
        })();
    </script></li></ul><a href="javascript:void(0);" class="close-reveal-modal" aria-label="Close Modal">&#215;</a><div class="last-modal-focus focus-utility-element" tabindex="0"></div>
</div>
<script type="text/javascript">
        (function() {
            {%=id%}Popup = new SS.Popup.ModalPopup('{%=id%}');
        })();
    </script>

Skip to main content

Attachments

Membership Required

Remove From Your Block List

Manage Follow Preferences

Block

OGR Forum Supporting Membership Required

OGR Forum Supporting Membership

Help support this forum with an OGR Forum Supporting Membership.You will be able to watch the videos in the INSTRUCTIONAL VIDEO FORUM!A one-year OGR Forum Supporting Membership is only $12 per year, so sign up now!

OR

Access the ALL the OGR VIDEO FORUMS AND over 300 back issues of OGRwith a DIGITAL SUBSCRIPTION!

Please wait...

Help support this forum with an OGR Forum Supporting Membership.
You will be able to watch the videos in the INSTRUCTIONAL VIDEO FORUM!
A one-year OGR Forum Supporting Membership is only $12 per year, so sign up now!

Access the ALL the OGR VIDEO FORUMS AND over 300 back issues of OGR
with a DIGITAL SUBSCRIPTION!