Source for replacement rotary encoder?
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From: DaveC on 5 May 2010 23:36 <http://i42.tinypic.com/nbt2ci.jpg> <http://i43.tinypic.com/10rpd3d.jpg> <http://i39.tinypic.com/28gtmvs.jpg> How can I find a source for this component (in the US, or anywhere)? It's a rotary encoder used as an input to a microcontroller to rotate a motor shaft in small increments in a 10-year old German printing machine. There are 32 detents per revolution. The unit includes a momentary pushbutton (when you push on the shaft there is click and tactile feedback). I presume it's a gray-code quadrature output encoder. Optical? Mechanical? Only 5 of the pins are used. (Typically power, ground, channel 1, channel 2, .... ?) Source? Data sheet? Does this look like Klockner-Moeller? Or it may be Japanese -- the LCD display for this equipment is Hitachi. Thanks, Dave
From: krw on 6 May 2010 00:06 On Wed, 5 May 2010 20:36:47 -0700, DaveC <invalid(a)invalid.net> wrote: ><http://i42.tinypic.com/nbt2ci.jpg> ><http://i43.tinypic.com/10rpd3d.jpg> ><http://i39.tinypic.com/28gtmvs.jpg> > >How can I find a source for this component (in the US, or anywhere)? It's a >rotary encoder used as an input to a microcontroller to rotate a motor shaft >in small increments in a 10-year old German printing machine. > >There are 32 detents per revolution. The unit includes a momentary pushbutton >(when you push on the shaft there is click and tactile feedback). We use Bourns optical encoders, like this, for "volume" knobs (double duty for options scrolling). Grayhill also has some nice products, a little cheaper, too. >I presume it's a gray-code quadrature output encoder. Optical? Mechanical? >Only 5 of the pins are used. (Typically power, ground, channel 1, channel 2, >... ?) Ours just have the quadrature output. We use a I2C attached quadrature counter for control. >Source? Data sheet? See above, or try Digikey's online catalog as a starting place. http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1966131&k=optical%20encoder >Does this look like Klockner-Moeller? Or it may be Japanese -- the LCD >display for this equipment is Hitachi.
From: stratus46 on 6 May 2010 00:25 On May 5, 8:36 pm, DaveC <inva...(a)invalid.net> wrote: > <http://i42.tinypic.com/nbt2ci.jpg> > <http://i43.tinypic.com/10rpd3d.jpg> > <http://i39.tinypic.com/28gtmvs.jpg> > > How can I find a source for this component (in the US, or anywhere)? It's a > rotary encoder used as an input to a microcontroller to rotate a motor shaft > in small increments in a 10-year old German printing machine. > > There are 32 detents per revolution. The unit includes a momentary pushbutton > (when you push on the shaft there is click and tactile feedback). > > I presume it's a gray-code quadrature output encoder. Optical? Mechanical? > Only 5 of the pins are used. (Typically power, ground, channel 1, channel 2, > ... ?) > > Source? Data sheet? > > Does this look like Klockner-Moeller? Or it may be Japanese -- the LCD > display for this equipment is Hitachi. > > Thanks, > Dave http://search.digikey.com/scripts/DkSearch/dksus.dll?lang=en&site=US&WT..z_homepage_link=hp_go_button&KeyWords=gh6102&x=0&y=0 32 detents, incremental quadrature, optical read, tactile switch. G²
From: DaveC on 6 May 2010 00:45 Yes, I can find *a* rotary encoder. I need *this* rotary encoder. Any idea the make & model of this one? Is EBE the manufacturer? Thanks, Dave
From: Royston Vasey on 6 May 2010 01:16 "DaveC" <invalid(a)invalid.net> wrote in message news:0001HW.C807875F02BFBFD4B01AD9AF(a)news.eternal-september.org... > <http://i42.tinypic.com/nbt2ci.jpg> > <http://i43.tinypic.com/10rpd3d.jpg> > <http://i39.tinypic.com/28gtmvs.jpg> > > How can I find a source for this component (in the US, or anywhere)? It's > a > rotary encoder used as an input to a microcontroller to rotate a motor > shaft > in small increments in a 10-year old German printing machine. > > There are 32 detents per revolution. The unit includes a momentary > pushbutton > (when you push on the shaft there is click and tactile feedback). > > I presume it's a gray-code quadrature output encoder. Optical? Mechanical? > Only 5 of the pins are used. (Typically power, ground, channel 1, channel > 2, > ... ?) > > Source? Data sheet? > > Does this look like Klockner-Moeller? Or it may be Japanese -- the LCD > display for this equipment is Hitachi. > > Thanks, > Dave > googling should lead you to a source. A single earch on cesi + encoder gave: http://img.diytrade.com/cdimg/176657/1202078/0/1144194283.jpg
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