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| General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums. |
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07-22-2004, 11:08 AM
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#1 |
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CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
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need EE help - again
trying to test a pump but am confused as to how to connect it
 pin 1 is +12VDC pin 2 is the tach output which is the -12VDC leg, pin 6 "+12V DC RETURN" ? what is pin 4 ? the text is Hungarian pins 3 and 5 are open (none) = "semmi" ? |
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07-22-2004, 11:13 AM
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#2 |
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Thermophile
Join Date: May 2001
Location: UK
Posts: 1,064
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Pin 6 looks to be the ground pin, no idea what pin 4 is.
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07-22-2004, 11:21 AM
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#3 |
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Thermophile
Join Date: May 2001
Location: UK
Posts: 1,064
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A quick translator check on pin 4 reveals it says motor (variable) feed, I'm not entirely sure what that means for a pump - maybe it has some sort of speed varying circuitry on-board?
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07-22-2004, 11:35 AM
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#4 | |
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Cooling Savant
Join Date: Jan 2004
Location: london, england
Posts: 416
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Quote:
"semmi" translates to english as "zero" |
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07-22-2004, 11:42 AM
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#5 |
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CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
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nice link, Thanks
guess I need to avoid the variable feed lead |
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07-22-2004, 12:13 PM
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#6 |
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Cooling Savant
Join Date: Feb 2004
Location: Massachusetts, USA
Posts: 158
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Hmmm...hun--ga--ri--an pump
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07-22-2004, 01:19 PM
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#7 |
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Join Date: May 2002
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The return is indeed the ground. Semmi is not connected.
Comair-Rotron fans have similar connections, FWIW. |
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07-22-2004, 01:28 PM
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#8 |
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CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
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tach AND speed control ?
link ? |
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07-22-2004, 02:08 PM
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#9 |
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Cooling Savant
Join Date: Jan 2003
Location: BC, Canada
Posts: 313
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Maybe #4 is a lower speed start winding. My AC tablesaw motor has that, with a capacitor, but the "tacho" is just a centrifugal DP switch. You could google pump control circuits - see what they can do. You're missing the controller.
For sure the best use of speed control in a pump is at startup torque. |
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07-22-2004, 03:24 PM
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#10 | |
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Quote:
Digging... |
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07-22-2004, 03:56 PM
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#11 |
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Responsible for 2%
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07-22-2004, 04:10 PM
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#12 |
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CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
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Thanks Ben, good info
lots of experimenting to do |
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