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Total 6 documents matching your query.

1. [TowerTalk] SteppIR cable (score: 1): Author: "Ron Todd" <ron@k4wz.com>; Date: Sun, 10 Jun 2007 21:06:30 -0400; Several mentions were made that it was related to the 500 feet of control cable, but SteppIR's engineers say the longer cable would actually help reduce the load, so cable length has been ruled out.; /archives//html/Towertalk/2007-06/msg00213.html (7,046 bytes)
2. Re: [TowerTalk] SteppIR cable (score: 1): Author: "Perry - K4PWO" <k4pwo@comcast.net>; Date: Sun, 10 Jun 2007 20:48:33 -0500; The longer cable, due to its resistance, would act as a current limiter preventing power supply fold-back. Have you confirmed that the power supply is really shutting down? The description almost sou; /archives//html/Towertalk/2007-06/msg00214.html (8,177 bytes)
3. Re: [TowerTalk] SteppIR cable (score: 1): Author: "Jerry Keller" <k3bz@arrl.net>; Date: Sun, 10 Jun 2007 22:07:30 -0400; We thought of that also.... the wires were switched around to see if the "4th EHU" was any particular EHU... but no matter which EHU was asdded last, it had the same result. So the problem isn't spec; /archives//html/Towertalk/2007-06/msg00215.html (10,210 bytes)
4. [TowerTalk] SteppIR cable (score: 1): Author: "James Cassidy" <jimki7y@earthlink.net>; Date: Sun, 10 Jun 2007 19:40:55 -0700; If the cable uses only 1 conductor for a common and separate conductors for each motor, is it possible the voltage at the motors could be reduced when all 4 motors are operating? Jim Cassidy KI7Y jim; /archives//html/Towertalk/2007-06/msg00217.html (7,133 bytes)
5. Re: [TowerTalk] SteppIR cable (score: 1): Author: "shack" <noddy1211@sbcglobal.net>; Date: Sun, 10 Jun 2007 20:11:33 -0700; I still think it is the length of the cable. Has anyone tried to measure current and voltage when under load e.g. when all four elements are being adjusted? I think there is a voltage drop, which is; /archives//html/Towertalk/2007-06/msg00219.html (8,190 bytes)
6. Re: [TowerTalk] SteppIR cable (score: 1): Author: "Joe Subich, W4TV" <w4tv@subich.com>; Date: Mon, 11 Jun 2007 02:45:01 -0400; Mike, I would bet that the switching supply is shutting down because of a highly capacitive load and very high current peaks. The stepper motors operate on square wave drive. The controller is feedin; /archives//html/Towertalk/2007-06/msg00235.html (10,338 bytes)

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