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1. [TowerTalk] SteppIR problem (score: 1): Author: Bill Carnett <ah6fc@yahoo.com>; Date: Sun, 10 Jun 2007 08:41:54 -0700 (PDT); Greetings to all Tower Talkers, A very wise man and fellow TT (K7LXC) suggested I post my challenge here to the group...maybe somebody will have a new idea that I've not explored. Last week we put up; /archives//html/Towertalk/2007-06/msg00200.html (9,867 bytes)
2. Re: [TowerTalk] SteppIR problem (score: 1): Author: "R. Kevin Stover" <rkstover@mchsi.com>; Date: Sun, 10 Jun 2007 13:38:50 -0500; Hi Bill. Are you using the SteppIR 33V power supply upgrade for control cable runs of longer than 200ft? - -- R. Kevin Stover, ACØH --BEGIN PGP SIGNATURE-- Version: GnuPG v1.4.7 (MingW32) Comm; /archives//html/Towertalk/2007-06/msg00202.html (7,817 bytes)
3. Re: [TowerTalk] SteppIR problem (score: 1): Author: "James C. Garland" <4cx250b@muohio.edu>; Date: Sun, 10 Jun 2007 15:12:34 -0600; Bill, that's quite an interesting mystery! Evidently, you're overloading the power supply and it's shutting down, so I agree with Jerry's assessment. However, from what I understand, the stepper moto; /archives//html/Towertalk/2007-06/msg00205.html (12,287 bytes)
4. Re: [TowerTalk] SteppIR problem (score: 1): Author: Peter Dougherty <w2irt@comcast.net>; Date: Sun, 10 Jun 2007 17:24:51 -0400; Just wondering what gauge of control wire did you use? 500 feet is a LONG run and I'm guessing you'll need something heavier than "average" cable runs. I'm also hoping you're feeding this with some t; /archives//html/Towertalk/2007-06/msg00206.html (8,026 bytes)
5. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Mark Robinson" <markrob@mindspring.com>; Date: Sun, 10 Jun 2007 17:31:01 -0400; I am wondering if you are having problems because you have a long run of control cable. Paralleling the control cable might be a useful experiment. If your voltage at the motor is really low will the; /archives//html/Towertalk/2007-06/msg00207.html (15,072 bytes)
6. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Dick Green" <wc1m@msn.com>; Date: Sun, 10 Jun 2007 18:04:33 -0400; Bill, I've been following your exploits on the SteppIR reflector, too. Jim's suggestions are excellent, and I would do all of the tests he recommends. They're easy to do. Do you have a copy of SteppI; /archives//html/Towertalk/2007-06/msg00209.html (16,839 bytes)
7. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Jerry Keller" <k3bz@arrl.net>; Date: Sun, 10 Jun 2007 20:58:49 -0400; This has been a very difficult problem. We could find nothing to suspect except the power supply, but a 2nd PS did the same thing. SteppIR's engineers suggested the following: (1) bad controller (we; /archives//html/Towertalk/2007-06/msg00212.html (12,955 bytes)
8. Re: [TowerTalk] SteppIR problem (score: 1): Author: "W5LT" <W5LT@tx.rr.com>; Date: Sun, 10 Jun 2007 21:19:39 -0500; Bill: I too have been following your exploits, both here and on the SteppIR reflector. I still believe the issue is related to the power supply. As Mike M. pointed out, the motor drive is via current; /archives//html/Towertalk/2007-06/msg00216.html (18,098 bytes)
9. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Sun, 10 Jun 2007 21:53:10 -0500; Don't take that antenna down just yet. It is much more likely that the problem is on the ground. First some basic operational details that may help you understand possible causes. Maybe if I give you; /archives//html/Towertalk/2007-06/msg00218.html (20,033 bytes)
10. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Sun, 10 Jun 2007 22:16:39 -0500; One minor correction to what I just wrote. Each element requires 4 wires, not 2, but they when they are measured from the controller end they will appear as 2 independent loads. Jerry _______________; /archives//html/Towertalk/2007-06/msg00220.html (23,209 bytes)
11. [TowerTalk] SteppIR problem (score: 1): Author: "Ron Todd" <ron@k4wz.com>; Date: Sun, 10 Jun 2007 23:23:03 -0400; I suggested to cut the cable at the bottome of the tower and check. Even better climb the tower and the connector is right thire to test with a short cable and you now have divided your problme in ha; /archives//html/Towertalk/2007-06/msg00221.html (8,231 bytes)
12. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Dick Green" <wc1m@msn.com>; Date: Sun, 10 Jun 2007 23:22:15 -0400; I remember reading on the SteppIR reflector about the driver chips being current sources and how this makes the cable length irrelevant, except for added capacitance. I understand that added capacita; /archives//html/Towertalk/2007-06/msg00222.html (23,803 bytes)
13. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Sun, 10 Jun 2007 23:29:00 -0400; The obvious thing is a wiring error you don't know about, but let's assume it is all OK. I'm also assuming several others have very similar setups without any issues. I'm not at all familiar with th; /archives//html/Towertalk/2007-06/msg00223.html (10,072 bytes)
14. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Sun, 10 Jun 2007 22:43:44 -0500; When those controllers were returned did they test good, or were they blown? I asked him to do ohmmeter measurements to eliminated direct shorts and remove all extraneous devices from the lines. If h; /archives//html/Towertalk/2007-06/msg00224.html (26,109 bytes)
15. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Mon, 11 Jun 2007 00:02:57 -0400; Nor am I, but I have many years working with process control and positioners prior to moving into computer science. Which brings up my question: How does the system know the motors have moved the ta; /archives//html/Towertalk/2007-06/msg00225.html (11,292 bytes)
16. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Sun, 10 Jun 2007 23:03:53 -0500; Tom, I can answer a few of those questions. -- The obvious thing is a wiring error you don't know about, but let's assume it is all OK. I'm also assuming several others have very similar setups witho; /archives//html/Towertalk/2007-06/msg00226.html (13,372 bytes)
17. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Sun, 10 Jun 2007 23:08:32 -0500; Yes, that is exactly how it works. It does have a recalibrate function which drives the elements back into the housing and oversteps the pulses so that it is now sure where the antenna is. Jerry ____; /archives//html/Towertalk/2007-06/msg00227.html (9,603 bytes)
18. [TowerTalk] SteppIR problem (score: 1): Author: NPAlex@aol.com; Date: Mon, 11 Jun 2007 00:33:54 EDT; Bill, Given that you have a 500 ft run, the first thing I would do is take the controller out to the base of the tower where the cable length is more typical and see if all works well then. If so, ru; /archives//html/Towertalk/2007-06/msg00228.html (11,703 bytes)
19. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Mike Fatchett" <mike@mallardcove.com>; Date: Sun, 10 Jun 2007 22:45:52 -0600; Easier said than done. The controller uses a 25 pin connector. He would have to cut the cable and then solder up a connector. I have a 300 ft run of cable in Colorado and have had no issues at all. I; /archives//html/Towertalk/2007-06/msg00230.html (13,131 bytes)
20. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Mon, 11 Jun 2007 00:23:29 -0500; An interesting observation. One can easily make the mistake of saying that the current to the motor is regulated so the supply current doesn't change due to the extra resistance, because the motor cu; /archives//html/Towertalk/2007-06/msg00232.html (11,003 bytes)

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