Thank you. Maybe the issue is that I slowed down the PSX¡¯s so that they would play nice with the frog juicers because the juicers are slower than the PSX¡¯s. So I might have to scrap the juicers and use tortoises to change frog polarity or switch to the Tam Valley circuit breakers which will play nice with the juicers.
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On Aug 7, 2021, at 11:49 AM, Blair <smithbr@...> wrote:
?Okay, you're on the right track, but I think you've misinterpreted. If the lights on the DCS don't go out when you short the track, you've not lost your DC input, the DCS is trying to protect itself from the short by shutting down it's outputs.
That leads to a different diagnosis. The DCS is, I believe, reacting faster than the PSX, and therefore extending the DCS response by changing op sw 18 is necessary. However, I don't know if it will be sufficient, as I don't know if the PSX can respond faster than the delayed DCS - but I would expect so, or we'd hear far more people having this problem.
So, try changing the state of Op Sw 18 (verify using the tech doc I linked to earlier for the DCS 210+). If that doesn't solve the problem, then either something else in your additional loads is interfering, or you've got to speed up the PSX units.
Blair
On 2021-08-07 11:40, Robert Wilson wrote:
Thank you for your help! So this is a brand new starter set, so it is the 210+. My wiring is as follows:
Track A from DCS to one terminal strip. Track B from DCS to different terminal strip. Then, off those two terminal strips, I run a black and red to one PSX, then that PSX feeds a bus run for one loop. I daisy chained the second PSX from the first, and that feeds the second bus for the other loop.
However, my two terminal strips connected to the DCS do have a few other wires connected. I have a pair going to the Tam Valley 5amp booster to power my DS64¡¯s. I also have three pairs running off the terminal strips to three Hex Frog juicers. The Tam Vally 5amp booster has it¡¯s own power supply but it hooks up to the DCS track power too per the directions. So basically my DCS track power is connected to the PSX¡¯s, the Tam Valley accessory booster, and three Hex Juicers, all through the terminal strips.
I don¡¯t think I can specifically isolate the voltage to the PS615 because it has the plug connector. I put my meter across the track A and B terminals on the DCS, and when there is a short, those terminals lose voltage.
On Aug 7, 2021, at 11:20 AM, Blair <smithbr@...> wrote: ?Sorry for the cross mailing.
Verify all of these points again:
DCS output is wired to the two PSX units, and nothing else. (i.e. no other track segment, etc.)
One PSX is wired to one portion of the layout, no load
Second PSX is wired to second portion of layout, no load
Short one of the two sections above, and verify that the PS615 is shutting down; you should lose all indications on the front panel of the DCS; your meter should also show a loss of input voltage (not sure how you measured it, as the power supply plug input to the DCS doesn't facilitate probing).
If so, the power supply is shutting down faster than either the short detection in the PSX, or in the DCS, and messing with the delay times of either will be ineffective. I think it's the PS615, and Digitrax should help you out; depending on the age of the unit, "help" could be just a recommendation for a new supply.
It would be ideal if you had an alternate PS615 supply available, (maybe a friend has one?), to demonstrate a different behavior with your PS615 removed from the test.
Blair
On 2021-08-07 10:52, Robert Wilson wrote:
It¡¯s plugged in with the PS615 into the front port. The PSX¡¯s are currently factory default at 3.81 amps. Should I change the trip setting to less amps on those? The DCS is factory default as well. I emailed Digitrax, they weren¡¯t very helpful, deferring me to DCC Specialties, although they did say that I could try closing option switch 18 to put in a delay.
On Aug 7, 2021, at 10:39 AM, Blair <smithbr@...> wrote: ?What is the DC supply to the DCS210+? The original PS615 from Digitrax, plugged into the front barrel jack, or another supply wired via the 7-pin connector? Clearly, the PS is shutting down(overcurrent sensing) before the DCS210+, or the PSX, senses the short. What are the delay times set to for both the PSX units and the DCS?
In case you don't have a manual handy,
That manual is woefully quiet on option switches. More info here:
Though the descriptions are about as cryptic as one could want.
Blair
On 2021-08-07 9:52, Robert Wilson wrote:
Okay, that¡¯s the issue. The volts to my command station dropped to zero when a track was shorted. It¡¯s a Digitrax DCS210. 5amp capacity. How can I fix this issue? I¡¯m new to the hobby. My instruction manual doesn¡¯t mention in CV¡¯s for adjusting current trip.
On Aug 7, 2021, at 9:33 AM, Don Vollrath <donevol43@...> wrote: ?Sounds like the main DCC power source is cutting in and out¡ not the PSX breakers. What is it? And what is the ampere capacity? Is there an adjustable trip point?
Put an AC voltmeter on the main DCC source to verify. It should remain ON when a PSX breaker cuts out due to a short downstream.
DonV
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