Post by glcmich1 on Oct 1, 2023 8:39:42 GMT -8
Hi - DCC issues with the Atlas turntable in the middle of a yard. One set of outbound yard tracks are all wired ‘White/Blue’ - (Kato track terminal connectors) - this is ‘A’, fed by a dedicated terminal block for DCC purposes as a power district. A second set of inbound yard tracks, not directly connected to A, are all wired ‘Blue/White’ and these are ‘B’, and a separate power district.
I have my layout set up with the turntable in between these two yards, so it might represent a reversing section, that includes one approach track wired on the A side, with 4 stall tracks (also on A), and 3 other approach tracks on the B side of the Atlas turntable. The turntable bridge is wired to the A side.
I’m using DCC with a Prodigy Express system, and DCC Specialties PSXX-AR board (so far) on the A side. When I tried to connect the B side to a second PSXX-AR, both boards flipped to red indicating shorts. I removed the B side board. A went back to all green. (The boards are connected to separate DCC bus wire connections off the command station, which feeds a dedicated DCC main power terminal block. I also have other downstream mainline PSX boards and power districts which function just fine). B side tracks are all opposite polarity from A, FYI.
Back to the turntable. When I run a loco onto the bridge from A approach track, no issues. If I run the loco off the bridge onto any B approach track, PSX shorts, and loco stops dead. I’ve tried wiring connections from a B track to the turntable terminals, no luck. Soooo - should I add a dedicated reverser (like a Digitrax AR1) to the turntable bridge terminals itself? I also am thinking about adding an another back onto the B yard tracks, just not a PSXX.
Open to suggestions.
I have my layout set up with the turntable in between these two yards, so it might represent a reversing section, that includes one approach track wired on the A side, with 4 stall tracks (also on A), and 3 other approach tracks on the B side of the Atlas turntable. The turntable bridge is wired to the A side.
I’m using DCC with a Prodigy Express system, and DCC Specialties PSXX-AR board (so far) on the A side. When I tried to connect the B side to a second PSXX-AR, both boards flipped to red indicating shorts. I removed the B side board. A went back to all green. (The boards are connected to separate DCC bus wire connections off the command station, which feeds a dedicated DCC main power terminal block. I also have other downstream mainline PSX boards and power districts which function just fine). B side tracks are all opposite polarity from A, FYI.
Back to the turntable. When I run a loco onto the bridge from A approach track, no issues. If I run the loco off the bridge onto any B approach track, PSX shorts, and loco stops dead. I’ve tried wiring connections from a B track to the turntable terminals, no luck. Soooo - should I add a dedicated reverser (like a Digitrax AR1) to the turntable bridge terminals itself? I also am thinking about adding an another back onto the B yard tracks, just not a PSXX.
Open to suggestions.
