Being a controls engineer I erroneously assumed a duty cycle similar to a double solenoid detent pneumatic valve and destroyed three of my four turnouts before I realized that they were overheating. I had written a little subroutine that exercised them continuously to wear them in a little. Lesson learned!!! I ordered four new turnouts and installed them. One of them would not respond and after thirty minutes of pondering what I did incorrectly, I checked the resistance between the three leads and discovered that the each measured 12ohms instead of 24ohms and it was a dead short between the two coil sides. Removed the metal plate and the short went away, bad from the factory.
Purchased another...I am now using a 50msec. pulse to shift the direction. The 1769-OWI relay outputs that I am using have a 10msec. response time so I might shorten the pulse until they do not respond and then bump it back up. I am using a 12vac transformer for power. I might eliminate the transformer and use the 24vdc that I have available with a shorter pulse duration. I might even use a 1769-OB16 with the 24vdc and put a capacitor on each output to protect the SS device from the inductive spike.
The little Plymouth Diesel that I am using to test the track does not pass over the turnouts smoothly, I am very disappointed and do not have the time to try to tweak them with a file.
The ConCor Blue Goose Loco/Tender (purchased used) evidently had some wear on the insulation of the fine wires between the two, they came in contact with each other and evaporated like a fuse. I realize they do not want the conductors to be visible but a heavier ga. with good insulation in black would have been much smarter.
My expertise is industrial control systems (plcprofessor YouTube channel and www.plcprofessor.com) and I am not a model railroader but I do love trains. This is a Christmas tree layout to reuse every year.
Thank you to everyone who provided advice and good railroading...
Purchased another...I am now using a 50msec. pulse to shift the direction. The 1769-OWI relay outputs that I am using have a 10msec. response time so I might shorten the pulse until they do not respond and then bump it back up. I am using a 12vac transformer for power. I might eliminate the transformer and use the 24vdc that I have available with a shorter pulse duration. I might even use a 1769-OB16 with the 24vdc and put a capacitor on each output to protect the SS device from the inductive spike.
The little Plymouth Diesel that I am using to test the track does not pass over the turnouts smoothly, I am very disappointed and do not have the time to try to tweak them with a file.
The ConCor Blue Goose Loco/Tender (purchased used) evidently had some wear on the insulation of the fine wires between the two, they came in contact with each other and evaporated like a fuse. I realize they do not want the conductors to be visible but a heavier ga. with good insulation in black would have been much smarter.
My expertise is industrial control systems (plcprofessor YouTube channel and www.plcprofessor.com) and I am not a model railroader but I do love trains. This is a Christmas tree layout to reuse every year.
Thank you to everyone who provided advice and good railroading...