PSX-AR Manual Rev: P Software Rev: N
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• If you have two reverse loops that touch each other, a train crossing the gap will
cause both to reverse at the same time, which will preserve the short circuit and
cause both to trip. In this case, select one of the PSX-ARs to be the “secondary”.
Set CV55=1 in the secondary PSX-AR. Adjust CV65 [see also CV65 below] such
that the secondary PSX-AR always waits for the other PSX-AR to reverse first.
You may also need to adjust the delay time of any PSX breaker that is adjacent
to the secondary PSX-AR. While a better design is to have a length of “normal”
track longer than your longest engine between two reverse loops, this cannot
always be accomplished.
CV57 determines the amount of time in seconds the Automatic Reset function will wait
before trying to restore track power after an over current condition is detected and the
PSX-AR has tripped.
• The CV57 default value is 2.
• If you notice that your booster shuts down after several automatic reset cycles,
try increasing the time between resets.
• If increased reset time does not solve the problem, you may need to use the
Manual Reset mode [see Section B, item 13].
CV63 initiates a PSX-AR Factory Reset.
• Using the Program On Main [POM] programing mode of your DCC system, set
CV63=42.
• You will see D6 flash.
• After D6 flashes, all CVs and addresses are returned to their original factory values.
• The CV63 default is 0. Setting CV63=42 will not change the CV value, but it will reset
the PSX-AR.
CV65 controls the length of delay enabled by CV55.
• Valid CV65 values are 1 to 255.
• The delay in milliseconds is the CV65 value divided by 8 [e.g. a value of 80 = 10ms
delay].
• The ideal value for CV65 is the smallest value that still results in reliable layout
operation.
• If you are experiencing nuisance trips, try increasing CV65 by 8 until the nuisance
trips stop.
• A value of CV65=128 should work for almost all layout problems. Remember, the
PSX-AR is supposed to turn off when it sees too much current. A “nuisance” trip is
still an over current condition. Make sure the “nuisance” condition is acceptable
before you increase the trip delay of the PSX-AR and hide a real layout issue.
• The CV65 default is 8 which will be an added delay of approximately 1ms. It is
selected as the minimum delay to use in conjunction with a PSX-AR in a double
reverse loop situation, although your layout may require more delay.
For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates
the PSX-AR has received the information, stored it, and verified the stored data match the data you sent.
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