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11.5 Programming Error Messages
When you are programming decoders, there are a few error messages you may
encounter. The messages will scroll in the Scrolling Help Text line.
“Program Track Empty” means there is an open circuit on the pro-
gramming track inputs and no current draw is detected by the pro-
grammer.
“No Decoder ACK Pulse!” means there is no acknowledgment from the
decoder typically during decoder write operations.
There are many causes for these error messages but most can be solved by
checking the following:
1. Be sure the programming track is connected properly to the DCS52.
2. Be sure a decoder is correctly installed in the locomotive with all motor and
pick up connections made correctly.
3. Be sure the loco with decoder correctly installed is making electrical contact
with the programming track and that it remains in contact with the program-
ming track until programming is complete.
4. Be sure there is not too much current draw from lamps and other loads from
the locomotive that is being programmed.
5. Be sure the decoder you are programming supports the programming mode
you are using. Not all decoders support all programming modes.
11.6 Configuration Variable (CV) Programming Notes:
1. Check your decoder manufacturer’s manual for factory settings, recom-
mended CV value ranges and for instructions on resetting the CVs to facto-
ry settings.
2. It is good practice to record the changes you make to the CV values for
each decoder/locomotive combination. This will allow you to prole each
locomotive type for programming similar locomotives.
3. Resetting your decoder CV values to factory settings can eliminate some
problems caused by inadvertently changing a CV value.
12.0 MU (Multiple Unit) Operations
It is not uncommon to see two, three or even four diesel locos pulling in consist
at the front of a train. Sometimes, there is a locomotive added in the middle of
the train or at the end of the train to give “helper service” to the head end loco-
motives. This is called Multiple Unit Operation or MU operation. With DCC,
each locomotive is separately controlled. But in the case of MUing we would
like to have more than one locomotive address controlled by a single throttle to
simplify MU operation.
Your DCS52 uses universal consisting to make MU operations simple and easy
to do. This is the most exible and realistic method of MUing available. You
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