Digitrax Zephyr xtra, Руководство пользователя

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ing detectors on the layout in order to provide the two way communication
required for OPS Mode read back.
16.5programmingerrorMessages
When you are programming decoders, there are a few error messages you may
encounter.
dnd means there is an open circuit on the program-
ming track and no current draw is detected by the
programmer.
dna means there is no acknowledgement from the
decoder typically during decoder write operations.
dnr means the DCS51 was not able to read the
decoder.
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 DCS51.
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.
16.6readingBackCvvalues
Your DCS51 can read back the CV data values programmed into your
decoders. Most likely, you will use your programming track for reading back
CV data values.
To read back CV values using a programming track:
1. Be sure that only the locomotive you want to read back is on the program-
ming track.
2. Press the
prOg
key to enter programming mode. The DCS51 will display
one of the programming modes available.
Once the mode you want to use is on the screen you can go to step 3.
For example, to select Direct mode, stop pressing the
prOg
Key when the
following screen appears: