NCE SWITCH-8 Manual - page 4
Reversing the polarity of an output
:
Use OPs mode programming for accessories (“PROG” followed by “7” on NCE
systems) to program CV33 to a value of 1.
If your DCC system does not support
Ops
mode programming for accessories you can
just swap the two wires to the switch machine.
NOTE:The NMRA commands for Accessory OPS mode programming has been changed. Only NCE system
versions later than October 20, 2006 (Power Cab version 1.28) issue the new type programming command.
There are no other known DCC systems that support OPs mode programming for Accessory or Signal
decoders at this time.
Other technical stuff:
v
We have successfully controlled two Tortoise switch machines with one decoder
output when used in a crossover. We can't guarantee this will work in all cases.
v
The outputs of the decoder are always on to prevent the switch machine from backing
off due to the spring of the turnout throw mechanism.
v
See the diagram below for turnout position indicator light wiring. LEDs are wired in
series with the switch machine to indicate which position the turnout is thrown. Most
LEDs will handle up to 25mA, the switch motor acts as the current limiting device for
the LEDs. We use red and green LEDs but any color will do. The switch machine will
run a bit slower with LEDs installed due to about a 1.5 volt loss in the LED.
TIP:
If you use power routing turnouts such as Peco Electro-Frog, Shinohara or Walthers
we suggest wiring a #1156 automotive taillight bulb in series with the points of the
turnout (see above). This will prevent short circuits from shutting down your power
booster in the event you enter the turnout from the frog end without aligning the points.
The
warranty is voided if the decoder is miswired, connected to more than 22 volts, or
used with switch motors drawing more than 40mA.
Warranty
This decoder is fully factory tested and warranted against manufacturing defects for a period of 1 year. As the
circumstances under which this decoder is installed can not be controlled, failure of the decoder due to
installation problems can not be warranted. This includes misuse, miswiring, operation under loads beyond the
design range of the decoder or short circuits in the locomotive manufacturer’s factory wiring. If the decoder fails
for non-warranted reasons NCE will replace the decoder, no questions asked, for $10 US plus $2 shipping. For
warranty or non-warranty replacement send the decoder (an any payment, if required) to:
NCE Warranty Center
899 Ridge Road Webster, New York 14580
05240136
05240136
The terms Silent Running, Power
Cab
, Power Pro, Powerhouse Digital Command Control, ProCab
and
the NCE logo with
“Power of DCC” slogan are trademarks of NCE Corporation.
Tortoise is a trademark of Circuitron, Inc.
L
ast revised:
8 November 2006
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