RUN
PRGM
NO SMK
SMK
SND
NO SND
RUN
PRGM
NO SMK
SMK
T
o select a single operational state for
your powered locomotive (for example,
forward only), you can deactivate the
Command reverse unit’s sequencing
function with the Command reverse unit
switch.
Get your powered locomotive moving in
the desired direction, then
slow it down
without stopping.
Set the Command reverse
unit switch on the POWERED unit to PRGM.
Refer to Figure 1 for the location of the
switch. The locomotive set is now “locked”
into your chosen direction.
When you no longer want single-direction
operation, just slide the Command reverse
unit switch back to RUN.
Your locomotive’s reverse unit will
“reset” to forward after any power
interruption lasting five seconds
or longer, regardless of the
original locked-out direction.
Locking your locomotive set into a single operational state
Transformer operations
Figure 1. Switch locations
5
Note!
FRONT
FRONT
Powered Unit
Non-Powered Unit
Command
reverse unit
switch
Command
reverse unit
switch
Smoke unit
switch (see
page 18 for
details)
Smoke unit
switch (see
page 18 for
details)
RailSounds
sound
system
switch
Summary of Contents for Union Pacific ALCo PA
Page 47: ...Notes 47 ...
