TMCC®* compatible conversion
Re-purposing Electric RR Co.'s Mini Commander with Custom Software.
S Helper's SW-9 and SW-1 Locos with TMCC
Click on images for larger view
S-Helper-Service
SW-1,SW-9
TMCC®*
compatible
conversion
Re-purposing
Electric
RR
Co.'s
Mini
Commander
with
Custom
Software.
S
Helper's
SW-9
and
SW-1
Locos
with
TMCC
Click
on
images
for
larger
view
 |
 |
| The
S
Helper
Service
SW-1
is
the
smallest
loco
I
have
converted
to
TMCC
yet..
To
do
the
conversion
I
used
a
Mini
Commander,
a
new
product
from
the
Electric
RR
Co.
Designed
as
a
multi
purpose
unit.
It
is
designed
as
an
Accessory
and
Switch
control
unit.
The
Software
used
in
this
application
is
a
special
custom
written
version
. |
The
Mini
Commander
just
fits
by
removing
it's
connectors
and
wiring
the
power
and
motor
leads
directly
to
the
board. The
Mini
straddles
the
motor's
drive
coupling.
The Mini Commander's small size (.9 x 1.9") makes it practical to install in most anything I
used
a
Molex
connector
for
the
headlights
to
aid
in
the
shell
removal.
A
4.7uf
NP
capacitor
must
be
added
across
the
motor
leads |
 |
 |
| I
removed
the
mounting
bosses
in
the
shell
to
make
additional
clearance
room.
The
motor
diodes
were
soldered
directly
on
the
board
where
the
HC-1
and
HC-2
connectors
were.
The
Triacs
run
very
cool
with
the
DC
can
motor.
Two
external
diodes
(1n4004)
are
used
for
the
motor.
One
on
each
HC
output.
HC-1
is
forward
and
the
HC-2
is
reverse.
The
antenna
is
just
piece
of
solid
wire
(red
in
the
pictures).
|
A
custom
made
heat
sink
for
the
HC-1
and
HC-2
triacs
also
serves
as
the
mount
for
the
board.
Since
the
power
is
isolated
from
the
chassis
the
heat
sink
doesn't
need
to
be
isolated
from
the
chassis.
The
LC-1
an
LC-
2
outputs
are
used
for
the
headlight
control The heatsink is made from 1/32 aluminum sheet metal. The triac screw hole is drilled with a #52 drill and tapped 2-56 through both holes. and is mounted to the chassis with the screws that held the original headlight connector board that was removed. |
 |
 |
| This is a gorgeous little loco that performs beautifully | |
|
Wiring Diagram. I did not use the program run switch as the Softset™* program allows programming the unit from the Cab-1. |
|
Here is another SHS SW-1 conversion project. |
| SHS SW-9 | TMCC Conversion |
 |
 |
| The SW-9 Heatsink is a simpler design than the SW-1. It required the drilling the and tapping the frame for a 2-56x1/8" mounting screw. The 4.7uf NP cap is across the motor connections. | I removed the HC and LC connectors and wired the motor diodes and Molex headlight connector directly to the board. |
 |
 |
| Not a hard conversion to do. The mounting boss in the shell has to be removed as in the SW-1 installation. | |
 |
 If your Loco has LED headlights you need to make a replacement LED board. It is made from a piece of PC vector board. |
|
The LED board has rectifier diodes and current limiting resistors on it. |
The
SW-9
is
a
great
running
and
looking
loco. * TMCC® is a registered trademark of Lionel,LLC * Softset™ is a registered trademark of the Eelectric RR Co. |
| See
Also: SHS F3 TMCC & Sound Conversion |
See
Also: SHS F& TMCC & Sound Conversion |
 |
 |
| See
Also: SHS 2-8-0 TMCC & Sound Conversion |
|
 |
|