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Sticking my toe in the Command Control waters, on a shoestring. Picked up a Cab-1L and Base-1L, and plan to install a Cruise Commander in a WBB Berkshire that currently has a bad reverse board. Also getting a couple Switch Commanders for good measure No experience with Legacy or TMCC, but lots of general electronics.

What trouble/surprises should I expect? 

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John, doesn't the ERR kit need something like an axle cam to trigger the chuff?  I guess not hard to do, never done one as I preferred using the PS2 kits for steam (course you need a flywheel) and ERR for diesel.

I have a WbB 4-6-2 and there's an arm on the valve linkage that I think made contact with a microswitch to enable the chuff:

DSCN0479_306

DSCN0475_302

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Last edited by Bob Delbridge

It's a flywheel tech driven sensor board that generates the chuff signal based on drive motor revs.  This board mounts on the side of the motor, and the flywheel gets a tach strip like you see for MTH PS2 or TAS EOB installations.  The number of pulses per chuff is programmable during installation to allow any chuff rate you desire.  It's to replace the reed switch and magnets on the drive wheels or tender wheels to generate the chuff signal for TMCC upgrades.  The chuff signal out of this board feeds the TMCC electronics and the Super-Chuffer.  This can also be used without the Super-Chuffer if you just want four chuffs/rev.

PLCProf posted:

Availability? Didn't see it on Henning's web site.

It's not available quite yet, I have used about half a dozen in projects to make sure things are all laying flat and to work out any installation kinks.  I also have to come up with the installation instructions, but it should be available soon.

Bob Delbridge posted:

John,

Will this chuff board work with anything other than TMCC?  What inputs/outputs?  Sounds (pun) like something I'd like to try on my BPRC engines.

Bob, the requirements of this board is 5V DC for power at about 20ma.  It's "input" data is the tach sensor reading the stripes on the flywheel.  There is also a set of connections for a calibration switch, that's only used to set the chuff rate.  I typically use clip leads to jumper the cal switch connection and then just remove them.  I discovered the yellow jumper stuck up too far in some installations, and it's really not needed after installation. 

The board outputs a 10ms TTL compatible (0-5V) pulse at each chuff time.  The only "requirement" is the 5V common for the power supply is also the common for the output chuff pulse.

John,

Is the tach tape the same regardless of engine type (1 tape fits all) or is it necessary to calculate what size stripes are needed like in PS2?  Here's the diagram for wiring the MYLOCOSOUND into the RCS system, but I need to find out what voltages are used:

MYLOCOSOUND WIRING

It may be that your board can be used instead of the MYLOCOSOUND and the RCS LT-SW4v2 boards.

Is all that is needed for your board the tach tape, 5v input and speaker for output?

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