Is there a way to limit speed using this remote commander to run a PS2 engine driven with a Z1000 transformer and controler?
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THe whole purpose of the DCS Remote Commander IS to control the engine's speed, sound, etc. You don't use the controller, such as a Z-Controller. You plug the brick in, get a full 18 volts and run in command mode. You vary the speed via remote despite there being 18 volts on the track. You can run as fast or as slow as you want regardless of the voltage.
If you mean to limit it to 50 sMPH or whatever no matter how much you hit the "+" speed rocker switch then no.
You can half-baked facsimile of speed-limiting using the variable-voltage controller by providing the Remote Commander base with less than the full unadulterated Z-1000 brick voltage from the barrel-coax connector. The actual max speed would vary with the engine, load, grade, curves, etc but it will be slower. In other words you may be commanding 70, 80, 90 sMPH etc. but there will not be enough track voltage for the engine to get there.
There could be less reliable DCS command-signal throughput from using the noisy voltage coming from a the variable-voltage controller - your mileage may vary.
Thank you very much to both of you.
Using the Z controller is a good way to limit top speed with the remote for children etc... Similar to what can be done with TMCC. Voltage does not have to be a max for it to work. G
You also might be able to use the accessory 14 volts from the Z-1000 if the Z-Controller causes problems. I have never tried this, however and I am not sure how many watts you will get from the acc outputs? Could be insufficient to operate a train? As others have said, limiting the voltage however you do it, will limit the speed.