Hi Jerry,
If you read this before contacting me, try this:
cab 1 L with power on from your transformer to the track you have wired from the tpc but take your conventional engine off the track as we do not know yet if the tpc is set for conventional mode.
cab 1, press tr or eng and the number you assigned your tpc, press "m" on the bottom of the cab 1 and then the set button. The red light on your command base should be blinking every time you press any cab 1 buttons-this is normal and the tpc green command light will blink any time you press any cab 1 button. By pressing the "m" button and set, keeps your tpc set in conventional mode. When you turn the power of and turn it on later on, it will stay in conventional mode as you pressed the set button. If you do not press the set button, your tpc will revert back to command mode( full power to your track) when you turn the power off and come back later and turn the power on. That is the default setting of a tpc.
Your tpc needs to be in conventional mode so you can vary the voltage with your cab 1 red knob. Think of the knob as your zw handle. Put an engine on the track. You can set the handle on 18 volts but press the eng or tr button of your assigned tpc number. Then rotate the red knob and the green light that is next to the command green light on the tpc will slowly illuminate, you are varying the voltage. The engine's headlight will get brighter as you rotate the cab 1 knob to the RIGHT. If your engine eunit is set to reverse/ forward, press the direction button on the cab1 to your engine goes forward and use the knob to control your engine speed.
You can shut the power off to the track even if your zw is still powered to the track by pressing eng or tr and your assigned number, Aux 1 button and 0, your power will turn off.
I think the cab1L gives about 100 feet remote operation from your layout. You get walk around control of your layout.
I hope this solves it unless something is not wired correctly.