Continuing AC-12 Qusetions

[DocGeoff]

Have my AC-12 ecodered, and it preforms beautifully except I have to change the booster on my Digitrax Super Chief to HO voltage to make it respond to the throttle. I have to gt beyond 65 before the AC-12 moves. Once it does it responds to 90 on the DT-400 throttle. No response before 65 or so. I also have to change the booster to HO, to make it move, Am I kiling the engine/decoder????? What's the deal??
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[John]

you're going to blow something up ... check your start voltage on the decoder..

[victor miranda]

this is from DC readings.
the motor in the ac-12 seems to want a high voltage.

mine will not run at less than 6 volts.
the current is about 70 ma then also.

I believe you can expect to need to move the starting voltage up.
think v-min at 5 volts. and v-max, well... 12v.

luck...
victor

[bobdobbs]

Hi

Running one AC12 with a TCS DP2X decoder, no cv adjustments except BEMF is turned on.  Using a MRC Prodigy Advance system, starts to creep on step 1, other AC 12 using a Digitrax DZ125 PS with BEMF on (or whatever Digitrax calls BEMF) and it performs nearly identically.  Now one is at IM for running gear failure, but until it blew a side rod, It was running very well.  Did you lubricate according to IM's manual?

Dobbs