@harmonyards posted:How exactly are you concluding actual motor consumption being delivered via the driver portion of the board set?……and can you conclude consumption (amps) when the locomotive is on your layout at the point of failure?……you’d have to correct me if I’m wrong, but if you’re pulling your amp readings from the AC output, ie; reading it from the rails, that’s a different deal than what’s happening between the driver and the DC motors….in other words, the board set might be consuming what’s considered tolerable, but what’s happening between the driver and the motors might not be,……
Pat
Measuring the current input into the TIU with the motors running and not running, then subtracting the difference. Unless there are current multipliers or transformers in the PS 3 board, the RMS current should be continuous. As a check, the current I got with the roller test where the meter was in one of the leads to the rollers, matched the current input to the TIU.
