Help! Lionel LCS AMC2 Does not control Atlas Turntable

ted KOGR Forum Member DIGITAL SUBSCRIBER

I have tried to follow the directions to use a Lionel LCS AMC2 to control the speed of an Atlas Turntable. Have attached how it is wired - after programming as directions say, the turntable moves at a constant speed and does not respond to the Cab2 throttle wheel. I programmed it by selecting ACC, assign a two digit number - press set - press AUX1 then 2 for a variable DC motor.- press PGM switch on AMC2. then to access I press ACC, AUX1 and the turntable is rotating at a contstant speed - i turn the Throttle wheel counterclockwise - no change in speed. as i turn the Throttle Wheel there'd lights on the LCS AMC2 blinks rabidly as i turn it - but no change in the turntable speed. Not sure what i have done wrong - Maybe the LCS AMC2 cant work with the Atlas Turntable?

Help please

Attachments

Hide

Images (1)

2/10/206:52 PM

❤️ 0

Original Post

Replies sorted oldest to newest

Stephen GOGR Forum Member DIGITAL SUBSCRIBER

Hope someone can answer your question. I would like to try that myself.

2/12/205:42 PM

❤️ 0

Dave OlsonOGR Forum Member DIGITAL SUBSCRIBERFORUM SPONSOR

Sounds like it is still programmed as a continuous type motor. To test, press the direction button on the Cab2 and see if the turntable will go in the opposite direction. If not, then something else is wrong.

A few things to try:

Make sure that the accessory power plugged into the AMC2 is not flipped. I.E. hot and common are where they belong. That can cause damage.
Bypass your sensortrack to see if that might be causing an issue
try reprogramming the AMC2 to a different ID. Try 1 just to see if it'll take it and work.

There's no reason the Atlas turntable wouldn't be compatible. It's just a DC motor.

2/12/206:09 PM

❤️ 1

ted KOGR Forum Member DIGITAL SUBSCRIBER

thank you Dave - i will try that

2/13/208:53 AM

❤️ 0

ted KOGR Forum Member DIGITAL SUBSCRIBER

Dave - i tried the direction button and it does not stop or change turntable direction - i will try the wiring suggestion

ted

2/13/208:55 AM

❤️ 0

ted KOGR Forum Member DIGITAL SUBSCRIBER

Dave - well i checked the wiring - i disconnected the Sensor track and just plugged the cable from CAB2 base directly to AMC2 - i double checked the wiring red all to + and black all to - when i tun on power to aux transformer output measures 14v ac at the input to the AMC2 - the turntable starts to rotate at a constant speed - i tried programming the AMC2 as an accessory with "1" as ID, then presses AUX1 then pressed 2 for variable DC motor control. as i did each of these the red light on the AMC2 blinks rapidly and then returns to slowly blinking - i pressed PGM switch and the light goes out - but turntable still rotates - so i then go to ACC press 1 then AUX1 then 1 - rotating the know causes the red light to blink rapidly but no change in turntable speed. i tried to press direction button and the red light blinks rapidly when i press it - but there is no change on the turntable - it seems to me that the AMC2 is getting the signal from the Cab2 but it is not changing the output to the turntable.

could the AMC2 be "defective" i measured 7vdc on output to turntable motor - attached pictures of the AMC2 and the turntable motors connection

i feel very stupid - i must be doing something wrong for something so simple confused