A question was asked in the LGB Anniversary Ge 4/4 II thread recently about F9 and ABV. ABV is somewhat explained in the Märklin Digital Club Newsletter, Vol. 28 No. 2.
ABV anglicized stands for Acceleration/Breaking Delay - the momentum effects that can be programmed in the decoder. Momentum effects are normally active in a mfx decoder. The F9, ABV function key turns the momentum effects off. Why?, you might ask. Well, perhaps in shunting maneuvers when you want the loco to respond immediately to start/stop throttle changes or if the momentum effect is about to cause a crash as an alternative to the emergency all "STOP".
I can confirm this is exactly what it does from testing earlier today to verify it's operation. Turning momentum off is particularly noticeable when the acceleration and braking delays a are set to give more realistic momentum effects.
Phil S.
ABV anglicized stands for Acceleration/Breaking Delay - the momentum effects that can be programmed in the decoder. Momentum effects are normally active in a mfx decoder. The F9, ABV function key turns the momentum effects off. Why?, you might ask. Well, perhaps in shunting maneuvers when you want the loco to respond immediately to start/stop throttle changes or if the momentum effect is about to cause a crash as an alternative to the emergency all "STOP".
I can confirm this is exactly what it does from testing earlier today to verify it's operation. Turning momentum off is particularly noticeable when the acceleration and braking delays a are set to give more realistic momentum effects.
Phil S.
