Inc Sound Module Decoder - Manual

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TABLE VII: CV54 Values
CV54
Values
Switching
Speed
Torque Com-
pensation
Decoder Lock
00 O On Enabled
01 On On Enabled
16 O O Enabled
17 On O Enabled
64 O On Disabled
65 On On Disabled
80 O O Disabled
81 On O Disabled
8.5 Scaleable Speed Stabilization (Back EMF)
Digitrax decoders are equipped with scaleable speed stabilization (adjustable
Back EMF). This LocoMotion feature can help smooth out operation in the
low end speed range. It allows you to run locomotives at the same speed no
matter the track grade. It can also help improve operation of steam locomo-
tives. Digitrax decoders offer the ability to adjust the amount of speed stabili-
zation used by a decoder. Digitrax FX
3
decoders are shipped with default speed
stabilization values that improve the operation of most locomotives.
TABLE VIII: Scaleable Speed Stabilization-Adjustable Back EMF CVs
Scaleable Speed Stabilization (Back EMF)
CV# Purpose Default
Value
Range
55 Static compensation 128 00-255
56 Dynamic compensation 80 00-255
57 Amount of speed stabilization (Intensity) 06 00-15
CV55 controls the static compensation or how much the decoder considers
the difference between the current motor and locomotive speed and the target
speed set on the throttle when determining the next speed command to send to
the motor. This is like the stiffness of a spring. The stiffer the spring, the more
compensation you will get. CV55 values can range from 000-255. Higher val-
ues give a more intense reaction and lower values give less intense reactions.
The factory default setting for CV55 is 128. It will have no effect on decoder
operation until you program CV57 as described below.