M.T.H. Premier 2-4-1A Operator's manual - Configuration Variables (Cv)
Premier 2-4-1A Mountain Steam Locomotive
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Configuration Variables (CV)
Configuration Variables used on MTH PS3.0-equppied engines.
CV1
CV2
CV3
CV4
CV5
CV8
CV17
CV18
CV19
CV21
CV22
CV23
CV24
CV25
CV29
CV52
CV53
CV54
CV55
CV63
CV64
CV66
CV67-
CV94
CV95
CV105
CV106
CV115-
CV170
Short Address: 1-127 are the valid addresses
Start Voltage (CV52, bit0 must = 1. This will enable PWM Mode)
Acceleration Rate (CV52, bit0 must = 1. This will enable PWM Mode)
Deceleration Rate (CV52, bit0 must = 1. This will enable PWM Mode)
Max Voltage (CV52, bit0 must = 1. This will enable PWM Mode)
MFG ID. MTH =27. Also used for various resets.
High Byte of Extended Address
Low Byte of Extended Address
Consist Address (bit 7=1 on an engine will tell the engine it’s reversed
in a consist)
Defines active Function F1-F8 for the active consist
Defines active functions for FL and F9-F12 for the active consist
(bit 0=1 will tell an engine that you want it’s FL control to operate under
the consist address – bit1-0/bit2=1 will configure the FL control for a
reversed engine in a consist)
Consist Acceleration Rate
Consist Deceleration Adjustment
Speed Table Select
Decoder Configuration
MTH PWM Mode Configuration
MTH Acceleration (1/8 *sMPH/s). For example - a Value of 8 written
would give you 1sMPH/s acceleration
MTH Deceleration Rate (1/8*sMPH/s)
Factory Reset Alternate method: Send a value of 55 to CV55 on address
55 and the model will go back to Factory Default
MTH Consist Acceleration Rate (1/8*sMPH/s)
MTH Consist Deceleration Rate (1/8*sMPH/s)
Forward Trim(CV52, bit0 must = 1. This will enable PWM Mode)
Speed Table Selection (CV29 bit 4 must be set to 1 then CV25 must be
set to 0 or 1)
Reverse Trim (CV52, bit0 must = 1. This will enable PWM Mode)
User ID #1 – General Purpose use for customer
User ID #2 – General Purpose use for customer
MTH Function Assignments – See table of supported CV’s and manual
section on how to re-arrange them for further information
Note: The engine address has to be something other than address 55 (see pg. 25)
engine rapidly. To enable the Brake Sounds press the F26 button (disable F26). Brake
Sounds are On by default.
Cab Chatter – F27. Cab Chatter occurs when the engine is sitting at idle. There are
various times when the crew will talk to each other when the engine is sitting at idle.
Pressing the F27 button (enable F27) will disable the Cab Chatter. Pressing the F27
button again (disable F27) will enable Cab Chatter. Cab Chatter is On by default.