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send proportionally less voltage when full speed is called for.
OPS PROG 11:22AMOPS PROG 11:22AM
OPS PROG 11:22AMOPS PROG 11:22AM
OPS PROG 11:22AM
MAX VOLTAGE: _MAX VOLTAGE: _
MAX VOLTAGE: _MAX VOLTAGE: _
MAX VOLTAGE: _
A value of 192 will cut the maximum speed to 192/255 (about 75%) of the track voltage.
Most decoders interpret a value of 0 to mean 255.
MID SPEED VOLTAGE (CV6)
This is the amount of voltage applied to the motor when the middle speed step (14 or 64
depending on speed mode) is requested. A value of 128 means to send about ½ the
available track voltage (128/255 of the voltage) to the motor.
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OPS PROG 11:22AM
MID VOLTAGE: _MID VOLTAGE: _
MID VOLTAGE: _MID VOLTAGE: _
MID VOLTAGE: _
Lower or higher values will send proportionally higher or lower voltages at mid-speed.
Most decoders interpret a value of 0 to mean 128.
ACCELERATION (CV3)
With this CV set to 0 the decoder will be in what is commonly called ‘direct drive’. The
decoder will instantly jump to the speed requested by the throttle. You can add
momentum by adjusting this parameter.
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ACCELERATION: _ACCELERATION: _
ACCELERATION: _ACCELERATION: _
ACCELERATION: _
A value of 1 will force a delay of .007 seconds between speed steps in 128 speed mode
(.032 seconds in 28 speed mode). This is equivalent to .896 seconds (.007 x 128
speeds) to go from speed 0 to full speed. A value of 10 will yield about 8.9 seconds to
full speed.
DECELERATION (CV4)
Deceleration works to delay the slowing down of the motor with the same timing as
acceleration.
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DECELERATION: _DECELERATION: _
DECELERATION: _DECELERATION: _
DECELERATION: _
MOTOR PWM FREQUENCY (CV9)
DCC decoders almost always drive the motor of the locomotive with Pulse Width
Modulation (PWM). This is a series of full voltage pulses that vary in width from very
narrow for low motor speed to very wide providing higher power to the motor. How often
the pulses are sent is called the frequency.
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PWM FREQ: _PWM FREQ: _
PWM FREQ: _PWM FREQ: _
PWM FREQ: _
The frequency is adjustable on some decoders. Settings for this CV vary so consult your
decoder manual for the proper value. If your decoder is capable of ‘silent’ operation
usually a 0 is required.
NCE TORQUE COMPENSATION KICK RATE (CV116)
Newer NCE decoders provide Torque Compensation for smooth low speed operation.
Torque Compensation gives a steady stream of ‘kicks’ to the motor when running at very
low speeds. You can adjust how often the motor is kicked (Kick Rate) and how hard it is
kicked (Kick Strength). CV116 controls the rate.
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