Steam Q1a Operation Manual Rev 4.1.2
13/24
24 August 2006
Doppler Operation (F6)
With DCC, you can trigger the Doppler Effect by quickly interrupting the whistle signal in the same way as described under Analog
Operation. Or, you can use the function key (F6) assigned to the Doppler Effect.
•
Start the Whistle and/or Bell by pressing and releasing their function keys.
•
Press F6 to hear the Doppler shift. A few seconds after the whistle button is turned off with the F2 key the steam locomotive sounds
return to normal.
Note: If you do not turn on either Whistle or Bell, the Doppler shift will still occur but will be less dramatic.
Note: If the Bell was on, it will shut off prior to sounds returning to normal.
Squealing Brake and Flange Sounds (F7)
Quantum provides automatic Squealing Brakes as a locomotive slows to a stop. The operator can also control squealing sounds for
continuous and variable brake sounds for protracted stops or to simulate the sounds of squealing wheel flanges on curved track.
•
To enable Automatic Squealing Brakes operate the locomotive over 40 smph (64 skph). Squealing brakes sounds will then sound
automatically when the speed is reduced to less than 20 smph (32 skph).
•
Pressing the F7 key when the locomotive is moving at any speed will manually activate Squealing Brake sounds, and repeated
pressings while the Squealing Brake sounds are occurring will continue the sounds uninterrupted.
Note: If you slow the locomotive too quickly, the brake sounds will terminate abruptly when the locomotive stops and enters Neutral.
Note: If you lower your throttle to speed step 0 on a moving locomotive, the F7 key will apply Air Brakes to slow the locomotive. See next section.
Air Brakes (F7)
If you have selected any non-zero deceleration inertia or momentum value in CV 4 and/or CV 24, the F7 key can be used to apply Air Brakes
to stop the locomotive more quickly than it would normally stop from the inertia settings
27
. To use Air Brakes:
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Turn the throttle down to speed step 0 on a moving locomotive; this enables the F7 key to act as a brake.
•
Press the F7 key. Hear a brief brake squeal sound and air being released from the brake lines continually. The longer the air is
released the greater the braking action.
•
Press the F7 key again to stop the air release. The train will continue to slow at the last braking value.
Note: F7 will apply brakes when set to1 and stop the air release when set to 0. Depending on the initial setting for F7 when you turn your throttle
down to speed step zero, you may need to press the F7 key twice to first apply brakes.
•
If you want to apply more braking, press the F7 key again to release more air. When you reach the desired amount of braking, press F7
again to stop the air release.
•
Turn up the throttle to any value above 0 to release the brakes; this action resets the locomotive’s deceleration to a value determined
by the sum of CV 4 and CV 24.
•
If the locomotive is in Neutral when the F7 key is pressed, the Cylinder Cocks will arm
28
.
Note: If the throttle is set to any speed step except 0, Air Brakes are not enabled; instead the F7 key will now manually activate Squealing Brake/Flange
sounds but will not affect the locomotive’s deceleration.
Note: If the direction state is changed while moving, F7 is enabled to act as a brake without the need to reduce the throttle to speed step 0. After stopping
and changing direction, the loco will accelerate back to its original speed.
Three Stages of Steam Locomotive Shut Down: 1. Disconnect, 2. Standby, 3. Total Shut Down (F9)
Locomotive Shut Down has three distinct stages that you can control. Each stage is entered by double pressing the F9 key
29
.
Stage One: Disconnect
•
Double press the F9 key in Neutral to enter Disconnect. The motor drive will be disabled. Once you hear the Long Air Let-off after
entering Disconnect, which represents the locomotive’s reverse lever being placed in the neutral position, the throttle can be moved
up and down without the steam locomotive moving. Instead, you will hear the sound of steam gradually being vented through the
throttle. All Function Keys are active in Disconnect.
•
To leave Disconnect, either double press the F6 Start Up key, as described in the Start Up section or double press the F9 key again to
reach Standby, the next stage of Shut Down.
Note: There is no affect on the throttle Sound-of-Power from Dynamic Brakes being on in Disconnect as there is in diesels.
27 CV 4 and CV 24 determine the deceleration rate. Applying the brakes increases the deceleration rate temporarily.
28 If the optional Cylinder Cocks feature is not include in your model, the F7 key will produce a long Air Let-off.
29 Double pressing is defined as two F9 commands sent within two seconds. Note that the F9 key may have to be pressed three times, due to the DCC command station and
locomotive having different initial states for F9. Double pressing ensures that Shut Down stages are not entered or exited accidentally.
