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The EMD GP22ECO is a 2,150 hp (1,600 kW) B-B road switcher diesel-electric locomotive rebuilt by Electro-Motive Diesel and Norfolk Southern's Juniata Shops. Initially EMD built two GP22ECO demonstrators, one based on a GP9 and one based on a GP40,[1] but thus far all orders have been for conversions based on EMD GP40 and EMD GP40-2 series locomotives. The rebuild involves replacing the existing prime mover with an EPA Tier-II-compliant turbocharged V8 710G3A, with Electronic fuel injection. The prime mover is mated to an AR10 alternator for traction power, a CA6 alternator for control power, and a computerized control system. Applying this to a 6-axle locomotive results in a SD22ECO. Some 6-axle locomotives could alternately be converted into a SD32ECO, using a 3,150 hp (2,350 kW) V12 instead.
When applied to GP40 or GP40-2 series locomotives, this conversion does not alter the external appearance of the locomotive, although the conversion of the GP9-based demonstrator required extensive changes to the long hood. The GP22ECO offers customers a 'factory' upgrade of existing locomotives.
Norfolk Southern's units were rebuilt from GP38AC units. They also feature electrical, mechanical, and emissions improvements.
Recorded from a EMD GP22ECO
This project has a notch based low idle. It has a single turbo late (silenced) exhaust stack.
File also contains an "Isolation Switch" Mode on F15 when Standing Still.
Pressing F15 while not moving will lower the prime mover and lock the motor. F15 must be turned off to begin moving.
Another Mode is "Reverser In Center Position". When pressing F24 while stopped, the motor will lock so you can throttle through the notches like the prototype in neutral. F24 must be turned off to begin moving.
This project has "Run 8" mode. When turning on F26 with F28 off, the prime mover goes to run 8. Turning off F26 returns the prime mover sounds back to normal mode.
This project has "Coast" mode. When turning on F27 with F28 off, the prime mover goes to idle for coasting purposes. Turning off F27 returns the prime mover sounds back to normal mode.
You can still use F26 and F27 for manual notching. You have to keep both F26 and F27 off before pressing F28 to turn on manual notching. Once F28 is on, you can use F26 to notch up and F27 to notch down. F26, F27, and F28 must be turned off to return to normal mode.
This project has "Load" mode. When turning on F29 with F15, F24, F26, F27, F28 off, the prime mover goes into load mode. While you are using load mode, the prime mover will notch up 1 or more notches based on primary load settings(CV104). The throttle notches up using speed instead of requested speed while using the load feature. F29 must be turned off to return to normal mode.
Prime mover volume selection mode. By default the prime mover has volume dynamics. Meaning idle is soft while notch 8 is loud. This is very prototypical. The next option is volume maxed out. Meaning idle and notch 8 are the same volume. This is more suitable for people who like it loud.
Change the sound configuration of the prime mover sound slot 1
CV31 = 16, CV32 = 1
----------------------
CV263 = 0 Prime Mover Dynamic Volume Control
CV263 = 1 Prime Mover Max Volume
This file is also equipped with a Smart Start feature that cycles the prime mover on and off at intervals of your choice if the throttle is left at Idle and the loco is stopped.
Smart Start (Sound CV14):
CV168=0 No Smart Start Cycle - Default
CV168=1 - 3 Minute Cycle
CV168=2 - 6 Minute Cylcle
CV168=3 - 9 Minute Cylcle
CV168=4 - 12 Minute Cylcle
Etc.....
CV168=255 - 765 Minute Cycle
3rd Generation Horn Pack 1
Horns (SoundCV9):
CV163=0 Leslie RS-3L
CV163=1 Leslie RS-5T-RRO
CV163=2 Nathan K-2H
CV163=3 Nathan K-3HL
CV163=4 Nathan K-3L
CV163=5 Nathan K-3LA
CV163=6 Nathan K-5HL-R2
CV163=7 Nathan K-5H-R24
CV163=8 Nathan K-5L
CV163=9 Nathan K-5LA
CV163=10 Nathan K-5LA-R24
CV163=11 Nathan K-5LLA-R1L
CV163=12 Nathan K-5L-R24
CV163=13 Nathan P-3
CV163=14 Nathan P-5-R24
EMD 3rd Generation Bell Template Pack 1
Bells (SoundCV10):
CV164=0 EMD 8475495 Steel Bell 037
CV164=1 EMD 8475495 Steel Bell 046
CV164=2 EMD 8475495 Steel Bell 056
CV164=3 Graham-White E-Bell 006
CV164=4 Graham-White E-Bell 009
Auto Bell:
Many Second and Third Generation locomotives have been fitted with an Automatic Bell that is triggered when the horn is blown. In MANY cases this cannot even be bypassed on modern locos. Before the FRA mandated this feature on new locomotives the bell was of course turned on and off separately. Some locomotives were delivered with a manual bell and have been converted to an automatic bell. This creates a challenge in sound file creation.
We realize that not every loco with a particular prime mover had this feature. As such we have built in an option to turn the feature on and off. We will set the default in the file to be what is most appropriate for the particular file.
To turn the feature OFF - Auto Bell OFF:
1. Remove the Auto bell sound slot from the function mapping chart
CV31 = 16, CV32 = 8
----------------------
CV311 = 4
2. Change the sound configuration of the Auto bell sound slot
CV31 = 16, CV32 = 1
----------------------
CV287 = 0
To turn the feature ON - Auto Bell ON:
1. ADD the Auto bell sound slot from the function mapping chart
CV31 = 16, CV32 = 8
----------------------
CV311 = 12
2. Change the sound configuration of the Auto bell sound slot
CV31 = 16, CV32 = 1
----------------------
CV287 = 1
Auto Bell Timer:
The Bell timer is amount of time the bell will play after the horn if the auto timer is active. The timer is broken down into 1/4 of a second increments.
CV169=4 - 1 Second
CV169=8 - 2 Seconds
CV169=12 - 3 Seconds
CV169=16 - 4 Seconds
CV169=20 - 5 Seconds - Default
Etc...
3rd Generation Brake Squeal Template Pack 1 (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Composition Shoe #2
EMD 3rd Generation Air Dryer Template Pack 1 (SoundCV12)
CV166=0 GP60 Air Dryer 1
CV166=1 SD60E Air Dryer 2
CV166=2 SD70M-2 Air Dryer 3
CV166=3 SD70MAC Air Dryer 4
S0821 - Release Notes
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V-4 R-4:
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- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- auto bell not working fix
V-5 R-5:
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- Prime mover volume selection mode
V-6 R-6:
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- Prime mover volume selection mode fix Hide description more…
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