The 01 series was the first locomotive in the standard locomotive program of the German Reichsbahn-Gesellschaft DRG. 231 samples were put into service between 1925 and 1937. The 2240 hp two-cylinder locomotive reached 120 km/h with 800 mm wheelsets in the front bogie, and 130 km/h with the 1000 mm wheels installed from locomotive number 01 102. The 01 were indispensable in express train service on both German state railways, which is why the DB 50 and the DR 35 locomotives were modernized and, for example, equipped with new boilers. Nevertheless, the original locomotives were still allowed to show what they could do in front of heavy trains in the 1970s.
| Key | Functions | Sound slots | Volume CVs | Volume values |
|---|
| F0 | front light | 16 | 379 | 5 |
| F1 | sound on/off | 1, 2, 28, 32 | 259, 267, 475, 507 | 220, 220, 15, 3 |
| F2 | whistle | 3 | 275 | 255 |
| F3 | train driver's dialog #1 | 7 | 307 | 100 |
| F4 | coal shoveling | 5 | 291 | 30 |
| F5 | heavy load | | | |
| F6 | acceleration/brake time, shunting mode/shunting speed | | | |
| F7 | curve squeal | 15 | 371 | 30 |
| F8 | AUX#1 | | | |
| F9 | cylinder blow out | 9 | 323 | 130 |
| F10 | conductor's signal | 10 | 331 | 48 |
| F11 | coupler clank | 8 | 315 | 70 |
| F12 | coasting | | | |
| F13 | set brake/brake release (automaticly) | 13 | 355 | 50 |
| F14 | train driver's dialog #2 | 14 | 363 | 100 |
| F15 | ESU smoke generator | | | |
| F16 | safety valve | 12 | 347 | 128 |
| F17 | brake function 1 (brake valve sound) | 25 | 451 | 40 |
| F18 | train driver's dialog #3 | 22 | 427 | 100 |
| F19 | water pump (slow) | 21 | 419 | 50 |
| F20 | injector | 20 | 411 | 32 |
| F21 | water refill | 18 | 395 | 40 |
| F22 | dumping | 19 | 403 | 70 |
| F23 | turbo generator off/on | | | |
| F24 | air pump (slow) | 6 | 299 | 35 |
| F25 | sanding valve | 11 | 339 | 35 |
| F26 | sound fader | | | |
| F27 | disable brake squeal sound | | | |
| F28 | Stuffing box in slow speed on/off | | | |
| F29 | air pump (fast) | 27 | 467 | 35 |
| F30 | water pump fast | 26 | 459 | 50 |
Make sure that index CV31 is set to 16 and index CV32 is set to 1 before changing a volume CV.