| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | front light on/off | 19 | 403 | 5 |
| F1 | sound on/off | 1, 2, 24 | 259, 267, 443 | 108, 108, 108 |
| F2 | long whistle | 3 | 275 | 128 |
| F3 | short whistle | 16 | 379 | 128 |
| F4 | turbo fan for coal dust firing | 5 | 291 | 90 |
| F5 | air pump | 6 | 299 | 108 |
| F6 | acceleration/brake time, shuting mode/shunting speed | |||
| F7 | curve squeal | 15 | 371 | 90 |
| F8 | AUX 1 | |||
| F9 | cylinder blow out | 9 | 323 | 108 |
| F10 | conductor's signal | 10 | 331 | 108 |
| F11 | coupler clank | 8 | 315 | 108 |
| F12 | sanding valve | 11 | 339 | 108 |
| F13 | brake set / brake release | 13 | 355 | 108 |
| F14 | station announcement #1 | 7 | 307 | 100 |
| F15 | station announcement #2 | 22 | 427 | 70 |
| F16 | safety valve | 12 | 347 | 108 |
| F17 | rail clank | 17 | 387 | 108 |
| F18 | dumping | 14 | 363 | 108 |
| F19 | Wasserpumpe | 21 | 419 | 108 |
| F20 | 20 | 411 | 108 |