| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | front light | 21 | 419 | 40 |
| F1 | sound on/off | 1, 2, 24 | 259, 267, 443 | 128, 128, 60 |
| F2 | short whistle | 16 | 379 | 128 |
| F3 | whistle | 3 | 275 | 128 |
| F4 | conductor's signal | 10 | 331 | 60 |
| F5 | coal shoveling | 5 | 291 | 100 |
| F6 | acceleration/brake time, shuting mode/shunting speed | |||
| F7 | AUX 1 | |||
| F8 | air pump | 6 | 299 | 20 |
| F9 | water pump | 22 | 427 | 105 |
| F10 | injector | 20 | 411 | 100 |
| F11 | coupler clank | 8 | 315 | 40 |
| F12 | sand | 11 | 339 | 20 |
| F13 | brake release-/set brake | 13 | 355 | 50 |
| F14 | station announcement | 7 | 307 | 70 |
| F15 | cylinder blow out | 9 | 323 | 128 |
| F16 | dumping | 14 | 363 | 128 |
| F17 | safety valve | 12 | 347 | 128 |
| F18 | rail clank | 17 | 387 | 60 |
| F19 | curve squeal | 15 | 371 | 90 |