| Spec | Description |
|---|---|
| S1 | Error signal |
| S2 | Spare |
| S3 | Track reference signal |
| S4 | Track/release switch signal |
| S5 | Gain (K) |
| S6 | Proportional constant (KP) |
| S7 | Integral constant (KI, 1/minute) |
| S8 | Derivative constant (KD, minute) |
| S9 | High output limit |
| S10 | Low output limit |
| Block | Type | Description |
|---|---|---|
| N | Real | PID signal (EU) |